Display method, OPS module, interactive panel and display system

Abstract

The invention relates to the technical field of computers, in particular to a display method, an OPS module, an interactive panel and a display system. The display system comprises an OPS module and an interaction panel, the OPS module and the interaction panel are respectively provided with display interfaces used for transmitting display signals with different resolutions, the OPS module is further provided with logic gate circuits used for outputting different signals under the condition of different resolutions, and correspondingly, the logic gate circuits are connected with the interaction panel. A detection circuit used for distinguishing the resolution supported by the OPS module is further arranged in the interaction panel. Thus, under the condition of different resolutions, the OPS module and the interaction panel complete communication through the corresponding display interfaces, and then display of the display signals with the corresponding resolutions is achieved. Therefore, for the requirement of higher resolution, the display method provided by the embodiment of the invention can also complete display.

Description

Technical Field

[0001] This application relates to the field of computer technology, and in particular, to a display method, an OPS module, an interactive flat panel, and a display system. Background Art

[0002] Currently, the interactive all-in-one machines in the commercial display market include a pluggable computer module (Open Pluggable Specification, OPS) and an interactive flat panel. Generally, a windows system runs on the OPS, which has stronger performance. It can output High Definition Multimedia Interface Cable (HDMI) display data to the interactive flat panel, and then the interactive flat panel displays it.

[0003] With the growth of display requirements, the resolution that the interactive all-in-one machine needs to support is getting higher and higher. However, the existing OPS can only support a maximum resolution of 4K60 frames and cannot meet the requirements of higher resolutions (such as 5K60 frames). In this way, the interactive all-in-one machine cannot support higher resolutions. Summary of the Invention

[0004] The embodiments of this application mainly solve the technical problem that the existing interactive all-in-one machine cannot support higher resolutions.

[0005] In a first aspect, an embodiment of this application provides a display method, which is applied to a display system. The display system includes an OPS module and an interactive flat panel. Among them, the OPS module includes a logic gate circuit, a first display interface, and a second display interface. The interactive flat panel includes a detection circuit, a third display interface, and a fourth display interface. The logic gate circuit is connected to the detection circuit; the first display interface and the third display interface support transmitting display signals of a first resolution (the first resolution is less than a preset resolution), and the second display interface and the fourth display interface support transmitting display signals of a second resolution (the second resolution is greater than the preset resolution). Specifically, the display method provided by the embodiment of this application includes: when the OPS module supports the first resolution, the logic gate circuit outputs a first signal; when the OPS module supports the second resolution, the logic gate circuit outputs a second signal (the level of the first signal is different from the level of the second signal); the detection circuit detects the output signal of the logic gate circuit; if the logic gate circuit outputs the first signal, the detection circuit controls the interactive flat panel to communicate with the first display interface through the third display interface to complete the display according to the display signal of the first resolution; if the logic gate circuit outputs the second signal, the detection circuit controls the interactive flat panel to communicate with the second display interface through the fourth display interface to complete the display according to the display signal of the second resolution.

[0006] It can be seen that in the display method provided by the embodiments of the present application, the OPS and the interactive flat panel are respectively provided with display interfaces for transmitting display signals of different resolutions. The OPS is further provided with a logic gate circuit that outputs different signals in different resolution cases. Correspondingly, the interactive flat panel is further provided with a detection circuit for distinguishing the resolutions supported by the OPS. In this way, in different resolution cases, the OPS and the interactive flat panel complete communication through the corresponding display interfaces, and then realize the display of the display signals of the corresponding resolutions. Therefore, for the demand for higher resolutions, the display method provided by the embodiments of the present application can also complete the display.

[0007] In some embodiments, both the first display interface and the third display interface are high-definition multimedia interface (HDMI) interfaces, and both the second display interface and the fourth display interface are DP interfaces.

[0008] In some embodiments, the logic gate circuit is an open-drain circuit (OD gate). In the case where the OPS module supports the first resolution, the logic gate circuit outputs a first signal; in the case where the OPS module supports the second resolution, the logic gate circuit outputs a second signal. Specifically, in the case where the OPS module supports the first resolution, the output terminal of the OD gate is grounded and a first signal is output to the detection circuit; in the case where the OPS module supports the second resolution, the output terminal of the OD gate is in a floating state and a second signal is output to the detection circuit.

[0009] In some embodiments, the OPS module further includes a first serial interface, and the interactive flat panel further includes a second serial interface. Before controlling the interactive flat panel to communicate through the third display interface and the first display interface to complete the display according to the display signal of the first resolution, or before controlling the interactive flat panel to communicate through the fourth display interface and the second display interface to complete the display according to the display signal of the second resolution, the display method further includes: the interactive flat panel sends handshake information through the second serial interface and the first serial interface to confirm that the identity of the OPS module is a legal identity; the OPS module communicates through the first serial interface and the second serial interface according to the handshake information to confirm that the identity of the interactive flat panel is a legal identity.

