A display control method and a display device

Abstract

The present application discloses a display control method and a display device. The method includes: obtaining a first image signal and a second image signal from an electronic device, where the first image signal and the second image signal are used for display in different display areas; when in a first display mode, controlling the first image signal to be output and displayed on a first display device, and controlling the second image signal to be output and displayed on a second display device connected to the first display device; when in a second display mode, controlling the first image signal and the second image signal to be respectively output and displayed in two different display areas of the first display device.

Description

Technical Field

[0001] The present application relates to control technology, and more specifically, to a display control method and a display device. Background Art

[0002] In order to improve office or learning efficiency, the scene demand for multi-screen display of content from different signal sources is becoming increasingly obvious. However, current display devices cannot meet the increasingly diverse display needs of users. Summary of the Invention

[0003] In view of this, the present application provides the following technical solutions:

[0004] A display control method, applied to a first display device, includes:

[0005] Obtain an image signal from an electronic device, where the image signal includes at least a first image signal and a second image signal, the first image signal corresponds to first configuration information, the second image signal corresponds to second configuration information, and the first configuration information and the second configuration information are used to enable the electronic device to determine two different display areas;

[0006] Determine the current display mode of the first display device;

[0007] When the current display mode is a first display mode, control the first image signal to be output and displayed on the first display device corresponding to the first configuration information, and control the second image signal to be output and displayed on a second display device connected to the first display device and corresponding to the second configuration information;

[0008] When the current display mode is a second display mode, control the first image signal and the second image signal to be respectively output and displayed in two different display areas of the first display device, and the two different display areas respectively correspond to the first configuration information and the second configuration information.

[0009] Optionally, among them:

[0010] Before entering the first display mode, the first display device sends its own first configuration information and the second configuration information of the second display device connected thereto to the electronic device, where the first configuration information includes display parameter information of the first display device, and the second configuration information includes display parameter information of the second display device;

[0011] Before entering the second display mode, the first display device creates the first configuration information and the second configuration information, and sends the first configuration information and the second configuration information to the electronic device, where the first configuration information includes display parameter information of a first display area of the first display device, and the second configuration information includes display parameter information of a second display area of the first display device.

[0012] Optionally, controlling the first image signal and the second image signal to be respectively output and displayed in two different display areas of the first display device includes:

[0013] The processor obtains the first image signal and the second image signal through a first interface;

[0014] The processor sends the second image signal to the switching device;

[0015] The processor obtains the second image signal output by the switching device to the processor through a second port;

[0016] The processor controls the first image signal to be output and displayed in the first display area of the first display device and the second image signal to be output and displayed in the second display area of the first display device.

[0017] Optionally, the image signal further includes a third image signal, and the method further includes:

[0018] When the current display mode is the third display mode, controlling the first image signal and the second image signal to be respectively output and displayed in two different display areas of the first display device, and controlling the third image signal to be output and displayed on the second display device;

[0019] The controlling the first image signal and the second image signal to be respectively output and displayed in two different display areas of the first display device, and controlling the third image signal to be output and displayed on the second display device includes:

[0020] The processor obtains the first image signal, the second image signal, and the third image signal through a first interface;

[0021] The processor sends the second image signal and the third image signal to the switching device;

[0022] The processor obtains the second image signal output by the switching device to the processor through a second port, and controls the switching device to send the third image signal to the second display device for output and display;

[0023] The processor controls the first image signal to be output and displayed in the first display area of the first display device and the second image signal to be output and displayed in the second display area of the first display device.

[0024] Optionally, it further includes:

[0025] Receiving a switching signal, and based on the switching signal, controlling the first display device to switch from the first display mode to the second display mode, or from the second display mode to the first display mode. The switching signal is generated by an input device of the first display device or automatically generated by the first display device when a first condition is detected.

[0026] Optionally, when the first display device is in the second display mode, if it is detected that a second display device is connected, it is determined that the first condition is satisfied, and it is controlled to switch from the second display mode to the first display mode;

[0027] The control to switch from the second display mode to the first display mode includes:

[0028] The processor controls the first image signal to be output and displayed on the first display device;

[0029] The processor sends the second image signal to a switching device, so that the switching device sends the second image signal to the second display device for output and display;

[0030] Or,

[0031] When the first display device is in the first display mode, if it is detected that the connection with the second display device is interrupted, it is determined that the first condition is satisfied, and it is controlled to switch from the first display mode to the second display mode.

[0032] Optionally, the first image signal is parsed into a first image, the second image signal is parsed into a second image, and the input device of the display device generating the switching signal includes:

[0033] The first display device displays a fourth image;

[0034] Generating a switching signal based on a selection signal of the input device for the display content in the fourth image;

[0035] Wherein, the first image and the second image are obtained by the first display device parsing the received first image signal and second image signal, the fourth image is locally generated by the first display device, the second way of outputting the fourth image is different from the first way of outputting the first image and the second image, and the display priority of the second way is higher than that of the first way.

[0036] A display device, comprising:

[0037] A display unit for displaying an image;

[0038] A first interface for connecting to an electronic device and obtaining an image signal from the electronic device, the image signal at least including a first image signal and a second image signal for display in different display areas;

[0039] A processor for, in a first display mode, controlling the first image signal to be output and displayed by the display unit, and controlling the second image signal to be output to a second display device connected to the display device for display, and in a second display mode, controlling the first image signal and the second image signal to be respectively output and displayed in two different display areas of the display unit;

[0040] A second interface for connecting to the second display device and, in the first display mode, outputting the second image signal to the second display device.

