WO2024078172A1 - Procédé et appareil d'affichage d'écran, dispositif, et support de stockage lisible - Google Patents

Procédé et appareil d'affichage d'écran, dispositif, et support de stockage lisible Download PDF

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Publication number
WO2024078172A1
WO2024078172A1 PCT/CN2023/115778 CN2023115778W WO2024078172A1 WO 2024078172 A1 WO2024078172 A1 WO 2024078172A1 CN 2023115778 W CN2023115778 W CN 2023115778W WO 2024078172 A1 WO2024078172 A1 WO 2024078172A1
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WO
WIPO (PCT)
Prior art keywords
screen
hdmi
screen display
output mode
target
Prior art date
Application number
PCT/CN2023/115778
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English (en)
Chinese (zh)
Inventor
孙学彬
Original Assignee
西安广和通无线软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 西安广和通无线软件有限公司 filed Critical 西安广和通无线软件有限公司
Publication of WO2024078172A1 publication Critical patent/WO2024078172A1/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4063—Device-to-bus coupling
    • G06F13/4068—Electrical coupling
    • G06F13/4081—Live connection to bus, e.g. hot-plugging
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/3003—Monitoring arrangements specially adapted to the computing system or computing system component being monitored
    • G06F11/3041—Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system component is an input/output interface
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display