[0010] Second aspect, an embodiment of the present application provides a display system, which includes an OPS module and an interactive flat panel. Among them, the OPS module includes a logic gate circuit, a first display interface, and a second display interface, and the interactive flat panel includes a detection circuit, a third display interface, and a fourth display interface. The logic gate circuit is connected to the detection circuit; the first display interface and the third display interface support transmitting display signals of a first resolution (the first resolution is less than a preset resolution), and the second display interface and the fourth display interface support transmitting display signals of a second resolution (the second resolution is greater than the preset resolution). Specifically, the logic gate circuit is configured to output a first signal when the OPS module only supports the first resolution; the logic gate circuit is further configured to output a second signal when the OPS module supports the second resolution, where the level of the first signal is different from the level of the second signal; the detection circuit is configured to detect the output signal of the logic gate circuit; if the logic gate circuit outputs the first signal, it controls the interactive flat panel to communicate with the first display interface through the third display interface to complete the display according to the display signal of the first resolution; if the logic gate circuit outputs the second signal, it controls the interactive flat panel to communicate with the second display interface through the fourth display interface to complete the display according to the display signal of the second resolution.

[0011] In the display system provided by the embodiment of the present application, the OPS module and the interactive flat panel are respectively provided with display interfaces for transmitting display signals of different resolutions. The OPS module is further provided with a logic gate circuit that outputs different signals in different resolution cases. Correspondingly, the interactive flat panel is further provided with a detection circuit for distinguishing the resolution supported by the OPS module. In this way, in different resolution cases, the OPS module and the interactive flat panel complete communication through the corresponding display interfaces, and then realize the display of the display signals of the corresponding resolutions. Therefore, for the demand for higher resolutions, the display system provided by the embodiment of the present application can also complete the display.

[0012] In some embodiments, both the first display interface and the third display interface are high-definition multimedia interface lines HDMI interfaces, and both the second display interface and the fourth display interface are DP interfaces.

[0013] In some embodiments, the logic gate circuit is an open-drain circuit OD gate; when the OPS module only supports the first resolution, the output terminal of the OD gate is grounded and outputs a first signal to the detection circuit; when the OPS module supports the second resolution, the output terminal of the OD gate is in a floating state and outputs a second signal to the detection circuit.

[0014] In some embodiments, the OPS module further includes a first serial interface, and the interactive flat panel further includes a second serial interface; the interactive flat panel is configured to send handshake information through the second serial interface and the first serial interface to confirm that the identity of the OPS module is a legal identity; the OPS module is configured to communicate through the first serial interface and the second serial interface according to the handshake information to confirm that the identity of the interactive flat panel is a legal identity.

[0015] In a third aspect, an embodiment of the present application provides an OPS module, which is applied to a display system. The display system further includes an interactive flat panel. The OPS module includes a logic gate circuit, a first display interface, and a second display interface; the first display interface supports transmitting a display signal with a first resolution (the first resolution is less than a preset resolution), and the second display interface supports transmitting a display signal with a second resolution (the second resolution is greater than the preset resolution); the output end of the logic gate circuit is configured to be connected to the interactive flat panel. When the OPS module only supports the first resolution, the logic gate circuit outputs a first signal to the interactive flat panel; when the OPS module supports the second resolution, the logic gate circuit outputs a second signal to the interactive flat panel (the level of the first signal is different from the level of the second signal).

[0016] In the OPS module provided by the embodiment of the present application, a display interface for transmitting display signals with different resolutions is provided, and a logic gate circuit for outputting different signals in different resolution cases is also provided in the OPS. Based on this, if the connected interactive flat panel can detect the different resolutions supported by the OPS module according to the output signal of the OPS, the interactive flat panel can complete communication with the OPS module through the corresponding display interface in different resolution requirement cases. Therefore, for higher resolution requirements, the OPS module provided by the embodiment of the present application can also cooperate with the interactive flat panel to complete the display.

[0017] In a fourth aspect, an embodiment of the present application provides an interactive flat panel, which is applied to a display system. The display system further includes an OPS module. The interactive flat panel includes a detection circuit, a third display interface, and a fourth display interface; the third display interface supports transmitting a display signal with a first resolution (the first resolution is less than a preset resolution), and the fourth display interface supports transmitting a display signal with a second resolution (the second resolution is greater than the preset resolution); the detection circuit is configured to be connected to the OPS module and detect the output signal of the OPS module. If the OPS module outputs a first signal, the detection circuit controls the interactive flat panel to communicate with the OPS module through the third display interface to complete the display according to the display signal with the first resolution; if the OPS module outputs a second signal (the level of the first signal is different from the level of the second signal), the detection circuit controls the interactive flat panel to communicate with the OPS module through the fourth display interface to complete the display according to the display signal with the second resolution.

