Power supply control method and device for display device, display device and storage medium

Abstract

The present invention discloses a power supply control method for a display device, wherein the display device includes a backlight display unit, a power supply unit, a power supply monitoring unit and a power supply interface unit; the method includes: obtaining monitoring information reported by the power supply monitoring unit, wherein the monitoring information includes the charging current of the power supply interface unit; when the monitoring information meets a preset first power adjustment condition, sending a first power adjustment instruction to the power supply unit, so that the power supply unit adjusts the backlight brightness of the backlight display unit according to the first power adjustment instruction; when the monitoring information meets a preset second power adjustment condition, sending a second power adjustment instruction to the power supply unit, so that the power supply unit adjusts the backlight brightness of the backlight display unit to the maximum according to the second power adjustment instruction, thereby being able to flexibly adjust the backlight brightness of the display device according to the charging status during the power supply process of an external device.

Description

Technical Field

[0001] The present disclosure relates to the technical field of display devices, for example, to a power supply control method and apparatus for a display device, a display device, and a storage medium. Background Art

[0002] With the development of power supply technology, mobile phones, computers and other devices that can serve as both power users and power suppliers are gradually emerging. However, as the working power of the USB Type-C interface continues to increase, the power of the power board in the device is also increasing, and its cost and heat dissipation requirements will become higher accordingly, but the USB Type-C interface does not need to operate at full capacity at all times. Most of the existing devices that are charged through the USB Type-C interface can be fully charged in 2 hours. Taking the 100W USB Type-C interface as an example, except for the charging time, the USB Type-C interface does not need to work at full capacity during most of the time when charging is not required. Therefore, the 100W power allocated to the USB Type-C interface by the device as the power supplier during this period will cause power waste. Summary of the invention

[0003] The present disclosure aims to provide a power supply control method for a display device, which can flexibly adjust the backlight brightness of the display device according to the charging state during the power supply process of an external device.

[0004] To achieve the above objectives, the present invention adopts the following technical solutions:

[0005] This article provides a power supply control method for a display device, wherein the display device includes a backlight display unit, a power supply unit, a power supply monitoring unit and a power supply interface unit;

[0006] The method comprises:

[0007] Acquire monitoring information reported by the power supply monitoring unit, wherein the monitoring information includes the charging current of the power supply interface unit;

[0008] When the monitoring information meets a preset first power adjustment condition, sending a first power adjustment instruction to the power supply unit, so that the power supply unit adjusts the backlight brightness of the backlight display unit according to the first power adjustment instruction;

[0009] When the monitoring information meets a preset second power adjustment condition, a second power adjustment instruction is sent to the power supply unit, so that the power supply unit adjusts the backlight brightness of the backlight display unit to the maximum according to the second power adjustment instruction.

[0010] The present disclosure also provides a power supply control device for a display device, wherein the display device includes a backlight display unit, a power supply unit, a power supply monitoring unit and a power supply interface unit.

[0011] The device comprises:

[0012] A monitoring information acquisition unit, used to acquire the monitoring information reported by the power supply monitoring unit, wherein the monitoring information includes the charging current of the power supply interface unit;

[0013] a first brightness adjustment unit, configured to send a first power adjustment instruction to the power supply unit when the monitoring information satisfies a preset first power adjustment condition, so that the power supply unit adjusts the backlight brightness of the backlight display unit according to the first power adjustment instruction;

[0014] The second brightness adjustment unit is used to send a second power adjustment instruction to the power supply unit when the monitoring information meets a preset second power adjustment condition, so that the power supply unit adjusts the backlight brightness of the backlight display unit to the maximum according to the second power adjustment instruction.

[0015] The present disclosure further provides a display device, including a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the steps of the power supply control method for the display device described in any one of the above items are implemented.

[0016] The present disclosure further provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the steps of the power supply control method for a display device described in any one of the above items are implemented.

