Energy efficiency control method, display device, storage medium, and product

Abstract

This application discloses an energy efficiency control method, display device, storage medium, and product, relating to the field of energy-saving technology for display devices. The method involves obtaining the proportion of each brightness range in an energy efficiency test source to construct a brightness distribution; determining a total power limit based on the energy efficiency level; and determining the target brightening area and its corresponding fixed power based on a preset basic brightness threshold; determining adjustable power based on the total power limit and fixed power; and allocating the adjustable power to the remaining screen areas except the target brightening area based on the brightness distribution, thereby generating energy efficiency control parameters. By obtaining the brightness distribution, the frequency of occurrence of each brightness range is quantified. The total power limit is determined based on the energy efficiency level, and the fixed power of the target brightening area is locked based on the preset basic brightness threshold, thus decomposing the total power into fixed power and adjustable power. Then, based on the brightness distribution, the adjustable power is allocated to the remaining screen areas, achieving precise coordination between brightness and power, and significantly improving debugging efficiency.

Description

Technical Field

[0001] This application relates to the field of energy-saving technology for display devices, and in particular to an energy efficiency control method, display device, storage medium, and product. Background Technology

[0002] Currently, with the rapid development of display technology, backlit TVs are widely used due to their ability to achieve high dynamic contrast and wide color gamut. To fully leverage the display advantages of backlit TVs, a local dimming backlight control strategy is commonly adopted to enhance contrast. This involves adjusting the backlight brightness of each zone in real time according to the content of the image to improve the contrast between light and dark areas. Simultaneously, to further enhance the peak brightness and visual impact of the image, many TVs have introduced a boost (Boost Mode, backlight brightness enhancement function), which temporarily increases the backlight drive current in specific high-brightness scenes, causing the local brightness to exceed the normal operating range. Regarding energy efficiency management, TV products must meet energy efficiency standards, typically by reducing overall power consumption through dynamic backlight adjustment and overall power limiting. The current common debugging method involves using engineers' subjective image quality evaluation and power testing equipment in a laboratory, adjusting and observing the actual display effect, repeatedly adjusting backlight parameters until both image quality requirements and energy efficiency limits are simultaneously met.

[0003] However, in display devices with boost functionality, enabling boost significantly increases overall power consumption, while the mandatory constraints of energy efficiency standards require reducing average brightness to save energy. These two issues are contradictory, and the current debugging process relies on engineers' experience and repeated experiments, resulting in a time-consuming, labor-intensive, and inefficient energy efficiency debugging process. Summary of the Invention

[0004] The main purpose of this application is to provide an energy efficiency control method, display device, storage medium and product, which aims to solve the technical problems in traditional display device energy efficiency control schemes, such as the difficulty in coordinating brightness and power control, resulting in long debugging process, high labor costs and low efficiency.

[0005] To achieve the above objectives, this application proposes an energy efficiency control method applied to a display device, the energy efficiency control method comprising: Obtain the percentage of each brightness range in the energy efficiency test video source played by the display device, and construct a brightness distribution based on the percentage of the range; The total power limit is determined according to the energy efficiency level of the display device, and the target brightening area and the fixed power corresponding to the target brightening area are determined according to the preset basic brightness threshold. The adjustable power is determined based on the total power limit and the fixed power; Based on the brightness distribution, the adjustable power is allocated to the remaining screen areas except for the target brightening area to generate the energy efficiency control parameters of the display device.

[0006] In addition, to achieve the above objectives, this application also proposes a display device, the display device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the energy efficiency control method as described above.

[0007] In addition, to achieve the above objectives, this application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the energy efficiency control method described above.

[0008] In addition, to achieve the above objectives, this application also provides a computer program product, which includes a computer program that, when executed by a processor, implements the steps of the energy efficiency control method described above.

[0009] This application obtains the proportion of each brightness range in the energy efficiency test video source played on the display device, constructs a brightness distribution based on the proportion of the range, determines the total power limit according to the energy efficiency level of the display device, and determines the target brightening area and the fixed power corresponding to the target brightening area based on a preset basic brightness threshold; determines the adjustable power based on the total power limit and the fixed power; and allocates the adjustable power to the remaining screen areas except for the target brightening area based on the brightness distribution, generating the energy efficiency control parameters of the display device. In other words, this application obtains the brightness distribution of the energy efficiency test video source, separates the fixed power corresponding to the target brightening area that meets the preset basic brightness threshold from the total power limit to obtain the adjustable power, and then allocates the adjustable power to the remaining areas according to the brightness distribution, realizing the quantitative coordination of brightness data and power budget. Therefore, it can accurately calculate the energy efficiency control parameters that simultaneously meet the preset basic brightness threshold and energy efficiency power limit, avoiding repeated debugging of traditional energy efficiency control methods, reducing debugging time, lowering labor costs, and significantly improving energy efficiency debugging efficiency. Attached Figure Description

[0010] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a flowchart illustrating an embodiment of the energy efficiency control method of this application. Figure 2 This is a schematic diagram of the brightness change curve of the energy efficiency test chip source over time, provided in Embodiment 1 of the energy efficiency control method of this application. Figure 3 This is a schematic diagram of the brightness distribution histogram of the energy efficiency test chip provided in Embodiment 1 of the energy efficiency control method of this application; Figure 4 This is a schematic diagram of the target brightening area provided in Embodiment 1 of the energy efficiency control method of this application; Figure 5 This is a flowchart illustrating Embodiment 2 of the energy efficiency control method of this application; Figure 6 This is a schematic diagram of the hardware operating environment involved in the display device in the embodiments of this application.

