Display method and device of FSD screen, equipment and medium

Abstract

The invention discloses a display method and device of an FSD screen, equipment and a medium, and relates to the technical field of display. The method is applied to an application processor in the electronic equipment, and comprises the following steps: sending layer data in an RGB format stored in any layer cache to a Blend device, and synthesizing the layer data into a complete first image in the RGB format under the condition that the Blend device receives the layer data; according to a conversion rule, the first image is converted into a second image, and the second image is a complete image in an FSC format; storing the second image in a complete image cache; and outputting the second image in the complete image cache to the FSD screen. According to the method, the display of the FSD screen can be realized on the software level, so that the DDIC does not need to have the function of converting the RGB format into the FSC format, and the limitation on the hardware type selection of the DDIC can be reduced.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically, to a display method, apparatus, device, and medium for an FSD screen. Background Technology

[0002] Currently, for electronic devices using Field Sequence Display (FSD) screens (such as AR glasses), image display is typically achieved through the collaboration of an application processor (AP) and a display driver integrated circuit (DDIC).

[0003] In the process of AP and DDIC working together to display images, for any frame of image to be displayed, AP processes the image to be displayed into an RGB format image and then transmits it to DDIC; DDIC performs relevant processing on the RGB format image, including conversion from RGB format to FSC format, to obtain an FSC format image, and further outputs the FSC format image to the display screen for display.

[0004] Based on the above, it is clear that for electronic devices using FSD displays, when selecting a DDIC, it is essential to choose one that can convert RGB format to FSC format. This adds a limitation to the selection of DDIC hardware. Summary of the Invention

[0005] One objective of this application is to provide a new technical solution for display on an FSD screen.

[0006] According to a first aspect of this application, a display method for an FSD screen is provided, applied to an application processor in an electronic device, the method comprising:

[0007] The RGB format layer data stored in any layer cache is sent to the Blend device, which, upon receiving the layer data, synthesizes the layer data into a complete RGB format first image;

[0008] According to the conversion rules, the first image is converted into a second image, which is a complete FSC format image;

[0009] Store the second image into the full image cache;

[0010] The second image in the complete image cache is output to the FSD screen.

[0011] Optionally, before storing the second image into the full image cache, the method further includes:

[0012] Request a full image cache for the second image.

[0013] Optionally, outputting the second image from the complete image buffer to the FSD screen includes:

[0014] The second image in the complete image cache is output to the FSD screen through the Blend device.

[0015] Optionally, outputting the second image from the complete image cache to the FSD screen via the Blend device includes:

[0016] The second image in the complete image cache is input to the Blend device;

[0017] The Blend device is instructed to output the second image to the FSD screen via the DSI interface upon receiving the second image.

[0018] Optionally, before converting the first image into the second image, the method further includes:

[0019] The Blend device is instructed to output the first image via the WB interface.

[0020] Optionally, requesting a complete image cache for the second image includes:

[0021] Obtain the image resolution of the first image;

[0022] Based on the image resolution of the first image, request a complete image cache for the second image.

[0023] According to a second aspect of this application, an FSD screen display device is provided, applied to an application processor in an electronic device, the device comprising:

[0024] The sending module is used to send RGB format layer data stored in any layer cache to the Blend device, wherein the Blend device, upon receiving the layer data, synthesizes the layer data into a complete RGB format first image;

[0025] The conversion module is used to convert the first image into a second image according to the conversion rules, wherein the second image is a complete FSC format image;

[0026] A storage module is used to store the second image into a complete image cache;

[0027] The output module is used to output the second image in the complete image buffer to the FSD screen.

[0028] Optionally, the device further includes:

[0029] The application module is used to apply for a complete image cache for the second image.

[0030] According to a third aspect of this application, an electronic device is provided, the electronic device comprising the means as described in any one of the second aspects; or,

[0031] It includes a memory and a processor, the memory being used to store computer instructions, and the processor being used to retrieve the computer instructions from the memory to perform the method as described in any one of the first aspects.

[0032] According to a fourth aspect of this application, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the method according to any one of the first aspects.

[0033] This application provides a display method for an FSD screen, applied to an application processor in an electronic device. The method includes: sending RGB format layer data stored in any layer cache to a blending device; the blending device, upon receiving the layer data, synthesizing the layer data into a complete RGB format first image; converting the first image into a second image according to a conversion rule, the second image being a complete FSC format image; storing the second image in a complete image cache; and outputting the second image from the complete image cache to the FSD screen. This method enables FSD screen display at the software level, eliminating the need for the DDIC (Distributed Controller Interface) to have RGB-to-FSC format conversion capabilities, thus reducing the limitations on DDIC hardware selection.

