Power adjustment method and device of display screen backlight module and display device

Abstract

The application provides a power adjusting method and device of a display screen backlight module and a display device. The method comprises the following steps: acquiring a plurality of power data, wherein the power data is obtained by driving the backlight module by using a first group of driving electric signals, and one power data corresponds to the number of light emitting elements in one lighting state; determining the rated power data of the backlight module from the plurality of power data; driving the target backlight module by using a second group of driving electric signals based on the rated power data, so that the target power data of the target backlight module is less than or equal to the rated power data, and the difference between the target power data and the rated power data is less than a preset difference value, and the target backlight module is of the same model as the backlight module. According to the scheme, the rated power data of each backlight module is determined respectively, and then the power is adjusted based on the determined rated power data, so that the power supply power is fully utilized.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically, to a power adjustment method, apparatus, computer-readable storage medium, and display device for a display screen backlight module. Background Technology

[0002] Current backlight module brightness adjustment schemes work by reducing the backlight module's power when its power exceeds the set rated power, thereby lowering the backlight module's power by reducing the drive current. Existing technologies typically preset a rated power based on experience and then limit the power; for example, the maximum power is manually set to 35% for the white window size based on experience.

[0003] When this setting triggers power protection, the white window size may not necessarily be 35%; it may need to be 40% or higher to trigger power protection, which could lead to insufficient utilization of power. Summary of the Invention

[0004] The main objective of this application is to provide a power adjustment method, apparatus, computer-readable storage medium, and display device for a display screen backlight module, so as to solve the problem of insufficient power utilization caused by the rated power setting method in the prior art.

[0005] To achieve the above objectives, according to one aspect of this application, a power adjustment method for a display backlight module is provided. The backlight module includes multiple light-emitting elements, comprising: acquiring multiple power data, wherein the power data is obtained by driving the backlight module using a first set of driving electrical signals, and each power data corresponds to a number of light-emitting elements in a lit state; determining rated power data of the backlight module from the multiple power data; and driving a target backlight module using a second set of driving electrical signals based on the rated power data, such that the target power data of the target backlight module is less than or equal to the rated power data, and the difference between the target backlight module and the rated power data is less than a preset difference, wherein the target backlight module has the same model as the backlight module.

[0006] Optionally, determining the rated power data of the backlight module from a plurality of power data includes: obtaining the ratio of power change to brightness change, wherein the power change is the difference between the power of the backlight module in the latter drive and the power of the backlight module in the former drive in two adjacent drives, and the brightness change is the difference between the brightness of the backlight module in the latter drive and the brightness of the backlight module in the former drive in two adjacent drives; and determining the rated power data of the backlight module from the plurality of power data based on the ratio.

[0007] Optionally, determining the rated power data of the backlight module from the plurality of power data based on the ratio includes: obtaining intermediate power data corresponding to the plurality of ratios in the neighborhood of zero; performing statistical distribution processing on the plurality of intermediate power data to obtain a statistical distribution result; and determining the statistical distribution result as the rated power data, wherein the statistical distribution result is at least one of the following: the average of the plurality of intermediate power data, the median of the plurality of intermediate power data, and the mode of the plurality of intermediate power data.

[0008] Optionally, determining the rated power data of the backlight module from multiple power data includes: acquiring the power change and the brightness change; and determining the rated power data of the backlight module based on the sign of the power change and the sign of the brightness change.

[0009] Optionally, the method further includes: obtaining a data threshold value, wherein the data threshold value is the number of light-emitting elements in the lit state corresponding to the rated power data.

[0010] Optionally, driving the target backlight module with a second set of driving electrical signals based on the rated power data, so that the target power data of the target backlight module is less than or equal to the rated power data, includes: driving the target backlight module with a maximum driving electrical signal when the number of light-emitting elements in the target backlight module in the lit state is less than or equal to the data threshold; and reducing the maximum driving electrical signal to obtain a reduced driving signal when the number of light-emitting elements in the target backlight module in the lit state is greater than the data threshold, and driving the target backlight module with the reduced driving signal.

[0011] Optionally, multiple power data are acquired, including: continuously driving the backlight module multiple times with the maximum driving electrical signal to acquire multiple power data, and the number of light-emitting elements in the lit state during the later drive in two adjacent drives is greater than the number of light-emitting elements in the lit state during the previous drive.

