Driving method, driving system, electronic equipment and computer readable storage medium

Abstract

The invention discloses a driving method, a driving system, electronic equipment and a computer readable storage medium, the method is applied to a display driving chip, the method comprises the following steps: obtaining a target output voltage of a power supply conversion module, the power supply conversion module is used for supplying power to the display driving chip and a display panel; generating a first feedback signal according to the target output voltage of the power conversion module; the first feedback signal is sent to the power supply module, and the power supply module supplies power to the power conversion module according to the first feedback signal after receiving the first feedback signal. According to the scheme, the power consumption of the display terminal can be reduced.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a driving method, a driving system, an electronic device, and a computer-readable storage medium. Background Art

[0002] With the rapid development of display technology, the demand for longer standby time has become increasingly prominent, becoming a stumbling block to the development of display technology. Longer standby time requires lower power consumption requirements for panels. Given the slow development of battery technology, reducing power consumption has become one of the main issues facing the display panel industry. Summary of the invention

[0003] The present application provides a driving method, a driving system, an electronic device, and a computer-readable storage medium, which can reduce the power consumption of a display terminal.

[0004] A first aspect of the present application provides a driving method, which is applied to a display driver chip, and the method includes: obtaining a target output voltage of a power conversion module, wherein the power conversion module is used to supply power to the display driver chip and a display panel; generating a first feedback signal according to the target output voltage of the power conversion module; and sending the first feedback signal to a power supply module, wherein after receiving the first feedback signal, the power supply module supplies power to the power conversion module according to the first feedback signal.

[0005] In one embodiment, the target output voltage includes at least one of a first power voltage, a second power voltage output by the power conversion module to the display panel, and a third power voltage output by the power conversion module to the display driver chip.

[0006] Preferably, the step of obtaining the target output voltage of the power conversion module includes: searching for the power supply voltage with the largest absolute value among the first power supply voltage, the second power supply voltage and the third power supply voltage; and determining the power supply voltage with the largest absolute value as the target output voltage.

[0007] Preferably, the step of sending the first feedback signal to the power supply module includes: sending the first feedback signal to the power supply module in the form of a pulse signal.

[0008] Preferably, the step of sending the first feedback signal to the power supply module in the form of a pulse signal includes: sending the first feedback signal to the power supply module using a SWIRE communication protocol.

[0009] In one embodiment, the power supply module supplies power to the power conversion module through a mainboard, and the step of sending the first feedback signal to the power supply module includes: sending the first feedback signal directly to the power supply module, or sending the first feedback signal to the mainboard, wherein the mainboard sends the first feedback signal to the power supply module after receiving the first feedback signal.

[0010] In one embodiment, the power supply module supplies power to the power conversion module through a mainboard, and the step of sending the first feedback signal to the power supply module includes: sending the first feedback signal directly to the power supply module; the method also includes: generating a second feedback signal according to the target output voltage of the power conversion module; sending the second feedback signal to the mainboard, wherein after receiving the second feedback signal, the mainboard outputs a voltage to the power conversion module according to the first voltage and the second feedback signal, and the first voltage is the voltage output by the power supply module to the mainboard according to the first feedback signal.

[0011] The second aspect of the present application also provides a driving method, which is applied to a power supply end, and the power supply end includes a power supply module. The method includes: the power supply module supplies power to the power conversion module, wherein the power conversion module is used to supply power to the display driver chip and the display panel; the power supply module receives a first feedback signal sent by the display driver chip, and supplies power to the power conversion module according to the first feedback signal; wherein, after obtaining the target output voltage of the power conversion module, the display driver chip generates the first feedback signal according to the target output voltage, and sends the first feedback signal to the power supply module.

[0012] In one embodiment, the power supply end further includes a mainboard, and the power supply module supplies power to the power conversion module through the mainboard; the step of supplying power to the power conversion module according to the first feedback signal includes: the power supply module supplies power to the mainboard according to the first feedback signal; the mainboard supplies power to the power conversion module according to the first voltage output by the power supply module.