[0018] In the interactive flat panel provided by the embodiment of the present application, a display interface for transmitting display signals of different resolutions is provided, and a detection circuit for distinguishing the resolutions supported by the OPS is also provided in the interactive flat panel. Based on this, if the OPS module supports different resolutions and can output different signals in different resolution cases, the interactive flat panel can detect the output signal of the OPS module through the detection circuit, and then complete communication with the OPS module through the corresponding display interface in different resolution requirement cases. Therefore, for the requirement of higher resolution, the interactive flat panel provided by the embodiment of the present application can also complete the display.

[0019] Different from the related art, the present application provides a display method, an OPS module, an interactive flat panel and a display system. The method is applied to the display system, which includes an OPS module and an interactive flat panel. Among them, the OPS module includes a logic gate circuit, a first display interface and a second display interface. The interactive flat panel includes a detection circuit, a third display interface and a fourth display interface. The logic gate circuit is connected to the detection circuit; the first display interface and the third display interface support transmitting display signals of a first resolution, and the second display interface and the fourth display interface support transmitting display signals of a second resolution, and the second resolution is greater than the first resolution. Specifically, the display method provided by the embodiment of the present application includes: when the OPS module supports the first resolution, the logic gate circuit outputs a first signal; when the OPS module supports the second resolution, the logic gate circuit outputs a second signal (the level of the first signal is different from the level of the second signal); the detection circuit detects the output signal of the logic gate circuit; if the logic gate circuit outputs the first signal, the detection circuit controls the interactive flat panel to communicate with the first display interface through the third display interface to complete the display according to the display signal of the first resolution; if the logic gate circuit outputs the second signal, the detection circuit controls the interactive flat panel to communicate with the second display interface through the fourth display interface to complete the display according to the display signal of the second resolution. Based on this, in the display method provided by the embodiment of the present application, the OPS module and the interactive flat panel are respectively provided with display interfaces for transmitting display signals of different resolutions. The OPS module is also provided with a logic gate circuit that outputs different signals in different resolution cases. Correspondingly, the interactive flat panel is also provided with a detection circuit for distinguishing the resolutions supported by the OPS. In this way, in different resolution cases, the OPS and the interactive flat panel complete communication through the corresponding display interfaces, and then realize the display of the display signals of the corresponding resolutions. Therefore, for the requirement of higher resolution, the display method provided by the embodiment of the present application can also complete the display. Description of the Drawings

[0020] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the drawings in the figures do not constitute a scale limitation.

[0021] Figure 1 is a schematic structural diagram of an existing commercial display all-in-one machine;

[0022] Figure 2 is a block diagram of the structure of a display system provided by an embodiment of the present application;

[0023] Figure 3 is a schematic structural diagram of a display system provided by an embodiment of the present application;

[0024] Figure 4 is a schematic logic diagram of the handshake process of an interactive flat panel provided by an embodiment of the present application;

[0025] Figure 5 is a schematic logic diagram of the display screen of an interactive flat panel provided by an embodiment of the present application. Detailed implementation manners

[0026] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. It should be noted that if there is no conflict, the various features in the embodiments of the present application can be combined with each other and are all within the protection scope of the present application. In addition, although the functional modules are divided in the device schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different module division from that in the device schematic diagram or a different order from that in the flowchart.

[0027] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific implementation manners and are not used to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0028] The interactive all-in-one machine in the commercial display market includes a pluggable computer module (Open Pluggable Specification, OPS) and an interactive flat panel, which is also called a large screen in some cases. Generally, a Windows system runs on the OPS, which has stronger performance. It can output High Definition Multimedia Interface Cable (HDMI) display data to the interactive flat panel, and then the interactive flat panel displays it.

[0029] Please refer to Figure 1 , such as Figure 1 shown. In addition to the common power pins (POWER shown in the figure) and ground pins (GND shown in the figure), the OPS module completes the transmission of display signals with the interactive flat panel through its System-on-a-Chip (SOC) and HDMI interface. The interactive flat panel also communicates with the OPS module through its SOC and HDMI interface. The current controller of the OPS module only supports up to HDMI 2.0, and the corresponding highest resolution is 4K 60fps. Due to hardware limitations, the existing OPS cannot meet the requirements of higher resolutions (such as 5K 60fps). In this way, the interactive all-in-one machine cannot support higher resolutions.

