WO2023230765A1

WO2023230765A1 - Screen information synchronization method and system

Info

Publication number: WO2023230765A1
Application number: PCT/CN2022/095979
Authority: WO
Inventors: 冯峰
Original assignee: 京东方科技集团股份有限公司
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2023-12-07
Also published as: CN117480487A

Abstract

The present invention relates to the technical field of display, and provides a screen information synchronization method and system. The screen information synchronization system comprises a first display device and a second display device; the first display device is communicatively connected to the second display device; the second display device is used for sending description information of a target event to the first display device; and the first display device is used for receiving the description information of the target event sent by the second display device, and executing a synchronization operation according to the description information. The technical solution of the present invention can achieve cooperation between multiple display devices.

Description

Screen information synchronization method and system

Technical field

The present disclosure relates to the field of display technology, and in particular, to a screen information synchronization method and system.

Background technique

Some scenarios require the use of two or more display devices together. In this case, the content of different display devices needs to be shared and cross-device operations are required. In related technologies, multiple display devices are connected through hardware, but additional hardware devices are required and physical wiring is required, which results in relatively high implementation costs.

Contents of the invention

The technical problem to be solved by this disclosure is to provide a screen information synchronization method and system, which can easily realize the cooperation of multiple display devices.

In order to solve the above technical problems, embodiments of the present disclosure provide the following technical solutions:

On the one hand, a screen information synchronization system is provided, including a first display device and a second display device, and the first display device and the first display device are communicatively connected,

The second display device is configured to send description information of the target event to the first display device;

The first display device is configured to receive the description information of the target event sent by the second display device, and perform a synchronization operation according to the description information.

In some embodiments, the first display device is connected to the second display device through wireless communication.

In some embodiments, the first display device is further configured to send a subscription request to the second display device, indicating to obtain the description information of the target event;

The second display device is also configured to receive the subscription request.

In some embodiments, the second display device is further configured to send a list of target events to the first display device, where the list of target events includes an identification of at least one target event;

The first display device is also configured to receive the list.

In some embodiments, the description information of the target event includes at least one of the following:

The source display device indicates the sender of the description information;

The target display device indicates the recipient of the description information;

type of data;

data priority;

Data length;

Data content.

In some embodiments, the display description information includes data type and data priority;

The first display device is used to arrange the description information according to data type, obtain multiple data queues, and sort the multiple data queues according to the priority of the data type; in each of the data queues , sort the description information according to the priority of data; perform synchronization operations according to the description information in the order of the description information in the data queue.

In some embodiments, the target event includes a user triggering a click operation on an application icon of the first display device,

The second display device is specifically configured to display the application icon of the first display device on a display interface, receive a user's click operation instruction for the application icon, generate the description information according to the click operation instruction, and convert the The description information is sent to the first display device;

The first display device is specifically configured to open an interface of an application corresponding to the application icon according to the description information;

The first display device is also configured to feed back the status information of the application to the second display device;

The second display device is further configured to mark the application icon as opened according to the status information.

In some embodiments, the target event includes a user triggering an input operation on the second display device, and the description information of the target event includes the content input by the input operation;

The second display device is specifically configured to display the content input by the input operation on its own display interface, generate the description information according to the input content, and send the description information to the first display device;

The first display device is specifically configured to receive the description information and synchronously display the content input by the input operation on its own display interface.

In some embodiments, the content input by the input operation is the user's handwriting.

In some embodiments, the target event includes the user triggering a playback operation on the first target media file of the first display device,

The second display device is specifically configured to display the first target media file on a display interface, receive a user's playback operation instruction for the first target media file, and update the first target media file according to the playback operation instruction. The playback status of the first target media file is used to generate the description information according to the playback status of the first target media file;

The first display device is specifically configured to control the playback state of the first target media file according to the description information.

In some embodiments, the target event includes a user triggering a playback operation on a second target media file. The second target media file is split into multiple sub-target media files, and different sub-target media files include media in different sub-picture areas. Data, multiple sub-picture areas are spliced into a completed display screen,

The second display device is specifically configured to play a second sub-target media file among the plurality of sub-target media files, receive a user's playback operation instruction for the second sub-target media file, and update the playback operation instruction according to the playback operation instruction. The playback status of the second sub-target media file is generated according to the playback status of the second sub-target media file;

The first display device is specifically configured to play a first sub-target media file among the plurality of sub-target media files, and control the play status of the first sub-target media file according to the description information.