[0017] A power supply control method for a display device disclosed in the present invention monitors the charging current when a power supply interface unit supplies power to an external device through a power supply monitoring unit, so as to adjust the backlight display brightness of a backlight display unit in the display device according to the charging current, thereby changing the backlight power, avoiding the problem of insufficient charging power due to excessive backlight power, or wasting power reserved for the power supply interface unit due to insufficient backlight power, thereby achieving power optimization under different charging loads. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic flow chart of a power supply control method for a display device according to an embodiment;

[0019] Figure 2 is a schematic structural diagram of a display device according to an embodiment;

[0020] Figure 3 This is a schematic structural diagram of a power supply control device for a display device according to an embodiment;

[0021] Figure 4 The present invention is a schematic block diagram of the structure of a display device according to an embodiment.

[0022] Figure 2 middle:

[0023] 1. Power supply display device; 101. Backlight display unit; 102. Power supply unit; 103. Backlight control unit; 104. Power supply monitoring unit; 105. Power supply interface unit; 111. Power transfer unit; 112. Power management unit.

[0024] The realization of the objectives, functional features and advantages of the present disclosure will be further described in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present disclosure more clear, the present disclosure is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not used to limit the present disclosure.

[0026] It will be understood by those skilled in the art that, unless expressly stated, the singular forms "a", "an", "above", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of features, integers, steps, operations, elements, modules, modules and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, modules, modules, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be an intermediate element. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein includes all or any module and all combinations of one or more associated listed items.

[0027] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as generally understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as herein.

[0028] Reference Figure 1 , is a flow chart of a power supply control method of a display device 1 disclosed in the present solution, wherein the display device 1 includes a backlight display unit 101, a power supply unit 102, a power supply monitoring unit 104 and a power supply interface unit 105, and the method includes:

[0029] S1: Acquire monitoring information reported by the power supply monitoring unit, wherein the monitoring information includes the charging current of the power supply interface unit;

[0030] S2: When the monitoring information meets a preset first power adjustment condition, a first power adjustment instruction is sent to the power supply unit, so that the power supply unit adjusts the backlight brightness of the backlight display unit according to the first power adjustment instruction;

[0031] S3: When the monitoring information meets the preset second power adjustment condition, a second power adjustment instruction is sent to the power supply unit, so that the power supply unit adjusts the backlight brightness of the backlight display unit to the maximum according to the second power adjustment instruction.

[0032] In one embodiment, a power supply control method of a display device 1 disclosed in this solution is applied to a display device 1 that can be powered. Figure 2 , is a schematic diagram of the structure of a power-supply display device 1, comprising a backlight display unit 101, a power supply unit 102, a backlight control unit 103, a power supply monitoring unit 104 and a power supply interface unit 105; the backlight control unit 103 is connected to the backlight display unit 101 through the power supply unit 102, and the power supply unit 102 is connected to the power supply interface unit 105 through the power supply monitoring unit 104; the power supply interface unit 105 is used to connect to an external device and charge the external device through the power supply unit 102; the power supply monitoring unit 104 is used to monitor the charging current between the power supply interface unit 105 and the power supply unit 102, generate monitoring information according to the charging current and report it to the backlight control unit 103; the backlight control unit 103 is used to execute the power supply control method of the above-mentioned display device 1.

[0033] As mentioned above, the power-supply display device 1 can be a smart interactive tablet with a power supply function. The above-mentioned smart interactive smart tablet can be used in the fields of multi-person learning, multi-person meetings, etc. It can power other external devices required for learning or meetings during use. In addition to providing sufficient power for external devices, it can also avoid the problem of power usage hazards caused by multiple sockets relaying power supply in scenarios where there are fewer or farther sockets or charging ports.