[0034] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0035] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0036] Figure 1 This is a hardware configuration outline of an electronic device for implementing a display method for an FSD screen according to an embodiment of this application. Figure 1 ;

[0037] Figure 2 This is a flowchart illustrating a method for implementing an FSD screen display according to an embodiment of this application. Figure 1 ;

[0038] Figure 3 This is a flowchart illustrating a method for implementing an FSD screen display according to an embodiment of this application. Figure 2 ;

[0039] Figure 4 This is a schematic diagram of a display device implementing an FSD screen according to an embodiment of this application;

[0040] Figure 5 This is a hardware configuration outline of an electronic device for implementing a display method for an FSD screen according to an embodiment of this application. Figure 2 . Detailed Implementation

[0041] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0042] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0043] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0044] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0045] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0046] Figure 1 This is a hardware configuration outline of an electronic device for implementing a display method for an FSD screen according to an embodiment of this application. Figure 1 .

[0047] Electronic device 1000 can be a terminal or a server. Furthermore, the terminal can be a head-mounted device (such as an AR device, MR device, XR device, and VR device), a portable computer, a tablet computer, a PDA, etc. The server can be a cloud server, etc.

[0048] Electronic device 1000 may include processor 1100, memory 1200, interface device 1300, communication device 1400, display device 1500, input device 1600, speaker 1700, microphone 1800, etc. The processor 1100 may be an application processor (AP), which may include a CPU, GPU, DPU, MCU, etc. The memory 1200 may include, for example, ROM (Read-Only Memory), RAM (Random Access Memory), or non-volatile memory such as a hard disk. The interface device 1300 may include, for example, a USB interface, a headphone jack, etc. The communication device 1400 may be capable of wired or wireless communication. The display device 1500 may be, for example, an FSD type LCD screen, a touch screen, etc. The input device 1600 may include, for example, a touch screen, a keyboard, etc. Users can input / output voice information through the speaker 1700 and microphone 1800.

[0049] Despite Figure 1 The electronic device 1000 shows multiple devices, but this application may only involve some of them. For example, electronic device 1000 may only involve memory 1200 and processor 1100.

[0050] In the embodiments applied in this application, the memory 1200 of the electronic device 1000 is used to store instructions for controlling the processor 1100 to execute the display method of the FSD screen provided in the embodiments of this application.

[0051] In the above description, those skilled in the art can design instructions based on the scheme disclosed in this application. How the instructions control the processor to operate is well known in the art, and therefore will not be described in detail here.

[0052] This application provides a display method for an FSD screen, which is applied to, for example... Figure 1 The processor in the electronic device is specifically an application processor (AP). The AP typically includes a GPU, CPU, DPU, etc., and the FSD screen display method provided in this application can be executed by at least one of the GPU, CPU, DPU, etc. in the AP.

[0053] like Figure 2 As shown, the display method of the FSD screen provided in this application includes the following steps S2100 to S2400.

[0054] Step S2100: Send the RGB format layer data stored in any layer cache to the Blend device.

[0055] The Blend device, upon receiving layer data, synthesizes the layer data into a first image in complete RGB format.

[0056] In this embodiment, for a frame of an image to be displayed, the application provides layer data for each layer of the image and stores the layer data in the cache corresponding to the AP. In this application, the cache used to store layer data is referred to as the layer cache.

[0057] In this embodiment, the AP sends the layer data in the layer cache to the Blend device. After receiving the layer data, the Blend device synthesizes the layer data to obtain a complete image in RGB format, which is denoted as the first image.

[0058] Among them, such as Figure 3 As shown, the AP includes a DPU, which in turn includes a hardware blending device. This blending device is used to synthesize RGB format layer data to obtain a complete RGB format image, which is the first image involved in this application. Furthermore, the blending device is connected to the layer cache via a DMA channel. It should be noted that... Figure 3 The example uses layer buffers Buffer_0, Buffer_1, and Buffer_2, with corresponding DMA channels pipe0, pipe1, and pipe2.

[0059] Step S2200: According to the conversion rules, the first image is converted into a second image, which is a complete FSC format image.