In some embodiments, the size of the sub-picture display area of the sub-target media file corresponding to each display device is proportional to the size of the display screen of the display device.

In some embodiments, the display device set composed of the first display device and the second display device includes a master display device and at least one slave display device, and the master display device communicates with the network and the slave display device through wireless communication. The display device is communicatively connected, and the slave display device is communicatively connected with the master display device through wireless communication.

In some embodiments, the screen information synchronization system is a blackboard system.

Embodiments of the present disclosure also provide a screen information synchronization method, which is applied to the screen information synchronization system as described above. The method includes:

The second display device sends description information of the target event to the first display device;

The first display device receives the description information of the target event sent by the second display device, and performs a synchronization operation according to the description information.

In some embodiments, the method further includes:

The first display device sends a subscription request to the second display device, indicating to obtain the description information of the target event;

The second display device receives the subscription request.

In some embodiments, the method further includes:

The second display device sends a list of target events to the first display device, where the list of target events includes an identification of at least one target event;

The first display device receives the list.

The source display device indicates the sender of the description information;

type of data;

data priority;

Data length;

Data content.

In some embodiments, the display description information includes data type and data priority, and the method further includes:

The first display device arranges the description information according to data type to obtain multiple data queues, and sorts the multiple data queues according to the priority of the data type; in each of the data queues, according to The description information is sorted by the priority of the data; a synchronization operation is performed according to the description information in the order of the description information in the data queue.

In some embodiments, the target event includes the user triggering a click operation on the application icon of the first display device, and the method specifically includes:

The second display device displays the application icon of the first display device on the display interface, receives the user's click operation instruction for the application icon, generates the description information according to the click operation instruction, and sends the description information to the first display device;

The first display device opens an interface of the application corresponding to the application icon according to the description information;

The method also includes:

The first display device feeds back the status information of the application to the second display device;

The second display device marks the application icon as opened according to the status information.

In some embodiments, the target event includes a user triggering an input operation on the second display device, and the description information of the target event includes the content input by the input operation; the method specifically includes:

The second display device displays the content input by the input operation on its own display interface, generates the description information based on the input content, and sends the description information to the first display device;

The first display device receives the description information and synchronously displays the content input by the input operation on its own display interface.

In some embodiments, the target event includes the user triggering a play operation on the first target media file of the first display device, and the method specifically includes:

The second display device displays the first target media file on a display interface, receives a user's playback operation instruction for the first target media file, and updates the playback status of the first target media file according to the playback operation instruction. , generate the description information according to the playback status of the first target media file;

The first display device controls the playback state of the first target media file according to the description information.

In some embodiments, the target event includes a user triggering a playback operation on a second target media file. The second target media file is split into multiple sub-target media files, and different sub-target media files include media in different sub-picture areas. Data, multiple sub-picture areas are spliced into a completed display picture, and the method specifically includes:

The second display device plays a second sub-target media file among the plurality of sub-target media files, receives a user's playback operation instruction for the second sub-target media file, and updates the second sub-target media file according to the playback operation instruction. The playback status of the sub-target media file, generating the description information according to the playback status of the second sub-target media file;

The first display device plays a first sub-target media file among the plurality of sub-target media files, and controls the play status of the first sub-target media file according to the description information.

An embodiment of the present disclosure also provides a display device, including a processor and a memory. The memory stores programs or instructions that can be run on the processor. When the program or instructions are executed by the processor, the above is implemented. The steps of the screen information synchronization method.

Embodiments of the present disclosure also provide a readable storage medium on which programs or instructions are stored. When the programs or instructions are executed by a processor, the steps of the screen information synchronization method as described above are implemented.

Embodiments of the present disclosure have the following beneficial effects:

In the above solution, after the target event is triggered, the second display device can synchronize the description information of the target event to the first display device, and the first display device can perform corresponding operations according to the description information of the target event, so that multiple display devices Collaboration can be achieved between them, including but not limited to application synchronization, collaborative control, and joint playback of media files.

