Method and device for determining ghost shadow of ink screen, electronic equipment and storage medium

Abstract

The invention relates to the field of ink screens, in particular to an ink screen ghosting determination method and device, electronic equipment and a storage medium. At least one surface of the ink screen is provided with an electric field detection device. The method comprises the following steps: detecting electric field distribution of at least one surface of the ink screen; and according to the electric field distribution and the target electric field distribution, determining whether the ink screen has ghosting.

Description

Technical Field

[0001] The present disclosure relates to the field of ink screens, and more specifically, to a method, device, electronic device, and storage medium for determining image sticking on an ink screen. Background Art

[0002] Electronic ink screen, also known as electronic paper display technology (EPD), is composed of two substrates with electronic ink composed of countless tiny transparent particles on the surface. These inks are a mixture of white particles carrying positive charges and black particles carrying negative charges. When a positive voltage is applied to the two substrates, the black particles rise and the white particles sink, and the screen appears black; conversely, when a negative voltage is applied, the white particles rise and the black particles sink, and the screen turns white. What is particularly special is that once the voltage is removed, the image on the screen can remain unchanged for months. In addition, the particles of the electronic ink screen do not emit light, but reflect natural light, so it has an excellent eye protection effect.

[0003] With these excellent characteristics, electronic ink screens are widely used in electronic paper readers, ink screen tablets, educational tablets, office and learning tablets, and even displays, billboards and other occasions. However, due to various reasons, such as equipment aging, insufficient precision in applying electric fields, poor contact or the image of impurity ions, some particles are affected and deviate from the predetermined position, resulting in residual images on the display. Therefore, how to detect residual images when the electronic ink screen is refreshed has become a problem that needs to be solved urgently in this field. Summary of the invention

[0004] One purpose of the present disclosure is to provide a method for determining image afterimage on an ink screen, which can accurately identify whether image afterimage appears on the ink screen, so as to subsequently eliminate the image afterimage and improve the user experience.

[0005] According to a first aspect of the present disclosure, a method for determining image sticking on an ink screen is provided, wherein at least one surface of the ink screen is provided with an electric field detection device, and the method comprises:

[0006] Detecting the electric field distribution of at least one side of the ink screen;

[0007] Whether afterimage occurs on the ink screen is determined according to the electric field distribution and the target electric field distribution.

[0008] Optionally, detecting the electric field distribution of at least one side of the ink screen includes:

[0009] Dividing the ink screen into multiple sub-areas;

[0010] The electric field strength of each sub-area of ​​at least one side of the ink screen is detected respectively.

[0011] Optionally, the target electric field distribution includes a target electric field strength of each of the sub-areas, and determining whether the ink screen has an afterimage according to the electric field distribution and the target electric field distribution includes:

[0012] respectively determining the difference between the electric field strength of each of the sub-areas and the corresponding target electric field strength;

[0013] When the difference is greater than a preset threshold, it is determined that an afterimage occurs in the corresponding sub-area.

[0014] Optionally, after determining whether the ink screen has an afterimage, the method further includes:

[0015] When afterimage appears on the ink screen, the ink screen is controlled to be refreshed to eliminate the afterimage.

[0016] Optionally, when image sticking occurs on the ink screen, controlling the ink screen to refresh includes:

[0017] Determine the number of sub-regions where afterimages occur;

[0018] When the number of sub-areas where afterimages appear is greater than a preset number, controlling the ink screen to perform a global refresh;

[0019] When the number of sub-areas where afterimages appear is less than or equal to a preset number, the sub-areas where afterimages appear in the ink screen are controlled to be partially refreshed.

[0020] Optionally, the method further comprises:

[0021] After the ink screen is refreshed, the electric field distribution of at least one side of the ink screen is re-detected, and whether the ink screen has an afterimage is determined based on the electric field distribution and the target electric field distribution.

[0022] Optionally, the method further comprises:

[0023] Counting the first number of times the afterimage appears in each of the sub-areas and the second number of times the ink screen is refreshed within a preset time period;

[0024] When the ratio of the first number to the second number in the first sub-area is greater than a preset ratio, a message prompt is displayed on the ink screen.