[0034] As mentioned above, the external device can be a computer, a mobile phone, other interactive tablets and other devices having a power supply interface unit 105 that matches the above-mentioned power supply interface unit 105. In order to facilitate collaborative work and other scenarios to avoid problems such as one of the devices running out of power leading to a decrease in collaborative progress, this embodiment proposes an interactive tablet that can power external devices, which is provided with a backlight display unit 101 for normal screen display, a power supply unit 102 for power storage and having charging and power transmission functions, a backlight control unit 103 for controlling the backlight brightness, a power supply monitoring unit 104 for monitoring current and voltage, and a power supply interface unit 105 for powering the external device, thereby completing the power supply.

[0035] As mentioned above, the power supply monitoring unit 104 includes a power transfer unit 111 and a power management unit 112; the power transfer unit 111 is used to monitor the charging current and send an adjustment instruction to the power management unit 112 so that the power management unit 112 adjusts the size of the charging current. The power transfer unit 111 may include a PDIC (Power Delivery Integrated Circuit), which is used to monitor the charging current and charging voltage during the power supply process. In this embodiment, the charging current is selected as the basis for judgment. Among them, the power management unit 112 may include a PMIC (Power Management Integrated Circuit), whose function is to perform interactive tablet power management and other tasks. The PMIC usually uses linear charging to supply power and adjusts the charging current according to the adjustment instructions of the PDIC. In a specific embodiment, if the user is in a bright scene such as outdoors, the user may manually adjust the backlight brightness because he cannot see the screen display content clearly. At this time, in order to respond to the user's adjustment command, the backlight brightness of the backlight display unit 101 needs to be increased. At this time, the PDIC receives the adjustment signal generated by the power supply control unit according to the backlight brightness, and sends an adjustment command to the PMIC, so that the PMIC controls the charging current, thereby providing sufficient backlight power for the backlight display unit 101 to meet the user's brightness adjustment needs.

[0036] As described in step S1 above, since the charging current of different external devices may change with different battery life and battery parameters, and when the external device is a device that can intelligently optimize the charging current, its charging current in different time periods will also change. Exemplarily, when the power of the external device is 20% to 90%, it will enter a fast charging state and increase the current. At this time, the charging current of the power supply interface unit 105 in the display device 1 will also increase. When the external device recognizes that it is about to be fully charged, that is, the power is above 90%, it will reduce the current to protect the battery, so the charging current of the power supply interface unit 105 will also decrease. Therefore, this embodiment determines the remaining power and charging status of the external device by obtaining the charging current in the monitoring information reported by the power supply monitoring unit 104.

[0037] As described in step S2 above, generally speaking, in an ideal scenario, when the charging current is not 0, it can be determined that the display device 1 is in a state of supplying power to an external device. However, in a specific implementation process, it is often difficult to achieve an ideal state. Therefore, in this embodiment, the first power adjustment condition is set to be greater than a certain current threshold, that is, when the charging current is greater than the current threshold, it is considered that the display device 1 is in a state of supplying power to an external device. Specifically, the current threshold may be 10 mA. In the power supply state, when the charging current changes, the power allocated to the power supply interface unit 105 will also change accordingly. If the charging power reserved for the power supply interface unit 105 is a fixed value, then when the required charging current is small, the reserved power will be wasted, and other functions of the display device 1 will not be able to work at full power, reducing the performance of the display device 1. Since the greater the backlight brightness, the greater the backlight power, therefore, when the display device 1 is in the power supply state, according to the size of the charging current, the power supply unit is controlled to increase or decrease the backlight brightness, thereby ensuring that the power of the power supply interface unit 105 meets expectations during the power supply process, so that the charging power and the backlight power reach a dynamic balance.

[0038] As described in step S3 above, in an ideal scenario, when the charging current is equal to 0, it can be determined that the display device 1 is not in a state of supplying power to an external device. However, in the specific implementation process, it is often difficult to achieve the above ideal state. Therefore, in this embodiment, the second power adjustment condition is set to not greater than a certain current threshold, that is, when the charging current is not greater than the current threshold, it is considered that the display device 1 is not in a state of supplying power to an external device. In this embodiment, the current threshold device is set to 10mA, that is, when the charging current is not greater than 10mA, it is considered that the display device 1 is not in a power supply state. When the display device 1 is not in a power supply state, it means that the power required by the power supply interface unit 105 at this time can be regarded as 0. At this time, the display device 1 can fully allocate the output power to the backlight display unit 101, so the backlight brightness of the backlight display unit is adjusted to the maximum at this time.