[0012] Optionally, driving the target backlight module with a second set of driving electrical signals based on the rated power data includes: driving the target backlight module line by line with the second set of driving electrical signals based on the rated power data.

[0013] Optionally, the light-emitting element is a direct-lit MiniLED.

[0014] According to another aspect of this application, a power adjustment device for a display backlight module is provided. The backlight module includes a plurality of light-emitting elements and comprises: a first acquisition unit for acquiring a plurality of power data, wherein the power data is obtained by driving the backlight module using a first set of driving electrical signals, and each power data corresponds to a number of light-emitting elements in a lit state; a determination unit for determining a rated power data of the backlight module from the plurality of power data; and a driving unit for driving a target backlight module using a second set of driving electrical signals based on the rated power data, such that the target power data of the target backlight module is less than or equal to the rated power data, and the difference between the target backlight module and the rated power data is less than a preset difference, wherein the target backlight module is of the same model as the backlight module.

[0015] According to another aspect of this application, a computer-readable storage medium is provided, the computer-readable storage medium including a stored program, wherein, when the program is executed, it controls the device on which the computer-readable storage medium is located to perform any of the methods described.

[0016] According to another aspect of this application, a display device is provided, comprising: a display screen and a processor, the display screen being electrically connected to the processor, the display screen including a backlight module including a plurality of light-emitting elements, and the processor being configured to execute any of the methods described herein.

[0017] By applying the technical solution of this application, multiple power data points are acquired, and the rated power data of the backlight module is determined from these power data points. Based on the rated power data, a second set of driving electrical signals is used to drive the target backlight module, so that the target power data of the target backlight module is less than or equal to the rated power data, and the difference between the target backlight module and the rated power data is less than a preset difference. This ensures that the target power data of the target backlight module is either equal to or close to the rated power data, thereby maximizing the power of the target backlight module and achieving full utilization of the power supply. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 A schematic diagram of a television set structure representing the hardware operating environment involved in an embodiment of the present invention is shown;

[0020] Figure 2 A flowchart illustrating a power adjustment method for a display backlight module according to an embodiment of this application is shown;

[0021] Figure 3 A flowchart illustrating a specific method for determining rated power data according to an embodiment of this application is shown;

[0022] Figure 4 A schematic diagram illustrating a more specific method for determining rated power data according to an embodiment of this application is shown;

[0023] Figure 5 The diagram illustrates the variation of current, power, and brightness with the area of ​​the white window in the prior art.

[0024] Figure 6 The variations in current, power, and brightness with the area of ​​the white window in the embodiments of this application are shown.

[0025] Figure 7 A schematic diagram illustrating a power adjustment device for a display backlight module according to an embodiment of this application is shown. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0029] It should be understood that when an element (such as a layer, film, region, or substrate) is described as being "on" another element, the element may be directly on the other element, or there may be an intermediate element present. Furthermore, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element, or "connected" to the other element via a third element.

[0030] Reference Figure 1 , Figure 1 This is a schematic diagram of the structure of a television set in the hardware operating environment involved in the embodiments of the present invention.

[0031] Typically, a television set includes: at least one processor 101, a memory 102, and a brightness adjustment program stored in the memory and executable on the processor, the brightness adjustment program being configured to implement the steps of the power adjustment method for the display backlight module as described above.

[0032] Processor 101 may include one or more processing cores, such as a quad-core processor or an octa-core processor. Processor 101 may be implemented using at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), or PLA (Programmable Logic Array). Processor 101 may also include a main processor and a coprocessor. The main processor, also known as a CPU (Central Processing Unit), is used to process data in the wake-up state; the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, processor 101 may integrate a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content to be displayed on the screen. Processor 101 may also include an AI (Artificial Intelligence) processor, which handles operations related to the power adjustment method of the display backlight module, enabling the power adjustment method model of the display backlight module to train and learn autonomously, improving efficiency and accuracy.

[0033] The memory 102 may include one or more computer-readable storage media, which may be non-transitory. The memory 102 may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In some embodiments, the non-transitory computer-readable storage media in the memory 102 are used to store at least one instruction, which is executed by the processor 101 to implement the power adjustment method for the display backlight module provided in the method embodiments of this application.