Definitions

  • the present application relates to the field of computer application technology, and in particular to a screen display method, device, equipment and readable storage medium.
  • Dual-screen display means that one host can connect to two monitors at the same time and display different screens.
  • bank window operations and customs verification windows require one end to be used by operators and the other end to be viewed by clients.
  • different users have different display requirements on the terminal.
  • even the same user has different display requirements for the terminal under different requirements. That is, it is necessary to switch between single-screen display and dual-screen display.
  • the single- and dual-screen display switching solution is implemented through software settings, which requires manual switching and cannot completely remove the dual-screen display framework solution, so there is a problem of frame rate transmission speed reduction caused by dual-screen display.
  • the dual-screen display framework when only a single screen is connected, there will be too much GPU and system resources and power consumption.
  • a screen display method, apparatus, device and readable storage medium are provided.
  • the single and dual-screen display modes can be freely switched through hardware trigger conditions. Not only is the switching free, but the frame rate transmission speed drop problem caused by relying on the dual-screen display framework can also be avoided, as well as the problem of excessive GPU and system resources and power consumption when only a single screen is connected.
  • a screen display method comprising:
  • outputting a video signal to a target screen corresponding to the current output mode includes:
  • the video signal is output to the target screen using the output channel corresponding to the target screen.
  • monitoring the HDMI interface includes:
  • the HDMI interface is monitored using a conversion chip.
  • outputting a video signal to a target screen corresponding to the current output mode includes:
  • the target screen is a screen in an HDMI device, converting the video signal into an HDMI signal using the conversion chip;
  • the HDMI signal is sent to an HDMI interface of the HDMI device.
  • a possible implementation also includes:
  • the screen display properties are modified.
  • using the screen display attribute to switch the single-screen and double-screen output modes includes:
  • the target output mode is determined as the current output mode.
  • querying the screen display attribute to determine the target output mode hit by the HDMI hot plug event includes:
  • HDMI hot plug event is an HDMI hot plug event
  • the dual screen output mode or the HDMI screen output mode in the screen display attribute is hit
  • the single-screen output mode is selected.
  • a screen display device comprising:
  • Interface monitoring module used to monitor the HDMI interface
  • the attribute reading module is used to read the screen display attributes after detecting the HDMI hot plug event
  • a display switching module used to switch the output mode of single screen or double screen by using the screen display attributes
  • the display output module is used to output video signals to the target screen corresponding to the current output mode.
  • An electronic device comprising:
  • a processor is used to implement the steps of the above-mentioned screen display method when executing the computer program.
  • a readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the above-mentioned screen display method are implemented.
  • the method provided in the embodiment of the present application is applied to monitor the HDMI interface; after detecting the HDMI hot plug event, the screen display properties are read; the single-screen and double-screen output modes are switched using the screen display properties; and the video signal is output to the target screen corresponding to the current output mode.
  • a computer program product includes a computer program or a computer code, and when the computer program product is run on a computer, the screen display method is executed.
  • FIG1 is a flowchart of an implementation method of a screen display method in an embodiment of the present application.
  • FIG2 is a schematic diagram of a specific implementation of a screen display method in an embodiment of the present application.
  • FIG3 is a schematic structural diagram of a screen display device in an embodiment of the present application.
  • FIG4 is a schematic diagram of the structure of an electronic device in an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a specific structure of an electronic device in an embodiment of the present application.
  • FIG. 1 is a flow chart of a screen display method in an embodiment of the present application, the method comprising the following steps:
  • the HDMI (High Definition Multimedia Interface) interface is a fully digital video and sound transmission interface that can send uncompressed audio and video signals.
  • the HDMI interface allows hot-plugging (hot-plugging or Hot Swap), that is, hot plugging.
  • the hot-plugging function allows users to plug or unplug without shutting down the system or cutting off the power.
  • the HDMI interface is monitored, that is, whether a device is plugged into the HDMI interface or whether a plugged-in device is unplugged.
  • the original MIPI (Mobile Industry Processor Interface) display output solution can be added with a conversion chip from the hardware to increase the HDMI output. That is to say, in a specific implementation of the present application, step S101 monitors the HDMI interface, including: using the conversion chip to monitor the HDMI interface. Among them, the conversion chip completes the conversion from MIPI to HDMI.
  • MIPI Mobile Industry Processor Interface
  • the HDMI hot plug event includes an HDMI hot plug event and an HDMI hot pull event, that is, corresponding to the HDMI interface inserting a device or unplugging a device.
  • different single-screen and dual-screen output modes can be preset, and different trigger conditions can be set, and the output mode and trigger conditions are written into the screen display properties.
  • the screen display properties specify which output mode corresponds to which situation. For example, after HDMI is hot-unplugged, the output mode is single-screen output; after HDMI is hot-plugged, the input mode is dual-screen output.
  • the corresponding conditions of the specific output mode can be set according to actual needs, and they are not listed here one by one.
  • the screen display properties can be read to clarify the current output mode.
  • the single-screen and dual-screen display properties may also be adjusted, and the specific implementation process includes:
  • Step 1 Receive and parse the single-screen or double-screen output setting request to obtain the single-screen or double-screen output setting;
  • Step 2 Modify the screen display properties according to the single or double row output settings.
  • the screen display properties can be modified through the single-screen and dual-screen output setting request.
  • the single-screen and dual-screen output setting request can indicate which specific situations different output modes correspond to; the corresponding trigger conditions for enabling a certain output mode can also be modified.
  • the single-screen and dual-screen output settings can be obtained through parsing.
  • the screen display output can be modified/updated. What specific settings or modifications to make can be determined according to actual needs, and will not be repeated here.
  • step S103 For details on how to determine the current output mode, please refer to step S103.
