Power supply module control method and apparatus, and device and storage medium

Abstract

A power supply module control method and apparatus, and a device and a storage medium, which are used for reducing the display power consumption of a display apparatus. The power supply module control method mainly comprises the following steps: within a first preset duration during which it is determined that a display panel is in a blanking phase, controlling a first gamma current and a second gamma current to be reduced by a first threshold value, wherein a driving process of the display panel comprises the blanking phase and a display phase, and the display panel does not receive any data signal in the blanking phase; and within a second preset duration before the display panel enters the display phase, controlling the first gamma current and the second gamma current to be increased by the first threshold value. By using the design, a gamma current, which is output to a display driving module, can be controlled to be reduced in a blanking phase prior to a display phase, i.e., a phase in which data is invalid, thereby reducing the power consumption of a display apparatus in the phase in which data is invalid. Since the gamma current is controlled to return to normal before a display panel enters the display phase, the display panel can operate normally in the display phase in which data is valid.

Description

A control method, device and apparatus of a power module, and a storage medium

[0001] Cross-reference to Related Applications

[0002] The present application claims priority to the Chinese patent application No. 202410447113.X, filed on April 12, 2024, and entitled "A control method, device and apparatus of a power module, and a storage medium", the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of display, and in particular to a control method, device and apparatus of a power module, and a storage medium. BACKGROUND

[0004] Display technology, as an important component of information industry, has played a very important role in the development of information technology. A display device mainly includes a display panel, a power module and a display driving module. The display driving module can drive the display of the display panel. The power module can control the power voltage output by the display driving module to the display panel according to the display requirement of the display panel, and then adjust the display effect of the display panel. The display driving module can drive the display panel to display according to the gamma value output by the power module. Therefore, the size of the gamma value will not only affect the normal work of the display device, but also directly affect the power consumption of the display device. The driving process of the display panel mainly includes a blanking stage and a display stage. How to reduce the power consumption in the driving process of the display panel has become one of the important concerns in the industry. SUMMARY

[0005] The present application provides a control method, device and apparatus of a power module, and a storage medium, which are used to reduce the display power consumption of a display device and ensure the normal work of the display device.

[0006] In a first aspect, the embodiments of the present application provide a control method of a power module, which is applied to a display device and used to adjust a gamma value output by the power module to a display driving module. The control method mainly comprises the following steps: controlling a first gamma current and a second gamma current to decrease by a first threshold value within a first preset time length when it is determined that a display panel enters an idle stage; the driving process of the display panel comprises the idle stage and a display stage, and the display panel does not receive a data signal in the idle stage; controlling the first gamma current and the second gamma current to increase by the first threshold value within a second preset time length before the display panel enters the display stage. With the above design, the gamma current output to the display driving module can be controlled to decrease in the idle stage before the display stage, i.e., in the data invalid stage, so as to reduce the power consumption of the display device in the data invalid stage. Since the gamma current is controlled to return to normal before the display stage, the display panel can work normally in the data valid display stage.

[0007] In a possible implementation, the controlling the first gamma current and the second gamma current to decrease comprises: controlling the first gamma current to decrease by the first threshold value to obtain a first current threshold value, and controlling the second gamma current to decrease by the first threshold value to obtain a second current threshold value, and the absolute values of the first current threshold value and the second current threshold value are greater than zero. With the above design, since the value of the gamma current is greater than zero in the process of controlling the gamma current to decrease in the data invalid area to reduce the loss, the output of the gamma current is maintained, which can effectively avoid the problems of slow start time and large start loss caused by the restart current in the display stage.

[0008] In a possible implementation, the first preset time length and the second preset time length are both less than half of the length of the idle stage.

[0009] In a possible implementation, in order to reduce the control difficulty, the method further comprises: controlling a first gamma voltage and a second gamma voltage to remain unchanged when it is determined that the display panel enters the idle stage.

[0010] In a possible implementation, in order to further reduce the loss of the display device, the method further comprises: controlling the first gamma voltage and the second gamma voltage to decrease by a second threshold value within the first preset time length when it is determined that the display panel enters the idle stage; and controlling the second gamma voltage and the second gamma voltage to increase by the second threshold value within the second preset time length before the display panel enters the display stage.