[0030] In view of the above situation, the embodiments of the present application provide a display system. Without affecting the original communication logic, this display system can adapt to a wider range of resolutions and support higher resolutions.

[0031] The embodiments of the present application provide a display method, which is applied to this display system. Specifically, as Figure 2 shown, this display system includes an OPS module and an interactive flat panel.

[0032] Among them, the OPS module includes a logic gate circuit, a first display interface, and a second display interface. The interactive flat panel includes a detection circuit, a third display interface, and a fourth display interface. The logic gate circuit is connected to the detection circuit. The first display interface and the third display interface support the transmission of display signals with a first resolution (the first resolution is less than the preset resolution). The second display interface and the fourth display interface support the transmission of display signals with a second resolution (the second resolution is greater than the preset resolution).

[0033] Specifically, the display method provided by the embodiments of the present application includes: when the OPS module supports the first resolution, the logic gate circuit outputs a first signal; when the OPS module supports the second resolution, the logic gate circuit outputs a second signal, where the level of the first signal is different from the level of the second signal. Correspondingly, the detection circuit in the interactive flat panel detects the output signal of the logic gate circuit. Based on this, if the logic gate circuit outputs the first signal, the detection circuit controls the interactive flat panel to communicate with the first display interface through the third display interface to complete the display according to the display signal of the first resolution; if the logic gate circuit outputs the second signal, the detection circuit controls the interactive flat panel to communicate with the second display interface through the fourth display interface to complete the display according to the display signal of the second resolution.

[0034] In some embodiments, the first display interface and the third display interface may be High-Definition Multimedia Interface (HDMI) interfaces, hereinafter simply referred to as HDMI interfaces; the second display interface and the fourth display interface may be DP (DisplayPort) interfaces. Please refer to Figure 3 , Figure 3 which is a structural example of a display system provided in the embodiments of the present application. As Figure 3 shown, the first display interface and the third display interface are shown as HDMI interfaces, and the second display interface and the fourth display interface are shown as DP interfaces. Among them, the DP interface supports DP transmission. Compared with the highest resolution of 4K60 frames supported by the HDMI interface, the DP interface can meet the requirements of higher resolutions (such as 5K60 frames, or even 8K60 frames). In addition, in this display system, both the OPS module and the interactive flat panel include a power pin POWER and a ground pin GND for connecting to the power supply terminal. Among them, other HDMI terminals are also provided in the interactive flat panel and are connected to the SOC of the interactive flat panel through a switch SW (switch).

[0035] In some embodiments, the logic gate circuit in the OPS module may be an open-drain circuit OD gate (Open Drain Gate), hereinafter simply referred to as an OD gate. As Figure 3As shown in the figure. The output terminal of the OD gate can be pulled low, but cannot be pulled high. It can only not output an electrical signal in the high-impedance state. Based on its characteristics, this OD gate can be modified from a GND pin (ground pin) of the OPS module in the existing architecture. The SOC of the OPS module can configure this OD gate through GPIO (General-purpose input / output). This OD gate is configured as follows: when the OPS module supports DP transmission (i.e., when a DP interface is set), the output pin of the OD gate is in a floating state and outputs a second signal to the detection circuit; when the OPS module only supports HDMI transmission (i.e., only an HDMI interface is set), the output terminal of the OD gate is grounded (GND) and outputs a first signal to the detection circuit.

[0036] Correspondingly, when the detection circuit in the interactive flat panel detects the second signal, it can control the interactive flat panel to communicate with the first display interface through the third display interface. For example, taking Figure 3 the display system as an example, when the display system is powered on, the OPS module supports transmitting the display signal of the second resolution, that is, the DP display signal (because there is a DP interface). Therefore, the output terminal of the OD gate of the OPS module is in a floating state and outputs a second signal to the detection circuit. After the detection circuit detects the second signal, it combines with the SOC to control the communication between the DP interface of the interactive flat panel and the DP interface of the OPS module. The OPS module transmits the display signal of the second resolution to the interactive flat panel, and the interactive flat panel displays the picture according to the display signal.

[0037] Taking Figure 3 as an example, after the detection circuit detects the second signal, the SOC of the interactive flat panel can control its DP interface to pull up DP_HPD, confirm the legal identity of the OPS module according to the handshake process of DP transmission, and establish a DP transmission connection with the OPS module after the handshake is successful, waiting for the OPS module to output the DP display signal through the DP display interface, so that the interactive flat panel can display the video picture according to the DP display signal. During the display process of the picture, please combine Figure 3 In addition, the interactive flat panel can also convert the communication protocol transmitted by the OPS module into a communication protocol that the interactive flat panel can support through a signal conversion chip. In addition, signal attenuation is inevitable during signal transmission, and the signal conversion chip can also enhance the signal.