[0013] In one embodiment, the step of the mainboard supplying power to the power conversion module according to the first voltage output by the power supply module includes: the mainboard outputs voltage to the power conversion module according to the first voltage and a second feedback signal; wherein, after obtaining the target output voltage, the display driver chip further generates the second feedback signal according to the target output voltage, and sends the second feedback signal to the mainboard.

[0014] The third aspect of the present application provides a driving system, which includes: a display panel, a power conversion module, a display driver chip and a power supply module, wherein the power conversion module is used to supply power to the display driver chip and the display panel; the display driver chip is used to obtain a target output voltage of the power conversion module, and generate a first feedback signal according to the target output voltage of the power conversion module, and further send the first feedback signal to the power supply module; the power supply module is used to supply power to the power conversion module according to the first feedback signal after receiving the first feedback signal.

[0015] A fourth aspect of the present application provides an electronic device, which includes a processor, a memory, and a communication circuit, wherein the processor is coupled to the memory and the communication circuit, respectively, and program data is stored in the memory. The processor implements the steps in the driving method in any of the above embodiments by executing the program data in the memory.

[0016] A fifth aspect of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program can be executed by a processor to implement the steps in the driving method in any of the above embodiments.

[0017] Different from the prior art, the beneficial effect of the present application is as follows: the present application obtains a first feedback signal according to the target output voltage of the power conversion module, sends the first feedback signal to the power supply module, and the power supply module supplies power to the power conversion module according to the first feedback signal, thereby realizing the linkage between the input voltage of the power conversion module and the target output voltage, avoiding the unstable voltage of the power supply to the power conversion module caused by unstable power of the power supply module, so that its input voltage is determined by the target output voltage, thereby improving the voltage conversion efficiency of the power conversion module, and thereby reducing the power consumption of the display terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0019] Figure 1 is a schematic diagram of a display terminal in the prior art;

[0020] Figure 2 is a flow chart of a driving method of the present application applied to a driving chip;

[0021] Figure 3is a schematic diagram of a first implementation mode of a display terminal of the present application;

[0022] Figure 4 yes Figure 2 A schematic flow chart of an implementation method of step S100;

[0023] Figure 5 is a schematic diagram of a second implementation of the display terminal of the present application;

[0024] Figure 6 is a schematic diagram of a third implementation mode of the display terminal of the present application;

[0025] Figure 7 yes Figure 2 A schematic flow chart of an implementation method of step S300;

[0026] Figure 8 is a schematic diagram of a fourth implementation mode of the display terminal of the present application;

[0027] Fig. 9 It is a flowchart of the driving method of the present application applied to the power supply end;

[0028] Fig.10 yes Fig. 9 A schematic flow chart of an implementation method of step S500;

[0029] Fig.11 It is a structural schematic diagram of an embodiment of the electronic device of the present application;

[0030] Fig.12 It is a structural schematic diagram of an implementation method of a computer-readable storage medium of the present application. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] It should be noted that the terms "first" and "second" in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0033] In the prior art, a display terminal includes a display terminal and a power supply terminal, such as Figure 1 As shown, the display end includes a display panel 110, a display driver chip 120, a power conversion module 130, etc., and the power supply end includes a power supply module 140, etc. Among them, the power supply of the display panel 110 comes from the display driver chip 120 and the power conversion module 130, and the power supply of the display driver chip 120 comes from the power conversion module 130, and the power supply of the power conversion module 130 comes from the power supply module 140. The specific voltage that the power conversion module 130 supplies to the display driver chip 120 and the display panel 110 is sent to the power conversion module 130 by the display driver chip 120 through the control signal 150. According to the control signal 150, the power conversion module 130 converts the voltage provided by the power supply module 140 into an analog reference voltage VCI, a positive power supply voltage ELVDD, a negative power supply voltage ELVSS, etc., and provides the analog reference voltage VCI to the display driver chip 120, and provides the positive power supply voltage ELVDD and the negative power supply voltage ELVSS to the display panel 110. In addition, the inventors have discovered through research that the power supply module 140 (such as a battery, etc.) will usually have its power level drop during use or standby mode, or increase during charging, causing the battery voltage to change with the change in power level. This causes the voltage conversion efficiency of the battery to change when supplying power to downstream units, thereby increasing the power consumption of the display terminal.