[0013] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0014] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0015] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0016] The main solution of this application embodiment is as follows: obtain the interval ratio of each brightness interval in the energy efficiency test video source played by the display device, and construct a brightness distribution based on the interval ratio; determine the total power limit according to the energy efficiency level of the display device, and determine the target brightening area and the fixed power corresponding to the target brightening area based on the preset basic brightness threshold; determine the adjustable power based on the total power limit and the fixed power; and allocate the adjustable power to the remaining screen areas except for the target brightening area based on the brightness distribution to generate the energy efficiency control parameters of the display device.

[0017] Currently, with the rapid development of display technology, backlit TVs are widely used due to their ability to achieve high dynamic contrast and wide color gamut. To fully leverage the display advantages of backlit TVs, a local dimming backlight control strategy is commonly adopted to enhance contrast. This involves adjusting the backlight brightness of each zone in real time according to the content of the image to improve the contrast between light and dark areas. Simultaneously, to further enhance the peak brightness and visual impact of the image, many TVs have introduced a boost (Boost Mode, backlight brightness enhancement function), which temporarily increases the backlight drive current in specific high-brightness scenes, causing the local brightness to exceed the normal operating range. Regarding energy efficiency management, TV products must meet energy efficiency standards, typically by reducing overall power consumption through dynamic backlight adjustment and overall power limiting. The current common debugging method involves using engineers' subjective image quality evaluation and power testing equipment in a laboratory, adjusting and observing the actual display effect, repeatedly adjusting backlight parameters until both image quality requirements and energy efficiency limits are simultaneously met.

[0018] However, in display devices with boost functionality, enabling boost significantly increases overall power consumption, while the mandatory constraints of energy efficiency standards require reducing average brightness to save energy. These two issues are contradictory, and the current debugging process relies on engineers' experience and repeated experiments, resulting in a time-consuming, labor-intensive, and inefficient energy efficiency debugging process.

[0019] This application obtains the proportion of each brightness range in the energy efficiency test video source played on the display device, constructs a brightness distribution based on the proportion of the range, determines the total power limit according to the energy efficiency level of the display device, and determines the target brightening area and the fixed power corresponding to the target brightening area based on a preset basic brightness threshold; determines the adjustable power based on the total power limit and the fixed power; and allocates the adjustable power to the remaining screen areas except for the target brightening area based on the brightness distribution, generating the energy efficiency control parameters of the display device. In other words, this application obtains the brightness distribution of the energy efficiency test video source, separates the fixed power corresponding to the target brightening area that meets the preset basic brightness threshold from the total power limit to obtain the adjustable power, and then allocates the adjustable power to the remaining areas according to the brightness distribution, realizing the quantitative coordination of brightness data and power budget. Therefore, it can accurately calculate the energy efficiency control parameters that simultaneously meet the preset basic brightness threshold and energy efficiency power limit, avoiding repeated debugging of traditional energy efficiency control methods, reducing debugging time, lowering labor costs, and significantly improving energy efficiency debugging efficiency.

[0020] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or a display device capable of performing the above functions. The following description uses a display device as an example to illustrate this embodiment and the subsequent embodiments.

[0021] Based on this, the embodiments of this application provide an energy efficiency control method, referring to... Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the energy efficiency control method of this application.

[0022] In this embodiment, the energy efficiency control method applied to a display device includes steps S10~S40: Step S10: Obtain the percentage of each brightness range in the energy efficiency test video source played on the display device, and construct the brightness distribution based on the percentage of each range. It's important to note that brightness control and power management in display devices are independent. To achieve high dynamic contrast and peak brightness, the boost function needs to be enabled to temporarily increase backlight brightness in specific high-brightness areas. This directly leads to a significant increase in the overall power consumption of the display device. Since the energy efficiency rating of display devices sets a strict upper limit on the total power consumption, requiring that the average brightness not exceed the limit, backlight power consumption must be reduced. Traditional debugging methods handle this contradiction head-on: engineers first set the boost parameters according to the minimum brightness requirement, then test the power; if it exceeds the limit, the overall backlight brightness is reduced, and this process is repeated until a compromise is reached. This debugging method cannot quantify the brightness distribution characteristics and power budget in a coordinated manner; it can only adjust backlight parameters through repeated trial and error, resulting in long debugging cycles, high labor costs, and difficulty in accurately meeting energy efficiency constraints while ensuring image quality. Display devices refer to televisions or monitors with miniLED (Mini Light Emitting Diode) backlighting and support for boost functionality. MiniLED backlighting technology divides the backlight area of ​​the display device into multiple independent zones, each of which can independently adjust its brightness to achieve high contrast display. Boost functionality refers to temporarily increasing the backlight drive current or duty cycle in specific high-brightness scenes on a display device, causing the local backlight brightness to exceed the normal operating range, thereby enhancing the display device's brightness performance. Energy efficiency test data sources refer to dedicated video or image sequences specified in industry energy efficiency standards for testing the power consumption and energy efficiency levels of display devices. The duration and brightness variations of energy efficiency test data sources follow fixed patterns, ensuring the fairness and reproducibility of the test. A brightness range refers to dividing the brightness range (usually expressed as grayscale values, e.g., 0-255) that a display device can output into multiple consecutive levels, for example, dividing it into 32 parts, each part being a brightness range. Range percentage refers to the proportion of frames with brightness values ​​within a certain brightness range out of all frames in the entire energy efficiency test data source. Brightness distribution refers to the statistical histogram formed by all brightness ranges and their corresponding range percentages.