[0038] In some embodiments, as Figure 3 shown, the OPS module in this display system further includes a first serial interface, corresponding to Figure 3 the UART (Universal Asynchronous Receiver / Transmitter) of the OPS module inFigure 3 The UART of the interactive flat panel. Before the DP interface of the OPS module is connected to the DP interface of the interactive flat panel, the OPS module and the interactive flat panel can communicate through this UART. For example, in order to prevent an illegal OPS module from damaging the system security of the interactive flat panel by connecting to it, an identity authentication function can be developed in combination with the allowed OPS modules in advance. When an OPS module is connected to the interactive flat panel, the identity information of the current OPS module can be verified through the UART.

[0039] Specifically, please combine Figure 4 , Figure 4 is a logical schematic diagram of a handshake process of an interactive flat panel provided by an embodiment of the present application. When the system is powered on, the interactive flat panel can send a preset handshake message to the OPS module through the UART and wait for the reply of the OPS module to confirm whether the identity of the OPS module is a legal identity. Correspondingly, after receiving the handshake message, the OPS module can reply as required and communicate with the UART of the interactive flat panel through its UART to confirm that the identity of the interactive flat panel is a legal identity. For example, if a legitimate interactive flat panel receives a correct reply after sending a handshake message, the handshake is successful, and it is considered that the currently connected OPS module is safe and reliable and can communicate normally, including opening the DP transmission channel to the OPS module. If the handshake fails, it is considered that the currently connected OPS module is a device that does not meet the security requirements, such as Figure 4 the interactive part shown by the dotted line in Figure 4 It can be understood that after the system is powered on and the interactive flat panel sends a handshake message, the handshake may succeed or fail. Figure 4 There is no time sequence between the interactive part with a successful handshake and the interactive part with a failed handshake shown by the dotted line in

[0040] In the display method provided in the embodiments of the present application, the OPS module and the interactive flat panel are respectively provided with display interfaces for transmitting display signals of different resolutions. The OPS module is further provided with a logic gate circuit that outputs different signals under different resolutions. Correspondingly, the interactive flat panel is further provided with a detection circuit for distinguishing the resolutions supported by the OPS. In this way, under different resolutions, the OPS and the interactive flat panel complete communication through the corresponding display interfaces, and then implement the display of the display signals of the corresponding resolutions. Therefore, for the demand for higher resolutions, the display method provided in the embodiments of the present application can also complete the display. When the user demands a higher resolution, the display system can establish a DP transmission channel between the DP interface of the OPS module and the DP interface of the interactive flat panel to display a video picture of a higher resolution, improving the user experience. In addition, in combination with the serial communication of the UART, the interactive flat panel can set a program / code for verifying the identity of the OPS module, and detect the security of the OPS module by the dual logic of hardware and software to prevent an illegal module or an insecure OPS module from damaging the security of the interactive flat panel.

[0041] The embodiments of the present application provide a display system, which includes an OPS module and an interactive flat panel. Among them, the OPS module includes a logic gate circuit, a first display interface, and a second display interface, and the interactive flat panel includes a detection circuit, a third display interface, and a fourth display interface. The logic gate circuit is connected to the detection circuit; the first display interface and the third display interface support transmitting display signals of a first resolution (the first resolution is less than a preset resolution), and the second display interface and the fourth display interface support transmitting display signals of a second resolution (the second resolution is greater than the preset resolution). Specifically, the logic gate circuit is used to output a first signal when the OPS module only supports the first resolution; the logic gate circuit is further used to output a second signal when the OPS module supports the second resolution, where the level of the first signal is different from the level of the second signal; the detection circuit is used to detect the output signal of the logic gate circuit; if the logic gate circuit outputs the first signal, it controls the interactive flat panel to communicate with the first display interface through the third display interface to complete the display according to the display signal of the first resolution; if the logic gate circuit outputs the second signal, it controls the interactive flat panel to communicate with the second display interface through the fourth display interface to complete the display according to the display signal of the second resolution.

[0042] In the display system provided by the embodiments of the present application, the OPS module and the interactive flat panel are respectively provided with display interfaces for transmitting display signals of different resolutions. The OPS module is also provided with a logic gate circuit that outputs different signals under different resolutions. Correspondingly, the interactive flat panel is also provided with a detection circuit for distinguishing the resolutions supported by the OPS module. In this way, under different resolutions, the OPS module and the interactive flat panel complete communication through the corresponding display interfaces, and then realize the display of the display signals of the corresponding resolutions. Therefore, for the demand of higher resolutions, the display system provided by the embodiments of the present application can also complete the display.