[0041] Optionally, further comprising:

[0042] A switching device connected to the processor for receiving the second image signal sent by the processor and, when the display device is in the first display mode, sending the received second image signal to the second interface, and when the display device is in the second display mode, outputting the received second image signal to a second port of the processor.

[0043] Optionally, further comprising:

[0044] An input device connected to the processor for collecting input information and generating a switching signal based on the input information, so that after receiving the switching signal, the processor controls a switch from the first display mode to the second display mode, or from the second display mode to the first display mode;

[0045] Alternatively, the switching signal is generated by the processor when it monitors that the second interface switches from a first connection state to a second connection state, the first connection state and the second connection state being used to indicate whether the second interface is connected to the second display device. Description of the Drawings

[0046] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0047] Figure 1 Flowchart of a display control method disclosed in an embodiment of the present application;

[0048] Figure 2 Example diagram of the connection relationship of display devices in a daisy chain implementation scenario;

[0049] Figure 3 Example diagram of dividing a display screen into two display areas;

[0050] Figure 4 Flowchart of display control for the second display mode disclosed in an embodiment of the present application;

[0051] Figure 5 Example diagram of the distribution of display areas in the third display mode disclosed in an embodiment of the present application;

[0052] Figure 6 Schematic diagram of the mode switching control process disclosed in an embodiment of the present application;

[0053] Figure 7 Schematic diagram of the implementation method for mode switching disclosed in an embodiment of the present application;

[0054] Figure 8 Schematic diagram of the structure of a display device disclosed in an embodiment of the present application;

[0055] Figure 9 Schematic diagram of the structure of another display device disclosed in an embodiment of the present application;

[0056] Figure 10 Schematic diagram of the hardware circuit of a display device disclosed in an embodiment of the present application. Detailed implementation manners

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of them. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0058] Embodiments of the present application can be applied to a display device. The present application does not limit the product form of the display device, which may include but is not limited to an independent display, a smart device with a display device, etc., and can be selected according to application requirements.

[0059] Figure 1 FIG. 4 is a flowchart of a display control method disclosed in an embodiment of the present application. The display control method shown can be applied to a display device with an independent display processing function. Combining Figure 1 as shown, the display control method may include:

[0060] Step 101: Obtain an image signal from an electronic device. The image signal includes at least a first image signal and a second image signal. The first image signal corresponds to first configuration information, and the second image signal corresponds to second configuration information. The first configuration information and the second configuration information are used to enable the electronic device to determine two different display areas.

[0061] The electronic device may be a smart phone, a tablet computer, a wearable device, a personal computer, a netbook, etc. The present application does not make a fixed limitation on its specific implementation. In this implementation, the electronic device may be an electronic device with a display device or an electronic device without a display device, as long as it can output a display signal in a wired or wireless manner.

[0062] Among them, the image signal is an image signal processed by the graphics card of the electronic device based on the received configuration information after obtaining the configuration information of the display area. The configuration information may be EDID (Extended display identification data), which includes display identification data. In this implementation, the content of the configuration information includes but is not limited to the resolution, refresh rate, area identifier, etc. of the display area. In an embodiment of the present application, the configuration information includes at least first configuration information and second configuration information. These two configuration information indicate two different display areas, and the two different display areas can perform independent control display of image signals. Therefore, the graphics card of the electronic device can process and generate two image signals for independent display in the two different display areas respectively based on at least the first configuration information and the second configuration information, that is, the first image signal and the second image signal.

[0063] It should be noted that the two different display areas indicated by the first configuration information and the second configuration information may be display areas of different display devices or display areas of the same display device. For example, on a display screen, there are two display areas on the left and right. Different signal sources may be displayed in the left display area and the right display area. Both the first configuration information and the second configuration information are sent by the execution subject of the display control method described in this embodiment to the graphics card of the electronic device. Based on the first configuration information and the second configuration information, the graphics card can only determine two different display areas and process and generate two image signals corresponding to different display areas respectively. However, the graphics card does not know or does not need to know whether these two different display areas really correspond to two display devices or are located on the same display device.

[0064] The first image signal and the second image signal may be the same image signal or different image signals, and can be specifically controlled and processed based on the actual needs of the user.

[0065] Step 102: Determine the current display mode of the first display device, and proceed to Step 103 or Step 104.

[0066] In different display modes, the display processing logics of the display control method are also different. Therefore, before performing the image signal display task, it is necessary to first determine the display mode of the current device. The determination of the display mode can be based on, but not limited to, the flag bit indicating the display mode within the system, the user-triggered selection signal, or some detection signals.

[0067] Step 103: When the current display mode is the first display mode, control the first image signal to be output and displayed on the first display device corresponding to the first configuration information, and control the second image signal to be output and displayed on the second display device connected to the first display device and corresponding to the second configuration information.

[0068] In the first display mode, the different display areas described above are located on different display devices, and its implementation form can be the daisy-chain implementation form. The daisy-chain function can connect multiple displays in series to a single interface. For the schematic diagram of the daisy-chain implementation, please refer to Figure 2 , a laptop computer and two displays are connected in series, and different image contents can be displayed on different displays. The laptop computer with a display device (Display1) can be the electronic device described in the embodiments of the present application, the Display2 monitor can be the execution subject of the display control method of the present application, that is, the first display device, and the Display3 monitor is the second display device. Of course, Figure 2This is just a simple example of daisy-chain implementation. In practical applications, Display4, Display5, etc. can be serially connected after Display3 in sequence.

