CN116257199A - Screen throwing display method, type-C screen throwing device, equipment and storage medium - Google Patents

Abstract

The embodiment of the invention discloses a screen projection display method, a Type-C screen projector, equipment and a storage medium, wherein the method comprises the following steps: when receiving screen throwing pictures from a plurality of data source ends, configuring picture parameters for each data source end according to display parameters of a screen and the number of the data source ends; the screen throwing picture is used for displaying on the screen; and sending the picture parameters to the corresponding data source end so that the terminal equipment corresponding to the data source end generates and sends a screen throwing picture according to the received picture parameters. The screen-throwing display equipment configures picture parameters for each data source end according to the number of the data source ends and the display parameters of the screen, and sends the picture parameters to the corresponding data source end, so that the terminal equipment corresponding to the data source end generates a screen-throwing picture according to the received picture parameters, and the screen utilization rate and the display effect of the screen-throwing picture are improved.

Description

Screen projection display method, Type-C screen projection device, equipment and storage medium

technical field

The embodiments of the present invention relate to the field of interactive technologies, and in particular, to a screen projection display method, a Type-C screen projection device, a device, and a storage medium.

Background technique

In multi-person communication scenarios such as conferences and teaching, screen sharing is a frequently used function based on information technology. Common screen sharing solutions use wired or wireless The form sends the screen image to a display device (display, TV, projector, etc.), and the display device displays the received screen image.

In order to realize the comparison and reference of the screen content of multiple data sources, the screen sharing scheme in the existing display device also realizes the multi-screen same-screen function, that is, the screen images delivered by multiple data sources are displayed in a tiled manner on the display device . When displaying in tiles, the projected screen images are scaled and displayed proportionally according to the original aspect ratio. Because the number of screen images is different, all screen images may not be able to cover the entire screen, and the normal operation will be affected after tiling. display effect. For example, only two screens are displayed on the screen, and each screen is scaled in equal proportions and then displayed in a tiled manner. Usually, one left and one right are horizontally spread, and the top and bottom are centered. At this time, the actual Only 1/4 of the size of the entire screen, the content of each screen is compressed to a small size, and the utilization rate of the screen is very low. The content of each screen cannot be clearly seen in the comparison display, and the display goal of the comparison display cannot be achieved.

Contents of the invention

The present invention provides a screen projection display method, a Type-C screen projection device, equipment, and a storage medium to solve the technical problems of low screen utilization and inability to realize comparative display in the existing screen projection scheme.

In the first aspect, an embodiment of the present invention provides a screen projection display method for a screen projection display device, including:

When receiving screen projections from multiple data sources, configure screen parameters for each of the data sources according to the display parameters of the screen and the number of data sources; show;

The screen parameters are sent to the corresponding data source, so that the terminal device corresponding to the data source generates and sends a projection screen according to the received screen parameters.

In the second aspect, the embodiment of the present invention also provides a screen projection display method for a Type-C screen projection device, including:

Receive the screen parameters sent by the projection screen display device;

Resetting the identification data of the extended display according to the screen parameters, and reconnecting the display channel;

The image data received from the display channel is sent to the screen projection display device as a projection screen for display.

In the third aspect, the embodiment of the present invention also provides a projection screen display method for a terminal device, including:

Receive the screen parameters sent by the screen projection display device or forwarded by the screen projection display device through the USB screen projector;

Displaying a screenshot area frame according to the screen parameters;

receiving a position adjustment operation on the screenshot area frame, and correspondingly adjusting the display position of the screenshot area frame;

The image data of the screenshot area frame is intercepted as a projected screen image.

In a fourth aspect, an embodiment of the present invention further provides a screen projection display device, including:

The parameter configuration unit is used to configure screen parameters for each of the data source terminals according to the display parameters of the screen and the number of data source terminals when receiving screen projection pictures from multiple data source terminals; wherein, the screen projection pictures use for display on said screen;

The parameter sending unit is configured to send the screen parameters to the corresponding data source, so that the terminal device corresponding to the data source generates and sends a projection screen according to the received screen parameters.

In the fifth aspect, the embodiment of the present invention also provides a Type-C screen projector, including:

The first parameter receiving unit is used to receive the screen parameters sent by the projection screen display device;

A screen parameter reset unit, configured to reset the identification data of the extended display according to the screen parameters, and reconnect the display channel;

The screen projection image sending unit is configured to send the image data received from the display channel as a projection image to the projection display device for display.

In a sixth aspect, an embodiment of the present invention further provides a terminal device, including:

The second parameter receiving unit is used to receive the screen parameters sent by the screen projection display device or forwarded by the screen projection display device through the USB screen projector;

A screenshot frame display unit, configured to display a screenshot area frame according to the screen parameters;

an adjustment operation receiving unit, configured to receive a position adjustment operation on the screenshot area frame, and correspondingly adjust the display position of the screenshot area frame;

A screenshot sending unit, configured to intercept the image data of the screenshot area frame as a screen projection image, and send it to the screen projection display device for display.