[0034] See also Figure 2 He Ru Figure 3 In a first aspect, the present application provides a driving method, which is applied to a display driving chip 120, and includes:

[0035] S100 : Obtaining a target output voltage of the power conversion module 130 , wherein the power conversion module 130 is used to supply power to the display driver chip 120 and the display panel 110 .

[0036] Specifically, the power conversion module 130 may have multiple output voltages, and at least provide them to the display panel 110 and the display driver chip 120 respectively. The target output voltage may be the output voltage of the power conversion module 130, or may be obtained by numerical calculation based on the output voltage of the power conversion module 130. It should be noted that, according to the content of the above-mentioned prior art, the specific voltage value provided by the power conversion module 130 to the display driver chip 120 and the display panel 110 is sent to the power conversion module 130 by the display driver chip 120 through the control signal 150, and the target output voltage is determined according to the voltage output by the power conversion module 130, therefore, the display driver chip 120 can directly obtain the target output voltage of the power conversion module 130.

[0037] S200 : Generate a first feedback signal 160 according to a target output voltage of the power conversion module 130 .

[0038] Specifically, the target output voltage has a preset relationship with the first feedback signal 160 , and there is no limitation on the form of the first feedback signal 160 , as long as the first feedback signal 160 can transmit relevant information of the target output voltage.

[0039] S300 : Sending the first feedback signal 160 to the power supply module 140 , wherein after receiving the first feedback signal 160 , the power supply module 140 supplies power to the power conversion module 130 according to the first feedback signal 160 .

[0040] Specifically, the power supply module 140 will supply power to the power conversion module 130 according to the first feedback signal 160. That is, the power supply module 140 will provide an input voltage to the power conversion module 130 according to the target output voltage of the power conversion module 130. Therefore, for the power conversion module 130, its input voltage and target output voltage can both be controlled by the display driver chip 120.

[0041] Different from the prior art, the present application determines the input voltage of the power conversion module 130 according to the target output voltage of the power conversion module 130 through the display driver chip 120, thereby realizing the front and rear linkage of power supply, avoiding the prior art that as the battery power changes, the battery output voltage also changes, resulting in unstable and uncontrollable voltage of the input power conversion module 130, which reduces the conversion efficiency of the power conversion module 130 and increases the power consumption of the display terminal. The present application can determine the input voltage of the power conversion module 130 according to the target output voltage through the linkage of the front and rear voltages, thereby increasing the voltage conversion efficiency of the power conversion module 130 and significantly reducing the power consumption of the display terminal.

[0042] In one embodiment, see Figure 3The target output voltage includes at least one of a first power voltage ELVDD, a second power voltage ELVSS output by the power conversion module 130 to the display panel 110 , and a third power voltage VCI output by the power conversion module 130 to the display driver chip 120 .

[0043] Specifically, the first power supply voltage ELVDD is a positive power supply voltage of the display panel 110, the second power supply voltage ELVSS is a negative power supply voltage of the display panel 110, and the third power supply voltage VCI is an analog reference voltage of the display driver chip 120. It should be noted that the target output voltage may be one of the first power supply voltage ELVDD, the second power supply voltage ELVSS, and the third power supply voltage VCI, or may be multiple, or may be all.

[0044] Of course, in some other embodiments, the power conversion module 130 can also output voltage to other power-consuming modules, and the target output voltage can further include the output voltages of these power-consuming modules. As long as the voltage is output from the power conversion module 130, the front and rear voltages can be linked through this method to improve the voltage conversion efficiency.