[0043] In some embodiments, the first display interface and the third display interface may both be high-definition multimedia interface lines HDMI interfaces, and the second display interface and the fourth display interface may both be DP interfaces. The logic gate circuit is an open-drain circuit OD gate; when the OPS module only supports the first resolution, the output terminal of the OD gate is grounded and a first signal is output to the detection circuit; when the OPS module supports the second resolution, the output terminal of the OD gate is in a floating state and a second signal is output to the detection circuit. The OPS module further includes a first serial interface, and the interactive flat panel further includes a second serial interface; the interactive flat panel is configured to send handshake information through the second serial interface and the first serial interface to confirm that the identity of the OPS module is a legal identity; the OPS module is configured to communicate through the first serial interface and the second serial interface according to the handshake information to confirm that the identity of the interactive flat panel is a legal identity.

[0044] It can be understood that the above display system can execute the display method provided by the embodiments of the present invention, and has the corresponding functional modules and beneficial effects for executing the display method. For technical details not described in detail in this embodiment, reference can be made to the display method provided by the embodiments of the present invention.

[0045] The embodiments of the present application provide an OPS module, which can be connected to an interactive flat panel to form a display system. The OPS module can refer to Figure 3 the OPS module shown in Figure 3As shown in the figure, the OPS module provided in the embodiment of the present application includes a logic gate circuit, a first display interface, and a second display interface; the first display interface supports transmitting a display signal with a first resolution (the first resolution is less than a preset resolution), and the second display interface supports transmitting a display signal with a second resolution (the second resolution is greater than the preset resolution); the output end of the logic gate circuit is used to connect to the interactive flat panel. When the OPS module only supports the first resolution, the logic gate circuit outputs a first signal to the interactive flat panel; when the OPS module supports the second resolution, the logic gate circuit outputs a second signal to the interactive flat panel (the level of the first signal is different from the level of the second signal). It can be understood that the OPS module provided in the embodiment of the present application is the same as the OPS module in the above-mentioned display system embodiment, and the two have the same technical features. Therefore, the OPS module provided in the embodiment of the present application also has the beneficial effects of the OPS module in the above-mentioned display system embodiment, which will not be elaborated here.

[0046] Among them, the logic gate in the OPS module can be an OD gate, which can be modified from a ground pin in the existing OPS module. Cooperating with the detection circuit of the interactive flat panel, both the OPS module and the interactive flat panel can support the old version of the interactive flat panel or the old version of the OPS module, with good compatibility. Based on this, the OPS module provided in the embodiment of the present application is not only adapted to the interactive flat panel in the display system provided in the embodiment of the present application, such as Figure 3 the interactive flat panel shown in Figure 1 but also can be backward compatible with the existing interactive flat panel, such as

[0047] Specifically, taking the OPS module shown in Figure 3 as an example, when the system is powered on, the output pin of the OD gate in the OPS module is in a floating state, and a second signal is output to the interactive flat panel; if the currently connected interactive flat panel supports DP transmission (such as Figure 3 the interactive flat panel shown in Figure 1 ), after detecting the second signal, the interactive flat panel will initiate a handshake process for DP transmission to establish a connection, and the OPS module correspondingly provides a DP display signal through the DP interface, and then displays a high-resolution video image supported by the DP interface through the interactive flat panel. If the currently connected interactive flat panel does not support DP transmission (such as

[0048] In the OPS module provided in the embodiment of the present application, a display interface for transmitting display signals of different resolutions is provided. Moreover, in the OPS, a logic gate circuit for outputting different signals in different resolutions is also provided. Based on this, if the connected interactive flat panel can detect different resolutions supported by the OPS module according to the output signal of the OPS, the interactive flat panel can complete communication with the OPS module through the corresponding display interface in different resolution requirements. Therefore, for higher resolution requirements, the OPS module provided in the embodiment of the present application can also cooperate with a suitable interactive flat panel to complete the display.

[0049] The embodiment of the present application provides an interactive flat panel, which can be connected to an OPS module to form a display system. The interactive flat panel can refer to Figure 3 the interactive flat panel shown in Figure 3 As shown, the interactive flat panel provided in the embodiment of the present application includes a detection circuit, a third display interface, and a fourth display interface; the third display interface supports transmitting display signals of a first resolution (the first resolution is less than a preset resolution), and the fourth display interface supports transmitting display signals of a second resolution (the second resolution is greater than the preset resolution); the detection circuit is used to connect to the OPS module and detect the output signal of the OPS module. If the OPS module outputs a first signal, the detection circuit controls the interactive flat panel to communicate with the OPS module through the third display interface to complete the display according to the display signal of the first resolution; if the OPS module outputs a second signal (the level of the first signal is different from the level of the second signal), the detection circuit controls the interactive flat panel to communicate with the OPS module through the fourth display interface to complete the display according to the display signal of the second resolution. It can be understood that the interactive flat panel provided in the embodiment of the present application is the same as the interactive flat panel in the above display system embodiment, and the two have the same technical features. Therefore, the interactive flat panel provided in the embodiment of the present application also has the beneficial effects of the interactive flat panel in the above display system embodiment, which will not be elaborated here.