[0039] In summary, the charging current when the power supply interface unit supplies power to the external device is monitored by the power supply monitoring unit, so as to adjust the backlight display brightness of the backlight display unit in the display device 1 according to the charging current, thereby changing the backlight power, avoiding the problem of insufficient charging power due to excessive backlight power, or waste of power reserved for the power supply interface unit due to too small backlight power, thereby realizing power optimization under different charging loads.

[0040] In one embodiment, sending a first power adjustment instruction to the power supply unit so that the power supply unit adjusts the backlight brightness of the backlight display unit according to the first power adjustment instruction includes:

[0041] When the charging current meets a preset first threshold range, the first power adjustment instruction is set as a power maximization instruction, and the power maximization instruction is sent to the power supply unit, so that the power supply unit adjusts the backlight brightness of the backlight display unit to the maximum according to the power maximization instruction;

[0042] When the charging current meets a preset second threshold range, setting the first power adjustment instruction as a power increase instruction, and sending the power increase instruction to the power supply unit, so that the power supply unit increases the backlight brightness of the backlight display unit according to the power increase instruction, wherein the second threshold range is greater than the first threshold range;

[0043] When the charging current satisfies a preset third threshold range, the first power adjustment instruction is set to a power reduction instruction, and the power reduction instruction is sent to the power supply unit so that the power supply unit reduces the backlight brightness of the backlight display unit according to the power reduction instruction, wherein the third threshold range is greater than the second threshold range.

[0044] As described above, in the actual charging process of the external device, the greater the remaining power, the smaller the charging current is according to the segmented charging method. In actual applications, when the remaining power of the external device is greater than a certain threshold, since its charging current is small, it is approximately regarded as 0 at this time. That is, when the charging current meets the preset first threshold range, it can be considered that the power to the external device can be ignored, and the backlight power of the display device 1 can be displayed at the maximum power. The second threshold range is larger than the first threshold range, that is, the minimum value in the second threshold range is not less than the maximum value in the first threshold range. When the charging current meets the second threshold range, it is determined that the charging current is small, that is, the required interface power is small, and more power can be allocated to the backlight display to avoid power waste; the third threshold range is larger than the second threshold range, that is, the minimum value in the third threshold range is not less than the maximum value in the second threshold range. When the charging current meets the third threshold range, it is determined that the charging current is large, that is, the required interface power is large, and the backlight power needs to be reduced to avoid insufficient interface power and reduce charging efficiency; in a specific implementation, the first threshold range can be [0, 0.1A], and the second threshold range can be (0.1A, 0.5A], at this time the third threshold range can be greater than 0.5A.

[0045] In one embodiment, sending the power increase instruction to the power supply unit so that the power supply unit increases the backlight brightness of the backlight display unit according to the power increase instruction includes:

[0046] The power increase instruction is sent to the power supply unit at a preset first frequency, so that the power supply unit sequentially increases the backlight brightness of the backlight display unit according to the power increase instruction.

[0047] As described above, when the charging current meets the second threshold range, that is, the current charging current is small and the power of the external device is large, the power required by the power supply interface unit 105 is small. Therefore, the backlight control unit 103 can send a power increase instruction according to the preset first frequency. When the power supply unit 102 receives a power increase instruction, it performs a brightness adjustment to increase the backlight brightness of the backlight display unit 101, so that the backlight brightness increases according to a gradient, avoiding the situation where the brightness suddenly increases when the user is using the display device 1.

[0048] As mentioned above, the first frequency may be once per second.