[0069] In the specific implementation, after the first display device receives the image signal, it only performs restoration and parsing processing on the first image signal, and outputs and displays the image content obtained from the parsing processing locally; while sending the second image signal to the second display device connected to it. After receiving the second image signal, the second display device restores and parses the second image signal and outputs and displays it locally.

[0070] It can be understood that when the image signal obtained from the electronic device further includes a third image signal or even a fourth image signal, a third display device and a fourth display device will be serially connected after the second display device in sequence. Then, the image signal received by the second display device includes not only the second image signal, but also the third image signal and the fourth image signal. In this scenario, the second display device only restores, parses and outputs the second image signal that needs to be processed and displayed on itself, and does not perform any processing on the third image signal and the fourth image signal, but directly transmits them to the third display device. The processing processes of other serially connected display devices are similar to that of the second display device, only restoring and parsing the display content that needs to be output locally, and transmitting other irrelevant image signals to the next display device.

[0071] Step 104: When the current display mode is the second display mode, control the first image signal and the second image signal to be output and displayed in two different display areas of the first display device respectively, and the two different display areas respectively correspond to the first configuration information and the second configuration information.

[0072] In the second display mode, the different display areas described above are located on the same display device. It should be noted that there are different forms for the first image signal and the second image signal to be both displayed on the display screen of the first display device. For example, the two display areas corresponding to the first image signal and the second image signal can be distributed in an adjacent split-screen form such as left-right distribution or up-down distribution; or, the two display areas can also be presented in a picture-in-picture form to form a surrounding split-screen form. The present application does not impose a fixed limit on the arrangement form of the two display areas. When the two display areas corresponding to the first image signal and the second image signal are presented in a picture-in-picture form, the surrounding display area and the surrounded display area are two completely independent display areas without overlapping or occlusion.

[0073] In the second display mode, it is equivalent to physically dividing the display screen of the first display device into at least two displays. As Figure 3As shown, it is an example diagram of dividing a display screen into two display areas. The first display device therein can be used to display a first image signal, and the second display device can be used to display a second image signal. The display contents of the two display areas can be configured independently, and the display processes do not interfere with each other.

[0074] In the display control method described in this embodiment, two display modes can be implemented on the first display device. When there are enough display devices in the application environment, the first display device can control different image signals to be displayed on different display devices respectively; when there are not enough display devices in the application environment and multiple image signals need to be displayed, the first display device can divide its own display screen into different display areas for respectively displaying different image signals. This implementation makes the display control function of the first display device more perfect and has a wider application range, thus better meeting the diverse usage needs of users.

[0075] Before the formal implementation of the display control method described in the above embodiment, the first display device needs to send the configuration information of the display area to the graphics card of the electronic device so that it can process and obtain the corresponding image signals based on the configuration information.

[0076] Specifically, before entering the first display mode, the first display device can send its own first configuration information and the second configuration information of the second display device connected to it to the electronic device, where the first configuration information includes the display parameter information of the first display device, and the second configuration information includes the display parameter information of the second display device.

[0077] Combined with Figure 2 As shown, the first display device is directly connected to the laptop, while the second display device is not directly connected to the laptop. Therefore, the second display device can only communicate with the laptop through the first display device. In the implementation of sending the configuration information to the laptop, after the first display device establishes a connection with the laptop, it can first send its own first configuration information to the laptop; then, after receiving the second configuration information sent by the second display device, it forwards the second configuration information to the laptop. Thus, after the laptop receives the configuration information of the corresponding first display device and the second display device, it processes and obtains two image signals.

[0078] Or, in another implementation, after the first display device establishes a connection with the laptop, it will not send its first configuration information to the laptop separately, but will collect the second configuration information sent by the subsequent cascaded second display device and then send the configuration information of different display devices together to the laptop in a unified manner.

[0079] Before entering the second display mode, the first display device creates the first configuration information and the second configuration information, and sends the first configuration information and the second configuration information to the electronic device, where the first configuration information includes display parameter information of a first display area of the first display device, and the second configuration information includes display parameter information of a second display area of the first display device.

[0080] In the second display mode, although there is the first configuration information and the second configuration information corresponding to two display areas respectively, there are actually not two independent display devices. Therefore, the first configuration information and the second configuration information are information created by the first display device. It can be understood that the first display device simulates the display screen as two independent displays, and sends the display parameter information of the two independent displays to the electronic device. It should be noted that the electronic device itself can only determine whether to process multiple image signals through the configuration information sent by the first display device, and does not care whether there are actually multiple display devices in reality.