[0011] In a second aspect, an embodiment of the present application provides a control device of a power module, the control device comprising: a control unit; the control unit is configured to: control a first gamma current and a second gamma current to decrease by a first threshold value within a first preset time length after determining that a display panel enters a blanking stage; a driving process of the display panel comprises the blanking stage and a display stage, and the display panel does not receive a data signal in the blanking stage; and the control unit is further configured to: control the first gamma current and the second gamma current to increase by the first threshold value within a second preset time length before the display panel enters the display stage.

[0012] In a possible implementation, the control unit is specifically configured to: control the first gamma current to decrease by the first threshold value to obtain a first current threshold value, and control the second gamma current to decrease by the first threshold value to obtain a second current threshold value, and absolute values of the first current threshold value and the second current threshold value are greater than zero.

[0013] In a possible implementation, the first preset time length and the second preset time length are both less than half of a length of the blanking stage.

[0014] In a possible implementation, the control unit is further configured to: control a first gamma voltage and a second gamma voltage to remain unchanged after determining that the display panel enters the blanking stage.

[0015] In a possible implementation, the control unit is further configured to: control the first gamma voltage and the second gamma voltage to decrease by a second threshold value within the first preset time length after determining that the display panel enters the blanking stage; and control the second gamma voltage and the second gamma voltage to increase by the second threshold value within the second preset time length before the display panel enters the display stage.

[0016] In a third aspect, an embodiment of the present application provides a control device of a power module, the control device comprising: a memory and a processor; the memory is configured to store program instructions; and the processor is configured to invoke the program instructions stored in the memory to execute the control method of the power module provided in the first aspect of the present application and any possible implementation thereof.

[0017] In a fourth aspect, an embodiment of the present application provides a computer readable storage medium, the computer readable storage medium stores computer instructions, when the computer instructions run on a computer, the computer is caused to execute the control method of the power module provided in the first aspect of the present application and any possible implementation thereof.

[0018] The technical effects that can be achieved by the second aspect to the fourth aspect described above can be explained with reference to the technical effects that can be achieved by any possible design of the first aspect described above, and the repeated parts will not be discussed. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 is a structural schematic diagram of a display device provided by an embodiment of the present application;

[0020] Fig. 2 is a flowchart of a control method of a power module provided by an embodiment of the present application;

[0021] Fig. 3 is a timing diagram of signals in a display panel driving process provided by an embodiment of the present application;

[0022] Fig. 4 is a timing diagram of signals in a display panel driving process provided by an embodiment of the present application;

[0023] Fig. 5 is a timing diagram of signals in a display panel driving process provided by an embodiment of the present application;

[0024] Fig. 6 is a structural schematic diagram of a control device of a power module provided by an embodiment of the present application;

[0025] Fig. 7 is a structural schematic diagram of a control device of a power module provided by an embodiment of the present application. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings. The specific operation method in the method embodiment can also be applied to the device embodiment or the system embodiment. It should be noted that in the description of the present application, "at least one" means one or more, wherein more means two or more than two. In view of this, "more" in the embodiment of the present application can also be understood as "at least two". "And / or", which describes the association relationship of the associated objects, means that there can be three kinds of relationships, for example, A and / or B, which can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. In addition, the character " / ", if not specially stated, generally represents that the front and rear associated objects are in an "or" relationship. In addition, it should be understood that in the description of the present application, "first", "second", etc. are used only for the purpose of distinguishing the description, and cannot be understood as indicating or implying relative importance, nor can it be understood as indicating or implying order.

[0027] It should be noted that "coupling" in the embodiment of the present application can be understood as electrical connection, and the coupling between two electrical elements can be direct or indirect coupling between the two electrical elements. For example, A and B are connected, which can be direct coupling between A and B, or indirect coupling between A and B through one or more other electrical elements, for example, A and B are coupled, or A and C are directly coupled, C and B are directly coupled, and A and B are coupled through C. In some scenarios, "coupling" can also be understood as connection. In short, A and B are coupled, which can enable A and B to transmit electrical energy.

[0028] For the convenience of understanding the technical solutions provided by the embodiments of the present application, the specific application scenarios will be described first. The control scheme of the power module provided by the embodiments of the present application can be applied to electronic devices with display screens, which can be common devices with display functions such as mobile phones, tablet computers, wearable electronic devices, etc. Of course, the technical solutions claimed in the present application can also be applied to other types of electronic devices with display functions.