[0049] In one embodiment, sending the power reduction instruction to the power supply unit so that the power supply unit reduces the backlight brightness of the backlight display unit according to the power reduction instruction includes:

[0050] The power reduction instruction is sent to the power supply unit at a preset second frequency, so that the power supply unit sequentially reduces the backlight brightness of the backlight display unit according to the power reduction instruction.

[0051] As described above, when the charging current meets the third threshold range, it means that the current charging current is large, the power of the external device is small, and the power required by the power supply interface unit 105 is large. Therefore, the backlight control unit 103 can send a power reduction instruction according to the preset second frequency. When the power supply unit 102 receives a power reduction instruction, it performs a brightness adjustment to reduce the backlight brightness of the backlight display unit 101, so that the backlight brightness is reduced according to a gradient, avoiding a sudden drop in brightness when the user is using the display device 1.

[0052] As described above, the second frequency may be the same as the first frequency, or may be set to be different.

[0053] In a specific embodiment, the number of times the above-mentioned power increase instruction and power reduction instruction are sent can be set according to the current brightness value and the product parameters of the backlight display unit 101. For example, if the highest brightness in the product parameters of the backlight display unit 101 is 700nit, then it may drop to 350nit when the brightness is reduced. At this time, the adjustment difference is 350nit, that is, 50%. At this time, the adjustment gradient of the power reduction instruction can be set to 5%, and the number of times of sending can be set to 10 times. If the highest brightness of the product itself is 400nit, then it may only drop to 300nit when the brightness is reduced. At this time, the adjustment difference is 100nit, that is, 20%. At this time, the adjustment gradient of the power reduction instruction can be set to 4%, and the number of times of sending can be set to 5 times. The adjustment method of the power increase instruction is similar to that of the power reduction instruction, which will not be repeated here.

[0054] In one embodiment, sending a second power adjustment instruction to the power supply unit so that the power supply unit adjusts the backlight brightness of the backlight display unit to a maximum according to the second power adjustment instruction includes:

[0055] The second power adjustment instruction is sent to the power supply unit at a preset third frequency, so that the power supply unit sequentially increases the backlight brightness of the backlight display unit according to the second power adjustment instruction until the backlight brightness reaches a preset brightness threshold.

[0056] As described above, when the external device has completed charging, the backlight power of the display device 1 can be backlit at the maximum power. The number of times the second power adjustment instruction is sent can also be set according to the current brightness value and the product parameters of the backlight display unit 101. For example, if the highest brightness in the product parameters of the backlight display unit 101 is 700nit, and the current brightness is 560nit, the adjustment difference is 140nit, that is, 20%. At this time, the adjustment gradient of the power reduction instruction can be set to 4%, and the number of times it is sent can be set to 5 times, so as to avoid the sudden increase in the brightness of the backlight display unit 101 from causing visual impact on the user, wherein the third frequency can be the same as the first frequency or the second frequency, or it can be set to be different from the first frequency and the second frequency.

[0057] In one embodiment, the backlight brightness adjustment method of the power supply unit 102 includes: according to the power reduction instruction, the backlight brightness of the backlight display unit is reduced in sequence according to a preset gradient value (for example, 0.5%).

[0058] As described above, in order to further improve the smoothness of backlight brightness adjustment, the adjustment gradient value of the power reduction instruction can be set to 0.5% in this embodiment. Specifically, the current backlight brightness l of the backlight display unit can be read first. n At this time, after the power supply unit receives a power reduction instruction, it adjusts the backlight brightness to l n , and l n+1 = l n (1-0.5%), after receiving the power reduction instruction next time, adjust the backlight brightness to l n+2 , and l n+2 = l n+1 (1-0.5%), after receiving the power reduction instruction next time, it will decrease in sequence according to the above algorithm, so as to complete the reduction of the backlight brightness in sequence according to the gradient value of 0.5%. In a specific implementation, since the backlight brightness cannot be reduced infinitely, it needs to be determined according to the actual brightness value and the actual scene. The more the acceptable reduction ratio is, the greater the effective power utilization. When the total power of the backlight power is 180W, if the backlight brightness is reduced to 70% of the maximum brightness, the effective power utilization is 180*(1-0.3)=54W.