[0023] Specifically, the display device first uses built-in software tools (such as brightness analysis algorithms) to perform full-time data acquisition of the energy efficiency test footage. This means extracting brightness data frame by frame from the first frame to the last, and recording the total number of frames. Then, the brightness range is divided into multiple preset brightness levels (e.g., 32 equal parts), and the number of frames within each brightness level is counted. The proportion of frames at each brightness level to the total number of frames is calculated to obtain the percentage of frames within each brightness level. Finally, a mapping relationship is established between brightness levels and the percentage of frames within each brightness level to obtain the brightness distribution.

[0024] Understandably, by acquiring the proportion of each brightness range in the energy efficiency test footage played on the display device, and constructing a brightness distribution based on these proportions, the energy efficiency test footage is transformed into a calculable brightness distribution. This allows subsequent power allocation to be weighted based on the actual frequency of occurrence of each brightness range, thereby achieving precise coordinated control of brightness and power and avoiding subjective biases from human experience. The establishment of the brightness distribution ensures that power allocation matches the frequency of brightness occurrence in the image, thus improving overall energy efficiency and laying a data foundation for meeting energy efficiency constraints while maintaining image quality.

[0025] In one feasible implementation, the step of obtaining the proportion of each brightness range in the energy efficiency test video source played by the display device and constructing the brightness distribution based on the proportion of the range includes steps S101~S104: Step S101: Perform full-time acquisition of brightness data from the energy efficiency test source to obtain brightness time-series data; Step S102: Divide the brightness timing data into multiple preset brightness levels and count the number of frames under each preset brightness level. Step S103: Calculate the proportion of each frame to the total number of frames to obtain the proportion of frames in each preset brightness level. Step S104: Establish the mapping relationship between each preset brightness level and the screen proportion of each interval to obtain the brightness distribution.

[0026] It should be noted that, referring to Figure 2 , Figure 2This diagram illustrates the brightness variation over time of an energy efficiency test source image provided in Embodiment 1 of the energy efficiency control method of this application. The horizontal axis represents time (in minutes, e.g., 0-10 minutes), and the vertical axis represents image brightness (in grayscale values ​​or relative brightness values). This curve represents the brightness time series obtained from full-time acquisition of the energy efficiency test source image, reflecting the brightness change at each moment in the source image. Full-time acquisition refers to continuously recording the brightness data of each frame in chronological order, starting from the first frame (or the first time point) of the energy efficiency test source image and ending at the last frame (or the last time point). The brightness time series data is a sequence of brightness values ​​that change over time, which can be represented as an array [L1, L2, L3, ..., Ln], where Li represents the average or peak brightness of the i-th frame. The preset brightness level is a pre-divided continuous interval of the brightness range (e.g., 0-255 grayscale values) that the display device can output, for example, divided into 32 equal parts, with each level corresponding to a brightness value range. The number of frames refers to the number of frames whose brightness values ​​fall within different preset brightness levels. Total frame rate refers to the total number of frames in the energy efficiency test footage (e.g., a 10-minute video at 30 frames per second has a total of 18,000 frames). Range percentage refers to the proportion of frames at a specific preset brightness level out of the total frame rate; it reflects the frequency of that preset brightness level throughout the entire energy efficiency test footage. Mapping relationship refers to establishing the correspondence between brightness levels and range percentages, typically represented by a histogram or data table. (Refer to...) Figure 3 , Figure 3 This is a schematic diagram of the brightness distribution histogram of the energy efficiency test source provided in Embodiment 1 of the energy efficiency control method of this application. The horizontal axis represents multiple preset brightness levels (e.g., 32 equal parts) into which the brightness values ​​are divided, and the vertical axis represents the proportion of each brightness level within its corresponding interval. This curve represents the brightness distribution obtained by statistically analyzing the number of frames at each brightness level, and is used to construct a brightness distribution model.

[0027] Understandably, in traditional technologies, engineers rely solely on visual observation of brightness changes in source material, making it impossible to accurately determine the specific frequency of each brightness level. This leads to only average or roughly adjusting backlight brightness during subsequent power allocation. This application, by acquiring brightness data from energy efficiency test source material in real-time, preserves complete temporal information of brightness changes, avoiding information loss caused by averaging brightness data and providing a data foundation for subsequent statistics. By dividing continuous brightness values ​​into multiple preset brightness levels, subsequent calculations become feasible and efficient. By calculating the screen proportion within each preset brightness level, the frame rate is converted into the relative frequency of different intervals, making energy efficiency source materials of different lengths comparable. By establishing a mapping relationship between each preset brightness level and the screen proportion within each interval, the brightness distribution of the energy efficiency test source material is finally obtained, improving the rationality of power allocation and energy efficiency utilization, and avoiding power waste or brightness distortion problems in traditional energy efficiency debugging processes.