[0029] As shown in FIG. 1, it is a structural schematic diagram of a display device. Referring to FIG. 1, the display device mainly includes a display driving module (DDIC), a power module and a display panel. A pixel array composed of a plurality of pixels is arranged on the display panel, and the display driving module can adjust the display effect of the display panel by controlling the voltage amplitude output to the pixel array. The power module is connected with the display driving module. When it is needed to drive the display panel to display, the power module can generate first gamma electrical parameters and second gamma electrical parameters according to the display requirements of the display device, and output the above electrical parameters to the display driving module. The display driving module internally stores the corresponding relationship between the above gamma electrical parameters and the supply voltage, and outputs the corresponding supply voltage to the display panel according to the received gamma electrical parameters, so as to drive the display panel to light up. The minimum gray scale brightness of the display panel corresponding to the first gamma electrical parameters, and the maximum gray scale brightness of the display panel corresponding to the second gamma electrical parameters.

[0030] It should be noted that the display device structure shown in FIG. 1 is only an example. In actual implementation, the display device can also include other functional circuit devices, which will not be described in detail herein.

[0031] Next, the control method of the power module provided by the embodiments of the present application will be introduced in combination with the display device structure shown in FIG. 1.

[0032] The control method of the power module provided by the embodiments of the present application can be applied to the above-mentioned display device, and the power module in the above-mentioned display device is executed. The power consumption in the process of driving the display panel can be reduced by adjusting the gamma electrical parameters output by the power module to the display driving module. Referring to FIG. 2, it mainly includes the following steps:

[0033] S201: controlling the first gamma current and the second gamma current to decrease by a first threshold value within a first preset time length when it is determined that the display panel enters the blanking stage. The driving process of the display panel includes a blanking stage and a display stage. In the blanking stage, the display panel does not receive a data signal or receives a data signal, but the above-mentioned data signal does not affect the display effect of the display panel in the display stage.

[0034] As shown in FIG. 3, a signal timing diagram in the process of driving the display panel by the display device is shown in FIG. 3. The driving process of the display panel includes a blanking stage T1 and a display stage T2. The blanking stage T1 is generally before the display stage T2. The blanking stage T1 includes a pre-blanking stage T11 and a post-blanking stage T12. The post-blanking stage T12 is between the pre-blanking stage T11 and the display stage T2. The blanking stage T1 corresponds to a power-on stage before the display panel displays a normal picture. In this stage, the data signal output by the display driving module to the display panel is in an invalid state.

[0035] In actual use, if the gamma electrical parameters output by the power module are not adjusted, the signal timing in the process of driving the display panel is shown in FIG. 3. The power module sends the display driving module the first gamma voltage VGSP and the second gamma voltage VGMP with fixed amplitudes, and the first gamma current IGSP and the second gamma current IGMP. The first gamma current IGSP corresponds to the current required by the minimum gray scale brightness of the display panel. The second gamma current IGMP corresponds to the current required by the maximum gray scale brightness of the display panel. The first gamma voltage VGSP corresponds to the voltage required by the minimum gray scale brightness of the display panel. The second gamma voltage VGMP corresponds to the voltage required by the maximum gray scale brightness of the display panel.

[0036] In the embodiment of the present application, in order to ensure that the display panel can normally display a picture, the power consumption adjustment process of the display device is placed in the blanking stage T1 before the display stage T2. When it is determined that the display panel enters the blanking stage T1 in which the data is invalid, the first gamma current IGSP and the second gamma current IGMP can be controlled to decrease by a first threshold value, and the first current threshold value and the second current threshold value are obtained, respectively. Since the power consumption of the display device is mainly determined by the amplitude of the current and the amplitude of the voltage, when the amplitudes of the first gamma current IGSP and the second gamma current IGMP decrease, the power consumption of the display device in the blanking stage T1 also decreases, thereby achieving the purpose of reducing the power consumption of the display device in the driving process.