[0034] In some embodiments, the terminal may also optionally include a communication interface 103 and at least one peripheral device. The processor 101, memory 102, and communication interface 103 can be connected via a bus or signal line. Each peripheral device can be connected to the communication interface 103 via a bus, signal line, or circuit board. Specifically, the peripheral device includes at least one of a radio frequency circuit 104, a screen 105, and a power supply 106, and may also include a camera 107.

[0035] The communication interface 103 can be used to connect at least one I / O (Input / Output) related peripheral device to the processor 101 and the memory 102. In some embodiments, the processor 101, the memory 102, and the communication interface 103 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 101, the memory 102, and the communication interface 103 can be implemented on separate chips or circuit boards, which is not limited in this embodiment.

[0036] The radio frequency (RF) circuit 104 is used to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The RF circuit 104 communicates with communication networks and other communication devices via electromagnetic signals. The RF circuit 104 converts electrical signals into electromagnetic signals for transmission, or converts received electromagnetic signals back into electrical signals. Optionally, the RF circuit 104 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a user identity module card, etc. The RF circuit 104 can communicate with other terminals via at least one wireless communication protocol. This wireless communication protocol includes, but is not limited to: metropolitan area networks (MANs), various generations of mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks (WLANs), and / or WiFi (Wireless Fidelity) networks. In some embodiments, the RF circuit 104 may also include circuitry related to NFC (Near Field Communication), which is not limited in this application.

[0037] Screen 105 is used to display a UI (User Interface). This UI may include graphics, text, icons, videos, and any combination thereof. When screen 105 is a touch screen, it also has the ability to collect touch signals on or above its surface. These touch signals can be input as control signals to processor 101 for processing. In this case, screen 105 can also be used to provide virtual buttons and / or a virtual keyboard, also known as soft buttons and / or a soft keyboard.

[0038] In some embodiments, screen 105 can be a single screen, the front panel of an electronic device; in other embodiments, screen 105 can be at least two screens, respectively disposed on different surfaces of the electronic device or in a foldable design; in still other embodiments, screen 105 can be a flexible screen, disposed on a curved or folded surface of the electronic device. Furthermore, screen 105 can also be configured as a non-rectangular, irregular shape, i.e., a non-rectangular screen. Screen 105 can be made of materials such as LCD (Liquid Crystal Display).

[0039] Power source 106 is used to supply power to various components in an electronic device. Power source 106 can be alternating current, direct current, a disposable battery, or a rechargeable battery. When power source 106 includes a rechargeable battery, the rechargeable battery can support wired or wireless charging. The rechargeable battery can also be used to support fast charging technology. Those skilled in the art will understand that... Figure 1 The structure shown does not constitute a limitation on the television set and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0040] The camera 107 is used to help the television set to capture video and images. The camera 107 is usually integrated into a certain area on the front of the television set.

[0041] Of course, the display screen in this application can also be displayed on other electronic devices besides televisions.

[0042] According to an embodiment of the present invention, a power adjustment method for a display backlight module is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0043] Figure 2 This is a flowchart of a power adjustment method for a display backlight module according to an embodiment of this application. The backlight module includes multiple light-emitting elements, such as... Figure 2 As shown, the method includes the following steps:

[0044] Step S201: Acquire multiple power data, wherein the power data is obtained by driving the backlight module using a first set of driving electrical signals, and one power data corresponds to the number of light-emitting elements in a lit state.

[0045] Specifically, the number of the aforementioned light-emitting elements in a lit state corresponds to a white window area, and the larger the number of the aforementioned light-emitting elements in a lit state, the larger the white window area.

[0046] Step S202: Determine the rated power data of the backlight module from the multiple power data sets mentioned above;

[0047] Step S203: Based on the rated power data, the target backlight module is driven by the second set of driving electrical signals so that the target power data of the target backlight module is less than or equal to the rated power data, and the difference between the target backlight module and the rated power data is less than a preset difference. The target backlight module is the same model as the backlight module.

[0048] Specifically, the target power data of the target backlight module is less than the rated power data, and the difference between the target power data and the rated power data is less than a preset difference, so that the target power data is close to the rated power data and the difference between the target power data and the rated power data is controlled to be minimized, so as to ensure the maximum power of the target backlight module.