[0028] Step S20: Determine the total power limit based on the energy efficiency level of the display device, and determine the target brightening area and the fixed power corresponding to the target brightening area based on the preset basic brightness threshold. It's important to note that energy efficiency rating refers to the energy efficiency level achieved by a display device according to national or industry standards, such as Level 1, 2, or 3 in the China Energy Efficiency Label. Different energy efficiency ratings correspond to different maximum allowable power consumption for the entire device; the higher the energy efficiency rating (the smaller the number), the stricter the power consumption restrictions. Total power limit refers to the maximum input power allowed for the entire display device (including the backlight module, main control chip, and driver circuit) while meeting the corresponding energy efficiency rating. Preset basic brightness threshold refers to the minimum brightness standard set to ensure the contrast and detail clarity of the displayed image. Target brightening area refers to the area in the energy efficiency test source where the brightness is lower than the minimum brightness threshold specified by the preset basic brightness threshold. These areas require the use of the boost function to increase brightness and ensure image quality. Fixed power refers to the backlight drive power consumed to increase the target brightening area from its current brightness to the required minimum brightness threshold.

[0029] Specifically, the target energy efficiency level required for the display device is determined according to its product definition. Then, the corresponding maximum allowable power consumption of the entire device is obtained from a preset energy efficiency power mapping relationship (such as by looking up a table or formula calculation), which serves as the total power limit. A preset base brightness threshold (e.g., brightness value 66, range 0-255) is set according to the image quality calibration specifications. Then, the energy efficiency test source is analyzed frame by frame to identify all areas of the screen with brightness below the threshold, and these areas are marked as target brightening areas. Next, based on the relationship curve between backlight drive current and brightness, the additional power required to bring the target brightening area to the preset base brightness threshold is calculated. This power, plus the power originally consumed by the target brightening area, is the fixed power. For example, if the current brightness of the target brightening area is 50, to reach 66, the backlight drive duty cycle needs to be increased from 40% to 55%, resulting in an increased power consumption of 2W. Adding this to the original power consumption of 3W, the fixed power is 5W.

[0030] Understandably, clearly defining the total power limit provides a basis for the energy consumption design of display devices, ensuring that products can pass energy efficiency certification. By identifying target brightening areas and calculating fixed power, the minimum image quality is quantified and locked, avoiding sacrificing the display effect of critical images during energy saving. Using the difference between the total power limit and the fixed power as adjustable power provides a clear budget boundary for subsequent brightness power coordination, enabling the overall control strategy to both meet energy efficiency requirements and precisely control power.

[0031] In one feasible implementation, the step of determining the total power limit based on the energy efficiency level of the display device includes steps S201-S203: Step S201: Obtain the energy efficiency rating of the display device, wherein the energy efficiency rating is determined by the product definition of the display device; Step S202: Based on the target energy efficiency level, query the corresponding upper limit value of power from the preset energy efficiency power mapping relationship table; Step S203: Determine the upper limit of power as the total power limit.

[0032] It should be noted that product definition refers to the technical parameters explicitly stated in the display device's specifications or design specifications, including screen size, resolution, backlight type, target market, and corresponding energy efficiency requirements. The preset energy efficiency power mapping table is a data structure pre-stored in the display device's memory or debugging software. This table records the maximum allowable power consumption of the entire device for different energy efficiency levels and different display device specifications (such as different screen sizes and different numbers of backlight zones). The power limit is the maximum allowable power consumption value of the entire device retrieved from the table. The total power limit refers to the maximum power that the entire display device is allowed to consume, serving as the upper limit constraint for subsequent power budget allocation.

[0033] Understandably, defining target energy efficiency levels through product definition allows display devices of different markets and specifications to flexibly adapt to local energy efficiency regulations, enhancing the method's versatility and adaptability. Utilizing a pre-defined mapping table to look up the power limit is more computationally efficient than real-time calculation, and the results are deterministic and repeatable, avoiding the risk of exceeding energy efficiency standards due to calculation errors. A clear total power limit provides a clear upper limit boundary for subsequent power budget decomposition, enabling quantifiable execution of energy efficiency constraints and ensuring that display devices achieve coordinated brightness and power control while meeting energy efficiency standards.

[0034] In one feasible implementation, the step of determining the target brightening area and the fixed power corresponding to the target brightening area based on a preset basic brightness threshold includes steps S301~S302: Step S301: Identify the areas in the energy efficiency test source where the brightness is less than the preset basic brightness threshold, and mark the areas as target brightening areas. Step S302: Calculate the backlight driving power required to make the target brightening area reach the preset basic brightness threshold, and use the backlight driving power as a fixed power.

[0035] It's important to note that the preset base brightness threshold refers to the minimum brightness standard set to ensure the contrast, detail, and visual impact of the displayed image. It is typically derived from product specifications or image quality calibration guidelines. The preset base brightness threshold is a specific brightness value, representing the minimum display brightness required to guarantee image quality; for example, setting the threshold to 66 within a grayscale range of 0-255. This threshold can be dynamically adjusted according to different display modes (such as standard mode and cinema mode). The target brightening area refers to the area in the energy efficiency test source where the original brightness is lower than the preset base brightness threshold. These areas may be localized (e.g., shadow details in the image, dark areas of highlighted objects) or entire frames. Backlight drive power refers to the electrical power required to drive the miniLED backlight zones to achieve the target brightness, usually proportional to the drive current. Fixed power refers to the backlight power consumed to raise the target brightening area from its current brightness to the preset base brightness threshold. (See reference...) Figure 4 , Figure 4 This diagram illustrates the target brightening area provided in Embodiment 1 of the energy efficiency control method of this application. The horizontal axis represents the preset brightness level (for example, dividing the brightness range of 0-255 into 32 equal parts, with the brightness level increasing from left to right), and the vertical axis represents the number of frames and the percentage of the frame corresponding to each brightness level. The diagram, marked with a red box, illustrates the target brightening area that needs to be boosted, determined according to a preset basic brightness threshold, in a certain frame of the energy efficiency test source, as well as the minimum brightness control threshold corresponding to this area (for example, a brightness value of 66, with a range of 0-255).