[0081] Before entering the first display mode or the second display mode, there are various implementation forms for sending the first configuration information and the second configuration information to the electronic device. For example, in one implementation, the first configuration information and the second configuration information can be sent to the electronic device immediately after the electronic device and the first display device establish a connection, so as to ensure that the two configuration information are in a state that can be accessed at any time relative to the electronic device; in another implementation, it can also be based on actual requirements. After the first display device receives an instruction to perform multi-image signal processing, the first configuration information and the second configuration information are sent to the electronic device. In other implementations, the first configuration information and the second configuration information can also be sent to the electronic device at any time after the electronic device and the first display device establish a connection. For example, when the first display device detects that the second display device is connected, it indicates that the user needs multi-screen display, and the first configuration information and the second configuration information can be sent to the electronic device based on the trigger condition of "connecting to the second display device". Of course, in some cases, the sending of the configuration information does not require a trigger condition, such as sending the first configuration information and the second configuration information after a first time period when the electronic device and the first display device establish a connection; this implementation considers that the electronic device and the first display device still need to perform handshake interactions of some other basic information at the beginning of establishing a connection. After these handshake interactions of the basic information are completed, the configuration information is sent, which can disperse the data processing pressure at the beginning of establishing a connection.

[0082] In an implementation, in the first display mode or the second display mode, the second image signal is sent to the switching device through a data protocol corresponding to the first display mode. The data protocol corresponding to the first display mode can be the DisplayPort (DP) communication protocol.

[0083] Figure 4 This is the display control flowchart of the second display mode disclosed in the embodiments of the present application. Refer to Figure 4 As shown, in the foregoing embodiments, controlling the first image signal and the second image signal to be respectively output and displayed in two different display areas of the first display device may include:

[0084] Step 401: The processor obtains the first image signal and the second image signal through the first interface.

[0085] Wherein, the first interface is an interface connected to the electronic device. The first interface may be a DisplayPort interface, a USB Type-C interface, or other interfaces supporting image signal transmission. The present application does not limit this.

[0086] Step 402: The processor sends the second image signal to the switching device.

[0087] The switching device can implement switching between different communication lines, and different communication lines can transmit the second image signal to different devices or apparatuses. In this embodiment, the communication lines that the switching device can connect include two, one is the line connecting the second display device, and the other is the line connecting the processor.

[0088] Since in the second display mode, both the first image signal and the second image signal are output and displayed on the first display device, the switching device connects the line connecting the processor in the second display mode to realize the feedback of the second image signal to the processor.

[0089] Step 403: The processor obtains the second image signal output by the switching device to the processor through the second port.

[0090] Similar to the first display mode, in the second display mode, the processor still retains the first image signal and transmits the second image signal to the switching device; the difference is that in the second display mode, the transmission destination of the second image signal is still the processor; the implementation process can be understood as transmitting the second image signal from the switching device to an input port of the processor connected to the switching device, that is, the second port, thereby realizing the feedback of the second image signal.

[0091] In implementation, there is a line connection relationship between the switching device and the second port, and the switching device can transmit the second image signal to the processor through the second port. The second port is different from the first port. Wherein, the first port is an input port of the processor, and it is connected to the first interface provided on the housing of the first display device.

[0092] Step 404: The processor controls the first image signal to be output and displayed in the first display area of the first display device and the second image signal to be output and displayed in the second display area of the first display device.

[0093] In one implementation, the first display device may splice the image frames of the first image corresponding to the first image signal and the image frames of the second image corresponding to the second image signal according to the arrangement form of the two display areas, and then output and display the spliced image on the display screen of the first display device, presenting the effect that the two-channel signal contents are displayed in sub-areas on the display screen of the first display device.

[0094] In another implementation, the first display device may directly process and display the first image signal, while the second image signal needs to be sent to the switching device and then back to the processor by the switching device and then processed and displayed. Therefore, there is a certain delay in the display of the second image signal on the first display device relative to the display of the first image signal on the first display device. To ensure the synchronization of the output times of the first image signal and the second image signal on the first display device, the delay time of the output of the second image signal on the first display device relative to the output of the first image signal on the first display device can be determined through some tests, and then the output time of the first image signal is pushed back for a period of time, and this period of time is the delay time to ensure the time matching of the output contents of the first image signal and the second image signal.

[0095] In another implementation, the image signal further includes a third image signal, and the display control method may further include: when the current display mode is the third display mode, controlling the first image signal and the second image signal to be respectively output and displayed in two different display areas of the first display device, and controlling the third image signal to be output and displayed on the second display device.

[0096] The implementation corresponding to the third display mode is that the first display device is a hard split-screen display, and at the same time, the first display device and the second display device belong to the daisy chain technology implementation. Figure 5 This is an example diagram of the distribution of the display area in the third display mode disclosed in the embodiments of the present application, which can be combined with Figure 5 to understand the specific implementation of the third display mode.

[0097] In the third display mode, in addition to the first configuration information and the second configuration information, the configuration information sent by the first display device to the electronic device at least further includes third configuration information, and the image signals received by the first display device in addition to the first image signal and the second image signal at least further include third image signals. In the implementation, the first display device may parse and restore the first image signal and control its content inFigure 5 is displayed in the left half display area of the first display device, and at the same time, the second image signal and the third image signal are sent to the switching device, and the switching device then sends the second image signal back to the processor, so that the content of the second image signal is Figure 5 displayed in the display area of the right half of the first display device in []. The switching device also sends the third image signal to the second display device, so that the content of the third image signal can be displayed in the display area of the second display device. It should be noted that in this example, only three-way image signals are used to introduce the implementation. In actual applications, the image signals received by the first display device can also include more-way image signals. Each connected display device can only implement the daisy-chain function, or implement both the hard-split screen function and the daisy-chain function at the same time.