Description of the drawings

Figure 1 is a schematic structural diagram of a screen information synchronization system according to an embodiment of the present disclosure;

Figure 2 is a schematic diagram of the connection between the master display device and the slave display device according to the embodiment of the present disclosure;

Figure 3 is a schematic diagram of multiple display screens spliced according to an embodiment of the present disclosure;

Figure 4 is a schematic diagram of multiple data queues according to an embodiment of the present disclosure;

Figure 5 is a schematic diagram of a first display device displaying an application icon of a second display device according to an embodiment of the present disclosure;

Figure 6 is a schematic diagram of a first display device and a second display device synchronously displaying user input content according to an embodiment of the present disclosure;

Figure 7 is a schematic diagram of the first display device controlling the playback progress of the target media file on the second display device side according to an embodiment of the present disclosure;

Figure 8 is a schematic diagram of multiple display screens playing target media files according to an embodiment of the present disclosure;

Figure 9 is a schematic flowchart of a screen information synchronization method according to an embodiment of the present disclosure;

Figure 10 is a schematic diagram of the composition of a screen information synchronization device according to an embodiment of the present disclosure.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present disclosure clearer, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

Embodiments of the present disclosure provide a screen information synchronization method and system, which can facilitate cooperation between multiple display devices.

Embodiments of the present disclosure provide a screen information synchronization system, as shown in Figure 1, including a first display device 11 and a second display device 12. The first display device 11 and the first display device 12 are communicatively connected.

The second display device 12 is configured to send the description information of the target event to the first display device 11;

The first display device 11 is configured to receive the description information of the target event sent by the second display device 12 and perform a synchronization operation according to the description information.

In the embodiment of the present disclosure, after triggering the target event, the second display device can synchronize the description information of the target event to the first display device, and the first display device can perform corresponding operations according to the description information of the target event, so that multiple Collaboration can be achieved between display devices, including but not limited to application synchronization, collaborative control, and joint playback of media files.

In some embodiments, the first display device and the second display device are connected through wireless communication without the need to connect through hardware interfaces and physical wiring, which does not increase the hardware cost, and this embodiment does not require the first display device and the second display device to be connected. There is no limit on the number of devices, and the first display device and the second display device participating in the collaboration can be added as needed.

In this embodiment, the first display device and the second display device cooperate together. The first display device and the second display device are electronic devices with display screens, including but not limited to mobile phones (such as Android mobile phones, iOS mobile phones, etc.), Laptops, tablets, handheld computers, MID (Mobile Internet Devices, mobile Internet devices), PAD, desktop computers, smart TVs, smart blackboards, etc. Wireless communication includes: Bluetooth, WIFI and other technologies that implement wireless communication. Specifically, the first display device and the second display device can be connected through WIFI.

Among them, the "first" in the first display device and the "second" in the second display device are only to distinguish the display devices. For each display device, it is the first display device, and other display devices The device is a second display device.

The first display device and the second display device form a display device set. In the display device set, a master display device can be set as the main controlled display device, and other display devices can be set as slave display devices. The master display device can be the first display device. device, or it can be a second display device. A display device can be agreed upon in advance as the main display device, or a display device can be re-selected as the main display device later based on the actual application. As shown in Figure 2, the master display device can communicate with the network and the slave display device through wireless communication, and the slave display device can communicate with the master display device through wireless communication. When the master display device is connected to the slave display device and the network through WIFI, the master display device works in station (STA, station) mode, and the slave display device works in access point (AP, Access Point) mode. All display devices are connected via WIFI, without the need for additional hardware interfaces and cables. And even if the WIFI connection is occupied between display devices, it will not affect the connection between the main display device and the network.

As shown in Figure 3, the master display device has a primary display screen, and the slave display device has a secondary display screen. The primary display screen and the secondary display screen can be displayed independently, and can display the same content or different content, such as the secondary display The main display screen displays the user's writing, and the main display screen displays the displayed PPT or video; or both the main display screen and the secondary display screen display the user's handwriting; or the main display screen and the secondary display screen play media files simultaneously; or the main display screen The main screen and secondary display screen are spliced to display a complete picture.

In the embodiment of the present disclosure, the second display device is also used to broadcast the list of target events to be synchronized or collaborated to the first display device, or to send it to a specific first display device. The first display device may receive a list of target events to be synchronized or collaborated sent or broadcast by the second display device, where the list of target events includes an identification of at least one target event. After receiving the list of target events, the first display device can subscribe to the required target events, send a subscription request to the second display device, indicating to obtain the description information of the target event, and the second display device is also used to receive all the target events. Describe the subscription request, so that after the target event is triggered, the second display device will send the description information of the target event to the first display device.