[0036] Understandably, the preset base brightness threshold can be flexibly adjusted according to different application scenarios. For example, a higher threshold can be set in cinema mode, while a lower threshold can be set in energy-saving mode, enhancing the method's adaptability. Secondly, by analyzing the brightness of the energy-efficient test source frame-by-frame or region-by-region, all areas below the threshold are identified and marked as target brightening areas. Based on pixel-level brightness comparison or regional average brightness comparison, it is ensured that no area requiring boosting is overlooked. Finally, the backlight drive power required to bring the target brightening area to the preset base brightness threshold is calculated. By setting the preset base brightness threshold, it is quantified into a calculable technical parameter, making image quality assurance no longer an empirical judgment but a precise engineering constraint. By identifying and marking the target brightening areas, limited adjustable power is avoided from being wasted on areas where brightness enhancement is unnecessary, thereby improving power utilization efficiency. By calculating a fixed power, the image quality baseline is transformed into a specific power budget item, ensuring that in subsequent energy efficiency control, image quality assurance and energy efficiency constraints are no longer conflicting extremes but can be achieved collaboratively within a unified budget framework.

[0037] Step S30: Determine the adjustable power based on the total power limit and the fixed power; It should be noted that the total power limit refers to the maximum allowable power consumption of the entire display device, determined by its energy efficiency rating; it is the upper limit of power allocation. Fixed power refers to the backlight drive power required to ensure the image quality of the target brightening area; it is the lower limit of power allocation. Adjustable power refers to the remaining power that can be flexibly allocated to other screen areas, provided that energy efficiency constraints (total power limit) and image quality assurance (fixed power) are met.

[0038] Preferably, the adjustable power is obtained by subtracting the fixed power determined in step S20 from the total power limit determined in step S20.

[0039] Understandably, in traditional debugging methods, engineers often directly adjust the total backlight power without considering the total power limit of the display device and the fixed power required to maintain minimum image quality separately, leading to blind and iterative adjustments. This step clearly decomposes the total power limit into two parts: fixed power and adjustable power, providing a clear budget boundary for subsequent power allocation. That is, the fixed power cannot be changed, while the adjustable power can be allocated as needed.

[0040] Step S40: Based on the brightness distribution, the adjustable power is allocated to the remaining screen areas except for the target brightening area to generate the energy efficiency control parameters of the display device.

[0041] It should be noted that brightness distribution refers to a statistical histogram or mapping relationship composed of various brightness ranges and their corresponding screen proportions, which can quantify the frequency of different brightness levels in the energy efficiency test source. Adjustable power refers to the power remaining after subtracting the fixed power from the total power limit, which can be allocated to non-target brightening areas. Target brightening areas refer to screen areas that need to be boosted to reach a preset base brightness threshold to ensure image quality. These areas have already been allocated fixed power and therefore do not participate in the allocation of adjustable power. Other screen areas refer to all screen areas in the energy efficiency test source other than the target brightening areas. These areas do not have a mandatory brightening requirement, and their backlight power can be obtained from the adjustable power. Energy efficiency control parameters are the final data set generated to guide the actual backlight driving of the display device. They are usually represented as a brightness power co-control table or control curve, recording the backlight driving power values ​​that should be allocated to different brightness levels.

[0042] Specifically, firstly, based on the proportion of each brightness interval in the screen within the brightness distribution, the allocation weight of each brightness interval in the adjustable power is determined. Preferably, the allocation method can be to directly use the proportion of the screen within the interval as the weight, meaning the higher the frequency of a certain brightness interval, the larger the share of adjustable power it receives. For example, if the proportion of the screen within brightness level 1 is 5%, then the adjustable power allocated to that level is 5% of the total adjustable power. Secondly, according to the allocation weights determined above, the adjustable power is allocated interval by interval to the corresponding brightness intervals in the remaining screen areas, excluding the target brightening area. During allocation, the brightness level or pixel area occupied by the target brightening area needs to be excluded to avoid duplicate power allocation. For example, if the adjustable power is 100W, if brightness level 1 accounts for 5%, then 5W is allocated; if brightness level 2 accounts for 10%, then 10W is allocated, and so on, until all brightness intervals are allocated. Finally, the power values ​​allocated to each brightness interval are integrated with the fixed power corresponding to the target brightening area to form complete energy efficiency control parameters. Energy efficiency control parameters can be presented as a two-dimensional table, with rows corresponding to brightness levels (or brightness ranges) and columns corresponding to backlight drive power values. Alternatively, they can be fitted as a continuous brightness-power curve, storing its key nodes or fitting coefficients. The generated energy efficiency control parameters are stored in the display device's memory for later retrieval during actual display.

[0043] Understandably, in traditional debugging methods, engineers cannot precisely know how much power should be allocated to each brightness level, and can only rely on experience to globally reduce or increase backlight brightness, leading to either excessive energy efficiency or uneven image quality. This application achieves precise coordination between power allocation and image content by using brightness distribution as the allocation weight, avoiding power waste or brightness distortion caused by uniform allocation, and significantly improving energy efficiency. By generating standardized energy efficiency control parameters (such as tables or curves), the debugging results can be directly loaded into the display device, achieving a smooth transition from offline calculation to online control, greatly improving debugging efficiency and control accuracy, and significantly reducing production testing costs.