[0098] Based on the above content, controlling the first image signal and the second image signal to be respectively output and displayed in two different display areas of the first display device, and controlling the third image signal to be output and displayed in the second display device may include: the processor obtains the first image signal, the second image signal, and the third image signal through the first interface; the processor sends the second image signal and the third image signal to the switching device; the processor obtains the second image signal output by the switching device to the processor through the second port, and controls the switching device to send the third image signal to the second display device for output and display; the processor controls the first image signal to be output and displayed in the first display area of the first display device and the second image signal to be output and displayed in the second display area of the first display device.

[0099] In the third display mode, the switching device needs to send the second image signal back to the processor and needs to send the third image signal to the second display device. The specific implementation can be: the switching device includes a first switching device and a second switching device. The second image signal can be sent back to the processor through the first switching device, and the third image signal can be sent to the second display device through the second switching device; or, the switching device can be controlled by time-division control technology to perform switching operations at a relatively high frequency to ensure that the second image signal is sent back to the processor while the third image signal is sent to the second display device.

[0100] The switching of the display modes introduced above only involves the switching among the first display mode, the second display mode, and the third display mode. In practical applications, it is also possible to implement the switching from the fourth display mode to the first display mode or the second display mode. Among them, the fourth display mode can be a conventional display mode, that is, a mode in which there is no need to process multiple image signals, and only one image signal of the electronic device is received and parsed for output. The switching from the fourth display mode to the first display mode, the second display mode, or the third display mode can be achieved by modifying the configuration information or by triggering through hotkeys.

[0101] For example, in an application scenario that only includes a first display device, the first display device is connected to the electronic device and only sends configuration information representing one display area. Subsequently, it only receives one image signal, parses and outputs the display of the unique image signal. This implementation corresponds to the above-mentioned fourth display mode. After the user triggers to enable the second display mode, the first display device enters the second display mode, receives two image signals, and controls the corresponding contents of the two image signals to be output and displayed in different display areas of the first display device. Then, when the user triggers to exit the second display mode, the first display device returns to the fourth display mode.

[0102] Another example is in a scenario that includes a first display device and a second display device. If the original working state is that the first display device is in the second display mode, that is, the first display device displays the display contents of two image signals in different areas, and the second display device has no display content. Subsequently, when the user triggers to turn off the second display mode, since two image signals need to be processed for display, the system can automatically switch to the first display mode when it determines that there is an available second display device, that is, the first display device processes and displays one image signal, and the second display device processes and displays the other image signal.

[0103] In other implementations, the display control method may further include: receiving a switching signal, and based on the switching signal, controlling the first display device to switch from the first display mode to the second display mode, or from the second display mode to the first display mode. The switching signal is generated by the input device of the first display device or automatically generated by the first display device when detecting a first condition.

[0104] Understandably, the user can switch the display mode through manual control. For example, the user triggers to bring up the screen display menu, and through the selection of the content displayed in the screen display menu, the selection and switching of the display mode are realized. For example, the names of all display modes will be displayed in the screen menu. The user clicks on the second display mode with the mouse or directly touches and clicks on the second display mode through the touch screen, then the mouse or the touch screen will generate an input signal, which can be understood as the switching signal, that is, the switching signal is generated by the input device (mouse, touch screen, etc.). Of course, in some other implementations, the generation of the switching signal does not require bringing up the screen display menu. The user can operate on the preset button based on the preset instruction to trigger the switch to the corresponding display mode. For example, by long-pressing the preset button for 5s, the first display device automatically switches to the second display mode. In this implementation, the switching signal is triggered and generated by the input device (preset button).

[0105] When the first display device is in the second display mode, if it is detected that the second display device is connected, it can be determined that the first condition is satisfied, and the control is switched from the second display mode to the first display mode.

[0106] When the first display device is in the second display mode, both the first image signal and the second image signal are output and displayed on the first display device. In this case, if the first display device detects that the second display device is connected, it means that the user wants the first image signal and the second image signal to be displayed on two independent display devices. Then it can be determined that the first condition is satisfied, and the control is automatically switched from the second display mode to the first display mode, so that the second image signal can be transmitted to the second display device for output and display.

[0107] Specifically, the control to switch from the second display mode to the first display mode may include: the processor controls the first image signal to be output and displayed on the first display device; the processor sends the second image signal to the switching device, so that the switching device sends the second image signal to the second display device for output and display.

[0108] In addition, in one implementation, when the first display device is in the first display mode, if it is detected that the connection with the second display device is interrupted, it is determined that the first condition is satisfied, and the control is switched from the first display mode to the second display mode.

[0109] When the first display device is in the first display mode, the first image signal is output and displayed by the first display device, and the second image signal is output and displayed by the second display device. In this case, if the first display device detects that the connection with the second display device is disconnected, it indicates that the user wants the first image signal and the second image signal to be both displayed on the first display device. Then, it can be determined that the first condition is satisfied, and the first display mode is automatically controlled to be switched to the second display mode, so that the second image signal and the first image signal are both output and displayed on the first display device.

[0110] In a specific implementation, the first image signal is parsed into a first image, and the second image signal is parsed into a second image. The input device of the display device generating a switching signal may include: displaying a fourth image on the first display device, and generating a switching signal based on a selection signal of the input device for the display content in the fourth image. Wherein, the first image and the second image are obtained by the first display device parsing the received first image signal and second image signal, the fourth image is locally generated by the first display device, and the second way of outputting the fourth image is different from the first way of outputting the first image and the second image; the display priority of the second way is higher than that of the first way, so that when the fourth image overlaps and is displayed with the first image and / or the second image, the fourth image can block or affect the first image and / or the second image.