[0045] In one embodiment, see Figure 4 , the above step S100 includes:

[0046] S110 : searching for a power supply voltage with the largest absolute value among the first power supply voltage ELVDD, the second power supply voltage ELVSS, and the third power supply voltage VCI.

[0047] Specifically, there may be positive or negative numbers in the voltage values ​​of the first power supply voltage ELVDD, the second power supply voltage ELVSS and the third power supply voltage VCI. To facilitate comparison, the absolute values ​​are taken, and then the maximum value is taken. This search method is simple and fast.

[0048] S120: Determine the power supply voltage with the largest absolute value as the target output voltage.

[0049] Specifically, the voltage with the largest absolute value in its output voltage usually has the greatest impact on the power conversion module 130. By determining the power voltage with the largest absolute value as the target output voltage, the linkage effect between the input voltage of the power conversion module 130 and the target output voltage can be improved.

[0050] Of course, in some other implementations, the first power supply voltage, the second power supply voltage, and the third power supply voltage may be determined as the target output voltage by weighted summation.

[0051] In one embodiment, the step S300 includes:

[0052] S310: Send the first feedback signal 160 to the power supply module 140 in the form of a pulse signal.

[0053] Specifically, the form of the pulse signal refers to the number or width of pulses, which is determined by the target output voltage. The first feedback signal 160 can send relevant information of the output voltage of the power supply module 140 determined by the target output voltage to the power supply module 140 in the form of the pulse signal.

[0054] In one embodiment, the above step S310 includes:

[0055] S311: Send the first feedback signal 160 to the power supply module 140 using the SWIRE communication protocol.

[0056] Specifically, the SWIRE communication protocol is a protocol for transmitting signals in the form of pulses. The specific form can be the correspondence between the number of pulses and the output voltage of the power supply module 140. In the prior art, the control signal 150 uses the SWIRE communication protocol to transmit the signal, and the first feedback signal 160 of the present application also uses the SWIRE communication protocol to simplify the design of the display driver chip 120.

[0057] Of course, other communication protocols may also be used, such as the I2C communication protocol, etc., and this application does not limit this.

[0058] In one embodiment, see Figure 5 , the power supply module 140 supplies power to the power conversion module 130 through the mainboard 200, that is, the power supply module 140 indirectly supplies power to the power conversion module 130. Therefore, when considering the voltage linkage between the input voltage of the power conversion module 130 and the target output voltage, the voltage drop of the voltage output by the power supply module 140 on the mainboard 200 needs to be considered. If the mainboard 200 only has a transmission function, the voltage drop problem can be ignored. If there is a voltage drop on the mainboard 200, the voltage difference caused by the voltage drop needs to be reflected in the first feedback signal 160, that is, in order to ensure the conversion efficiency of the input power conversion module 130. Among them, in some embodiments, the voltage drop may be the loss of the line itself. Of course, in some other embodiments, the voltage drop may also be the design of the circuit itself. For example, the mainboard 200 includes an LDO (low dropout linear regulator). The LDO is to increase the stability of the voltage, but the voltage will also drop after passing through the LDO. Therefore, in the first feedback signal 160 of the present application, it can be selected whether to reflect the voltage drop of the upstream unit according to the situation.

[0059] The above step S300 includes:

[0060] S321 : Send the first feedback signal 160 directly to the power supply module 140 .

[0061] Specifically, the display driver chip 120 sends the first feedback signal 160 to the power supply module 140 . The first feedback signal 160 sent by the display driver chip 120 directly reaches the power supply module 140 without passing through other components.

[0062] In one embodiment, see Figure 6 , the power supply module 140 supplies power to the power conversion module 130 through the mainboard 200, and the above step S300 includes:

[0063] S322 : Send the first feedback signal 160 to the mainboard 200 , wherein the mainboard 200 sends the first feedback signal 160 to the power supply module 140 after receiving the first feedback signal 160 .