In the seventh aspect, the embodiment of the present invention also provides an electronic device, including:

one or more processors;

memory for storing one or more programs;

When the one or more programs are executed by the one or more processors, the electronic device is made to implement the screen projection display method according to any one of the first aspect to the third aspect.

In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the screen projection display method according to any one of the first aspect to the third aspect is implemented.

The above screen projection display method, Type-C screen projection device, device and storage medium, the method includes: when receiving screen projection images from multiple data sources, according to the display parameters of the screen and the number of data sources, for each The data source end configures screen parameters; wherein, the screen projection screen is used to display on the screen; the screen parameters are sent to the corresponding data source end, so that the terminal device corresponding to the data source end The received screen parameters are generated and sent to the projection screen. The screen projection display device configures screen parameters for each data source according to the number of data sources and the display parameters of the screen, and sends the screen parameters to the corresponding data source, so that the terminal device corresponding to the data source The parameters generate the projection screen, which improves the screen utilization and the display effect of the projection screen.

Description of drawings

FIG. 1 is a flow chart of a screen projection display method for a screen projection display device provided by an embodiment of the present invention;

2 is a schematic diagram of an interactive panel;

FIG. 3 is a schematic diagram of screen projection screens displayed by two data source terminals on an interactive panel in the prior art;

FIG. 4 is a schematic diagram of a state in which an interactive panel is connected to a combination of data sources in the prior art;

FIG. 5 is a schematic diagram of a state in which an interactive panel is connected to another data source combination in the prior art;

Fig. 6 is a schematic diagram of the display content of the screen projection screen displayed by the interactive panel displaying two data sources in the prior art;

FIG. 7 is a schematic diagram of adjusting the projection screen according to the EDID;

Fig. 8 and Fig. 9 are the schematic diagrams of generating the projection screen through the screenshot area box;

Fig. 10 is a schematic diagram of a projected screen displaying a combination of data sources on the interactive panel in this solution;

Fig. 11 is a schematic diagram of the projection screen of another combination of data sources displayed on the interactive panel in this solution;

Fig. 12 is a method flow chart of a screen projection display method for a Type-C screen projection device provided by an embodiment of the present invention;

FIG. 13 is a method flow chart of a screen projection method for a terminal device provided by an embodiment of the present invention;

FIG. 14 is a schematic structural diagram of a projection screen display device provided by an embodiment of the present invention;

FIG. 15 is a schematic structural diagram of a Type-C screen projector provided by an embodiment of the present invention;

FIG. 16 is a schematic structural diagram of a terminal device provided by an embodiment of the present invention;

FIG. 17 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are used to explain the present invention rather than limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

It should be noted that due to space limitations, this application description does not list all optional implementation modes. After reading this application description, those skilled in the art should be able to imagine that as long as the technical features do not contradict each other, then any of the technical features Any combination can constitute an optional embodiment.

Each embodiment will be described in detail below.

Fig. 1 is a method flow chart of a screen projection display method provided by an embodiment of the present invention. The screen projection display method is used for a screen projection display device. As shown in the figure, the screen projection display method includes:

Step S110: When receiving screen projections from multiple data sources, configure screen parameters for each of the data sources according to the display parameters of the screen and the number of data sources; The above screen is displayed.

The projection display device is an auxiliary device for screen sharing. It can receive the screen images of other terminal devices in a wired and/or wireless manner through a combination of software and/or hardware. The display content of the terminal device is displayed to multiple people. Common screen projection devices such as large-size TVs, interactive panels, LED screens, etc. In this solution, the interactive tablet is taken as an example to describe in detail. An interactive panel can be an integrated device that controls the content displayed on the display panel and realizes human-computer interaction through touch technology. one or more functions.

Generally speaking, as shown in FIG. 2 , the interactive tablet 1 includes at least one display screen. For example, the interactive panel 1 is configured with a display screen 11 with a touch function, and the display screen may be a capacitive screen, a resistive screen or an electromagnetic screen. In this embodiment, further, the user can realize the touch operation by touching the display screen with a finger or a stylus. Correspondingly, the interactive panel 1 detects the touch position, and responds according to the touch position, so as to realize the touch operation. Function. Typically, the interactive tablet 1 is installed with at least one operating system, wherein the operating system includes but not limited to Android system, Linux system and Windows system.