[0111] The second way of outputting and displaying the fourth image is different from the first way of restoring, parsing and outputting the first image signal. In one implementation, the fourth image may be an OSD (on-screen display) image, which is generated or read by the operating system of the first display device, and the user can trigger the generation of a switching signal through the on-screen menu. The display priority of the on-screen menu image is higher than that of the image signal. In the implementation, the on-screen menu image can be presented in a semi-transparent manner or in a manner of blocking the corresponding content of the image signal.

[0112] Of course, in addition to the above-mentioned way of triggering and generating a switching signal through the OSD, there are other ways to realize the switching of the display mode. For example, the switching signal can be triggered and generated through a hot key. To better understand this implementation, the following will be combined with Figure 6 and Figure 7 to give an example introduction, where Figure 6 is a schematic diagram of the mode switching control flow disclosed in the embodiment of the present application, Figure 7 is a schematic diagram of the implementation manner that the mode switching should achieve in the embodiment of the present application. In Figure 6 and Figure 7In the illustrated example, the first display mode corresponds to the Daisy chain function, and the second display mode corresponds to the hard split screen function (displaying different signal sources in different regions on one monitor); the switching device DP Switch realizes switching control through GPIO (General-purpose input / output) signals. Specifically, the Daisy chain function and the hard split screen function can be realized by controlling the high and low levels of GPIO respectively. When the GPIO is at a high level, the Daisy chain function is enabled and set as the default state.

[0113] See Figure 6 As shown, since the GPIO of the preset DP Switch is at a high level, when multiple display devices are connected in series using DP cables, the Daisy chain function will be automatically realized. At this time, a special instruction for the preset key hotkey inside the processor: when the key is set to a long-press trigger instruction for 5 seconds, after the user triggers the instruction, the GPIO high level will be pulled to a low level, realizing the hard split screen function; when the key is set to a long-press trigger instruction for 3 seconds, after the user triggers the instruction, the GPIO will be restored to the default high level, realizing the Daisy chain function.

[0114] See Figure 7 As shown, whether in the realization of the Daisy chain or the hard split screen, the switching of the display mode can be realized through the OSD screen menu. Since the first display mode corresponding to the Daisy chain is the default mode, therefore, in its OSD screen menu, the Daisy chain function can be turned off through the off key; in the first display mode corresponding to the Daisy chain, the content and layout of the OSD screen menus of multiple serially connected display devices are the same. In the second display mode corresponding to the hard split screen, the OSD screen menu includes an on key for controlling the activation of the hard split screen function and an off key for controlling the deactivation of the hard split screen function, so that the start and stop of the hard split screen function can be controlled based on these two keys.

[0115] In addition, there is also a hotkey on the display device, that is Figure 7 the key marked by the square box. The system presets the long-press shortcut instruction for the key, and the user can quickly switch between the two implementation functions, namely the Daisy chain function and the hard split screen function, by long-pressing this hotkey.

[0116] The switching of different display modes introduced in this embodiment not only includes the on / off of a certain display mode but also the switching between different display modes.

[0117] In the foregoing content, it is respectively introduced how the first display device controls the parsing, restoration, and output display of the image signal after entering the first display mode, the second display mode, and the third display mode. The first display mode, the second display mode, and the third display mode here can be realized for mode activation and mode deactivation by manually adjusting the OSD screen menu, such as Figure 7In [the device], the "on" button or "off" button in the screen menu can be used to control the activation or deactivation of the corresponding display mode. It should be noted that after a certain display mode is activated by triggering the "on" button in the screen menu, if the "off" button in the screen menu is subsequently triggered to exit the display mode, the first display device can return to the display mode or working state before entering the display mode. This application does not impose a fixed restriction on this.

[0118] Meanwhile, in a display mode, the switch from one display mode to another can be triggered manually or automatically. For example, the aforementioned manual trigger of the hot key can be used to control the switch to the corresponding display mode by the long-press duration.

[0119] For the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that this application is not limited by the described action sequence, because according to this application, certain steps can be carried out in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0120] In the above embodiments disclosed in this application, the method is described in detail. The method of this application can be implemented by devices in various forms. Therefore, this application also discloses a display device, and specific embodiments are given below for detailed description.

[0121] Figure 8 FIG. [number] is a schematic structural diagram of a display device disclosed in an embodiment of this application. Since the display device, the processor, and the first interface may be blocked in actual situations, Figure 8 the processor and the first interface are shown in dotted lines. Refer to Figure 8 As shown, the display device 80 may include:

[0122] A display device 81 for displaying images.

[0123] A first interface 82 for connecting to an electronic device and obtaining an image signal from the electronic device. The image signal at least includes a first image signal and a second image signal for displaying in different display areas. The first interface 82 may be a DP interface, a USB Type-C, or other interfaces supporting image signal transmission.

[0124] A processor 83, which is used to control the first image signal to be output and displayed on the display device 71 in the first display mode, and control the second image signal to be output to other display devices connected to the display device for display. In the second display mode, it controls the first image signal and the second image signal to be respectively output and displayed in two different display areas of the display device 81.