  • the current output mode can be determined based on the screen display properties, that is, the switching of the single-screen and dual-screen output modes can be completed. For example, at 8:00, the output mode of the single-screen and dual-screen is dual-screen output. At 8:02, an HDMI hot plug event is detected, and the HDMI hot plug event is specifically an HDMI hot plug event. After reading the display properties, according to the provisions of the screen display properties, the HDMI hot plug event corresponds to a single-screen display. At this time, the dual-screen output needs to be switched to a single-screen output.
  • step S103 uses screen display properties to switch between single and double screen output modes, including:
  • Step 1 query the screen display properties and determine the target output mode hit by the HDMI hot plug event
  • Step 2 Determine the target output mode as the current output mode.
  • the screen display attribute can be queried to determine the target output mode hit by the HDMI hot plug event.
  • step 1 queries the screen display properties to determine the target output mode hit by the HDMI hot plug event, including:
  • the HDMI hot plug event can hit the dual-screen output mode or the HDMI screen output mode.
  • the screen display properties can be set to the dual-screen output mode or the HDMI screen output mode.
  • the HDMI hot plug event can hit the single screen output mode.
  • the single screen output mode can be set accordingly in the screen display properties.
  • the target output mode can be directly determined as the current output mode. It should be noted that in the present application, before the target output mode is determined as the current output mode, the target output mode can be the same as the current output mode. In other words, before the HDMI hot plug event is detected, and after the single-screen and double-screen display switching is triggered based on the HDMI hot plug event, the same display output mode can be used. That is, by setting the screen display properties, the HDMI hot plug event can be made not to affect the specific display output mode.
  • the video signal can be output to the target screen corresponding to the current output mode.
  • the video signal is output to the screen corresponding to the current output mode.
  • the video signals output to the two screens can be the same or different. That is, when dual-screen display is used, the two screens can display the same content or different content.
  • step S104 outputs a video signal to a target screen corresponding to the current output mode, including:
  • Step 1 Determine the target screen corresponding to the current output mode
  • Step 2 Use the output channel corresponding to the target screen to output the video signal to the target screen.
  • the target screen determines the target screen corresponding to the current output mode. For example, when the output mode is dual-screen, there are two corresponding target screens, one is the display screen of the device/terminal itself, and the other is an external display screen; when the output mode is single-screen, the corresponding target screen is 1, at this time, the target screen can be the display screen of the device/terminal itself or an external display screen.
  • the specific display screen can be determined according to the specific settings.
  • the single-screen output can be divided into HDMI single-screen output mode (or external single-screen output mode) and MIPI single-screen output mode (or local single-screen output mode). In this way, the target screen can be determined only by the specific single-screen output mode.
  • step S104 outputs a video signal to a target screen corresponding to the current output mode, including:
  • Step 1 If the target screen is a screen in an HDMI device, a conversion chip is used to convert the video signal into an HDMI signal;
  • Step 2 Send HDMI signal to the HDMI interface of the HDMI device.
  • the conversion chip can be used to convert the video signal into an HDMI signal, and then the HDMI signal is sent to the HDMI interface of the HDMI device, so that the screen in the HDMI device can display content based on the received signal.
  • the method provided in the embodiment of the present application is applied to monitor the HDMI interface; after detecting the HDMI hot plug event, the screen display properties are read; the single-screen and double-screen output modes are switched using the screen display properties; and the video signal is output to the target screen corresponding to the current output mode.
  • the HDMI interface is monitored. Since the HDMI interface allows hot plugging, when an HDMI hot plug event is detected, the screen display properties can be read, and the screen display properties can be used to switch the output mode of the single or double screen. Then, the video signal is output to the target screen corresponding to the current output mode. That is, in the present application, the triggering of switching the output mode of the single or double screen is based on the HDMI hot plug event corresponding to the HDMI interface, and after determining the current output mode, the video signal is transmitted to the target screen.
  • the present application can freely switch the single or double screen display mode through hardware trigger conditions without relying on the dual-screen display framework, which not only realizes the freedom of switching between single and double screen displays, but also avoids the problem of frame rate transmission speed drop due to dependence on the dual-screen display framework, as well as the problem of excessive GPU and system resources and power consumption when only a single screen is connected.
  • the screen display method is described in detail below with reference to a specific application scenario as an example.
  • FIG. 2 is a schematic diagram of a specific implementation of a screen display method in an embodiment of the present application.
  • the original MIPI display (not hot-swappable) output solution is changed to add a conversion chip in hardware to increase HDMI output.
  • the dual-screen display function can be modified to switch between single and dual screens through system configurable properties. By obtaining system events of HDMI device plugging and unplugging, the system configurable properties can be dynamically set, thereby realizing a dynamic switching solution for single and dual screen display.
  • the system layer monitoring program is used to monitor the HDMI peripheral plug-in and unplug events reported by the bottom layer and modify the system configuration properties
  • the HAL layer single- and dual-screen display SO library is used to actually control the display logic SO library file, and its main function is to switch between single-screen display and dual-screen display according to the system configuration properties
  • MIPI output channel is a data information transmission interface for hardware display devices
  • MIPI to HDMI control IC is a control IC circuit that converts MIPI output signals into HDMI output signals
  • HDMI interface and screen is a plug-and-play display output interface.
  • the terminal can freely switch between single and dual-screen display modes through hardware trigger conditions. It can realize single-screen display scenarios, completely stripping away the dual-screen display framework, and getting rid of the frame rate transmission speed drop problem caused by dual-screen display. It can avoid excessive GPU and system resource and power consumption when only a single screen is connected without firmware modification (dual-screen display). Add software settings to manually switch between single and dual-screen solutions; when hardware triggers dynamic switching between single and dual screens, the display function takes effect immediately and remains effective after restart.
  • Example 1 A mobile terminal device manufactured using a module based on the Android system has only a single-screen display requirement during daily operation, but requires an external HDMI display device for multi-party demonstration in scenarios such as extended demonstration.