[0049] The power adjustment method for the display backlight module of this application acquires multiple power data points, determines the rated power data of the backlight module from these data points, and drives the target backlight module using a second set of driving electrical signals based on the rated power data. This ensures that the target power data of the target backlight module is less than or equal to the rated power data, and the difference between the target power data and the rated power data is less than a preset difference. This ensures that the target power data of the target backlight module is either equal to or close to the rated power data, thereby maximizing the power of the target backlight module and achieving full utilization of the power supply.

[0050] Further, in step S202, the rated power data of the backlight module is determined from the plurality of power data, including:

[0051] Step S2021: Obtain the ratio of power change to brightness change. The power change is the difference between the power of the backlight module in the second drive and the power of the backlight module in the previous drive in two adjacent drives. The brightness change is the difference between the brightness of the backlight module in the second drive and the brightness of the backlight module in the previous drive in two adjacent drives.

[0052] Step S2022: Determine the rated power data of the backlight module from the plurality of power data based on the above ratio.

[0053] Further, step S2022, determining the rated power data of the backlight module from the plurality of power data based on the above ratio, includes:

[0054] Obtain intermediate power data corresponding to multiple of the above ratios in the neighborhood of zero;

[0055] Specifically, a ratio in the neighborhood of zero proves that the power is within a stable range (with small fluctuations), and the rated power data can be selected from this range.

[0056] Statistical distribution processing was performed on multiple of the aforementioned intermediate power data to obtain the statistical distribution results;

[0057] The above statistical distribution results are determined as the above rated power data, and the above statistical distribution results are at least one of the following: the average of multiple above intermediate power data, the median of multiple above intermediate power data, and the mode of multiple above intermediate power data.

[0058] In other embodiments, the rated power data of the backlight module is determined from a plurality of the aforementioned power data, including:

[0059] Acquire the changes in power and brightness;

[0060] The rated power data of the backlight module is determined based on the sign of the power change and the sign of the brightness change.

[0061] like Figure 3 As shown, firstly, the current power P(i) and brightness L(i) are collected, and the previously collected power P(i-1) and brightness L(i-1) are read. Then, dP = P(i) - P(i-1) and dL = L(i) - L(i-1) are calculated. Then, it is determined whether dP > 0. If yes, it is determined whether dL > 0. If yes, the power is increased; otherwise, power protection is implemented. If dP ≤ 0, it is determined whether dL < 0. If yes, power protection is implemented; otherwise, the power is increased. When dP = dL = 0, the maximum brightness point is reached, and the power Pmax is recorded. When the power approaches Pmax and dL < 0, the brightness decreases, and the power remains relatively stable. At this point, as the white window area increases, the current is gradually reduced to ensure maximum output power and maximum brightness.

[0062] Corresponding to Figure 4 The explanation is: Figure 4The maximum power point is the white window area corresponding to the rated power data. When both dP and dL are positive, it indicates that the maximum power has not yet been reached. At this point, the power can be increased by increasing the drive signal, and the white window area can be further increased by moving to the right. Assuming the operating point moves from A to D, where dP and dL are both negative, the next movement direction should be to the right. Similarly, assuming the operating point moves from C to B, we find that dP is positive and dL is negative, so the next movement direction should be to the left. Assuming the operating point moves from B to C, we find that dP is negative and dL is positive, so the next movement direction should be to the left. Finally, the maximum power point is determined. After determining the maximum power point using the scheme of this application, the data is stored in memory. The next time the device is powered on, this data can be automatically read, and then automatically set according to the brightness and power range.

[0063] In some embodiments, the method further includes: obtaining a data threshold value, wherein the data threshold value is the number of light-emitting elements in the lit state corresponding to the rated power data.

[0064] Further, step S203, driving the target backlight module with a second set of driving electrical signals based on the aforementioned rated power data, so that the target power data of the target backlight module is less than or equal to the aforementioned rated power data, includes:

[0065] When the number of light-emitting elements in the target backlight module that are in the above-mentioned lit state is less than or equal to the above-mentioned data threshold, the target backlight module is driven by the maximum driving electrical signal to ensure full utilization of power.