[0125] A second interface 84, which is used to connect to a second display device and output the second image signal to the second display device in the first display mode.

[0126] Among them, the first interface can be an interface on the housing of the first display device, which can be connected to the first port of the processor, so that the image signal sent from the electronic device can be directly transmitted to the processor through the first port. The first interface and the second interface can both be arranged on the housing of the first display device for connecting to other devices or apparatuses outside the first display device.

[0127] There can be multiple first interfaces, and different first interfaces can support different communication protocols. For example, some first interfaces support the DP protocol, and another part of the first interfaces support the USB Type-C protocol. However, the image signals output by the switching device are all signals of the DP protocol. Therefore, the protocol supported by the image signals output by the switching device can be the same as or different from the protocol types supported by the first interfaces.

[0128] The display device described in this embodiment can support at least two display modes. When there are other display devices in the application environment, the display device can control different image signals to be displayed on different display devices respectively; when there are no other display devices in the application environment and multiple image signals need to be displayed, the display device can divide its own display screen into different display areas for respectively displaying different image signals. This implementation makes the display control function of the display device more perfect and has a wider application range, thus better meeting the diverse usage needs of users.

[0129] Figure 9 It is a schematic structural diagram of another display device disclosed in the embodiment of the present application. Combining Figure 9 As shown, in another implementation, the display device 80 further includes a switching device 85, where:

[0130] The switching device 84 is connected to the processor, and is used to receive the second image signal sent by the processor, and when the display device is in the first display mode, send the received second image signal to the second interface, and when the display device is in the second display mode, output the received second image signal to the second port of the processor.

[0131] Figure 10 This is a schematic diagram of the hardware circuit of a display device disclosed in an embodiment of the present application. In combination with Figure 10 As shown, in a specific implementation, the processor is shown as a Scaler chip, and the switching device is shown as a DP Switch module. In the implementation, when the Scaler issues the command DP OUT, the two functions of daisy chain and hard split screen are respectively realized by controlling the high and low levels of the GPIO of the DP Switch. When the preset default GPIO is at a high level, the daisy chain channel will be opened. At this time, multiple monitors are connected in series with a DP cable to realize the daisy chain function. When the hard split screen function is enabled, the GPIO will be pulled to a low level, and the daisy chain channel will be closed. At this time, the hard split screen function is realized under the DP / USB Type-C signal.

[0132] In one implementation, the processor may further include: an input device, connected to the processor, for collecting input information and generating a switching signal based on the input information, so that after receiving the switching signal, the processor controls the switching from the first display mode to the second display mode, or from the second display mode to the first display mode; alternatively, the switching signal is generated by the processor when it monitors that the second interface switches from the first connection state to the second connection state, and the first connection state and the second connection state are used to represent whether the second interface is connected to the second display device.

[0133] The input device may send a switching signal to the switching device, so that after receiving the switching signal, the switching device switches the transmission path of the second image signal. The transmission path of the second image signal includes a transmission path connecting the second display device and a transmission path connecting the second port. Continuing with Figure 10 the example content, the instruction transmission port may transmit a GPIO high level signal or a GPIO low level signal.

[0134] For the specific function implementation of each structural component of the display device in the above embodiment, reference may be made to the corresponding content introduction in the method embodiment, and details will not be repeated here.

[0135] The present application also discloses a display control device, which may include:

[0136] A signal acquisition module, configured to obtain an image signal from an electronic device. The image signal includes at least a first image signal and a second image signal. The first image signal corresponds to first configuration information, and the second image signal corresponds to second configuration information. The first configuration information and the second configuration information are used to enable the electronic device to determine two different display areas.

[0137] A mode determination module is used to determine the current display mode of the first display device.

[0138] A display control module is used to control the first image signal to be output and displayed on the first display device corresponding to the first configuration information when the current display mode is the first display mode, and to control the second image signal to be output and displayed on the second display device connected to the first display device and corresponding to the second configuration information; and to control the first image signal and the second image signal to be output and displayed in two different display areas of the first display device, respectively, when the current display mode is the second display mode, and the two different display areas correspond to the first configuration information and the second configuration information, respectively.

[0139] The display control device in the above embodiment includes a processor and a memory. The signal acquisition module, mode determination module, display control module, etc. in the above embodiment are all stored in the memory as program modules, and the processor executes the above program modules stored in the memory to realize corresponding functions.

[0140] The processor includes a kernel, which retrieves the corresponding program module from the memory. One or more kernels can be set, and the processing of the access data can be realized by adjusting the kernel parameters.

[0141] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0142] An embodiment of the present application provides a storage medium on which a program is stored. When the program is executed by a processor, the display control method described in the above embodiment is implemented.

[0143] An embodiment of the present application provides a processor, which is used to run a program, wherein the display control method described in the above embodiment is executed when the program is run.

[0144] Furthermore, this embodiment provides an electronic device, including a processor and a memory, wherein the memory is used to store executable instructions of the processor, and the processor is configured to execute the display control method described in the above embodiment by executing the executable instructions.

[0145] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method section.

[0146] It should also be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0147] The steps of the methods or algorithms described in connection with the embodiments disclosed herein can be implemented directly in hardware, in software modules executed by a processor, or in a combination of both. The software modules can be placed in a random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium well-known in the technical field.