[0059] In one embodiment, the display device 1 supplies power to the external device in a manner including: supplying power to the external device via a preset Type-C interface.

[0060] As mentioned above, using the Type-C interface as the power supply interface unit 105 can reduce the thickness of the interface to only 8.3*2.5mm, which is more suitable for use in miniaturized electronic devices; and the Type-C interface adopts the USB3.1 standard, which can provide up to 100W of power output, and can achieve bidirectional power supply through the USB Typc-C interface, that is, it can not only charge the device itself, but also power external devices, which can effectively improve the interface utilization efficiency and versatility.

[0061] In summary, the power supply control method of the display device 1 provided in the embodiment of the present disclosure monitors the charging current of the external device to adjust the backlight display brightness according to the charging current, thereby changing the backlight power, avoiding the problem of insufficient charging power due to excessive backlight power, or wasting power reserved for the power supply interface due to too small backlight power, and realizing power optimization under different charging loads; when the external device completes charging, the backlight power of the display device 1 is controlled to perform backlight display according to the maximum power; the backlight control unit 103 sends a power increase instruction according to a preset first frequency, and when the power supply unit 102 receives a power increase instruction, it performs a brightness adjustment to increase the backlight brightness of the backlight display unit 101, so that the backlight brightness is gradually increased according to a gradient, avoiding the situation that the brightness suddenly increases when the user uses the display device 1; the backlight control unit 103 sends a power reduction instruction according to a preset second frequency, and when the power supply unit 102 receives a power reduction instruction, it performs a brightness adjustment to reduce the backlight brightness of the backlight display unit 101, so that the backlight brightness is gradually reduced according to a gradient, avoiding the situation that the brightness suddenly decreases when the user uses the display device 1.

[0062] Reference Figure 3 , is a structural block diagram of a power supply control system of a display device 1 disclosed in this solution, the system includes:

[0063] A monitoring information acquisition unit 100, configured to acquire monitoring information reported by the power supply monitoring unit, wherein the monitoring information includes the charging current of the power supply interface unit;

[0064] A first brightness adjustment unit 200, configured to send a first power adjustment instruction to the power supply unit when the monitoring information satisfies a preset first power adjustment condition, so that the power supply unit adjusts the backlight brightness of the backlight display unit according to the first power adjustment instruction;

[0065] The second brightness adjustment unit 300 is used to send a second power adjustment instruction to the power supply unit when the monitoring information meets a preset second power adjustment condition, so that the power supply unit adjusts the backlight brightness of the backlight display unit to the maximum according to the second power adjustment instruction.

[0066] In one embodiment, the first brightness adjustment unit 200 is further configured to:

[0067] When the charging current meets a preset first threshold range, the first power adjustment instruction is set as a power maximization instruction, and the power maximization instruction is sent to the power supply unit, so that the power supply unit adjusts the backlight brightness of the backlight display unit to the maximum according to the power maximization instruction;

[0068] When the charging current meets a preset second threshold range, setting the first power adjustment instruction as a power increase instruction, and sending the power increase instruction to the power supply unit, so that the power supply unit increases the backlight brightness of the backlight display unit according to the power increase instruction, wherein the second threshold range is greater than the first threshold range;

[0069] When the charging current satisfies a preset second threshold range, the first power adjustment instruction is set to a power reduction instruction, and the power reduction instruction is sent to the power supply unit so that the power supply unit reduces the backlight brightness of the backlight display unit according to the power reduction instruction, wherein the third threshold range is greater than the second threshold range.