[0066] If the number of light-emitting elements in the target backlight module that are in the lit state exceeds the data threshold, the maximum driving signal is reduced to obtain a reduced driving signal, and the target backlight module is driven using the reduced driving signal. Furthermore, during the driving process, the difference between the target power data and the rated power data of the target backlight module is ensured to be less than a preset difference, thereby ensuring full utilization of the power supply.

[0067] Of course, before the maximum power point, the screen brightness can be increased by continuously increasing the drive current. After the maximum power point, the drive current can be dynamically set according to the power range (the working current of the lamp points can be dynamically adjusted according to the area of ​​the white window) to ensure that the brightness is optimal without exceeding the power limit.

[0068] More specifically, acquire multiple power data points, including:

[0069] The backlight module is continuously driven multiple times using the maximum driving signal to acquire multiple power data points. Furthermore, the number of light-emitting elements in the lit state during the later drive is greater than the number of light-emitting elements in the lit state during the previous drive. That is, during the acquisition of rated power data, the backlight module can be driven with the maximum driving signal first to accurately determine the rated power data.

[0070] More specifically, based on the aforementioned rated power data, a second set of driving electrical signals is used to drive the target backlight module, including:

[0071] Based on the above rated power data, the target backlight module is driven line by line using the second set of driving electrical signals.

[0072] Because MiniLEDs are smaller than traditional LEDs, thousands of MiniLEDs can be arranged in high-end TVs, with the brightness of specific MiniLED areas controlled according to the brightness of the image. However, due to the limited power supply range (around 300W for a 65-inch MiniLED screen) and the operating current range of 60mA to 120mA, displaying a completely white window (i.e., all MiniLEDs are on) requires all LEDs to be at their brightest. This necessitates maximum current operation, potentially reaching 600W if all LEDs are lit. This significantly increases power supply costs and reduces the lifespan of the MiniLEDs. Therefore, the industry standard practice is as follows:

[0073] Increased power limit: When the load power exceeds the set rated power, the load power is reduced by decreasing the MiniLED drive current. For example... Figure 5 As shown: When the white window area reaches 35% of the screen, the power reaches 250W, so the maximum power is set to 250W. If the white window continues to expand, the power will exceed 250W, triggering power protection. Therefore, it is necessary to reduce the power by decreasing the LED current. Thus, as the window area increases, the LED drive current decreases, leading to a decrease in screen brightness. This approach has two main problems: 1) This solution artificially sets the maximum power based on an empirical value of 35% for the white window size, thus limiting the power. In reality, for different power supply sizes, the white window size percentage when power protection is triggered may not be 35%; it may need to reach 40% or higher, resulting in insufficient power utilization. 2) When power protection is triggered, the MiniLED current is manually set to reduce the power and ensure it does not exceed the protection value. However, the current reduction is typically in steps of 10mA or even larger, leading to excessive brightness fluctuations and insufficient energy utilization.

[0074] Figure 6 This application illustrates the variation of current, power, and brightness with the white window area. For backlight modules of the same specifications, the solution described in this application allows for maximum drive current signal operation until the white window area reaches 65%, thus fully utilizing the power supply. This enables precise adjustment of brightness and power, improving the overall screen brightness after power protection.

[0075] More specifically, the aforementioned light-emitting element is a direct-lit MiniLED. A direct-lit MiniLED can be installed in the backlight module of a television set. This solution, applied to direct-lit MiniLEDs, compared to existing methods with fixed current and fixed brightness, achieves full utilization of power supply while automatically tracking the maximum power point and dynamically adjusting the backlight brightness.

[0076] This application also provides a power adjustment device for a display backlight module. It should be noted that the power adjustment device for the display backlight module in this application can be used to execute the power adjustment method for the display backlight module provided in this application. The following describes the power adjustment device for the display backlight module provided in this application.

[0077] Figure 7 This is a schematic diagram of a power adjustment device for a display backlight module according to an embodiment of this application. The backlight module includes multiple light-emitting elements, such as... Figure 7 As shown, the device includes:

[0078] The first acquisition unit 71 is used to acquire multiple power data, wherein the power data is obtained by driving the backlight module using a first set of driving electrical signals, and one power data corresponds to the number of light-emitting elements in a lit state.