  • the screen display method provided in the embodiment of the present application is applied to the mobile terminal device, so that only a single-screen display is required during daily operation of the device, and an external HDMI display device is required for multi-party demonstration in scenarios such as extended demonstration.
  • Example 2 For any single-screen display device based on the Android system, after applying the screen display method provided in the embodiment of the present application, dynamic expansion support for HDMI interface display is performed. There is no need to modify the software firmware to support different MIPI devices, and the compatibility is stronger.
  • Example 3 An aircraft controller manufactured using a module based on the Android system, after applying the screen display method provided in the embodiment of the present application, under the condition of firmware supporting dual-screen display, the performance of image transmission, display, etc. is optimized to solve the problem of lag.
  • the screen display method provided in the embodiment of the present application is based on the display framework of the Android system, relying on the expansion of the underlying output to achieve dual-screen display, and at the same time, through the plug-and-play function of the HDMI hardware and the ability to trigger plug-in and pull-out events, it solves the problem that the MIPI interface cannot be hot-plugged and the single and dual-screen displays cannot be dynamically switched.
  • the dual-screen display can be applied to more scenarios, such as the need for single and dual-screen display switching control, the need to connect the HDMI interface output display under specific circumstances, and other scenarios; and the dual-screen software has been system optimized when there is only a single screen.
  • the embodiment of the present application further provides a screen display device.
  • the screen display device described below and the screen display method described above can refer to each other.
  • the device includes the following modules:
  • the interface monitoring module 101 is used to monitor the HDMI interface
  • the attribute reading module 102 is used to read the screen display attributes after detecting the HDMI hot plug event
  • Display switching module 103 used to switch the output mode of single screen or double screen by using the screen display attribute
  • the display output module 104 is used to output the video signal to the target screen corresponding to the current output mode.
  • the device provided in the embodiment of the present application is used to monitor the HDMI interface; after detecting the HDMI hot plug event, the screen display properties are read; the single-screen and double-screen output modes are switched using the screen display properties; and the video signal is output to the target screen corresponding to the current output mode.
  • the HDMI interface is monitored. Since the HDMI interface allows hot plugging, when an HDMI hot plug event is detected, the screen display properties can be read, and the screen display properties can be used to switch the output mode of the single or double screen. Then, the video signal is output to the target screen corresponding to the current output mode. That is, in the present application, the triggering of switching the output mode of the single or double screen is based on the HDMI hot plug event corresponding to the HDMI interface, and after determining the current output mode, the video signal is transmitted to the target screen.
  • the present application can freely switch the single or double screen display mode through hardware trigger conditions without relying on the dual-screen display framework, which not only realizes the freedom of switching between single and double screen displays, but also avoids the problem of frame rate transmission speed drop due to dependence on the dual-screen display framework, as well as the problem of excessive GPU and system resources and power consumption when only a single screen is connected.
  • the display output module 104 is specifically used to determine the target screen corresponding to the current output mode
  • the interface monitoring module 101 is specifically configured to monitor the HDMI interface using a conversion chip.
  • the display output module 104 is specifically used to convert the video signal into an HDMI signal using a conversion chip if the target screen is a screen in an HDMI device;
  • HDMI port that sends HDMI signals to HDMI devices.
  • the property setting module is used to receive and parse the single-screen and double-screen output setting request to obtain the single-screen and double-screen output settings;
  • the display switching module 103 is specifically used to query the screen display attribute and determine the target output mode hit by the HDMI hot plug event;
  • the display switching module 103 is specifically used to hit the dual-screen output mode or the HDMI screen output mode in the screen display attribute if the HDMI hot plug event is an HDMI hot plug event;
  • the single-screen output mode is hit.
  • Each module in the above device can be implemented in whole or in part by software, hardware and a combination thereof.
  • Each module can be embedded in or independent of the processor in the communication module in the form of hardware, or can be stored in the memory in the communication module in the form of software, so that the processor can call and execute the operations corresponding to each of the above units.
  • an embodiment of the present application further provides an electronic device, and the electronic device described below and the screen display method described above can refer to each other.
  • the electronic device includes:
  • the processor 322 is used to implement the steps of the screen display method of the above method embodiment when executing the computer program.
  • FIG. 5 is a schematic diagram of the specific structure of an electronic device provided in this embodiment.
  • the electronic device may have relatively large differences due to different configurations or performances, and may include one or more processors (central processing units, CPU) 322 (for example, one or more processors) and a memory 332, and the memory 332 stores one or more computer applications 342 or data 344.
  • the memory 332 can be a temporary storage or a permanent storage.
  • the program stored in the memory 332 may include one or more modules (not shown in the figure), and each module may include a series of instruction operations in the data processing device.
  • the central processing unit 322 can be configured to communicate with the memory 332 to execute a series of instruction operations in the memory 332 on the electronic device 301.
  • the electronic device 301 may further include one or more power supplies 326 , one or more wired or wireless network interfaces 350 , one or more input and output interfaces 358 , and/or one or more operating systems 341 .
  • the steps in the screen display method described above can be implemented by the structure of the electronic device.
  • the embodiment of the present application further provides a readable storage medium.
  • the readable storage medium described below and the screen display method described above can refer to each other.
  • a readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the screen display method of the above method embodiment are implemented.
  • the readable storage medium may specifically be a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other readable storage media that can store program codes.
  • the embodiment of the present application also provides a computer program product.
  • the above computer program product runs on a processor, the method shown in the above method embodiment can be implemented.