The interactive tablet is an interactive device mainly used to support multi-person communication scenarios, and the software in it is mainly used to realize the functional requirements in multi-person communication scenarios. For example, the interactive tablet 1 can install at least one application program with document presentation function. Wherein, the application program may be an application program provided by the operating system, and at the same time, an application program downloaded from a third-party device or server is also installed. Optionally, in addition to the basic function of displaying the edited content, the program with the presentation function also has other editing functions during the presentation process, such as inserting tables, inserting pictures, illustration graphics, drawing tables, drawing graphics, etc. In order to realize the real-time display of user information input and input content in the information display process, and further improve the information display and interaction effect in the document presentation process. For example, the interactive tablet 1 can be installed with at least one application program with a whiteboard function, based on which the user can realize real-time writing, recording, modification and storage in a multi-person communication scenario. For another example, an application program may be installed on the interactive tablet 1 to receive and display the projected screen, for example, the interactive tablet 1 in FIG. 2 receives and displays the first image 111 on the screen 11 in full screen. In order to better support multi-person communication, different applications may be used in conjunction. For example, when performing a presentation, you can use the real-time input function of the whiteboard function to implement supplementary explanations on the content of the presentation on the presentation screen.

Specific to receiving and displaying the projected screen, the data transmission between other terminal devices and the interactive device may be wired or wireless. Wired such as HDMI (High Definition Multimedia Interface, high-definition multimedia interface) data cable, network cable; wireless such as Bluetooth, Wi-Fi (Wireless Fidelity, wireless fidelity), in order to realize data transmission between other terminal devices and interactive devices, some In the connection mode, an external device needs to be connected to the terminal device as the physical hardware basis for data transmission. In this solution, the hardware device that directly transmits data with the interactive device during the projection process is defined as the data source, that is, the data source may be other terminal devices themselves, or external devices connected to other terminal devices. For an interactive device, regardless of the type of the data source, the final display effect on the received screen data is basically the same.

On the basis of displaying a full-screen projection screen (i.e. the first screen 111) in the interactive panel 1 as shown in FIG. 2, if the interactive panel 1 receives a new projection screen, the new projection screen is also displayed on the On the screen 11, the original first picture 111 ends the full-screen state, and the first picture 111 and the newly received second picture 112 are reduced in size compared to the full screen, and then displayed in the center of the screen 11 with the largest picture, as shown in Figure 3 As shown, in this display state, the first picture 111 and the second picture 112 can only occupy 1/4 of the full screen. Generally speaking, the size of the display area of the first picture 111 and the second picture 112 has affected the The clear presentation of the contents of the first screen 111 and the second screen 112 and the information display effect in the multi-person communication scene cannot be guaranteed. The display effect of each screen projection needs to be optimized.

In this solution, the optimization of the triggering display effect starts from confirming the reception of the projection screens from multiple data sources. For the relevant information of the data source of the current screen projection, when it is confirmed that the data source of the screen projection has changed, and the screen projection images from multiple data sources are received after the change, the actual operation of optimizing the display effect will be started. In this solution, the change of the data source includes the change of the individual of the data source and the change of the quantity of the data source, any of which will trigger the subsequent optimization display process. Usually, in actual processing, no matter whether the data source is connected or disconnected, the number of data sources will of course change before the individual data source changes. Therefore, in this case, only the number of data sources can be used The change triggers the subsequent optimization display process, that is, as long as it is confirmed that there is a change in the connection or disconnection of the data source, and the number of changed data sources is multiple, then it can be confirmed that the projection screen from multiple data sources has been received , triggering subsequent actions. If the connection status of the data source remains unchanged, the effect after the previous optimized display will not be adjusted.

Overall, according to the display parameter confirmation of the screen and the number of data sources, the screen is divided into areas according to the preset division mode and the parameters of each area are confirmed, and the area parameters are configured as the corresponding The screen parameter of the data source.

For interactive devices, the size of the screen is already fixed, and the optimization of the display effect can only be realized by allocating a display area for each data source. Specifically, a display area of the same size may be allocated to each data source. For example, if the resolution of the screen is 1920×1080, if there is only one projected image, then the projected image will be directly displayed in full screen on the 1920×1080 screen. If a new projected image is received, each projected image will only It can be displayed in the area of 960×1080. When the projected screen itself remains unchanged, in the area of 960×1080, it is actually only displayed in the area of 960×540. Configure the screen parameters for each data source and send them to the data source to obtain a projection screen suitable for the display area that can be allocated. In the specific allocation, different numbers of data sources may use the same display area allocation method, for example, 3 data sources and 4 data sources, the size of the display area corresponding to the allocation is the same, that is, each data source is Correspondingly allocate a display area of 1/4 screen size.

In addition to allocating a display area of the same size to each data source, it is also possible to assign a larger display area to the data source that is currently the main display and assign corresponding display parameters according to the display requirements during multi-person interaction. For example, the larger area in the upper left corner is the main display area, and other data sources are assigned smaller display areas outside the main display area. Provide a larger display area according to the display focus. Moreover, if the number of data sources cannot realize the display of the projected screen in a complete array, an uneven distribution method can also be used. For example, if there are three data sources, half of the screen can be allocated to one of the data sources, and 1/4 of the other two data sources can be allocated to maximize the use of the display area on the screen.