[0079] Specifically, the number of the aforementioned light-emitting elements in a lit state corresponds to a white window area, and the larger the number of the aforementioned light-emitting elements in a lit state, the larger the white window area.

[0080] The determining unit 72 is used to determine the rated power data of the backlight module from the plurality of power data mentioned above;

[0081] The driving unit 73 is used to drive the target backlight module with a second set of driving electrical signals based on the rated power data, so that the target power data of the target backlight module is less than or equal to the rated power data, and the difference between the target backlight module and the rated power data is less than a preset difference. The target backlight module is the same model as the backlight module.

[0082] The power adjustment device for a display backlight module of this application includes a first acquisition unit acquiring multiple power data points, a determining unit determining the rated power data of the backlight module from the multiple power data points, and a driving unit driving the target backlight module using a second set of driving electrical signals based on the rated power data. This ensures that the target power data of the target backlight module is less than or equal to the rated power data, and the difference between the target power data and the rated power data is less than a preset difference. This ensures that the target power data of the target backlight module is either equal to or close to the rated power data, thereby maximizing the power of the target backlight module and achieving full utilization of the power supply.

[0083] In some embodiments, the determining unit includes a first acquisition module and a first determining module. The first acquisition module is used to acquire the ratio of the power change amount to the brightness change amount. The power change amount is the difference between the power of the backlight module in the second drive and the power of the backlight module in the first drive in two adjacent drives. The brightness change amount is the difference between the brightness of the backlight module in the second drive and the brightness of the backlight module in the first drive in two adjacent drives. The first determining module is used to determine the rated power data of the backlight module from multiple power data based on the ratio.

[0084] To accurately determine the rated power data, the first determining module includes an acquisition submodule, a statistics submodule, and a determining submodule. The acquisition submodule acquires intermediate power data corresponding to multiple ratios within the zero neighborhood. The statistics submodule performs statistical distribution processing on the multiple intermediate power data to obtain a statistical distribution result. The determining submodule determines the statistical distribution result as the rated power data. The statistical distribution result is at least one of the following: the average of the multiple intermediate power data, the median of the multiple intermediate power data, or the mode of the multiple intermediate power data. Specifically, a ratio within the zero neighborhood indicates that the power is within a stable range (with small fluctuations), and rated power data can be selected from this range.

[0085] In other embodiments, the determining unit further includes a second acquisition module and a second determining module. The second acquisition module is used to acquire the power change and the brightness change. The second determining module is used to determine the rated power data of the backlight module based on the sign of the power change and the sign of the brightness change.

[0086] In some embodiments, the device further includes a second acquisition unit, which is used to acquire a data threshold value, wherein the data threshold value is the number of light-emitting elements in the lit state corresponding to the rated power data.

[0087] In some embodiments, the driving unit includes: a first driving module and a second driving module. The first driving module is used to drive the target backlight module with a maximum driving electrical signal when the number of light-emitting elements in the target backlight module in the lit state is less than or equal to the data threshold. The second driving module is used to reduce the maximum driving electrical signal to obtain a reduced driving signal when the number of light-emitting elements in the target backlight module in the lit state is greater than the data threshold, and then use the reduced driving signal to drive the target backlight module. This ensures full utilization of the power supply.

[0088] Furthermore, the first acquisition unit is also used to continuously drive the backlight module multiple times using the maximum driving electrical signal to acquire multiple power data, and the number of the light-emitting elements in the lit state during the latter drive is greater than the number of the light-emitting elements in the lit state during the former drive.

[0089] In some specific embodiments, the driving unit is also used to drive the target backlight module line by line using the second set of driving electrical signals based on the rated power data.

[0090] More specifically, the aforementioned light-emitting element is a direct-lit MiniLED. A direct-lit MiniLED can be installed in the backlight module of a television set. This solution, applied to direct-lit MiniLEDs, compared to existing methods with fixed current and fixed brightness, achieves full utilization of power supply while automatically tracking the maximum power point and dynamically adjusting the backlight brightness.

[0091] The power adjustment device for the aforementioned display backlight module includes a processor and a memory. The aforementioned first acquisition unit, determination unit, and driving unit are all stored in the memory as program units, and the processor executes the aforementioned program units stored in the memory to realize the corresponding functions.