Similarly, the first display device is also used to send a list of target events to the second display device. The list of target events includes the identification of at least one target event. It can also receive a subscription request from the second display device and trigger the target event. After the event, the first display device will send the description information of the target event to the first display device.

In this embodiment, the operations performed by the second display device will also be performed by the first display device. For example, the first display device generates description information of the target event and sends the description information to the second display device for other second display devices. The device performs corresponding operations based on the description information. To avoid redundancy, this embodiment takes the first display device or the second display device as an example to introduce the operations that the display device needs to perform. However, those skilled in the art should know that the operations performed by the first display device can also be performed by the second display device. Execution, the operation performed by the second display device can also be performed by the first display device.

The description information of the target event may be sent between the first display device and the second display device in a broadcast manner, or in an end-to-end manner.

The source display device indicates the sender of the description information, that is, which display device sends the description information of the target event;

The target display device indicates the recipient of the description information, that is, the display device to which the description information of the target event is sent;

Data type, data types include but are not limited to four types: File, Event, Notify, and Object;

Data priority, indicating the priority of target event processing;

Data length, the length of the data payload;

Data content.

The description information of the target event may include one item of the above information, or may include several items of the above information. When the description information of the target event includes the target display device, the first display device will receive the description information of the target event. , to determine whether it is a target display device. If it is not a target display device, the description information of the target event can be ignored; if it is a target display device, the corresponding synchronization operation is performed based on the description information of the target event.

In some embodiments, the display description information includes data type and data priority; the first display device is used to arrange the description information according to the data type to obtain multiple data queues, and arrange the description information according to the priority of the data type. Sorting the plurality of data queues; in each data queue, sorting the description information according to the priority of data; according to the order of the description information in the data queue, according to the description information Perform synchronization operations.

As shown in Figure 4, when the data types include File, Event, Notify, and Object, four data queues are maintained on each display device side: File queue, Event queue, Notify queue, and Object queue. If receiving The data type of the description information of the target event received is File queue, then the description information of the target event is stored in the File queue; if the data type of the description information of the target event received is Event queue, the description information of the target event is stored in the File queue. Stored in the Event queue; if the data type of the description information of the received target event is Notify queue, then the description information of the target event is stored in the Notify queue; if the data type of the description information of the received target event is Object queue , the description information of the target event is stored in the Object queue. Each data queue adopts a first-in, first-out method. Each data queue has a different priority. The priority value can be configured for each data queue, such as in the priority The larger the value, the higher the priority. In a specific example, the priority of the Object queue is higher than the priority of the Event queue, the priority of the Event queue is higher than the priority of the Notify queue, and the priority of the Notify queue is higher than the priority of the File queue. priority.

In addition, in each data queue, there may be description information for multiple target events. Depending on the priority of the data, the description information for multiple target events will also be processed according to the priority. For example, in the Object queue, high-level data will be processed first. Priority data, if the data have the same priority, the data will be processed in a first-in, first-out manner. Through priority policy scheduling, data called by certain emergency programs can be processed first, and some file transfer data can be processed with low priority to meet user needs and improve user experience.

In this embodiment, the target events include but are not limited to the user triggering a click operation on the application icon of the display device (including the first display device and the second display device), the user triggering an input operation on the display device, and the user triggering an input operation on the display device. To play target media files, etc., you can subscribe to target events that need to be obtained as needed. After the target event occurs, the display devices in the display device collection collaborate to achieve application synchronization, collaborative control, and/or media playback.

In a specific embodiment, the target event includes a user triggering a click operation on an application icon of the first display device,

As shown in Figure 5, the second display device can read all applications of the first display device, and can display the application icons of the first display device on its own display interface. The second display device can delineate the application icons on the display interface. Part of the area, such as the area circled in the dotted box, displays the application icon of the first display device to distinguish it from the application icon of the second display device itself; of course, the second display device can also use the application icon in all areas of the display interface. to display the application icon of the first display device. In this embodiment, the second display device may be a master display device, and the first display device may be a slave display device.