[0070] In one embodiment, the first brightness adjustment unit 200 is further configured to:

[0071] The power increase instruction is sent to the power supply unit at a preset first frequency, so that the power supply unit sequentially increases the backlight brightness of the backlight display unit according to the power increase instruction.

[0072] In one embodiment, the first brightness adjustment unit 200 is further configured to:

[0073] The power reduction instruction is sent to the power supply unit at a preset second frequency, so that the power supply unit sequentially reduces the backlight brightness of the backlight display unit according to the power reduction instruction.

[0074] In one embodiment, the second brightness adjustment unit 300 is further configured to:

[0075] The second power adjustment instruction is sent to the power supply unit, so that the power supply unit sequentially increases the backlight brightness of the backlight display unit according to the second power adjustment instruction until the backlight brightness reaches a preset brightness threshold.

[0076] In one embodiment, a power supply unit 400 is further included, which is used to reduce the backlight brightness of the backlight display unit in sequence according to the power reduction instruction at a gradient value of 0.5%.

[0077] In one embodiment, the display device supplies power to the external device in a manner including: supplying power to the external device via a preset Type-C interface.

[0078] Reference Figure 4 In an embodiment of the present disclosure, a display device is also provided. The internal structure of the display device can be as follows: Figure 4 As shown. The display device includes a processor, a memory, a network interface and a database connected through a system bus. Among them, the processor designed for the display device is used to provide computing and control capabilities. The memory of the display device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the display device is used to store power supply control data of the display device, etc. The network interface of the display device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a power supply control method for a display device is implemented.

[0079] Those skilled in the art will understand that Figure 4 The structure shown in is merely a block diagram of a portion of the structure related to the disclosed solution, and does not constitute a limitation on the display device to which the disclosed solution is applied.

[0080] An embodiment of the present disclosure further provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, a power supply control method for a display device is implemented. It can be understood that the computer-readable storage medium in this embodiment can be a volatile readable storage medium or a non-volatile readable storage medium.

[0081] In summary, the power supply control method, system, device and storage medium of the display device provided in the embodiments of the present disclosure monitor the charging current when the power supply interface unit 105 supplies power to the external device through the power supply monitoring unit 104, so as to adjust the backlight display brightness of the backlight display unit 101 in the display device according to the charging current, thereby changing the backlight power, avoiding the problem of insufficient charging power due to excessive backlight power, or wasting power reserved for the power supply interface unit 105 due to too small backlight power, and realizing power optimization under different charging loads; when the external device completes charging, the backlight power of the display device 1 is controlled to perform backlight display according to the maximum power; and the backlight control unit 103 is used to adjust the backlight display brightness of the backlight display unit 101 in the display device according to the charging current. A power increase instruction is sent according to a preset first frequency. When the power supply unit 102 receives a power increase instruction, a brightness adjustment is performed to increase the backlight brightness of the backlight display unit 101, so that the backlight brightness is gradually increased according to a gradient, thereby avoiding a sudden increase in brightness when the user is using the display device 1; a power reduction instruction is sent according to a preset second frequency by the backlight control unit 103. When the power supply unit 102 receives a power reduction instruction, a brightness adjustment is performed to reduce the backlight brightness of the backlight display unit 101, so that the backlight brightness is gradually reduced according to a gradient, thereby avoiding a sudden decrease in brightness when the user is using the display device 1.

[0082] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing related hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media provided by the present disclosure and used in the embodiments may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (SSRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0083] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, device, article or method including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, device, article or method. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the presence of other identical elements in the process, device, article or method including the element.