[0092] The processor contains a core, which retrieves the corresponding program units from memory. One or more cores can be configured, and their parameters can be adjusted to fully utilize the power supply.

[0093] The memory may include non-permanent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0094] This invention provides a computer-readable storage medium including a stored program, wherein, when the program is executed, it controls the device containing the computer-readable storage medium to perform the power adjustment method of the display screen backlight module.

[0095] This invention provides a display device, including a display screen and a processor. The display screen is electrically connected to the processor. The display screen includes a backlight module, which includes a plurality of light-emitting elements. The processor is used to execute any of the methods described above.

[0096] This invention provides a processor for running a program, wherein the program executes a power adjustment method for the display screen backlight module.

[0097] This invention provides a device including a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, it performs at least the following steps:

[0098] Step S201: Acquire multiple power data, wherein the power data is obtained by driving the backlight module using a first set of driving electrical signals, and one power data corresponds to the number of light-emitting elements in a lit state.

[0099] Step S202: Determine the rated power data of the backlight module from the multiple power data sets mentioned above;

[0100] Step S203: Based on the rated power data, the target backlight module is driven by the second set of driving electrical signals so that the target power data of the target backlight module is less than or equal to the rated power data, and the difference between the target backlight module and the rated power data is less than a preset difference. The target backlight module is the same model as the backlight module.

[0101] The devices mentioned in this article can be servers, PCs, tablets, mobile phones, etc.

[0102] This application also provides a computer program product, which, when executed on a data processing device, is suitable for executing an initialization program having at least the following method steps:

[0103] Step S201: Acquire multiple power data, wherein the power data is obtained by driving the backlight module using a first set of driving electrical signals, and one power data corresponds to the number of light-emitting elements in a lit state.

[0104] Step S202: Determine the rated power data of the backlight module from the multiple power data sets mentioned above;

[0105] Step S203: Based on the rated power data, the target backlight module is driven by the second set of driving electrical signals so that the target power data of the target backlight module is less than or equal to the rated power data, and the difference between the target backlight module and the rated power data is less than a preset difference. The target backlight module is the same model as the backlight module.

[0106] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0107] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0108] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0109] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0110] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0111] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0112] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0113] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0114] As can be seen from the above description, the embodiments of this application achieve the following technical effects:

[0115] 1) The power adjustment method for the display backlight module of this application acquires multiple power data points, determines the rated power data of the backlight module from these power data points, and drives the target backlight module using a second set of driving electrical signals based on the rated power data. This ensures that the target power data of the target backlight module is less than or equal to the rated power data, and the difference between the target power data and the rated power data is less than a preset difference. This ensures that the target power data of the target backlight module is either equal to or close to the rated power data, thereby maximizing the power of the target backlight module and achieving full utilization of the power supply.

[0116] 2) The power adjustment device for the display backlight module of this application includes a first acquisition unit acquiring multiple power data points, a determining unit determining the rated power data of the backlight module from the multiple power data points, and a driving unit driving the target backlight module using a second set of driving electrical signals based on the rated power data, so that the target power data of the target backlight module is less than or equal to the rated power data, and the difference between the target power data and the rated power data is less than a preset difference. This ensures that the target power data of the target backlight module is either equal to or close to the rated power data, thereby maximizing the power of the target backlight module and achieving full utilization of the power supply.

[0117] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for adjusting power of a backlight module of a display screen, characterized in that, The backlight module comprises a plurality of light emitting elements, comprising: Obtaining a plurality of power data, wherein the power data is obtained by driving the backlight module with a first set of driving electrical signals, and one of the power data corresponds to the number of the light emitting elements in the lighting state; Obtaining the ratio of the power change amount and the brightness change amount, the power change amount being the difference between the power of the backlight module in the latter driving and the power of the backlight module in the former driving, and the brightness change amount being the difference between the brightness of the backlight module in the latter driving and the brightness of the backlight module in the former driving; obtaining the intermediate power data corresponding to a plurality of the ratios in the neighborhood of zero; performing statistical distribution processing on a plurality of the intermediate power data to obtain a statistical distribution result; determining the statistical distribution result as the rated power data, Or, obtaining the power change amount and the brightness change amount; in the case that the power change amount is greater than zero and the brightness change amount is positive, increasing the power; in the case that the power change amount is greater than zero and the brightness change amount is negative, performing power protection; in the case that the power change amount is less than or equal to zero and the brightness change amount is negative, performing power protection; in the case that the power change amount is less than or equal to zero and the brightness change amount is positive, increasing the power; in the case that the brightness change amount and the power change amount are both zero, determining the rated power data; Driving the target backlight module with a second set of driving electrical signals based on the rated power data, so that the target power data of the target backlight module is less than or equal to the rated power data, and the difference between the target power data and the rated power data is less than a preset difference, the target backlight module being of the same model as the backlight module.