In a specific example, the communication between the first display device and the second display device adopts the data type of Object and is transmitted in the form of a list. After the second display device obtains the list, it displays it as a general icon on the list specifically for the first display device. In the drawn display area, as shown in Figure 5, application icons 1, 2, 3, 4, 5 and 6 of the first display device are displayed on the display interface of the second display device. At this time, if the user clicks any one of application icon 1, application icon 2, application icon 3, application icon 4, application icon 5, and application icon 6 on the display interface of the second display device, it is deemed that the user's request for the application has been received. The click operation instruction of the icon generates description information according to the click operation instruction, and notifies the first display device of the description information. The description information indicates that the corresponding application needs to be opened. After receiving the description information, the first display device opens the application corresponding to the application icon. interface, and can feed back a status to the second display device in the form of a notification message. After receiving the notification message, the second display device marks the application icon as open, or the second display device can directly receive the user's After the click operation instruction of the application icon is executed, the corresponding application icon is marked as opened. In addition, the second display device can send the description information of the target event to other display devices to achieve application synchronization between display devices.

In this embodiment, the second display device can display application icons of multiple first display devices. For example, the second display device communicates with N first display devices, and the display interface of the second display device can be divided into N display areas. The application icon of the first first display device is displayed in the first display area, the application icon of the second first display device is displayed in the second display area, and so on, N is an integer greater than or equal to 2. In this way, through the display interface of the second display device, the application icons of one or more first display devices can be operated, thereby realizing application synchronization between multiple display devices.

In a specific embodiment, the target event includes a user triggering an input operation on the second display device, the description information of the target event includes the content input by the input operation, and the second display device is specifically used to perform an input operation on the second display device. Display the content input by the input operation on its own display interface, generate the description information based on the input content, and send the description information to the first display device;

In this embodiment, the display device can interact with the user, and the display devices can synchronize interaction events with the user. For example, when the user triggers an input operation on the second display device, the second display device receives the content input by the user, displays the content input by the user on its own display interface, and sends the content input by the user as the description information of the target event to The first display device, after receiving the description information of the target event, displays the content input by the input operation on its own display interface.

In a specific example, the content input by the input operation is the user's handwriting. As shown in Figure 6, when the user performs an input operation through the writing whiteboard software, the user's handwriting can be synchronized in real time through the technical solution of this embodiment. As shown in Figure 6, the handwriting whiteboard software is started on the second display device. The user writes through the touch screen, and the whiteboard software draws the handwriting to the corresponding area. At the same time, the second display device can use the content input by the user as the description information of the target event. The input event is sent to the first display device through the input event. The first display device simulates a uinput device, and the whiteboard software running on the first display device draws it in the relevant area of the display interface of the first display device.

In this embodiment, the first display device can delimit a portion of the display interface to display the content input by the user on the second display device to distinguish it from the display content of the first display device itself. Of course, the first display device can also All areas of the display interface can be used to display content input by the user on the second display device.

In this embodiment, the first display device can display the input content of multiple second display devices. For example, the first display device communicates with N second display devices, and the display interface of the first display device can be divided into N display areas. The input content of the first second display device is displayed in the first display area, the input content of the second second display device is displayed in the second display area, and so on, N is an integer greater than or equal to 2. In this way, the input content of one or more second display devices can be displayed through the display interface of the first display device, thereby achieving synchronization of display content between multiple display devices.

In this embodiment, the first display device may be a master display device in the display device set, and the second display device may be a slave display device in the display device set; of course, the first display device may also be a slave display device in the display device set. device, the second display device may be the main display device in the display device set.

In some embodiments, the screen information synchronization system is a blackboard system, and the technical solution of the present disclosure can realize synchronization of writing operations on multiple blackboards in the blackboard system.

In a specific embodiment, the target event includes the user triggering a playback operation on the first target media file of the first display device,

In this embodiment, file lists and files can be shared between the first display device and the second display device, thereby enabling cross-device playback of media files, where the media files include but are not limited to audio, video, and pictures. In this embodiment, the list of media files on any first display device can be viewed on the second display device. Using the list data in the Object type, the user can control the first display device to play a certain target media file on the second display device. , in order to distinguish, it is called the first target media file. After receiving the user's playback operation instruction for the first target media file, the second display device can control the playback, stop, pause, and fast forward of the first target media file. , rewind and other playback states, update the playback state of the first target media file, generate the description information according to the playback state of the first target media file, and synchronize the description information to the first display device, thereby achieving playback synchronization between display devices. . The description information may be implemented by sending a Notify event from the second display device to the first display device. At the same time, the playback status of the first target media file is displayed on the second display device. This status information is sent by the first display device to the second display device. Notify event is implemented, as shown in Figure 7.