[0044] In one feasible implementation, the step of allocating adjustable power to the remaining screen areas excluding the target brightening area based on brightness distribution to generate energy efficiency control parameters for the display device includes steps S401-S403: Step S401: Determine the weight of each brightness interval in the adjustable power based on the screen proportion of each brightness interval in the brightness distribution. Step S402: According to the allocation weight, the adjustable power is allocated to the corresponding brightness range of the remaining screen areas in turn. Step S403: Integrate the power values ​​allocated to each brightness range and the fixed power to generate energy efficiency control parameters.

[0045] It should be noted that brightness distribution refers to a statistical model composed of each brightness level and its corresponding interval screen proportion, reflecting the frequency of different brightness levels appearing in the energy efficiency test source. The interval screen proportion is the percentage of frames at a certain brightness level out of the total number of frames, ranging from 0 to 1, with the sum of the interval screen proportions for all brightness levels being 1. The allocation weight is a proportional coefficient used to determine how much of the adjustable power each brightness interval receives, and its sum is 1. Interval allocation means calculating the power value that each brightness interval should receive according to the order of brightness level division, excluding target brightening areas (these areas are already covered by fixed power). Integration means merging the power values ​​allocated to each brightness interval with the fixed power of the target brightening area to form a unified set of energy efficiency control parameters. The energy efficiency control parameters are the final output data set, which can be represented as a brightness-power comparison table or a control curve.

[0046] Specifically, firstly, the allocation weights are determined based on the proportion of each brightness interval in the screen image. Brightness levels that appear more frequently in the energy efficiency test source receive more power budget, thus improving the overall energy efficiency of the display device. Adjustable power is then allocated interval by interval to the corresponding brightness intervals in the remaining screen areas according to the allocation weights. During allocation, it is important to exclude pixels or partitions occupied by the target brightening area to avoid duplicate allocation. The power values ​​allocated to each brightness interval are integrated with the fixed power to generate energy efficiency control parameters. During integration, the fixed power is usually bound to the brightness level corresponding to the target brightening area, while the remaining brightness levels are bound to their respective allocated power values. The final generated energy efficiency control parameters can be stored as a brightness-power co-control table, with each row recording a brightness level and its corresponding backlight drive power value. Alternatively, they can be fitted into a continuous brightness-power control curve and stored as a curve equation or key nodes.

[0047] Understandably, by directly using the proportion of the screen area within the brightness distribution as the allocation weight, precise matching between power allocation and screen statistical characteristics is achieved. This ensures that the limited power budget is used at the most needed brightness levels, improving power utilization efficiency. The interval-by-interval allocation method guarantees that each brightness level receives power proportional to its frequency of occurrence, avoiding the problem of excessive power in low-brightness areas and insufficient power in high-brightness areas caused by uniform allocation in traditional methods. The energy efficiency control parameters generated after integrating fixed power include both the rigid power required for image quality assurance and the flexible power allocated according to brightness distribution, forming a complete and executable brightness-power coordinated control scheme. This provides a direct basis for display devices to achieve dynamic energy saving and image quality assurance in actual operation.

[0048] In one feasible implementation, the step of determining the allocation weight of each brightness interval in the adjustable power based on the screen proportion of each brightness interval in the brightness distribution includes steps S501~S503: Step S501: Obtain the brightness level value corresponding to each brightness range; Step S502: Multiply the screen ratio of each brightness range by the brightness level value corresponding to each brightness range to obtain each weighted value. Step S503: Normalize each weighted value and use the normalized weighted value as the allocation weight of each brightness range in the adjustable power.

[0049] It should be noted that a brightness range refers to a continuous series of levels dividing the brightness output range of a display device (e.g., 0-255 grayscale values), with each range corresponding to a brightness level. A brightness level value is a numerical value representing that brightness range, typically taken as the midpoint or average brightness value of that range. For example, if 0-255 is divided into 32 ranges, the brightness level value for range 1 (0-7) could be 4, and the brightness level value for range 32 (248-255) could be 252. The range frame percentage refers to the proportion of frames in the energy efficiency test source that fall within that brightness range out of the total number of frames, reflecting the frequency of that brightness level in the source material. The weighted value is the result of multiplying the range frame percentage by the brightness level value, taking into account both the frequency of occurrence of that brightness level and the brightness level itself. Normalization involves dividing the weighted value of each brightness range by the sum of all weighted values, ensuring that the sum of the processed weights is 1. The allocation weight is a proportional coefficient used to determine how much of the adjustable power each brightness range receives, and its sum is 1.

[0050] The process begins by obtaining the luminance level value for each luminance interval, reflecting its absolute position on the luminance axis. The interval's screen proportion is multiplied by the luminance level value to obtain a weighted value. For a luminance interval, even if its frequency of occurrence is low (small screen proportion), if it belongs to a high-luminance interval (large luminance level value), its weighted value may still be large, thus receiving higher weight in subsequent allocation. Conversely, even if a low-luminance interval occurs frequently, its weighted value will be suppressed due to its small luminance level value. Each weighted value is then normalized to ensure the sum of the allocation weights for all luminance intervals is 1, allowing for complete allocation of adjustable power. After normalization, high-luminance intervals, due to their large luminance level values, typically receive higher allocation weights and thus receive more adjustable power, while low-luminance intervals receive less power. By introducing the luminance level value as a weighting factor, power allocation is tilted towards high-luminance intervals, aligning with the human eye's greater sensitivity to bright areas. This prioritizes power supply to high-luminance scenes within a limited power budget, improving overall perceived brightness.