Step S120: Send the screen parameters to the corresponding data source, so that the terminal device corresponding to the data source generates and sends a projection screen according to the received screen parameters.

According to different data transmission or interface methods, data sources can be classified into device types, and the actual generation process of the projection screen is also different. In this case, after receiving the screen parameters, different data sources Generate and send the projection screen in a corresponding way, and finally achieve the reduction of unnecessary areas in the projection screen by adjusting the projection screen at the data source end without changing the display area itself, and finally make other terminal devices Valuable visual information is displayed as clearly as possible on the interactive terminal.

In terms of device types, the data source can be divided into two types. One is that the data source itself is connected to other terminal devices as a display, but the data source itself has no display function, but sends the data obtained from the terminal device to Displayed on the interactive flat panel, this data source is connected to the terminal device through various existing display interfaces, such as the Type-C interface, which is defined as a Type-C screen projector here. In addition, VGA (Video Graphics Array, Video graphics array) interface can also be realized; the other is that the data source obtains the projected screen by continuously capturing the screen in the terminal device, and then sends the projected screen to the interactive flat panel for display, such as based on USB (Universal Serial Bus , Universal Serial Bus) interface USB screen projector and screen projection directly realized through the screen projection software installed on the terminal device. The data sources accessed by the interactive panel at the same time can be the same or different.

Please refer to FIG. 4 and FIG. 5, the screen 11 of the interactive tablet 1 in FIG. Device 23, the second terminal device 22 is connected with a USB screen projector 32, that is, the data source corresponding to the first screen 111 is the USB screen projector 32; the second screen 112 is directly projected by the third terminal device 23 through the screen projection software It is obtained that the data source corresponding to the second screen 112 is a terminal device. The screen 11 of the interactive tablet 1 in Fig. 5 displays a first picture 111 and a second picture 112, wherein the first picture 111 comes from the first terminal device 21, the second picture 112 comes from the second terminal device 22, and the first terminal device 21 A Type-C screen projector 31 is connected, that is, the data source corresponding to the first screen 111 is the Type-C screen projector 31, and the second terminal device 22 is connected to a USB screen projector 32, that is, the data corresponding to the second screen 112 The source end is a USB screen projector 32 .

For the specific setting of screen parameters for the interactive panel, the setting method is related to the device type, corresponding to different device types, and step S130 can be specifically implemented through steps S131 and S132:

Step S131: If the data source is a Type-C screen projector, confirm that the setting method of the corresponding screen parameter is the extended display identification data, and send the extended display identification data to the corresponding Type-C screen projector to Make the Type-C screen projector reset the identification data of the extended display and reconnect the display channel.

For Type-C screen projectors and other data sources equivalent to external displays, there is an embedded system inside, and EDID (Extended display identification data, extended display identification data) is written in the embedded system, and the embedded system is based on EDID confirms the aspect ratio and display details of the final generated display screen. For this type of screen projector, the interactive panel directly configures the screen parameters as EDID and sends it to the Type-C screen projector, and the Type-C screen projector receives it. After the new EDID is written, the operating system of the terminal device can recognize the change of the EDID by re-connecting the circuit, and rearrange the display screen according to the EDID (especially the resolution), and use the method of compressing the low-value screen area way to maximize the use of the allocated display area.

Step S132: If the data source is a USB screen projector or a terminal device, confirm that the setting method of the corresponding screen parameters is a screenshot area box, and send the parameters of the screenshot area box to the corresponding USB screen projector or terminal device, so that the corresponding terminal device generates a screen projection image according to the parameters.

The USB screen projector or the terminal device itself cannot directly update the display layout according to the EDID. In this solution, the method of extracting the screen projection target area is adopted to maximize the use of the allocated display area. The specific extraction process is realized through the screenshot area frame, and the interactive panel sends the parameters of the screenshot area frame to the corresponding USB screen projector or terminal device. If the USB screen projector receives the parameters of the screenshot area box, it forwards it to the terminal device. The terminal device generates and displays a screenshot area frame of a corresponding size according to the parameters, and the terminal device receives an operation to adjust the position of the screenshot area frame, and correspondingly adjusts the display position of the screenshot area frame; The image data is intercepted as a projection screen.