After playing the first target media file on the first display device, the playback status of the first target media file can be sent to the second display device, including but not limited to: whether the first target media file is in play, stop, fast forward, Fast rewind and other states, the playback duration when in the playback state, the corresponding playback duration when in the stop state, the fast forward magnification when in the fast forward state and the corresponding playback duration, and the fast rewind magnification when in the fast rewind state And the corresponding playback duration, etc., after receiving the playback status of the first target media file, the second display device updates the playback status of the first target media file according to the playback operation instruction input by the user, such as the initial status of the first target media file. is in the playback state. After the user inputs a fast-forward playback operation instruction, the second display device updates the playback state of the first target media file to fast-forward, determines the corresponding playback duration, and uses the fast-forward state and the corresponding playback duration as descriptions. The information is sent to the first display device, and the first display device can control the playback state of the first target media file according to the description information. For another example, the initial state of the first target media file is in a paused state. After the user inputs a playback operation instruction instructing playback, the second display device updates the playback status of the first target media file to play, determines the corresponding playback duration, and plays the file. The status and corresponding playback duration are sent to the first display device as description information, and the first display device can control the playback status of the first target media file based on the description information.

In this embodiment, the second display device can delimit a portion of the display interface to display the playback control interface (including pause, play, fast forward, rewind, etc. buttons) of the first target media file to communicate with the second display device itself. of course, the second display device can also be used to display the playback control interface of the first target media file in all areas of the display interface.

In this embodiment, the second display device can display the playback control interface of the first target media file of multiple first display devices. For example, the second display device communicates with N first display devices, and the display interface of the second display device can Divided into N display areas, the first display area displays the playback control interface of the first target media file of the first first display device, and the second display area displays the first target of the second first display device. The playback control interface of media files, and so on, N is an integer greater than or equal to 2. In this way, through the display interface of the second display device, the playback status of the first target media file of one or more first display devices can be controlled, and the sharing, collaborative control and playback of media files can be realized between multiple display devices.

In this embodiment, the second display device may be a master display device in the display device set, and the first display device may be a slave display device in the display device set.

The display screens of multiple display devices can be spliced together for screen display. In a specific example, as shown in Figure 8, the display device set includes a first display device and two second display devices. The display screen of the first display device can As the main display screen, the display screen of the second display device can be used as the secondary display screen. Each display screen displays a part of the picture and is spliced to display a large picture. When multiple display devices are used to play the second target media file, the data of the second target media file can be split according to the size ratio of the display screen of the display device, so that the sub-screen of the sub-target media file corresponding to each display device The size of the display area is proportional to the size of the display screen of the display device. The larger the size of the display screen of the display device, the larger the size of the displayed sub-picture display area.

When the second display device plays the corresponding sub-target media file, the playback state of the sub-target media file is controlled according to the playback operation instruction input by the user, including but not limited to: whether the second target media file is in play, stop, fast forward, fast Rewind state, the playback duration when in the playback state, the corresponding playback duration when in the stop state, the fast forward magnification and corresponding playback duration when in the fast forward state, the fast rewind magnification when in the fast rewind state, and The corresponding playback duration, etc., and the description information is generated according to the playback status of the sub-target media file, and the description information is sent to the first display device through an Event message. The first display device controls the playback of the corresponding sub-target media file based on the description information. status to achieve playback synchronization between multiple display devices.

In this embodiment, the second display device may be a master display device in the display device set, and the first display device may be a slave display device in the display device set. Alternatively, the first display device may be a master display device in the display device set, and the second display device may be a slave display device in the display device set.

Embodiments of the present disclosure also provide a screen information synchronization method, which is applied to the screen information synchronization system as described above. As shown in Figure 9, the method includes:

Step 101: The second display device sends the description information of the target event to the first display device;

Step 102: The first display device receives the description information of the target event sent by the second display device, and performs a synchronization operation based on the description information.

Data priority, indicating the priority of target event processing;

Data length, the length of the data payload;

Data content.

The description information of the target event may include one item of the above information, or may include several items of the above information. When the description information of the target event includes the target display device, the first display device will receive the description information of the target event. , determine whether it is a target display device. If it is not a target display device, you can ignore the description information of the target event; if it is a target display device, perform corresponding synchronization operations based on the description information of the target event.