[0037] In some embodiments, in order to reduce the driving difficulty of the display panel, when the first gamma current IGSP and the second gamma current IGMP are controlled to decrease by the first threshold value, the first gamma voltage VGSP corresponding to the first gamma current IGSP can be controlled to remain unchanged, and the amplitude of the second gamma voltage VGMP corresponding to the second gamma current IGMP can be controlled to remain unchanged.

[0038] In some embodiments, in order to further reduce the loss in the driving process of the display device, when the first gamma current IGSP and the second gamma current IGMP are controlled to decrease by the first threshold, the first gamma voltage VGSP corresponding to the first gamma current IGSP can also be controlled to decrease by a second threshold, and the second gamma voltage VGMP corresponding to the second gamma current IGMP can also be controlled to decrease by the second threshold.

[0039] In actual use, the values of the first threshold and the second threshold can be set according to the gamma parameters required by the display stage T2 of the display device, and generally the specific values of the first threshold and the second threshold are smaller than the values of the gamma parameters required by the display stage T2, so as to ensure that the power module can still output the gamma parameters in the blanking stage T1. In this way, when the display panel needs to enter the display stage T2 of the normal display picture, the gamma parameters output by the power module can quickly recover to the initial values, so as to ensure the normal display of the display panel.

[0040] S202: In the second preset time length before the display panel enters the display stage, the first gamma current and the second gamma current are controlled to increase by a first threshold.

[0041] In actual use, as shown in FIG. 3, generally the first gamma voltage VGSP, the second gamma voltage VGMP, the first gamma current IGSP and the second gamma current IGMP are fixed values. When the display panel enters the blanking stage T1, after the first gamma current IGSP and the second gamma current IGMP are controlled to decrease by the first threshold, before the display device enters the display stage T2 of the normal display picture, the first gamma current IGSP and the second gamma current IGMP need to be controlled to increase by the first threshold, that is, the first gamma current IGSP and the second gamma current IGMP are controlled to recover to the normal initial values required by the display stage T2, so as to ensure that the display panel can normally display the picture.

[0042] In a specific example, referring to FIG. 5, if the display device enters the blanking stage T1, in order to reduce the loss in the working process of the display device, not only the amplitude of the first gamma current IGSP and the second gamma current IGMP is controlled to decrease by a first threshold, but also the amplitude of the first gamma voltage VGSP and the second gamma voltage VGMP is controlled to decrease by a second threshold. In order to ensure the normal working of the display device in the display stage T2, not only the first gamma current IGSP and the second gamma current IGMP need to be controlled to increase by the first threshold, but also the first gamma voltage VGSP and the second gamma voltage VGMP need to be controlled to increase by the second threshold, that is, the first gamma current IGSP, the second gamma current IGMP, the first gamma voltage VGSP and the second gamma voltage VGMP all recover to the normal initial values required in the display stage T2, so that the voltage amplitude received by the display panel before the display panel enters the display stage T2 of the normal display picture has recovered to the normal amplitude required for display, thereby ensuring the display effect of the display panel in the display stage T2.

[0043] It should be noted that the calculation method of the initial values of the first gamma voltage VGSP, the second gamma voltage VGMP, the first gamma current IGSP and the second gamma current IGMP can refer to the related introduction of the display device in the industry, which will not be described in detail here.

[0044] As can be known from the above introduction, the effect of reducing the power consumption of the display device is controlled by the time length between the time when the gamma electrical parameters are controlled to decrease and the time when the gamma electrical parameters are controlled to increase, so the total time length of the decrease amplitude of the gamma electrical parameters can be controlled to adjust the total power consumption of the display device.

[0045] In a specific embodiment, since the blanking stage T11 includes the front blanking stage T11 and the rear blanking stage T12, part of the front part region occupied by the front blanking stage T11 can be taken as the first preset time length, and the second half part of the region occupied by the rear blanking stage T12 can be taken as the second preset time length, that is, the first gamma current IGSP and the second gamma current IGMP can be controlled to decrease by the first threshold in the front blanking stage T11, and the amplitude of the first gamma current IGSP and the second gamma current IGMP can be controlled to increase to the current amplitude required in the display stage T2 in the rear blanking stage T12.