The specific process of regenerating and displaying the projected screen is illustrated with reference to FIG. 6-FIG. 11 . As shown in FIG. 6 , in the prior art, the screen 11 with a resolution of 1920×1080 receives the display effect when the screen projection images from two data sources are received. The first image 111 and the second image 112 are displayed on the screen 11. The first screen 111 is a window screen of a document file, the second screen 112 is a window screen of a presentation, and the corresponding display resolution of each projection screen is 960×540. Based on this solution, when the interactive tablet receives the second screen 112, it confirms that it has received the screen projection screens from multiple data sources, and divides the resolution of the screen equally according to the number of data sources, and the resolution corresponding to each window screen Both are 960×1080.

If the data source is a Type-C screen projector, confirm that the setting method of the corresponding screen parameters is EDID, and then directly send the 960×1080 EDID to the corresponding Type-C screen projector, and the Type-C screen projector receives After the EDID is updated, the description of the EDID is updated, and the display channel is reconnected. The operating system of the corresponding terminal device recognizes the change of the EDID and rearranges the display screen according to the resolution. In the second picture 112 shown in FIG. 6 , the window picture of the presentation is adapted to the original resolution, the distribution of catalog pages is relatively sparse, and the blank area around the currently displayed page is relatively large; after rearranging according to the EDID, as As shown in Figure 7, the window screen of the presentation is still completely displayed, but the distribution of the catalog pages becomes compact, and the blank area around the currently displayed page is reduced. The method of low-value screen area ensures the clear display of substantive content as much as possible, and maximizes the use of the allocated display area.

If the data source is a USB screen projector or terminal device, confirm that the setting method of the corresponding screen parameters is the screenshot area box, configure the assigned screen parameters as parameters of the screenshot area box, and send the parameters to the corresponding USB screen projector Or a terminal device, as shown in Figure 8 and Figure 9, the terminal device generates and displays a screenshot area frame 113 of a corresponding size according to the parameters, and the terminal device receives the user's position adjustment operation on the screenshot area frame 113, and the image in the screenshot area frame 113 The data is intercepted as a projected screen. Of course, the adjustment of the data in the screenshot area frame 113 is not only the adjustment of the position of the screenshot area frame 113, but also the adjustment of the position of the displayed window screen (including position and zoom). For example, in the window screen of the document file shown in Figure 8, the middle part is the position of the document's substantial content, and in the state shown in Figure 8, the screenshot area frame 113 cannot completely select all the document's substantial content. The window screen will be reduced until it is fully selected. Similar to FIG. 9 , the window image of the presentation is reduced until all currently displayed pages of the presentation are located in the screenshot area box 113 . Thus, by extracting the projection target area, the allocated display area can be utilized to the maximum extent.

As shown in Figure 10 and Figure 11, it is a combination of data sources of two different types of devices, and the corresponding terminal device completes the adjusted screen projection display effect according to the screen parameters. In FIG. 10, the data source corresponding to the first picture 111 displayed on the screen 11 is a USB screen projector or terminal device, and its display content is from FIG. 8, and the data source corresponding to the second picture 112 is a Type-C screen projector. Its display content comes from Figure 7. In Figure 11, the data source corresponding to the first picture 111 displayed on the screen 11 is a USB screen projector or terminal device, and its display content is from Figure 8, and the data source corresponding to the second picture 112 displayed on the screen 11 is a USB screen projector device or terminal device, its display content comes from Figure 9. It should be noted that the two data source terminals in Figure 10 and Figure 11 are two different data source terminals, which are only an exemplary combined connection method, and there can be more combinations of device types, such as USB projectors at the same time. screen device, terminal device, and Type-C screen projector, each device type can also have multiple devices.

Comprehensive exemplary illustrations, comparing the display of the prior art in Fig. 6 with the display of this solution in Fig. 10 and Fig. 11, it can be found that, compared with the prior art, this solution can display on the screen of multiple data sources, According to the device type of the data source, the adjustment of the projection screen can be quickly realized. The user does not need to perform a preset operation when initiating projection. The efficient use of the screen area in the interactive tablet provides clear information presentation services in multi-person communication scenarios.

It should be noted that what is shown in FIG. 6 is the display effect in the interactive tablet, and what are shown in FIG. 6, FIG. 7 and FIG. The logo of is only used to indicate that it is a window indicating the same data source, and does not indicate a display on the same device.

On the basis of the above embodiments, this solution also includes step S130:

Step S130: When the number of data sources for screen projection changes from multiple to one, send a screen sending instruction to the data source, so that the terminal device corresponding to the data source sends the screen with the default screen parameters of the system as Cast screen.

Step S130 is used to restore the default full-screen display state of a projected screen when the number of data sources changes from multiple or zero to one, and the interactive panel sends a screen sending instruction to the data source, if the data source itself is a terminal device , then directly respond to the instruction; otherwise, or forward the instruction to the corresponding terminal device, and then respond. The screen sending command can be a pre-agreed command, and the terminal device will generate the screen projection screen by default after receiving it; complete sending of .