[0064] Specifically, this embodiment is the same as the above embodiment in that the power supply module 140 indirectly supplies power to the power conversion module 130 through the mainboard 200, and is different from the above embodiment in that the first feedback signal 160 is not directly sent to the power supply module 140, but is first sent to the mainboard 200, and then sent to the power supply module 140 through the mainboard 200. Of course, the information contained in the first feedback signal 160 is still the same.

[0065] In one embodiment, see Figure 7 and Figure 8 , the power supply module 140 supplies power to the power conversion module 130 through the mainboard 200, and the above step S300 includes:

[0066] S331 : Send the first feedback signal 160 directly to the power supply module 140 .

[0067] Specifically, this step is the same as step S321 in the above embodiment, and its effect is also similar and will not be repeated here.

[0068] The above method further includes:

[0069] S332 : Generate a second feedback signal 210 according to the target output voltage of the power conversion module 130 .

[0070] Specifically, the target output voltage has a preset relationship with the second feedback signal 210 , and there is no limitation on the form of the second feedback signal 210 , as long as the second feedback signal 210 can transmit relevant information of the target output voltage.

[0071] S333: Send the second feedback signal 210 to the mainboard 200, wherein after receiving the second feedback signal 210, the mainboard 200 outputs a voltage to the power conversion module 130 according to the first voltage 220 and the second feedback signal 210, and the first voltage 220 is the voltage output by the power supply module 140 to the mainboard 200 according to the first feedback signal 160.

[0072] Specifically, after receiving the second feedback signal 210, the mainboard 200 outputs voltage to the power conversion module 130 according to the first voltage 220 and the second feedback signal 210. That is, the mainboard 200 provides input voltage to the power conversion module 130 according to the target output voltage of the power conversion module 130. Therefore, the effect of this embodiment is to realize voltage output control of different upstream units through the first feedback signal 160 and the second feedback signal 210, thereby forming multi-level voltage control, which can improve the conversion efficiency of multi-level transmission voltage.

[0073] See also Figure 3 and Fig. 9 The second aspect of the present application provides a driving method, which is applied to a power supply end, the power supply end includes a power supply module 140, and the method includes:

[0074] S400 : the power supply module 140 supplies power to the power conversion module 130 , wherein the power conversion module 130 is used to supply power to the display driver chip 120 and the display panel 110 .

[0075] Specifically, the power supply module 140 can supply power to the power conversion module 130 in a direct manner, such as Figure 3 , or indirectly as Figure 5 and Figure 6 The power conversion module 130 then converts the voltage provided by the power supply module 140 and distributes it to the display driver chip 120 and the display panel 110 for power supply.

[0076] S500: The power supply module 140 receives the first feedback signal 160 sent by the display driver chip 120, and supplies power to the power conversion module 130 according to the first feedback signal 160; wherein, after obtaining the target output voltage of the power conversion module 130, the display driver chip 120 generates a first feedback signal 160 according to the target output voltage, and sends the first feedback signal 160 to the power supply module 140.

[0077] Specifically, the first feedback signal 160 is determined based on the target output voltage. The power supply module 140 can determine its output voltage by receiving the first feedback signal 160, thereby avoiding the situation in the prior art where the output voltage is unstable due to the change in the power supply module voltage as the power supply changes. The present application can determine the required output voltage by receiving the first feedback signal 160 by the power supply module 140, thereby achieving the linkage between the target output voltage and the output voltage of the power supply module 140, thereby improving the voltage conversion efficiency of the power conversion module 130, thereby reducing the power consumption of the display terminal.

[0078] In one embodiment, see Figure 8 and Fig.10 The power supply end further includes a mainboard 200, and the power supply module 140 supplies power to the power conversion module 130 through the mainboard 200; the above step 500 includes:

[0079] S510 : The power supply module 140 supplies power to the mainboard 200 according to the first feedback signal 160 .