[0046] In a specific embodiment, the values of the first preset time length and the second preset time length can be set according to the power consumption requirement of the display device. For example, the first preset time length and the second preset time length can be set to 0.3 times the length of the blanking stage T11, that is, the first gamma current I GSP and the second gamma current I GMP are controlled to decrease by a first threshold value within the first 0.3 times the length of the blanking stage, and the first gamma current I GSP and the second gamma current I GMP are controlled to increase by a first threshold value within the last 0.3 times the length of the blanking stage, so as to restore the amplitude of the first gamma current I GSP and the second gamma current I GMP to the current amplitude required in the display stage T2.

[0047] It should be noted that the embodiments of the present application are described by taking the same current amplitude of the first gamma current I GSP and the second gamma current I GMP as an example. In actual implementation, the first gamma current I GSP and the second gamma current I GMP can also decrease by different current amplitudes, which is not limited herein.

[0048] Based on the above embodiments, the embodiments of the present application also provide a power module control device, which can be used to execute the power module control method shown in FIG. 2. Referring to FIG. 6, the power module control device 600 can include a control unit 601.

[0049] The control unit 601 is specifically configured to: control the first gamma current and the second gamma current to decrease by a first threshold value within a first preset time length after determining that the display panel enters a blanking stage; the driving process of the display panel includes the blanking stage and a display stage, and the display panel does not receive a data signal in the blanking stage; and control the first gamma current and the second gamma current to increase by a first threshold value within a second preset time length before the display panel enters the display stage.

[0050] In a possible implementation, the control unit 601 is specifically configured to: control the first gamma current to decrease by a first threshold value to obtain a first current threshold value, and control the second gamma current to decrease by a first threshold value to obtain a second current threshold value, and the absolute values of the first current threshold value and the second current threshold value are greater than zero.

[0051] In a possible implementation, the first preset time length and the second preset time length are both less than half of the length of the blanking stage.

[0052] In a possible implementation, the control unit 601 is further configured to: control the first gamma voltage and the second gamma voltage to remain unchanged when it is determined that the display panel enters the blanking stage.

[0053] In a possible implementation, the control unit 601 is further configured to: control the first gamma voltage and the second gamma voltage to decrease by a second threshold value within a first preset time length after determining that the display panel enters the blanking stage; and control the second gamma voltage and the second gamma voltage to increase by a second threshold value within a second preset time length before the display panel enters the display stage.

[0054] Based on the same technical concept, the embodiments of the present application further provide a power module control device, which can be used to execute the power module control method shown in FIG. 2. For example, the power module control device can be a processor chip.

[0055] As shown in FIG. 7, the power module control device 700 can include a memory 701, a processor 702 and a transmission interface 703. The memory 701 is configured to store program codes, and the transmission interface 703 can be a bidirectional communication interface, and can be used to, for example, send and receive messages to establish a connection, confirmation and exchange of any other information related to a communication link and / or, for example, image processing picture data and / or information related to data transmission. For example, the transmission interface 703 can include a sending interface and a receiving interface, and the transmission interface can be any type of interface according to any proprietary or standardized interface protocol, such as a high definition multimedia interface (HDMI), a Mobile Industry Processor Interface (MIPI), a MIPI standardized Display Serial Interface (DSI), a Video Electronics Standards Association (VESA) standardized Embedded Display Port (eDP), a Display Port (DP) or a V-By-One interface, which is a digital interface standard developed for image transmission, and various wired or wireless interfaces, optical interfaces, etc.

[0056] Specifically, the processor 702 is configured to invoke the program codes stored in the memory 701 through the transmission interface 703 to execute the power module control method shown in FIG. 2.

[0057] It should be noted that the power module control device 700 can be used to execute the power module control method shown in FIG. 2, and the implementation modes not described in detail in the power module control device 700 can refer to the related description in the power module control method shown in FIG. 2, which will not be described here.

[0058] In the embodiments described above, all or some of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or some of the embodiments can be implemented in the form of a computer program product storing computer program instructions. The computer program instructions are executed in a computer to implement the procedures or functions according to the embodiments of the present application. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer program instructions can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer program instructions can be transmitted from a website, a computer, a server or a data center to another website, computer, server or data center through a wired (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (for example, infrared, wireless, microwave, etc.) manner. The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be a magnetic medium (for example, floppy disk, hard disk, magnetic tape), an optical medium (for example, DVD), or a semiconductor medium (for example, solid state disk (SSD)) and the like.