It needs to be emphasized that the above screen projection display change process is only an example under different combinations of data sources. During the process of changing the number or type of data source terminals, any change will cause the projection screen in this solution Variety.

When understanding this solution, the above step numbers should not be regarded as a limitation on the specific implementation sequence, and each step should be regarded as an idea for adjusting the projection screen during the entire projection display process. For example, during a certain use of the interactive tablet, there is only one data source terminal in the initial state, a data source terminal is added in the middle, a data source terminal is disconnected at the end, and the screen projection display is finally ended. Corresponding to the connection changes of the above data sources, in this case, step S130 is executed first, steps S110-S120 are executed in the middle, and step S130 is finally executed. It should be understood that this execution process does not exceed the overall design idea of this solution, but the specific reflected in the implementation process.

The above screen projection display method is used for a screen projection display device. The method includes: when receiving screen projection images from multiple data sources, according to the display parameters of the screen and the number of data sources, configure each data source. Screen parameters; wherein, the projection screen is used for displaying on the screen; the screen parameters are sent to the corresponding data source end, so that the terminal device corresponding to the data source end generates according to the received screen parameters And send the screencast. The interactive panel configures screen parameters for each data source according to the number of data sources and the display parameters of the screen, and sends the screen parameters to the corresponding data source, so that the terminal device corresponding to the data source generates a screen based on the received screen parameters. The screen projection improves the utilization rate of the screen and the display effect of the projection screen.

FIG. 12 is a method flow chart of a screen projection display method provided by an embodiment of the present invention, and the screen projection display method is used for a Type-C screen projection device. Please refer to Figure 12, the projection method includes:

Step S210: Receive the screen parameters sent by the screen projection display device.

Step S220: Reset the identification data of the extended display according to the screen parameters, and reconnect the display channel.

Step S230: Sending the image data received from the display channel as a screen projection screen to the screen projection display device for display.

The specific implementation process of this embodiment has been described in the previous embodiment corresponding to the method for implementing a screen projection display device. In addition, in step S210, the Type-C screen projector connects the display channel with the terminal device, and sends the image data received from the display channel as a screen projection screen to the screen projection display device for display. If the screen parameters sent by the projection display device are received during the sending process, the extended display identification data will be reset according to the screen parameters, and the display channel will be reconnected so that the terminal device can re-acquire the extended display identification data of the Type-C screen projector to re- The generated image parameters are sent to the Type-C screen projector. In addition, as mentioned above, as long as it is confirmed that there is a change in the connection or disconnection of the data source end, and the number of the changed data source end is multiple, it can be confirmed that the projection screen from multiple data source ends is received, triggering S110 and The operation of S120 will not be described repeatedly here.

FIG. 13 is a method flow chart of a screen projection display method provided by an embodiment of the present invention, and the screen projection display method is used in a terminal device. Please refer to Figure 13, the projection method includes:

Step S310: Receive the screen parameters sent by the screen projection display device or forwarded by the screen projection display device through the USB screen projector.

Step S320: displaying a screenshot area frame according to the screen parameters.

Step S330: Receive a position adjustment operation on the screenshot area frame, and adjust the display position of the screenshot area frame accordingly.

Step S340: Capture the image data of the screenshot area frame as a projected screen.

The specific implementation process of this embodiment has been described in the above-mentioned embodiments corresponding to the method for realizing the screen projection display by the projection screen display device, and repeated description is not repeated here.

FIG. 14 is a schematic structural diagram of a projection screen display device provided by an embodiment of the present invention. Referring to FIG. 14 , the screen projection display device includes a parameter configuration unit 110 and a parameter sending unit 120 .

Wherein, the parameter configuration unit 110 is configured to configure screen parameters for each of the data source terminals according to the display parameters of the screen and the number of data source terminals when receiving screen projection pictures from multiple data source terminals; wherein, the projection screen The screen picture is used to display on the screen; the parameter sending unit 120 is used to send the picture parameters to the corresponding data source end, so that the terminal equipment corresponding to the data source end generates and Send the screencast.

On the basis of the above embodiments, the multiple data sources include any one or more of Type-C screen projectors, terminal devices, and USB screen projectors;

Correspondingly, the parameter sending unit 120 includes:

The first sending module is used to send the screen parameters to the Type-C screen projector, so that the Type-C screen projector resets the extended display identification data according to the screen parameters, and reconnects the display channel;

and / or,

The second sending module is configured to send the screen parameters to the terminal device or the USB screen projector, so that the terminal device or the terminal device corresponding to the USB screen projector generates a screenshot area frame according to the screen parameters, and A projection screen is generated according to the display content in the screenshot area frame.

On the basis of the above embodiments, the parameter configuration unit 110 includes:

The area division module is used to divide the screen according to the preset division mode according to the display parameters of the screen and the number of data sources, confirm the parameters of each area, and configure the area parameters as the corresponding Describe the screen parameters of the data source.