[0080] Specifically, the first feedback signal 160 is obtained according to the target output voltage of the power conversion module 130, and the power supply module 140 supplies power to the mainboard 200 based on the specific needs of the power conversion module 130. This ensures that the output voltage of the power supply module 140 is controllable rather than changing arbitrarily, and the front and rear voltages are linked to each other, which can improve the voltage conversion efficiency.

[0081] S520 : The mainboard 200 supplies power to the power conversion module 130 according to the first voltage 220 output by the power supply module 140 .

[0082] Specifically, when the mainboard 200 supplies power to the power conversion module 130 according to the first voltage 220, whether there is a voltage drop in the mainboard 200 is taken into consideration. When there is no voltage drop, the first voltage 220 can be directly provided to the power conversion module 130. If there is a voltage drop, then the voltage drop can be considered to be compensated in the first feedback signal 160. The specific choice depends on the actual situation.

[0083] In one embodiment, see Figure 8 , the above step S520 includes:

[0084] S521: The mainboard 200 outputs voltage to the power conversion module 130 according to the first voltage 220 and the second feedback signal 210; wherein, after obtaining the target output voltage, the display driver chip 120 further generates a second feedback signal 210 according to the target output voltage, and sends the second feedback signal 210 to the mainboard 200.

[0085] Specifically, after receiving the second feedback signal 210, the mainboard 200 outputs a voltage to the power conversion module 130 according to the first voltage 220 and the second feedback signal 210. That is, the mainboard 200 provides an input voltage to the power conversion module 130 according to the target output voltage of the power conversion module 130. Therefore, combined with the content of the above step S510, the multi-level voltage output control of the display terminal is achieved by receiving the first feedback signal 160 and the second feedback signal 210, which can improve the conversion efficiency of the multi-level voltage.

[0086] See also Figure 1The present application discloses a driving system, which includes: a display panel 110, a power conversion module 130, a display driver chip 120 and a power supply module 140. The power conversion module 130 is used to supply power to the display driver chip 120 and the display panel 110; the display driver chip 120 is used to obtain a target output voltage of the power conversion module 130, and generate a first feedback signal according to the target output voltage of the power conversion module 130, and further send the first feedback signal to the power supply module 140; the power supply module 140 is used to supply power to the power conversion module 130 according to the first feedback signal after receiving the first feedback signal.

[0087] Specifically, the functions of the display panel 110, the power conversion module 130, the display driver chip 120 and the power supply module 140 in the above-mentioned driving system and the technical effects achieved can be referred to the above implementation methods, and this application will not repeat them again.

[0088] See also Fig.11 , Fig.11 3 is a schematic diagram of the structure of an embodiment of an electronic device of the present application. The electronic device 300 includes a processor 310, a memory 320 and a communication circuit 330. The processor 310 is coupled to the memory 320 and the communication circuit 330 respectively. The memory 320 stores program data. The processor 310 implements the steps in any of the above-mentioned implementation methods by executing the program data in the memory 320. The detailed steps can be found in the above-mentioned implementations and will not be repeated here.

[0089] The electronic device 300 may be any device with algorithm capabilities, such as a mobile phone, a tablet computer, a smart watch, a desktop computer or a laptop computer, and is not limited here.

[0090] See also Fig.12 , Fig.12 The computer-readable storage medium 400 stores a computer program 410, which can be executed by a processor to implement the steps in any of the above methods. The detailed method steps can be found in the above related content, which will not be described here.

[0091] Among them, the computer-readable storage medium 400 can specifically be a device that can store the computer program 410, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, or it can also be a server that stores the computer program 410. The server can send the stored computer program 410 to other devices for execution, or it can also run the stored computer program 410 by itself.