2. The method of claim 1, wherein, Determining the rated power data of the backlight module from a plurality of the power data, comprising: Obtaining the power change amount and the brightness change amount; Determining the rated power data of the backlight module according to the positive and negative of the power change amount and the positive and negative of the brightness change amount.

3. The method of claim 1, wherein, The method further comprises: Obtaining a data critical value, the data critical value being the number of the light emitting elements in the lighting state corresponding to the rated power data.

4. The method of claim 3, wherein, Driving the target backlight module with a second set of driving electrical signals based on the rated power data, so that the target power data of the target backlight module is less than or equal to the rated power data, comprising: In the case that the number of the light emitting elements in the lighting state of the target backlight module is less than or equal to the data critical value, driving the target backlight module with the maximum driving electrical signal; In the case that the number of the light emitting elements in the lighting state of the target backlight module is greater than the data critical value, reducing the maximum driving electrical signal to obtain a reduced driving signal, and driving the target backlight module with the reduced driving signal.

5. The method according to any one of claims 1 to 4, characterized in that, Obtaining a plurality of power data, comprising: The backlight module is continuously driven multiple times by using a maximum driving electrical signal, multiple power data are obtained, and the number of light emitting elements in the lighting state in the latter driving among the adjacent two drivings is greater than the number of light emitting elements in the lighting state in the former driving.

6. The method according to any one of claims 1 to 4, characterized in that, Driving a target backlight module by using a second group of driving electrical signals based on the rated power data, including: Driving the target backlight module row by row by using the second group of driving electrical signals based on the rated power data.

7. The method according to any one of claims 1 to 4, characterized in that, The light emitting element is a direct type MiniLED.

8. A power regulating device for a backlight module of a display screen, characterized in that, The backlight module includes multiple light emitting elements, including: A first obtaining unit is configured to obtain multiple power data, wherein the power data is obtained by driving the backlight module by using a first group of driving electrical signals, and one power data corresponds to the number of light emitting elements in the lighting state; A determining unit is configured to obtain the ratio of the power change amount and the brightness change amount, the power change amount is the difference between the power of the backlight module in the latter driving and the power of the backlight module in the former driving among the adjacent two drivings, the brightness change amount is the difference between the brightness of the backlight module in the latter driving and the brightness of the backlight module in the former driving among the adjacent two drivings, multiple intermediate power data corresponding to the ratio in the neighborhood of zero are obtained, the multiple intermediate power data are statistically distributed to obtain a statistical distribution result, and the statistical distribution result is determined as the rated power data, or the power change amount and the brightness change amount are obtained, the power is increased in the case that the power change amount is greater than zero and the brightness change amount is positive, the power is protected in the case that the power change amount is greater than zero and the brightness change amount is negative, the power is protected in the case that the power change amount is less than or equal to zero and the brightness change amount is negative, the power is increased in the case that the power change amount is less than or equal to zero and the brightness change amount is positive, and the rated power data is determined when the brightness change amount and the power change amount are both zero. A driving unit is configured to drive a target backlight module by using a second group of driving electrical signals based on the rated power data, so that the target power data of the target backlight module is less than or equal to the rated power data, and the difference between the target power data and the rated power data is less than a preset difference, and the target backlight module has the same model as the backlight module.

9. A computer-readable storage medium, characterized in that, The computer readable storage medium includes a stored program, wherein the program controls the device where the computer readable storage medium is located to execute the method of any one of claims 1 to 7 when the program is running.

10. A display device, characterized by comprising: Including: A display screen and a processor, the display screen is electrically connected with the processor, the display screen includes a backlight module, the backlight module includes multiple light emitting elements, and the processor is configured to execute the method of any one of claims 1 to 7.

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