An embodiment of the present disclosure also provides a display device, as shown in Figure 10, including a processor 32 and a memory 31. The memory 31 stores programs or instructions that can be run on the processor 32. The program or When the instructions are executed by the processor 32, the steps of the screen information synchronization method as described above are implemented.

When the display device is a first display device, the memory 31 stores programs or instructions that can be run on the processor 32. When the programs or instructions are executed by the processor 32, the first display device is implemented as described above. Side screen information synchronization method steps.

When the display device is a second display device, the memory 31 stores programs or instructions that can be run on the processor 32. When the programs or instructions are executed by the processor 32, the second display device is implemented as described above. Side screen information synchronization method steps.

Computer-readable media includes both persistent and non-volatile, removable and non-removable media that can be implemented by any method or technology for storage of information. Information may be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), and read-only memory. (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, Magnetic tape cassettes, tape magnetic disk storage or other magnetic storage terminal devices or any other non-transmission medium may be used to store information that can be accessed by a computing terminal device. As defined in this article, computer-readable media does not include transitory media, such as modulated data signals and carrier waves.

It should be noted that, in this document, the terms "comprising", "comprises" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or apparatus. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article or apparatus that includes that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions may be performed, for example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology. The computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Inspired by this application, many forms can be made without departing from the purpose of this application and the scope protected by the claims, all of which fall within the protection of this application.

Claims

A screen information synchronization system, characterized by including a first display device and a second display device, the first display device and the first display device being communicatively connected,

The second display device is configured to send description information of the target event to the first display device;

The first display device is configured to receive the description information of the target event sent by the second display device, and perform a synchronization operation according to the description information.
The screen information synchronization system according to claim 1, wherein the first display device is connected to the second display device through wireless communication.
The screen information synchronization system according to claim 1, characterized in that:

The first display device is further configured to send a subscription request to the second display device, indicating to obtain the description information of the target event;

The second display device is also configured to receive the subscription request.
The screen information synchronization system according to claim 3, characterized in that:

The second display device is further configured to send a list of target events to the first display device, where the list of target events includes an identification of at least one target event;

The first display device is also configured to receive the list.
The screen information synchronization system according to claim 1, wherein the description information of the target event includes at least one of the following:

The source display device indicates the sender of the description information;

The target display device indicates the recipient of the description information;

type of data;

data priority;

Data length;

Data content.
The screen information synchronization system according to claim 5, wherein the display description information includes data type and data priority;

The first display device is used to arrange the description information according to the data type, obtain multiple data queues, and sort the multiple data queues according to the priority of the data type; in each of the data queues , sort the description information according to the priority of data; perform synchronization operations according to the description information in the order of the description information in the data queue.
The screen information synchronization system according to claim 1, wherein the target event includes a user triggering a click operation on an application icon of the first display device,

The second display device is specifically configured to display the application icon of the first display device on a display interface, receive a user's click operation instruction for the application icon, generate the description information according to the click operation instruction, and convert the The description information is sent to the first display device;

The first display device is specifically configured to open an interface of an application corresponding to the application icon according to the description information;

The first display device is also configured to feed back the status information of the application to the second display device;

The second display device is further configured to mark the application icon as opened according to the status information.
The screen information synchronization system according to claim 1, wherein the target event includes a user triggering an input operation on the second display device, and the description information of the target event includes the content input by the input operation;

The second display device is specifically configured to display the content input by the input operation on its own display interface, generate the description information according to the input content, and send the description information to the first display device;

The first display device is specifically configured to receive the description information and synchronously display the content input by the input operation on its own display interface.
The screen information synchronization system according to claim 8, wherein the content input by the input operation is the user's handwriting.
The screen information synchronization system according to claim 1, wherein the target event includes a user triggering a playback operation on the first target media file of the first display device,

The second display device is specifically configured to display the first target media file on a display interface, receive a user's playback operation instruction for the first target media file, and update the first target media file according to the playback operation instruction. The playback status of the first target media file is used to generate the description information according to the playback status of the first target media file;

The first display device is specifically configured to control the playback state of the first target media file according to the description information.
The screen information synchronization system according to claim 1, wherein the target event includes a user triggering a playback operation on a second target media file, and the second target media file is split into multiple sub-target media files. The sub-target media file includes media data of different sub-picture areas, and multiple sub-picture areas are spliced into a completed display screen.