[0051] Based on the first embodiment of this application, in the second embodiment of this application, the content that is the same as or similar to that in the first embodiment described above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 5 After the step of allocating adjustable power to the remaining screen areas excluding the target brightening area based on brightness distribution to generate energy efficiency control parameters for the display device, steps A11 to A13 are also included: Step A11: When the display device is playing video, detect the brightness distribution characteristics of the currently playing screen in real time; Step A12: Based on the brightness distribution characteristics, match the corresponding brightness level from the energy efficiency control parameters and read the backlight drive power value corresponding to the brightness level. Step A13: Adjust the actual backlight power of the display device by adjusting the backlight drive power value.

[0052] It should be noted that real-time detection refers to the collection and analysis of brightness information of the current display screen frame by frame or at fixed time intervals (e.g., every 50 milliseconds) during the normal playback of any video content (not limited to energy efficiency test video sources) on the display device. Brightness distribution characteristics refer to the frequency or statistical characteristics of each brightness range in the currently playing screen, such as average brightness, peak brightness, and pixel distribution histograms for each grayscale level. Energy efficiency control parameters refer to the brightness power coordinated control parameters pre-calculated and stored in the first embodiment, typically represented as a correspondence table or fitting curve between brightness levels and backlight drive power values. Matching the corresponding brightness level means comparing the brightness distribution characteristics of the current screen with the predefined brightness levels in the energy efficiency control parameters to find the closest or most suitable brightness level. The backlight drive power value refers to the power value associated with the matched brightness level, which determines the electrical power that the miniLED backlight drive module should output. Adjusting the actual backlight power means changing the magnitude of the backlight drive current based on the read power value, thereby controlling the actual luminous brightness of each zone of the miniLED.

[0053] Understandably, applying offline-generated energy efficiency control parameters to online real-time control allows display devices to automatically maintain the optimal balance between energy efficiency and image quality under any playback content, without user intervention or readjustment. By detecting brightness distribution characteristics in real time and matching corresponding power values, backlight power dynamically follows the image content, avoiding energy waste or brightness distortion caused by fixed backlight power. This allows energy efficiency tuning results to be embedded in the parameters, enabling mass-produced display devices of the same model to load the same set of parameters, reducing production and tuning costs. The real-time adjustment mechanism can handle various complex video scenarios (such as rapidly switching bright and dark scenes, movement of localized bright areas, etc.), ensuring that at any time, the actual power consumption of the display device does not exceed the total power limit specified by the energy efficiency level, while the brightness of key image quality areas does not fall below the guaranteed threshold, thus fundamentally solving the technical problem of the inability to coordinate energy efficiency control and image quality assurance in real time in traditional display devices.

[0054] The energy efficiency control method provided in this application, by acquiring the brightness distribution of the energy efficiency test source, separates the total power limit from the fixed power required to ensure image quality, and then allocates adjustable power to the remaining areas according to the brightness distribution, thus establishing for the first time a quantitative collaborative model between brightness data and power budget. Compared with the traditional blind tuning method that relies on repeated trial and error based on engineers' experience, this application fundamentally solves the contradiction between brightness improvement and energy-saving constraints. Specifically, this method first transforms the abstract energy efficiency test source into a calculable brightness distribution, providing objective statistical weights for power allocation. Second, by decomposing the total power limit into fixed power and adjustable power, it clarifies the rigid lower limit for image quality assurance and the rigid upper limit for energy efficiency constraints, transforming the two from a conflicting relationship into a collaborative relationship under upper and lower limit constraints. Finally, based on the brightness distribution, the adjustable power is allocated according to the proportion of each interval, ensuring that the power budget is used at the most needed high-frequency brightness levels. As a result, this application can accurately calculate the backlight drive parameters that simultaneously meet the minimum brightness requirements for image quality and the energy efficiency power limit, avoiding the blindness and inefficiency of repeated trials in traditional debugging, significantly improving the efficiency of energy efficiency debugging, and reducing labor costs. Meanwhile, because the fixed power ensures a minimum brightness level for the target brightening area, and the adjustable power is optimally distributed according to the brightness profile, the display device maintains minimal impact on image quality while meeting energy efficiency standards. In fact, the power allocation towards higher brightness levels results in even better perceived brightness. In summary, this application achieves precise coordination between brightness and power, unifying efficient debugging, energy saving, and image quality assurance.

[0055] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the energy efficiency control method of this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0056] This application provides a display device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, which are executed by the at least one processor to enable the at least one processor to perform the energy efficiency control method in Embodiment 1 above.

[0057] The following is for reference. Figure 6The diagram illustrates a structural schematic of a display device suitable for implementing embodiments of this application. The display device in the embodiments of this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 6 The display device shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.

[0058] like Figure 6 As shown, the display device may include a processing unit 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the display device. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices 1008 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 1003 including, for example, magnetic tapes, hard disks, etc.; and communication devices 1009. Communication device 1009 allows the display device to communicate wirelessly or wiredly with other devices to exchange data. Although the figures show display devices with various systems, it should be understood that it is not required to implement or possess all of the systems shown. More or fewer systems may be implemented alternatively.

[0059] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0060] The display device provided in this application, employing the energy efficiency control method described in the above embodiments, solves the technical problem in traditional display device energy efficiency control schemes where brightness and power are difficult to control in a coordinated manner, resulting in long debugging processes, high labor costs, and low efficiency. Compared with the prior art, the beneficial effects of the display device provided in this application are the same as those of the energy efficiency control method provided in the above embodiments, and other technical features of this display device are the same as those disclosed in the method of the previous embodiment, and will not be repeated here.