[0025] According to a second aspect of the present disclosure, a device for determining image sticking on an ink screen is provided, wherein at least one surface of the ink screen is provided with an electric field detection device, and the device comprises:

[0026] A detection module, used to detect the electric field distribution of at least one side of the ink screen;

[0027] A determination module is used to determine whether the ink screen has an afterimage based on the electric field distribution and the target electric field distribution.

[0028] According to a third aspect of the present disclosure, an electronic device is provided, comprising a processor and a memory, wherein the memory stores computer instructions, and when the computer instructions are executed by the processor, the steps of any one of the methods described in the first aspect are implemented.

[0029] According to a fourth aspect of the present disclosure, there is provided a storage medium on which computer instructions are stored. When the computer instructions are executed by a processor, the steps of any one of the methods described in the first aspect are implemented.

[0030] One of the technical effects of the present disclosure is that a method for determining image afterimage on an ink screen is provided. An electric field detection device on at least one surface of the ink screen can be used to detect the electric field distribution of at least one side of the ink screen, which is equivalent to the distribution of black ink and white ink in the ink screen. Based on the distribution and the target electric field distribution, it is possible to identify whether image afterimage appears in the ink screen.

[0031] Other features and advantages of the embodiments of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the embodiments of the present disclosure.

[0033] Figure 1 is a flow chart of a method for determining ink screen image sticking provided by the present application;

[0034] Figure 2 This is a schematic diagram showing the outer surface of an ink screen according to an embodiment of the present application;

[0035] Figure 3 is a cross-sectional view of an ink screen according to an embodiment of the present application;

[0036] Figure 4 It is a structural schematic diagram of the device for determining ink screen afterimage provided in this application. DETAILED DESCRIPTION

[0037] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0038] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0039] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0040] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0041] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0042] The present application embodiment provides a method for determining ink screen afterimage. In this embodiment, the ink screen. Figure 1 As shown, the method includes steps S11-S13.

[0043] Step S11, detecting the electric field distribution of at least one side of the ink screen.

[0044] In this embodiment, an electric field detection device may be provided on at least one surface of the ink screen, such as an electric field probe, a field strength meter, a charge sensor, etc. When the ink screen displays certain content, such as Figure 2 As shown in the figure 1, since the ink balloons on both sides of the ink screen have different colors and different charges carried by the ink balloons of different colors, the electric fields generated by the ink on both sides of the ink screen will be different. Figure 3 Therefore, the electric field distribution on the outer surface, the inner surface or both surfaces of the ink screen can be detected by the electric field detection device.

[0045] Step S12, determining whether afterimage occurs on the ink screen based on the electric field distribution and the target electric field distribution.

[0046] In this embodiment, the target electric field distribution refers to the electric field distribution corresponding to the surface of the ink screen when the ink screen displays normally without afterimage. In this example, the target electric field distribution may include the electric field distribution on both sides of the ink screen. In this embodiment, the content to be displayed on the ink screen is obtained by applying an electric field between two substrates in the ink screen, and the distribution of the ink balloons on the ink screen is also known, that is, the distribution of its electric field is also known. In this example, the electric field distribution of at least one side of the ink screen detected can be compared with the target electric field distribution to determine the difference between the two. The difference is the part of the ink screen where the afterimage appears. In this way, it is determined whether the afterimage appears in the ink screen.

[0047] In this example, a method for determining image afterimage on the ink screen is provided. An electric field detection device on at least one surface of the ink screen can be used to detect the electric field distribution of at least one side of the ink screen, which is equivalent to the distribution of black ink and white ink in the ink screen. Based on the distribution and the target electric field distribution, it is possible to identify whether image afterimage appears in the ink screen.

[0048] In an example of this embodiment, detecting the electric field distribution of at least one side of the ink screen includes: dividing the ink screen into multiple sub-areas; and detecting the electric field strength of each sub-area of ​​at least one side of the ink screen respectively.