The second display device is specifically configured to play a second sub-target media file among the plurality of sub-target media files, receive a user's playback operation instruction for the second sub-target media file, and update the playback operation instruction according to the playback operation instruction. The playback status of the second sub-target media file is generated according to the playback status of the second sub-target media file;

The first display device is specifically configured to play a first sub-target media file among the plurality of sub-target media files, and control the play status of the first sub-target media file according to the description information.
The screen information synchronization system according to claim 11, characterized in that the size of the sub-picture display area of the sub-target media file corresponding to each display device is proportional to the size of the display screen of the display device.
The screen information synchronization system according to any one of claims 1 to 12, wherein the display device set composed of the first display device and the second display device includes a master display device and at least one slave display device. Display device, the master display device is communicatively connected to the network through wireless communication, and the slave display device is communicatively connected to the master display device through wireless communication.
The screen information synchronization system according to any one of claims 1-12, characterized in that the screen information synchronization system is a blackboard system.
A screen information synchronization method, characterized in that it is applied to the screen information synchronization system according to any one of claims 1-14, and the method includes:

The second display device sends description information of the target event to the first display device;

The first display device receives the description information of the target event sent by the second display device, and performs a synchronization operation according to the description information.
The screen information synchronization method according to claim 15, characterized in that the method further includes:

The first display device sends a subscription request to the second display device, indicating to obtain the description information of the target event;

The second display device receives the subscription request.
The screen information synchronization method according to claim 15, characterized in that the method further includes:

The second display device sends a list of target events to the first display device, where the list of target events includes an identification of at least one target event;

The first display device receives the list.
The screen information synchronization method according to claim 15, wherein the description information of the target event includes at least one of the following:

The source display device indicates the sender of the description information;

The target display device indicates the recipient of the description information;

type of data;

data priority;

Data length;

Data content.
The screen information synchronization method according to claim 18, wherein the display description information includes data type and data priority, and the method further includes:

The first display device arranges the description information according to data type to obtain multiple data queues, and sorts the multiple data queues according to the priority of the data type; in each of the data queues, according to The description information is sorted by the priority of the data; a synchronization operation is performed according to the description information in the order of the description information in the data queue.
The screen information synchronization method according to claim 15, wherein the target event includes a user triggering a click operation on an application icon of the first display device, and the method specifically includes:

The second display device displays the application icon of the first display device on the display interface, receives the user's click operation instruction for the application icon, generates the description information according to the click operation instruction, and sends the description information to the first display device;

The first display device opens an interface of the application corresponding to the application icon according to the description information;

The method also includes:

The first display device feeds back the status information of the application to the second display device;

The second display device marks the application icon as opened according to the status information.
The screen information synchronization method according to claim 15, wherein the target event includes a user triggering an input operation on the second display device, and the description information of the target event includes the content input by the input operation; The method specifically includes:

The second display device displays the content input by the input operation on its own display interface, generates the description information based on the input content, and sends the description information to the first display device;

The first display device receives the description information and synchronously displays the content input by the input operation on its own display interface.
The screen information synchronization method according to claim 15, wherein the target event includes a user triggering a playback operation on the first target media file of the first display device, and the method specifically includes:

The second display device displays the first target media file on a display interface, receives a user's playback operation instruction for the first target media file, and updates the playback status of the first target media file according to the playback operation instruction. , generate the description information according to the playback status of the first target media file;

The first display device controls the playback state of the first target media file according to the description information.
The screen information synchronization method according to claim 15, wherein the target event includes a user triggering a playback operation on a second target media file, and the second target media file is split into multiple sub-target media files. The sub-target media file includes media data of different sub-picture areas, and multiple sub-picture areas are spliced into a completed display screen. The method specifically includes:

The second display device plays a second sub-target media file among the plurality of sub-target media files, receives a user's playback operation instruction for the second sub-target media file, and updates the second sub-target media file according to the playback operation instruction. The playback status of the sub-target media file, generating the description information according to the playback status of the second sub-target media file;

The first display device plays a first sub-target media file among the plurality of sub-target media files, and controls the play status of the first sub-target media file according to the description information.
A display device, characterized in that it includes a processor and a memory, the memory stores a program or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the implementation of claims 15 to 10 Steps of the screen information synchronization method described in any one of 23.
A readable storage medium, characterized in that the readable storage medium stores programs or instructions, and when the programs or instructions are executed by a processor, the screen information synchronization method according to any one of claims 15 to 23 is implemented. A step of.