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  • General Engineering & Computer Science (AREA)
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Abstract

La présente demande concerne un procédé et un appareil d'affichage d'écran, un dispositif et un support de stockage lisible. Le procédé consiste à : surveiller une interface multimédia haute définition (HDMI) ; lors de la détection d'un événement de branchement à chaud HDMI, lire un attribut d'affichage d'écran ; commuter un mode de sortie à écran unique/double à l'aide de l'attribut d'affichage d'écran ; et délivrer un signal vidéo à un écran cible correspondant au mode de sortie actuel.
PCT/CN2023/115778 2022-10-12 2023-08-30 Procédé et appareil d'affichage d'écran, dispositif, et support de stockage lisible WO2024078172A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202211246348.XA CN115617294A (zh) 2022-10-12 2022-10-12 一种屏幕显示方法、装置、设备及可读存储介质
CN202211246348.X 2022-10-12

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WO2024078172A1 true WO2024078172A1 (fr) 2024-04-18

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Publication number Priority date Publication date Assignee Title
CN115617294A (zh) * 2022-10-12 2023-01-17 西安广和通无线软件有限公司 一种屏幕显示方法、装置、设备及可读存储介质

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CN108427544A (zh) * 2017-02-15 2018-08-21 深圳市掌网科技股份有限公司 一种单双屏应用切换方法以及接口
CN111309277A (zh) * 2020-02-27 2020-06-19 山东超越数控电子股份有限公司 一种计算机屏幕切换工作模式切换方法及系统
CN112242122A (zh) * 2020-10-09 2021-01-19 北京如影智能科技有限公司 一种基于安卓系统的双屏显示方法、装置及系统
CN113448382A (zh) * 2020-03-27 2021-09-28 华为技术有限公司 多屏幕显示电子设备和电子设备的多屏幕显示方法
CN115617294A (zh) * 2022-10-12 2023-01-17 西安广和通无线软件有限公司 一种屏幕显示方法、装置、设备及可读存储介质

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CN108427544A (zh) * 2017-02-15 2018-08-21 深圳市掌网科技股份有限公司 一种单双屏应用切换方法以及接口
CN111309277A (zh) * 2020-02-27 2020-06-19 山东超越数控电子股份有限公司 一种计算机屏幕切换工作模式切换方法及系统
CN113448382A (zh) * 2020-03-27 2021-09-28 华为技术有限公司 多屏幕显示电子设备和电子设备的多屏幕显示方法
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CN115617294A (zh) * 2022-10-12 2023-01-17 西安广和通无线软件有限公司 一种屏幕显示方法、装置、设备及可读存储介质

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