[0060] Specifically, the conversion rules are the rules for converting RGB format to FSC format.

[0061] In this embodiment, the AP first acquires a first image from the Blend device, and then converts the first image into a second image based on the RGB to FSC format conversion rules. This second image is a complete FSC format image.

[0062] In one embodiment of this application, the conversion rule based on RGB format to FSC format can be implemented by the CPU in the AP to convert the first image into the second image.

[0063] Step S2300: Store the second image in the complete image cache.

[0064] In this embodiment, the AP has a cache pre-allocated for the second image. This application refers to the pre-allocated cache for the second image as the complete image cache. Therefore, the FSD screen display method provided in this application further includes the following step S2310 before the aforementioned step S2300.

[0065] Step S2310: Request a complete image cache for the second image.

[0066] It should be noted that a complete image cache can be requested for the second image through the traditional cache request method. This application does not limit the specific implementation of the above step S2310.

[0067] In one embodiment of this application, in order to ensure that the complete image cache can cache the second image without causing cache waste, the above step S2310 is specifically implemented through the following steps S2310-1 and S2310-2.

[0068] Step S2310-1: Obtain the image resolution of the first image.

[0069] Step S2310-2: Based on the image resolution of the first image, request a complete image cache for the second image.

[0070] In this embodiment, taking the first image with a resolution of a*b as an example, according to the conversion rules from RGB format to FSC format, the image resolution of the second image is determined to be a*3b, and each pixel in the second image occupies 1 byte. Based on this, a cacheable image resolution of a*3b is allocated for the second image, with each pixel occupying 1 byte.

[0071] After obtaining the second image based on the above step S2300, the second image is stored in the complete image cache.

[0072] Step S2400: Output the second image from the complete image buffer to the FSD screen.

[0073] Since the second image is a complete FSC format image, it is suitable for the display requirements of an FSD screen. Therefore, the second image in the complete image buffer can be directly output to the FSD screen.

[0074] Based on the above steps S2100 to S2400, the display of the FSD screen can be realized at the software level. In this way, the DDIC does not need to have the function of converting from RGB format to FSC format, which can reduce the restrictions on the hardware selection of the DDIC.

[0075] This application provides a display method for an FSD screen, applied to an application processor in an electronic device. The method includes: sending RGB format layer data stored in any layer cache to a blending device; the blending device, upon receiving the layer data, synthesizing the layer data into a complete RGB format first image; converting the first image into a second image according to a conversion rule, the second image being a complete FSC format image; storing the second image in a complete image cache; and outputting the second image from the complete image cache to the FSD screen. This method enables FSD screen display at the software level, eliminating the need for the DDIC (Distributed Controller Interface) to have RGB-to-FSC format conversion capabilities, thus reducing the limitations on DDIC hardware selection.

[0076] In one embodiment of this application, step S2400 can be specifically implemented by step S2410.

[0077] In step S2410, the second image in the complete image buffer is output to the FSD screen through the Blend device.

[0078] In this embodiment, since the Blend device can be directly connected to the cache, therefore, as Figure 3 As shown, when outputting the second image from the complete image buffer to the FSD screen via the Blend device, only the existing DMA channel between the Blend device and the buffer needs to be used, without setting up an additional channel between the complete image buffer and the FSD screen. This reduces the implementation difficulty of the FSD screen display method provided in this application.

[0079] It should be noted that, Figure 3 The complete image buffer is represented by Buffer_FSD, and Buffer_FSD is connected to the Blend device via pipe4 in the DMA channel.

[0080] In one embodiment of this application, step S2410 can be specifically implemented by the following steps S2410-1 and S2410-2.

[0081] Step S2410-1: Input the second image from the complete image buffer into the Blend device.

[0082] Step S2410-2 instructs the Blend device to output the second image to the FSD screen via the DSI interface upon receiving the second image.

[0083] In this embodiment, for one image display cycle, the Blend device recognizes the image data as layer data when it receives the image data for the first time, and recognizes it as the second image when it receives the image data for the second time.

[0084] And, such as Figure 3 As shown, the DPU is equipped with a DSI (Display Serial Interface) interface, and the Blend device is connected to the FSD screen through the DSI interface. Therefore, by instructing the Blend device to output the second image to the FSD screen through the DSI interface upon receiving the second image, there is no need to set up an additional interface on the DPU. This further reduces the implementation difficulty of the FSD screen display method provided in this application.