[0084] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A power supply control method for a display device, wherein: The display device includes a backlight display unit, a power supply unit, a power supply monitoring unit and a power supply interface unit; The method comprises: Acquire monitoring information reported by the power supply monitoring unit, wherein the monitoring information includes the charging current of the power supply interface unit; When the monitoring information meets a preset first power adjustment condition, sending a first power adjustment instruction to the power supply unit, so that the power supply unit adjusts the backlight brightness of the backlight display unit according to the first power adjustment instruction; When the monitoring information meets a preset second power adjustment condition, sending a second power adjustment instruction to the power supply unit, so that the power supply unit adjusts the backlight brightness of the backlight display unit to the maximum according to the second power adjustment instruction; When the monitoring information satisfies a preset first power adjustment condition, sending a first power adjustment instruction to the power supply unit so that the power supply unit adjusts the backlight brightness of the backlight display unit according to the first power adjustment instruction, comprising: When the charging current meets a preset first threshold range, the first power adjustment instruction is set as a power maximization instruction, and the power maximization instruction is sent to the power supply unit, so that the power supply unit adjusts the backlight brightness of the backlight display unit to the maximum according to the power maximization instruction; When the charging current meets a preset second threshold range, setting the first power adjustment instruction as a power increase instruction, and sending the power increase instruction to the power supply unit, so that the power supply unit increases the backlight brightness of the backlight display unit according to the power increase instruction, wherein the second threshold range is greater than the first threshold range; When the charging current satisfies a preset third threshold range, the first power adjustment instruction is set to a power reduction instruction, and the power reduction instruction is sent to the power supply unit so that the power supply unit reduces the backlight brightness of the backlight display unit according to the power reduction instruction, wherein the third threshold range is greater than the second threshold range.

2. The power supply control method of the display device according to claim 1, wherein: The sending the power increase instruction to the power supply unit so that the power supply unit increases the backlight brightness of the backlight display unit according to the power increase instruction comprises: The power increase instruction is sent to the power supply unit at a preset first frequency, so that the power supply unit sequentially increases the backlight brightness of the backlight display unit according to the power increase instruction.

3. The power supply control method of a display device according to claim 1, wherein: The sending the power reduction instruction to the power supply unit so that the power supply unit reduces the backlight brightness of the backlight display unit according to the power reduction instruction comprises: The power reduction instruction is sent to the power supply unit at a preset second frequency, so that the power supply unit sequentially reduces the backlight brightness of the backlight display unit according to the power reduction instruction.

4. The power supply control method for a display device according to any one of claims 1 to 3, wherein: When the monitoring information satisfies a preset second power adjustment condition, sending a second power adjustment instruction to the power supply unit so that the power supply unit adjusts the backlight brightness of the backlight display unit to the maximum according to the second power adjustment instruction, comprising: The second power adjustment instruction is sent to the power supply unit at a preset third frequency, so that the power supply unit sequentially increases the backlight brightness of the backlight display unit according to the second power adjustment instruction until the backlight brightness reaches a preset brightness threshold.

5. The power supply control method of the display device according to claim 3, wherein: The backlight brightness adjustment method of the power supply unit includes: according to the power reduction instruction, the backlight brightness of the backlight display unit is reduced in sequence according to a preset gradient value.

6. The power supply control method for a display device according to any one of claims 1 to 3, wherein: The display device supplies power to the external device in a manner including: supplying power to the external device via a preset Type-C interface.

7. A power supply control device for a display device, wherein: The display device includes a backlight display unit, a power supply unit, a power supply monitoring unit and a power supply interface unit The device comprises: A monitoring information acquisition unit, used to acquire the monitoring information reported by the power supply monitoring unit, wherein the monitoring information includes the charging current of the power supply interface unit; a first brightness adjustment unit, configured to send a first power adjustment instruction to the power supply unit when the monitoring information satisfies a preset first power adjustment condition, so that the power supply unit adjusts the backlight brightness of the backlight display unit according to the first power adjustment instruction; The second brightness adjustment unit is used to send a second power adjustment instruction to the power supply unit when the monitoring information meets a preset second power adjustment condition, so that the power supply unit adjusts the backlight brightness of the backlight display unit to the maximum according to the second power adjustment instruction.

8. A display device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the power supply control method for the display device according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the power supply control method for a display device according to any one of claims 1 to 6 are implemented.

Images