[0049] In this embodiment, when detecting the electric field distribution of at least one side of the ink screen, the ink screen is first divided into a plurality of sub-areas. The division of these sub-areas can be determined according to the detection accuracy of the electric field detection device to ensure that the electric field strength of each sub-area can be accurately measured. For example, if the electric field detection device has a high accuracy, the ink screen can be divided into smaller sub-areas to obtain more detailed electric field distribution data. In addition, the division of sub-areas can also be performed according to the number of pixels of the ink screen, and each sub-area can contain one or more pixels, so as to reflect the electric field characteristics of the ink screen as much as possible while maintaining the detection efficiency. Through such division and detection, the electric field strength of each sub-area of ​​at least one side of the ink screen, that is, the electric field distribution of at least one side of the ink screen, can be accurately obtained.

[0050] In an example of the present embodiment, the target electric field distribution includes the target electric field strength of each sub-area, and whether afterimage appears on the ink screen is determined based on the electric field distribution and the target electric field distribution, including: determining the difference between the electric field strength of each sub-area and the corresponding target electric field strength; when the difference is greater than a preset threshold, determining that afterimage appears in the corresponding sub-area.

[0051] In this embodiment, the target electric field strength of each sub-area refers to the electric field strength of the corresponding sub-area when the ink screen is displayed normally without residual images. In this example, the electric field strength of each detected sub-area can be compared with the target electric field strength of the sub-area to determine the difference between the two. Since the electric field strength is a vector and has a direction, when the residual image appears, that is, when the positions of the black and white ink balloons are opposite, most of the positive and negative charges in the sub-area will be opposite, so the electric field strength will be quite different. Therefore, the threshold of the difference in electric field strength can be set to accurately identify whether a certain area has residual images. In addition, those skilled in the art can also determine the sensitivity of adjusting residual image recognition by adjusting the size of the preset threshold. For example, when the preset threshold is set to a larger value, the electric field difference caused by the generally smaller residual image will not be determined as the case of residual image. In the above manner, it is avoided that some residual images that have little impact on the user are also refreshed in the future, affecting the user's viewing fluency.

[0052] In an example of this embodiment, after determining whether afterimage appears on the ink screen, the method further includes: if afterimage appears on the ink screen, controlling the ink screen to refresh to eliminate the afterimage.

[0053] After determining that afterimages appear on the ink screen, the electric field can be reapplied to the ink screen to refresh the displayed content. In this example, the refresh of the ink screen can be a global refresh, that is, refreshing all the content of the ink screen, or it can be a local refresh where the afterimage appears.

[0054] In an example of the present embodiment, when afterimages appear on the ink screen, the ink screen is controlled to be refreshed, including: determining the number of sub-areas where afterimages appear; when the number of sub-areas where afterimages appear is greater than a preset number, controlling the ink screen to be globally refreshed; when the number of sub-areas where afterimages appear is less than or equal to a preset number, controlling the sub-areas of the ink screen where afterimages appear to be locally refreshed.

[0055] In this embodiment, when afterimages appear on the ink screen, the number of sub-areas where afterimages appear on the ink screen can be determined first, and compared with a preset number. In this example, the preset number can be set as required, for example, it can be set to a very large value so that the ink screen is only partially refreshed when afterimages appear, or it can be set to 0 so that the ink screen is only globally refreshed. Or it can be set to other values ​​as required, so that when the number of sub-areas where afterimages appear is small, that is, less than or equal to the preset number, the sub-areas where afterimages appear on the ink screen can be controlled to be partially refreshed, which does not affect the user's viewing of content in other areas, and can save power on the ink screen device and extend its service life. When there are a large number of sub-areas with afterimages, it means that the ink bottle received a large interference during the last refresh. In order to avoid the situation where some afterimages are not recognized, a global refresh can be used to ensure a comprehensive update of the entire screen state and avoid the incomplete repair problem that may be caused by a partial refresh.

[0056] In an example of this embodiment, the method also includes: after the ink screen is refreshed, re-detecting the electric field distribution of at least one side of the ink screen, and determining whether the ink screen has an afterimage based on the electric field distribution and the target electric field distribution.

[0057] In this embodiment, after the ink screen is refreshed, steps S11 and S12 can be re-executed to confirm whether afterimages appear in the refreshed ink screen to confirm the refresh effect. At the same time, afterimages can be accurately identified when they appear after the refresh so that they can be refreshed again.