On the basis of the above embodiments, the screen projection display device further includes:

The projection screen recovery unit is used to send a picture sending instruction to the data source when the number of data sources for projection is changed from multiple to one, so that the terminal device corresponding to the data source uses the default screen of the system The parameter sends the screen image as the screen projection image.

On the basis of the above embodiments, the parameter configuration unit 110 further includes:

The change confirmation module is used for when the data source of the projected screen changes, and receives the projected screen from multiple data sources after the change, according to the display parameters of the screen and the number of data sources, for each said data source Configuring screen parameters; wherein, the screen projection screen is used for displaying on the screen.

The screen projection display device provided in the embodiments of the present invention can be used to implement any screen projection display method provided in the above embodiments, and has corresponding functions and beneficial effects.

It is worth noting that in the above embodiment of the projection screen display device, the units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, The specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the present invention.

FIG. 15 is a schematic structural diagram of a Type-C screen projector provided by an embodiment of the present invention. Referring to Figure 15, the Type-C screen projector includes:

The first parameter receiving unit 210 is configured to receive the screen parameters sent by the projection screen display device;

A screen parameter reset unit 220, configured to reset the extended display identification data according to the screen parameters, and reconnect the display channel;

The screen projection picture sending unit 230 is configured to send the image data received from the display channel as a screen projection picture to the screen projection display device for display.

The Type-C screen projector provided in the embodiment of the present invention can be used to implement the corresponding screen projection display method provided in the above embodiments, and has corresponding functions and beneficial effects.

It is worth noting that in the above-mentioned embodiment of the Type-C screen projector, the units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be realized; In addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the present invention.

FIG. 16 is a schematic structural diagram of a terminal device provided by an embodiment of the present invention. Referring to Figure 16, the terminal equipment includes:

The second parameter receiving unit 310 is configured to receive the screen parameters sent by the screen projection display device or forwarded by the screen projection display device through the USB screen projection device;

A screenshot frame display unit 320, configured to display a screenshot area frame according to the screen parameters;

An adjustment operation receiving unit 330, configured to receive a position adjustment operation on the screenshot area frame, and correspondingly adjust the display position of the screenshot area frame;

The screenshot sending unit 340 is configured to capture the image data of the screenshot area frame as a screen projection image, and send it to the screen projection display device for display.

The terminal device provided in the embodiments of the present invention can be used to implement the corresponding screen projection display method provided in the above embodiments, and has corresponding functions and beneficial effects.

It is worth noting that, in the embodiments of the above-mentioned terminal equipment, the units and modules included are only divided according to the functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be realized; in addition, each function The specific names of the units are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the present invention.

FIG. 17 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention. As shown in Figure 17, the electronic device includes a processor 410, a memory 420, an input device 430, an output device 440, and a communication device 450; The processor 410 is taken as an example; the processor 410, memory 420, input device 430, output device 440, and communication device 450 in the electronic device can be connected through a bus or in other ways. In FIG. 17, the connection through a bus is taken as an example.

The memory 420, as a computer-readable storage medium, can be used to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the screen projection display method in the embodiment of the present invention (for example, the parameter configuration unit 110 and parameter sending unit 120). The processor 410 executes various functional applications and data processing of the electronic device by running the software programs, instructions and modules stored in the memory 420 , that is, realizes the above-mentioned screen projection method.

The memory 420 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the electronic device, and the like. In addition, the memory 420 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage devices. In some examples, the memory 420 may further include memory located remotely relative to the processor 410, and these remote memories may be connected to the electronic device through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input device 430 can be used to receive input numbers or character information, and generate key signal input related to user settings and function control of the electronic device. The output device 440 may include a display device such as a display screen.

The above-mentioned electronic equipment includes a multi-data source projection display device, which can be used to execute any multi-data source projection display method, and has corresponding functions and beneficial effects.

An embodiment of the present invention also provides a storage medium containing computer-executable instructions, and the computer-executable instructions are used to execute the multi-data source projection display method provided in any embodiment of the present application when executed by a computer processor. Related operations, and have corresponding functions and beneficial effects.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products.

Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein. The present application is described with reference to flowcharts and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram. These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram. These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory. Memory may include non-permanent storage in computer readable media, in the form of random access memory (RAM) and/or nonvolatile memory such as read only memory (ROM) or flash RAM. The memory is an example of a computer readable medium.

Computer-readable media, including both permanent and non-permanent, removable and non-removable media, can be implemented by any method or technology for storage of information. Information may be computer readable instructions, data structures, modules of a program, 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), 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 cartridge, tape magnetic disk storage or other magnetic storage device or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media excludes transitory computer-readable media, such as modulated data signals and carrier waves.