[0092] The above description is only an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A driving method, characterized in that: The method is applied to a display driver chip, and the method comprises: Acquiring a target output voltage of a power conversion module, wherein the power conversion module is used to supply power to the display driver chip and the display panel; generating a first feedback signal according to the target output voltage of the power conversion module; The first feedback signal is sent to the power supply module, wherein after receiving the first feedback signal, the power supply module supplies power to the power conversion module according to the first feedback signal.

2. The driving method according to claim 1, characterized in that: The target output voltage includes at least one of a first power supply voltage, a second power supply voltage output by the power conversion module to the display panel, and a third power supply voltage output by the power conversion module to the display driver chip; Preferably, the step of obtaining the target output voltage of the power conversion module includes: Find the power supply voltage with the largest absolute value among the first power supply voltage, the second power supply voltage and the third power supply voltage; Determine the power supply voltage with the largest absolute value as the target output voltage; Preferably, the step of sending the first feedback signal to the power supply module includes: Sending the first feedback signal to the power supply module in the form of a pulse signal; Preferably, the step of sending the first feedback signal to the power supply module in the form of a pulse signal includes: The first feedback signal is sent to the power supply module using the SWIRE communication protocol.

3. The driving method according to claim 1, characterized in that: The power supply module supplies power to the power conversion module through the mainboard, and the step of sending the first feedback signal to the power supply module includes: The first feedback signal is directly sent to the power supply module, or the first feedback signal is sent to the mainboard, wherein the mainboard sends the first feedback signal to the power supply module after receiving the first feedback signal.

4. The driving method according to claim 1, characterized in that: The power supply module supplies power to the power conversion module through the mainboard, and the step of sending the first feedback signal to the power supply module includes: Sending the first feedback signal directly to the power supply module; The method further comprises: generating a second feedback signal according to the target output voltage of the power conversion module; The second feedback signal is sent to the mainboard, wherein after receiving the second feedback signal, the mainboard outputs a voltage to the power conversion module according to the first voltage and the second feedback signal, and the first voltage is the voltage output by the power supply module to the mainboard according to the first feedback signal.

5. A driving method, characterized in that: The method is applied to a power supply end, the power supply end includes a power supply module, and the method includes: The power supply module supplies power to the power conversion module, wherein the power conversion module is used to supply power to the display driver chip and the display panel; The power supply module receives a first feedback signal sent by the display driver chip, and supplies power to the power conversion module according to the first feedback signal; After acquiring the target output voltage of the power conversion module, the display driver chip generates the first feedback signal according to the target output voltage, and sends the first feedback signal to the power supply module.

6. The driving method according to claim 5, characterized in that: The power supply end further includes a mainboard, and the power supply module supplies power to the power conversion module through the mainboard; the step of supplying power to the power conversion module according to the first feedback signal includes: The power supply module supplies power to the mainboard according to the first feedback signal; The mainboard supplies power to the power conversion module according to the first voltage output by the power supply module.

7. The driving method according to claim 6, characterized in that: The step of the mainboard supplying power to the power conversion module according to the first voltage output by the power supply module comprises: The mainboard outputs a voltage to the power conversion module according to the first voltage and the second feedback signal; After acquiring the target output voltage, the display driver chip further generates the second feedback signal according to the target output voltage, and sends the second feedback signal to the mainboard.

8. A drive system, characterized in that: The drive system comprises: A display panel, a power conversion module, a display driver chip and a power supply module, wherein the power conversion module is used to supply power to the display driver chip and the display panel; the display driver chip is used to obtain a target output voltage of the power conversion module, and generate a first feedback signal according to the target output voltage of the power conversion module, and further send the first feedback signal to the power supply module; the power supply module is used to supply power to the power conversion module according to the first feedback signal after receiving the first feedback signal.

9. An electronic device, characterized in that: The electronic device includes a processor, a memory and a communication circuit, the processor is coupled to the memory and the communication circuit respectively, the memory stores program data, and the processor implements the steps in the method as described in any one of claims 1-7 by executing the program data in the memory.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and the computer program can be executed by a processor to implement the steps in the method according to any one of claims 1 to 7.

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