[0148] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display control method, applied to a first display device, comprising: Obtaining an image signal from an electronic device, where the image signal at least includes a first image signal and a second image signal, the first image signal corresponds to first configuration information, the second image signal corresponds to second configuration information, and the first configuration information and the second configuration information are used for the electronic device to determine two different display areas; Determining the current display mode of the first display device; When the current display mode is the first display mode, controlling the first image signal to be output and displayed on the first display device corresponding to the first configuration information, and controlling the second image signal to be output and displayed on a second display device connected to the first display device and corresponding to the second configuration information; When the current display mode is the second display mode, controlling the first image signal and the second image signal to be respectively output and displayed in two different display areas of the first display device, and the two different display areas respectively correspond to the first configuration information and the second configuration information; Wherein, the first display device further includes: a switching device, connected to a processor in the first display device, for receiving the second image signal sent by the processor, and when the first display device is in the first display mode, sending the received second image signal to a second interface of the first display device; when the first display device is in the second display mode, outputting the received second image signal to a second port of the processor.

2. The display control method according to claim 1, wherein: Before entering the first display mode, the first display device sends its own first configuration information and the second configuration information of the second display device connected thereto to the electronic device, where the first configuration information includes display parameter information of the first display device, and the second configuration information includes display parameter information of the second display device; Before entering the second display mode, the first display device creates the first configuration information and the second configuration information, and sends the first configuration information and the second configuration information to the electronic device, where the first configuration information includes display parameter information of a first display area of the first display device, and the second configuration information includes display parameter information of a second display area of the first display device.

3. The display control method according to claim 1, where the controlling the first image signal and the second image signal to be respectively output and displayed in two different display areas of the first display device includes: The processor obtains the first image signal and the second image signal through a first interface; The processor sends the second image signal to the switching device; The processor obtains the second image signal output by the switching device to the processor through a second port; The processor controls the first image signal to be output and displayed in the first display area of the first display device and the second image signal to be output and displayed in the second display area of the first display device.

4. The display control method according to claim 1, wherein the image signal further includes a third image signal, and the method further includes: When the current display mode is the third display mode, controlling the first image signal and the second image signal to be respectively output and displayed in two different display areas of the first display device, and controlling the third image signal to be output and displayed on the second display device; The controlling the first image signal and the second image signal to be respectively output and displayed in two different display areas of the first display device, and controlling the third image signal to be output and displayed on the second display device includes: The processor obtains the first image signal, the second image signal, and the third image signal through a first interface; The processor sends the second image signal and the third image signal to a switching device; The processor obtains the second image signal output by the switching device to the processor through a second port, and controls the switching device to send the third image signal to the second display device for output and display; The processor controls the first image signal to be output and displayed in the first display area of the first display device and the second image signal to be output and displayed in the second display area of the first display device.

5. The display control method according to claim 1, further includes: Receiving a switching signal, and based on the switching signal, controlling the first display device to switch from the first display mode to the second display mode, or from the second display mode to the first display mode, where the switching signal is generated by an input device of the first display device or automatically generated by the first display device when a first condition is detected.

6. The display control method according to claim 5, when the first display device is in the second display mode, if it is detected that the second display device is connected, determining that the first condition is satisfied, and controlling the switching from the second display mode to the first display mode; The controlling the switching from the second display mode to the first display mode includes: The processor controls the first image signal to be output and displayed on the first display device; The processor sends the second image signal to a switching device, so that the switching device sends the second image signal to the second display device for output and display; Or, When the first display device is in the first display mode, if it is detected that the connection with the second display device is interrupted, determining that the first condition is satisfied, and controlling the switching from the first display mode to the second display mode.

7. The display control method according to claim 5, wherein the first image signal is parsed into a first image, the second image signal is parsed into a second image, and the input device of the display device generating the switching signal includes: Displaying a fourth image on the first display device; Generate a switching signal based on a selection signal of the input device for the displayed content in the fourth image; Wherein, the first image and the second image are obtained by the first display device parsing the received first image signal and second image signal, the fourth image is locally generated by the first display device, a second method of outputting the fourth image is different from a first method of outputting the first image and the second image, and the display priority of the second method is higher than that of the first method.

8. A display device, comprising: A display device for displaying images; A first interface for connecting to an electronic device and obtaining an image signal from the electronic device, the image signal at least including a first image signal and a second image signal for displaying in different display areas; A processor for, in a first display mode, controlling the first image signal to be output and displayed on the display device, and controlling the second image signal to be output to a second display device connected to the display device for display, and in a second display mode, controlling the first image signal and the second image signal to be respectively output and displayed in two different display areas of the display device; A second interface for connecting to a second display device and outputting the second image signal to the second display device in the first display mode; Further comprising: A switching device connected to the processor for receiving the second image signal sent by the processor, and when the display device is in the first display mode, sending the received second image signal to the second interface, and when the display device is in the second display mode, outputting the received second image signal to a second port of the processor.

9. The display device according to claim 8, further comprising: An input device connected to the processor for collecting input information and generating a switching signal based on the input information, so that after receiving the switching signal, the processor controls the switching from the first display mode to the second display mode, or from the second display mode to the first display mode; Alternatively, the switching signal is generated by the processor when it monitors that the second interface switches from a first connection state to a second connection state, and the first connection state and the second connection state are used to indicate whether the second interface is connected to the second display device.

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