[0050] In addition, the interactive flat panel provided in the embodiment of the present application not only adapts to the OPS module in the display system provided in the embodiment of the present application, such as Figure 3 the OPS module shown in Figure 1 but also is downward compatible with existing OPS modules, such as

[0051] Specifically, taking the interactive flat panel shown in Figure 3 as an example, please refer to Figure 5 , Figure 5It is a logical schematic diagram of the display screen of an interactive flat panel provided by an embodiment of the present application. When the system is powered on, if the detection circuit of the interactive flat panel detects a second signal, it indicates that the currently connected OPS module is the OPS module in the display system provided by the embodiment of the present application. The output pin of its OD gate is in a floating state and can output the second signal to the detection circuit. At this time, the interactive flat panel can establish a DP transmission with the OPS module and display a video screen with a higher resolution (such as 5k60 supported by DP) in combination with the OPS module. If the detection unit of the interactive flat panel does not detect the second signal, it indicates that the currently connected OPS module is an existing version of the OPS module, such as Figure 1 the OPS module shown in it. The connection position of the detection unit is a GND grounding pin in the OPS module. At this time, the interactive flat panel will only establish an HDMI transmission with the OPS module and display a video screen with a lower resolution (such as 4K60 frames supported by HDMI2.0) in combination with the OPS module.

[0052] For example, when the system is powered on, if the detection unit in the interactive flat panel does not detect the second signal, a low level is provided to the SOC of the interactive flat panel. The SOC determines that the currently connected OPS module is an existing OPS module, as Figure 1 shown. The OPS module includes an HDMI display interface, which supports HDMI transmission but does not support DP transmission. At this time, as Figure 5 shown by the dotted line in it for the interaction part, the SOC of the interactive flat panel can control its HDMI display interface to pull up HDMI_HPD, identify according to the HDMI handshake process, establish an HDMI transmission connection with the OPS module, and wait for the OPS module to output an HDMI display signal through the HDMI display interface so that the interactive flat panel can display a video screen according to the HDMI display signal.

[0053] In the interactive flat panel provided by the embodiment of the present application, a display interface for transmitting display signals of different resolutions is provided, and a detection circuit for distinguishing the resolutions supported by the OPS is also provided in the interactive flat panel. Based on this, if the OPS module supports different resolutions and can output different signals in different resolution cases, then the interactive flat panel can detect the output signal of the OPS module through the detection circuit, and then complete communication with the OPS module through the corresponding display interface in different resolution requirement cases. Therefore, for higher resolution requirements, the interactive flat panel provided by the embodiment of the present application can also complete the display in combination with a suitable OPS module.

[0054] Through the description of the above embodiments, those of ordinary skill in the art can clearly understand that each embodiment can be implemented by means of software plus a general hardware platform, and of course, it can also be implemented by hardware. Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above methods. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM), etc.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present application as described above. For the sake of brevity, they are not provided in detail; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display method, applied to a display system, the display system including an OPS module and an interactive flat panel, Characterized in that, The OPS module includes a logic gate circuit, a first display interface and a second display interface, and the interactive flat panel includes a detection circuit, a third display interface and a fourth display interface; the logic gate circuit is connected to the detection circuit; the first display interface and the third display interface support the transmission of display signals with a first resolution, and the second display interface and the fourth display interface support the transmission of display signals with a second resolution; The first resolution is less than a preset resolution, and the second resolution is greater than the preset resolution; The display method includes: When the OPS module supports the first resolution, the logic gate circuit outputs a first signal; When the OPS module supports the second resolution, the logic gate circuit outputs a second signal; the level of the first signal is different from the level of the second signal; The detection circuit detects the output signal of the logic gate circuit; if the logic gate circuit outputs the first signal, control the interactive flat panel to communicate with the first display interface through the third display interface to complete the display according to the display signal with the first resolution; if the logic gate circuit outputs the second signal, control the interactive flat panel to communicate with the second display interface through the fourth display interface to complete the display according to the display signal with the second resolution.

2. The display method according to claim 1, Characterized in that, Both the first display interface and the third display interface are high-definition multimedia interface lines HDMI interfaces, and both the second display interface and the fourth display interface are DP interfaces.