[0058] In an example of the present embodiment, the method also includes: counting the first number of afterimages that appear in each sub-area within a preset time period and the second number of ink screen refreshes; when the ratio of the first number to the second number in the first sub-area is greater than a preset ratio, displaying a message prompt on the ink screen to prompt the user that the first sub-area of ​​the ink screen needs to be repaired.

[0059] In this embodiment, when afterimages appear in any sub-area, the historical number of afterimages that appear in the area within a preset time period can also be counted, and the total number of refreshes in the sub-area can also be counted. In this example, the preset time period can be set according to actual needs, such as the past week, the past month, the past year, etc. After determining the first number and the second number, the ratio of the first number and the second number can be calculated to determine the frequency of afterimages in the sub-area. When the frequency of afterimages is greater than the threshold of the preset ratio, a message prompt can be displayed on the ink screen to prompt the user which area needs maintenance.

[0060] The embodiment of the present application provides a device 100 for determining image sticking on an ink screen. An electric field detection device is provided on at least one surface of the ink screen. Figure 4 As shown, it includes a detection module 101 for detecting the electric field distribution of at least one side of the ink screen; a determination module 102 for determining whether the ink screen has an afterimage based on the electric field distribution and the target electric field distribution.

[0061] Optionally, the detection module is specifically used to: divide the ink screen into multiple sub-areas; and respectively detect the electric field strength of each of the sub-areas on at least one side of the ink screen.

[0062] Optionally, the target electric field distribution includes a target electric field strength for each of the sub-areas, and the determination module is specifically used to: respectively determine the difference between the electric field strength of each of the sub-areas and the corresponding target electric field strength; and when the difference is greater than a preset threshold, determine that an afterimage occurs in the corresponding sub-area.

[0063] Optionally, the device further includes: a refresh module, configured to control the ink screen to refresh when an afterimage appears on the ink screen to eliminate the afterimage.

[0064] Optionally, the refresh module is specifically used to: determine the number of sub-areas where afterimages appear; when the number of sub-areas where afterimages appear is greater than a preset number, control the ink screen to perform a global refresh; when the number of sub-areas where afterimages appear is less than or equal to a preset number, control the sub-areas in the ink screen where afterimages appear to perform a local refresh.

[0065] Optionally, the detection module is also used to re-detect the electric field distribution of at least one side of the ink screen after the ink screen is refreshed; the determination module is also used to determine whether the ink screen has an afterimage based on the electric field distribution and the target electric field distribution.

[0066] Optionally, the device also includes: a statistical module, used to count the first number of afterimages that appear in each sub-area within a preset time period and the second number of refreshes of the ink screen; a prompt module, used to display a message prompt on the ink screen when the ratio of the first number to the second number in the first sub-area is greater than a preset ratio, to prompt the user that the first sub-area of ​​the ink screen needs to be repaired.

[0067] An embodiment of the present application also provides an electronic device, including a processor and a memory, wherein the memory stores computer instructions, and when the computer instructions are executed by the processor, any one of the above-mentioned ink screen afterimage determination method embodiments is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0068] An embodiment of the present application also provides a storage medium on which computer instructions are stored. When the computer instructions are executed by a processor, any one of the above-mentioned ink screen afterimage determination method embodiments is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0069] Each embodiment in the present disclosure is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device and equipment embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0070] The above describes specific embodiments of the present disclosure. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0071] The embodiments of the present disclosure may be systems, methods and / or computer program products. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the embodiments of the present disclosure.

[0072] A computer-readable storage medium may be a tangible device that can hold and store instructions used by an instruction execution device. A computer-readable storage medium may be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples of computer-readable storage media (a non-exhaustive list) include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as a punch card or a raised structure in a groove on which instructions are stored, and any suitable combination of the foregoing. As used herein, a computer-readable storage medium is not to be interpreted as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., a light pulse through a fiber optic cable), or an electrical signal transmitted through a wire.

[0073] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, optical fiber transmissions, wireless transmissions, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in the computer-readable storage medium in each computing / processing device.