[0085] In one embodiment of this application, the display method of the FSD screen provided in this application further includes the following step S2210 before the above step S2200.

[0086] Step S2210: Instruct the Blend device to output the first image through the WB interface.

[0087] In this embodiment, as Figure 3 As shown, the DPU is equipped with a WB (Write Buffer) interface. This application can instruct the Blend device to output the first image from the WB interface by reusing the WB interface. This avoids setting up additional interfaces on the DPU, thereby further reducing the implementation difficulty of the FSD screen display method provided in this application.

[0088] Based on the above embodiments, in one embodiment of this application, for example... Figure 3 The AP structure shown, taking an image to be displayed as having three layers (layer data 1, layer data 2, and layer data 3) as an example, specifically includes the following steps in the display method of the FSD display screen provided in this application:

[0089] For a frame of image to be displayed, the RGB format layer data 1 provided by the application is stored in the corresponding layer buffer Buffer_0, the RGB format layer data 2 is stored in the corresponding layer buffer Buffer_1, and the RGB format layer data 3 is stored in the corresponding layer buffer Buffer_2.

[0090] The RGB format layer data 1 stored in layer buffer_0 is sent to the Blend device through DMA channel pipe0; the RGB format layer data 2 stored in layer buffer_1 is sent to the Blend device through DMA channel pipe1; and the RGB format layer data 3 stored in layer buffer_2 is sent to the Blend device through DMA channel pipe2. The Blend device then combines layer data 1, layer data 2, and layer data 3 into a first image.

[0091] The CPU reads the first image through the WB interface, converts the first image into the second image, and stores it in the complete image buffer Buffer_3 that was previously allocated for the second image.

[0092] The image in the complete image buffer is input back into the Blend device via pipe3 in the DMA channel;

[0093] The Blend device is instructed to output the second image to the FSD screen via the DSI interface after receiving the second image.

[0094] Based on the above steps, it can be seen that the FSD screen display method provided in this embodiment can be implemented solely through software.

[0095] As can be seen from the above steps, in the FSD screen display method provided in this application, by redesigning at the software level, such as... Figure 3 Based on the pipeline with medium-thick arrows, implement AP support for FSD screens.

[0096] This application also provides an FSD screen display device 400, used in an application processor in an electronic device, such as... Figure 4 As shown, the device includes:

[0097] The sending module 410 is used to send RGB format layer data stored in any layer cache to the Blend device, wherein the Blend device, upon receiving the layer data, synthesizes the layer data into a complete RGB format first image;

[0098] The conversion module 420 is used to convert the first image into a second image according to the conversion rules, wherein the second image is a complete FSC format image;

[0099] Storage module 430 is used to store the second image into a complete image cache;

[0100] Output module 440 is used to output the second image in the complete image buffer to the FSD screen.

[0101] In one embodiment of this application, the device 400 further includes:

[0102] The application module is used to apply for a complete image cache for the second image.

[0103] In one embodiment of this application, the output module 440 is specifically used to output the second image in the complete image cache to the FSD screen through the Blend device.

[0104] In one embodiment of this application, the output module 440 is specifically used to input the second image in the complete image cache to the Blend device;

[0105] The Blend device is instructed to output the second image to the FSD screen via the DSI interface upon receiving the second image.

[0106] In one embodiment of this application, the FSD screen display device 400 provided in this application further includes:

[0107] The acquisition module is used to instruct the Blend device to output the first image through the WB interface.

[0108] In one embodiment of this application, the application module is specifically used to: obtain the image resolution of the first image;

[0109] Based on the image resolution of the first image, request a complete image cache for the second image.

[0110] This application also provides an electronic device 500, which includes a display device 400 with an FSD screen as provided in any of the above-described device embodiments;

[0111] Or, such as Figure 5 As shown, the electronic device 500 includes a memory 510 and a processor 520. The memory 510 is used to store computer instructions, and the processor 520 is used to retrieve the computer instructions from the memory 510 to execute any of the methods provided in the above method embodiments.

[0112] This application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method described in any of the above-described method embodiments.

[0113] This application may be a system, method, and / or computer program product. A computer program product may include a computer-readable storage medium having computer-readable program instructions loaded thereon for causing a processor to implement various aspects of this application.