It should also be noted that the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes Other elements not expressly listed, or elements inherent in the process, method, commodity, or apparatus are also included. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the appended claims.

Claims (12)

1. A screen display method for a screen display device, the method comprising:

when receiving screen throwing pictures from a plurality of data source ends, configuring picture parameters for each data source end according to display parameters of a screen and the number of the data source ends; the screen throwing picture is used for displaying on the screen;

and sending the picture parameters to the corresponding data source end so that the terminal equipment corresponding to the data source end generates and sends a screen throwing picture according to the received picture parameters.

2. The method of claim 1, wherein the plurality of data sources comprises any one or more of a Type-C projector, a terminal device, and a USB projector;

correspondingly, the step of sending the picture parameters to the corresponding data source end so that the terminal equipment corresponding to the data source end generates and sends a screen throwing picture according to the received picture parameters includes:

transmitting the picture parameters to a Type-C screen projector, so that the Type-C screen projector resets the identification data of the expansion display according to the picture parameters, and reconnects a display channel;

and/or the number of the groups of groups,

and sending the picture parameters to a terminal device or a USB screen projector, so that the terminal device or the terminal device corresponding to the USB screen projector generates a screenshot area frame according to the picture parameters, and generates a screen projector according to display contents in the screenshot area frame.

3. The method according to claim 1 or 2, wherein the configuring picture parameters for each data source terminal according to the display parameters of the screen and the number of data source terminals, specifically, is:

and carrying out region division on the screen according to a preset division mode according to the display parameters of the screen and the number of the data source ends, confirming the parameters of each region, and configuring the region parameters as the picture parameters of the corresponding data source ends.

4. The method according to claim 1 or 2, further comprising:

when the number of the data source ends of the screen is changed from a plurality of data source ends to one data source end, a picture sending instruction is sent to the data source end, so that terminal equipment corresponding to the data source end sends a screen picture serving as the screen casting picture by using a default screen parameter of the system.

5. The method according to claim 1 or 2, wherein when receiving the screen projection from the plurality of data sources, configuring the screen parameter for each data source according to the display parameter of the screen and the number of data sources; the screen projection picture is used for displaying on the screen, and further comprises:

when the data source ends of the screen are changed, receiving screen throwing pictures from a plurality of data source ends after the change, and configuring picture parameters for each data source end according to display parameters of the screen and the number of the data source ends; the screen throwing picture is used for displaying on the screen.

6. The screen projection display method is used for a Type-C screen projector and is characterized by comprising the following steps of:

receiving picture parameters sent by a screen-throwing display device;

resetting the extended display identification data according to the picture parameters and reconnecting the display channels;

and sending the image data received from the display channel to the screen display device as a screen projection picture for display.

7. A screen projection display method is used for terminal equipment and is characterized by comprising the following steps:

receiving picture parameters sent by a screen-throwing display device or forwarded by the screen-throwing display device through a USB screen-throwing device;

displaying a screenshot area frame according to the picture parameters;

receiving position adjustment operation of the screenshot area frame, and correspondingly adjusting the display position of the screenshot area frame;

and intercepting the image data of the screenshot area frame into a screen projection picture.

8. A projection display device, comprising:

the parameter configuration unit is used for configuring picture parameters for each data source terminal according to the display parameters of the screen and the number of the data source terminals when receiving the screen throwing pictures from the plurality of data source terminals; the screen throwing picture is used for displaying on the screen;

And the parameter sending unit is used for sending the picture parameters to the corresponding data source end so that the terminal equipment corresponding to the data source end generates and sends a screen throwing picture according to the received picture parameters.

9. A Type-C screen projector, comprising:

the first parameter receiving unit is used for receiving picture parameters sent by the screen-throwing display equipment;

a picture parameter resetting unit for resetting the extended display identification data according to the picture parameter and reconnecting the display channel;

and the screen projection picture sending unit is used for sending the image data received from the display channel to the screen projection display equipment as a screen projection picture for display.

10. A terminal device, comprising:

the second parameter receiving unit is used for receiving picture parameters sent by the screen throwing display equipment or forwarded by the screen throwing display equipment through the USB screen throwing device;

the screenshot frame display unit is used for displaying a screenshot area frame according to the picture parameters;

the adjustment operation receiving unit is used for receiving position adjustment operation on the screenshot area frame and correspondingly adjusting the display position of the screenshot area frame;

and the screenshot sending unit is used for intercepting the image data of the screenshot area frame into a screen projection picture and sending the screen projection picture to the screen projection display equipment for display.

11. An electronic device, comprising:

one or more processors;

a memory for storing one or more programs;

when executed by the one or more processors, causes the electronic device to implement the method of on-screen display of any of claims 1-7.

12. A computer readable storage medium having stored thereon a computer program, which when executed by a processor implements a method of on-screen display as claimed in any one of claims 1 to 7.

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