3. The display method according to claim 1 or 2, Characterized in that, The logic gate circuit is an open-drain circuit OD gate; When the OPS module supports the first resolution, the logic gate circuit outputs a first signal; When the OPS module supports the second resolution, the logic gate circuit outputs a second signal, including: When the OPS module supports the first resolution, the output terminal of the OD gate is grounded and outputs the first signal to the detection circuit; When the OPS module supports the second resolution, the output terminal of the OD gate is in a floating state and outputs the second signal to the detection circuit.

4. The display method according to claim 1 or 2, Characterized in that, The OPS module further includes a first serial interface, and the interactive flat panel further includes a second serial interface; Before controlling the interactive flat panel to communicate with the first display interface through the third display interface to complete the display according to the display signal with the first resolution, or before controlling the interactive flat panel to communicate with the second display interface through the fourth display interface to complete the display according to the display signal with the second resolution, the display method further includes: The interactive flat panel sends handshake information through the second serial interface to the first serial interface to confirm that the identity of the OPS module is a legal identity; The OPS module communicates with the second serial interface through the first serial interface according to the handshake information to confirm that the identity of the interactive flat panel is a legal identity.

5. A display system, comprising an OPS module and an interactive flat panel, Characterized in that, The OPS module includes a logic gate circuit, a first display interface and a second display interface, and the interactive flat panel includes a detection circuit, a third display interface and a fourth display interface; The logic gate circuit is connected to the detection circuit; the first display interface and the third display interface support transmitting display signals of a first resolution, and the second display interface and the fourth display interface support transmitting display signals of a second resolution, wherein the first resolution is less than a preset resolution, and the second resolution is greater than the preset resolution; The logic gate circuit is used to output a first signal when the OPS module only supports the first resolution; the logic gate circuit is also used to output a second signal when the OPS module supports the second resolution, wherein the level of the first signal is different from the level of the second signal; The detection circuit is used to detect the output signal of the logic gate circuit; if the logic gate circuit outputs the first signal, it controls the interactive flat panel to communicate with the first display interface through the third display interface to complete the display according to the display signal of the first resolution; if the logic gate circuit outputs the second signal, it controls the interactive flat panel to communicate with the second display interface through the fourth display interface to complete the display according to the display signal of the second resolution.

6. The display system according to claim 5, Characterized in that, Both the first display interface and the third display interface are high-definition multimedia interface lines HDMI interfaces, and both the second display interface and the fourth display interface are DP interfaces.

7. The display system according to claim 5, Characterized in that, The logic gate circuit is an open-drain circuit OD gate; In the case where the OPS module only supports the first resolution, the output terminal of the OD gate is grounded and outputs the first signal to the detection circuit; In the case where the OPS module supports the second resolution, the output terminal of the OD gate is in a floating state and outputs the second signal to the detection circuit.

8. The display system according to claim 5, Characterized in that, The OPS module further includes a first serial interface, and the interactive flat panel further includes a second serial interface; The interactive flat panel is used to send handshake information through the second serial interface and the first serial interface to confirm that the identity of the OPS module is a legal identity; The OPS module is used to communicate with the second serial interface through the first serial interface according to the handshake information to confirm that the identity of the interactive flat panel is a legal identity.

9. An OPS module, applied to a display system, the display system further including an interactive flat panel, Characterized in that, The OPS module includes a logic gate circuit, a first display interface, and a second display interface; the first display interface supports transmitting a display signal with a first resolution, and the second display interface supports transmitting a display signal with a second resolution; the first resolution is less than a preset resolution, and the second resolution is greater than the preset resolution; The output terminal of the logic gate circuit is used to connect to the interactive flat panel; When the OPS module only supports the first resolution, the logic gate circuit is used to output a first signal to the interactive flat panel; When the OPS module supports the second resolution, the logic gate circuit is used to output a second signal to the interactive flat panel; the level of the first signal is different from the level of the second signal.

10. An interactive flat panel is applied to a display system, and the display system further includes an OPS module, Characterized in that, The interactive flat panel includes a detection circuit, a third display interface, and a fourth display interface; the third display interface supports transmitting a display signal with a first resolution, and the fourth display interface supports transmitting a display signal with a second resolution; the first resolution is less than a preset resolution, and the second resolution is greater than the preset resolution; The detection circuit is used to connect to the OPS module and detect the output signal of the OPS module. If the OPS module outputs a first signal, it controls the interactive flat panel to communicate with the OPS module through the third display interface to complete the display according to the display signal with the first resolution; if the OPS module outputs a second signal, it controls the interactive flat panel to communicate with the OPS module through the fourth display interface to complete the display according to the display signal with the second resolution; the level of the first signal is different from the level of the second signal.

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