[0074] The computer program instructions for performing the operation of the embodiments of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, etc., and conventional procedural programming languages ​​such as "C" language or similar programming languages. Computer-readable program instructions may be executed completely on a user's computer, partially on a user's computer, as an independent software package, partially on a user's computer, partially on a remote computer, or completely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., using an Internet service provider to connect via the Internet). In some embodiments, an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), may be personalized by utilizing the state information of a computer-readable program instruction, and the electronic circuit may execute a computer-readable program instruction, thereby realizing various aspects of the embodiments of the present disclosure.

[0075] Various aspects of the embodiments of the present disclosure are described herein with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present disclosure. It should be understood that each box in the flowchart and / or block diagram and the combination of each box in the flowchart and / or block diagram can be implemented by computer-readable program instructions.

[0076] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine, so that when these instructions are executed by the processor of the computer or other programmable data processing device, a device that implements the functions / actions specified in one or more boxes in the flowchart and / or block diagram is generated. These computer-readable program instructions can also be stored in a computer-readable storage medium, and these instructions cause the computer, programmable data processing device, and / or other equipment to work in a specific manner, so that the computer-readable medium storing the instructions includes a manufactured product, which includes instructions for implementing various aspects of the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0077] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operating steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to implement the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0078] The flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the systems, methods and computer program products according to multiple embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of an instruction, and a part of a module, a program segment or an instruction contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or the flowchart, and the combination of the boxes in the block diagram and / or the flowchart can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions. It is well known to those skilled in the art that it is equivalent to implement it by hardware, implement it by software, and implement it by combining software and hardware.

[0079] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A method for determining ink screen image sticking, characterized in that: At least one surface of the ink screen is provided with an electric field detection device, and the method comprises: Detecting the electric field distribution of at least one side of the ink screen; Whether afterimage occurs on the ink screen is determined according to the electric field distribution and the target electric field distribution.

2. The method according to claim 1, characterized in that The detecting the electric field distribution of at least one side of the ink screen comprises: Dividing the ink screen into multiple sub-areas; The electric field strength of each sub-area of ​​at least one side of the ink screen is detected respectively.

3. The method according to claim 2, characterized in that The target electric field distribution includes a target electric field strength of each of the sub-areas, and determining whether the ink screen has an afterimage according to the electric field distribution and the target electric field distribution includes: respectively determining the difference between the electric field strength of each of the sub-areas and the corresponding target electric field strength; When the difference is greater than a preset threshold, it is determined that an afterimage occurs in the corresponding sub-area.

4. The method according to claim 3, characterized in that After determining whether the ink screen has an afterimage, the method further includes: When afterimage appears on the ink screen, the ink screen is controlled to be refreshed to eliminate the afterimage.

5. The method according to claim 4, characterized in that When the ink screen has a residual image, controlling the ink screen to refresh includes: Determine the number of sub-regions where afterimages occur; When the number of sub-areas where afterimages appear is greater than a preset number, controlling the ink screen to perform a global refresh; When the number of sub-areas where afterimages appear is less than or equal to a preset number, the sub-areas where afterimages appear in the ink screen are controlled to be partially refreshed.

6. The method according to claim 4, characterized in that The method further comprises: After the ink screen is refreshed, the electric field distribution of at least one side of the ink screen is re-detected, and whether the ink screen has an afterimage is determined based on the electric field distribution and the target electric field distribution.

7. The method according to claim 3, characterized in that The method further comprises: Counting the first number of times the afterimage appears in each of the sub-areas and the second number of times the ink screen is refreshed within a preset time period; When the ratio of the first number to the second number in the first sub-area is greater than a preset ratio, a message prompt is displayed on the ink screen.

8. A device for determining ink screen image sticking, characterized in that: At least one surface of the ink screen is provided with an electric field detection device, and the method comprises: A detection module, used to detect the electric field distribution of at least one side of the ink screen; A determination module is used to determine whether the ink screen has an afterimage based on the electric field distribution and the target electric field distribution.

9. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores computer instructions, and when the computer instructions are executed by the processor, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A storage medium, characterized in that: Computer instructions are stored thereon, and when the computer instructions are executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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