[0114] Computer-readable storage media can be tangible devices capable of holding and storing instructions for use by an instruction execution device. Computer-readable storage media can be, for example—but not limited to—electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital multifunction disc (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or recessed protrusions storing instructions thereon, and any suitable combination thereof. The computer-readable storage media used herein are not to be construed as transient signals themselves, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., light pulses through fiber optic cables), or electrical signals transmitted through wires.

[0115] The computer-readable program instructions described herein can be downloaded from computer-readable storage media to various computing / processing devices, or downloaded via a network, such as the Internet, local area network, wide area network, and / or wireless network, to an external computer or external storage device. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. A network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards them to the computer-readable storage media in the respective computing / processing device.

[0116] The computer program instructions used to perform the operations of this application may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent 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 the "C" language or similar programming languages. The computer-readable program instructions may be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving 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., via the Internet using an Internet service provider). In some embodiments, electronic circuits, such as programmable logic circuits, field-programmable gate arrays (FPGAs), or programmable logic arrays (PLAs), are personalized by utilizing state information from the computer-readable program instructions. These electronic circuits can execute the computer-readable program instructions to implement various aspects of this application.

[0117] Various aspects of this application are described herein with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-readable program instructions.

[0118] 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 apparatus to produce a machine such that, when executed by the processor of the computer or other programmable data processing apparatus, they create means for implementing the functions / actions specified in one or more blocks of the flowchart and / or block diagram. These computer-readable program instructions can also be stored in a computer-readable storage medium that causes a computer, programmable data processing apparatus, and / or other device to operate in a particular manner; thus, the computer-readable medium storing the instructions comprises an article of manufacture that includes instructions for implementing aspects of the functions / actions specified in one or more blocks of the flowchart and / or block diagram.

[0119] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device to cause a series of operational steps to be 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 perform the functions / actions specified in one or more boxes of a flowchart and / or block diagram.

[0120] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of an instruction containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions. It will be well known to those skilled in the art that implementation in hardware, implementation in software, and implementation using a combination of software and hardware are equivalent.

[0121] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technical improvements to the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein. The scope of this application is defined by the appended claims.

Claims

1. A display method for an FSD screen, characterized in that, The method, applied to an application processor in an electronic device, includes: The RGB format layer data stored in any layer cache is sent to the Blend device, which, upon receiving the layer data, synthesizes the layer data into a complete RGB format first image; According to the conversion rules, the first image is converted into a second image, which is a complete FSC format image; Store the second image into the full image cache; The second image in the complete image cache is output to the FSD screen.

2. The method according to claim 1, characterized in that, Before storing the second image into the full image cache, the method further includes: Request a full image cache for the second image.

3. The method according to claim 1, characterized in that, The step of outputting the second image from the complete image cache to the FSD screen includes: The second image in the complete image cache is output to the FSD screen through the Blend device.

4. The method according to claim 3, characterized in that, The step of outputting the second image from the complete image cache to the FSD screen via the Blend device includes: The second image in the complete image cache is input to the Blend device; The Blend device is instructed to output the second image to the FSD screen via the DSI interface upon receiving the second image.

5. The method according to claim 1, characterized in that, Before converting the first image into the second image, the method further includes: The Blend device is instructed to output the first image via the WB interface.

6. The method according to claim 2, characterized in that, The step of requesting a complete image cache for the second image includes: Obtain the image resolution of the first image; Based on the image resolution of the first image, request a complete image cache for the second image.

7. A display device with an FSD screen, characterized in that, An application processor used in an electronic device, the device comprising: The sending module is used to send RGB format layer data stored in any layer cache to the Blend device, wherein the Blend device, upon receiving the layer data, synthesizes the layer data into a complete RGB format first image; The conversion module is used to convert the first image into a second image according to the conversion rules, wherein the second image is a complete FSC format image; A storage module is used to store the second image into a complete image cache; The output module is used to output the second image in the complete image buffer to the FSD screen.

8. The apparatus according to claim 7, characterized in that, The device further includes: The application module is used to apply for a complete image cache for the second image.

9. An electronic device, characterized in that, The electronic device includes the apparatus as described in claim 7 or 8; or... The electronic device includes a memory and a processor, the memory being used to store computer instructions, and the processor being used to retrieve the computer instructions from the memory to perform the method as described in any one of claims 1-6.

10. A computer-readable storage medium, characterized in that, It stores a computer program that, when executed by a processor, implements the method according to any one of claims 1-6.

Images