[0059] The various illustrative logical blocks, modules, circuits and algorithms described in connection with the embodiments disclosed herein can be implemented or performed by a general purpose processor, a digital signal processor, an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the described functions. The general purpose processor can be a microprocessor, optionally, the general purpose processor can also be any conventional processor, controller, microcontroller, or state machine. The processor can also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration.

[0060] The steps of the methods or algorithms described in the embodiments disclosed herein can be directly embedded in hardware, software units executed by a processor, or a combination of the two. The software units can be stored in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium in the art. The storage medium can be connected to the processor so that the processor can read information from the storage medium and can write information to the storage medium. Alternatively, the storage medium can also be integrated into the processor. The processor and the storage medium can be arranged in an ASIC.

[0061] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart and / or block diagram block or blocks.

[0062] Although the present application has been described in connection with certain specific features and embodiments thereof, it is to be understood that various modifications and changes can be made thereto without departing from the spirit and scope of the application. Accordingly, it is intended that all such modifications and changes be included within the scope of the application as defined by the following claims and their equivalents. Obviously, many modifications and variations of this application are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

Claims

1. A control method for a power module, characterized in that: include: Controlling the first gamma current and the second gamma current to reduce a first threshold value within a first preset time period when determining that the display panel enters a blanking phase; The driving process of the display panel includes a blanking phase and a display phase, and the display panel does not receive a data signal during the blanking phase; Within a second preset time period before the display panel enters the display phase, the first gamma current and the second gamma current are controlled to increase by the first threshold value.

2. The method according to claim 1, wherein The controlling the first gamma current and the second gamma current to decrease includes: The first gamma current is controlled to reduce the first threshold to obtain a first current threshold, and the second gamma current is controlled to reduce the first threshold to obtain a second current threshold, and the absolute values ​​of the first current threshold and the second current threshold are greater than zero.

3. The method according to claim 1 or 2, wherein: The first preset duration and the second preset duration are both less than half of the duration of the blanking phase.

4. The method according to any one of claims 1 to 3, wherein The method further comprises: When it is determined that the display panel enters the blanking stage, the first gamma voltage and the second gamma voltage are controlled to remain unchanged.

5. The method according to any one of claims 1 to 3, wherein: The method further comprises: During the first preset time period when the display panel is determined to enter the blanking phase, controlling the first gamma voltage and the second gamma voltage to decrease by a second threshold value; Within the second preset time period before the display panel enters the display phase, the second gamma voltage is controlled and the second gamma voltage is increased by the second threshold value.

6. A control device for a power module, characterized in that: include: control unit; The control unit: controls the first gamma current and the second gamma current to decrease by a first threshold value within a first preset time period when the display panel enters a blanking stage; the driving process of the display panel includes a blanking stage and a display stage, and the display panel does not receive a data signal during the blanking stage; and controls the first gamma current and the second gamma current to increase by the first threshold value within a second preset time period before the display panel enters the display stage.

7. The device according to claim 6, characterized in that The control unit is specifically used for: The first gamma current is controlled to reduce the first threshold to obtain a first current threshold, and the second gamma current is controlled to reduce the first threshold to obtain a second current threshold, and the absolute values ​​of the first current threshold and the second current threshold are greater than zero.

8. The device according to claim 6 or 7, characterized in that The first preset duration and the second preset duration are both less than half of the duration of the blanking phase.

9. The device according to any one of claims 6 to 8, characterized in that The control unit is further configured to: When it is determined that the display panel enters the blanking stage, the first gamma voltage and the second gamma voltage are controlled to remain unchanged.

10. The device according to any one of claims 6 to 9, characterized in that: The control unit is further configured to: During the first preset time period when the display panel is determined to enter the blanking phase, controlling the first gamma voltage and the second gamma voltage to decrease by a second threshold value; Within the second preset time period before the display panel enters the display phase, the second gamma voltage is controlled and the second gamma voltage is increased by the second threshold value.

11. A rectifier control device, characterized in that: include: Memory and processor; a memory for storing program instructions; A processor, configured to call program instructions stored in the memory to execute the method according to any one of claims 1 to 5.

12. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a computer, the computer is caused to execute the method according to any one of claims 1 to 5.

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