[0061] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0062] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0063] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the energy efficiency control method in the above embodiments.

[0064] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0065] The aforementioned computer-readable storage medium may be included in the display device or may exist independently without being assembled into the display device.

[0066] The aforementioned computer-readable storage medium carries one or more programs, which, when executed by a display device, cause the display device to: obtain the interval proportion of each brightness interval in the energy efficiency test video source played by the display device, and construct a brightness distribution based on the interval proportion; The total power limit of the display device is determined according to the energy efficiency level, and the target brightening area and the fixed power corresponding to the target brightening area are determined according to the preset basic brightness threshold. The adjustable power is determined based on the total power limit and the fixed power; Based on the brightness distribution, the adjustable power is allocated to the remaining screen areas except for the target brightening area to generate the energy efficiency control parameters of the display device.

[0067] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0068] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0069] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0070] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the above-described energy efficiency control method. This solves the technical problem in traditional display device energy efficiency control schemes where brightness and power are difficult to control in a coordinated manner, leading to long debugging processes, high labor costs, and low efficiency. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the energy efficiency control method provided in the above embodiments, and will not be repeated here.

[0071] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the energy efficiency control method described above.

[0072] The computer program product provided in this application can solve the technical problem in traditional display device energy efficiency control schemes where brightness and power are difficult to control in a coordinated manner, resulting in long debugging processes, high labor costs, and low efficiency. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as those of the energy efficiency control method provided in the above embodiments, and will not be repeated here.

[0073] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. An energy efficiency control method, characterized in that, The energy efficiency control method, applied to display devices, includes: Obtain the percentage of each brightness range in the energy efficiency test video source played by the display device, and construct a brightness distribution based on the percentage of the range; The total power limit is determined according to the energy efficiency level of the display device, and the target brightening area and the fixed power corresponding to the target brightening area are determined according to the preset basic brightness threshold. The adjustable power is determined based on the total power limit and the fixed power; Based on the brightness distribution, the adjustable power is allocated to the remaining screen areas except for the target brightening area to generate the energy efficiency control parameters of the display device.

2. The energy efficiency control method as described in claim 1, characterized in that, The step of obtaining the percentage of each brightness range in the energy efficiency test video source played by the display device, and constructing the brightness distribution based on the percentage of the range, includes: The brightness data in the energy efficiency test source chip is acquired in full time sequence to obtain brightness time sequence data; The brightness timing data is divided into multiple preset brightness levels, and the number of frames under each preset brightness level is counted. Calculate the proportion of each frame count to the total frame count to obtain the frame percentage of each preset brightness level. A mapping relationship is established between each preset brightness level and the screen proportion of the interval to obtain the brightness distribution.

3. The energy efficiency control method as described in claim 1, characterized in that, The step of determining the total power limit based on the energy efficiency level of the display device includes: The energy efficiency rating of the display device is obtained, wherein the energy efficiency rating is determined by the product definition of the display device; Based on the energy efficiency level, the corresponding upper limit value of power is queried from the preset energy efficiency power mapping table; The power upper limit value is determined as the total power limit value.

4. The energy efficiency control method as described in claim 1, characterized in that, The step of determining the target brightening area and the fixed power corresponding to the target brightening area based on a preset basic brightness threshold includes: Identify the image area in the energy efficiency test source where the brightness is less than the preset basic brightness threshold, and mark the image area as the target brightening area; Calculate the backlight driving power required to make the target brightened area reach the preset basic brightness threshold, and use the backlight driving power as the fixed power.

5. The energy efficiency control method as described in claim 1, characterized in that, The step of allocating the adjustable power to the remaining screen areas other than the target brightening area based on the brightness distribution to generate the energy efficiency control parameters of the display device includes: The weight of each brightness interval in the adjustable power is determined based on the screen proportion of each brightness interval in the brightness distribution. According to the allocation weight, the adjustable power is allocated interval by interval to the corresponding brightness intervals in the remaining screen areas; The energy efficiency control parameters are generated by integrating the power values ​​allocated to each brightness range and the fixed power.

6. The energy efficiency control method as described in claim 5, characterized in that, The step of determining the weight of each brightness interval in the adjustable power based on the screen proportion of each brightness interval in the brightness distribution includes: Obtain the brightness level value corresponding to each brightness range; The screen proportion of each brightness range is multiplied by the brightness level value corresponding to each brightness range to obtain each weighted value; The weighted values ​​are normalized, and the normalized weighted values ​​are used as the allocation weights of the brightness ranges in the adjustable power.

7. The energy efficiency control method as described in claim 1, characterized in that, After the step of allocating the adjustable power to the remaining screen area excluding the target brightening area based on the brightness distribution to generate the energy efficiency control parameters of the display device, the method further includes: When the display device plays video, the brightness distribution characteristics of the currently playing screen are detected in real time; Based on the brightness distribution characteristics, the corresponding brightness level is matched from the energy efficiency control parameters, and the backlight driving power value corresponding to the brightness level is read. The actual backlight power of the display device is adjusted by the backlight drive power value.

8. A display device, characterized in that, The display device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the energy efficiency control method as described in any one of claims 1 to 7.

9. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the energy efficiency control method as described in any one of claims 1 to 7.

10. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the steps of the energy efficiency control method as described in any one of claims 1 to 7.

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