Display device and playing and shutdown method thereof

Abstract

The embodiment of the invention discloses display equipment and a playing and shutdown method thereof. The display device comprises a display panel, a main control module, a power supply module, an interface module and a controller, the interface module comprises at least one video input interface, and the video input interface comprises at least one power-on detection pin; the controller is used for sending an enable signal to the power supply module when detecting that the power-on detection pin is powered on; the power supply module is used for supplying power to the main control module and the display panel after receiving an enable signal of the microprocessor; the main control module is used for determining an information source channel corresponding to the power-on detection pin based on power supply starting of the power supply module, receiving data input by the video input interface through the information source channel, and controlling the display panel to display the data input by the video input interface; and the display panel is used for starting and displaying data input by the video input interface according to the control of the main control module.

Description

Technical Field

[0001] This application relates to the field of display technologies, and more particularly, to a display device and its playback and shutdown methods. Background Art

[0002] Since the screen of a laptop computer is small, in a meeting scenario, generally the screen of the laptop computer is projected onto a large-sized display by means of screen mirroring. For energy conservation, currently the displays in meeting rooms are generally in the standby mode. When performing wired screen mirroring, the user needs to turn on the display, connect the powered-on laptop computer to the display through cables such as High-Definition Multimedia Interface (HDMI) or Display Port (DP), and then check the currently connected source channel and set the current source channel to the playback channel, so as to achieve wired screen mirroring. Summary of the Invention

[0003] Embodiments of this application provide a display device and its playback and standby methods, and the display device and its playback and standby methods can achieve the function of playing as soon as plugged in or turning off as soon as unplugged.

[0004] Embodiments of this application provide a display device, including a display panel, a main control module, a power module, an interface module, and a controller. Among them, the interface module includes at least one video input interface, and the video input interface includes at least one power-on detection pin; the controller is configured to send an enable signal to the power module when detecting that the power-on detection pin is powered on; the power module is configured to supply power to the main control module and the display panel after receiving the enable signal from the controller; the main control module is configured to start based on the power supply of the power module, determine the source channel corresponding to the power-on detection pin, receive the data input through the source channel by the video input interface, and control the display panel to display the data input by the video input interface; the display panel is configured to start and display the data input by the video input interface according to the control of the main control module.

[0005] In an exemplary embodiment, the controller includes at least one level detection pin, the level detection pin is electrically connected to the power-on detection pin, and the controller detects whether the power-on detection pin is powered on through the level detection pin.

[0006] In an exemplary embodiment, the controller is further configured to send source channel determination information to the main control module when the main control module is started; The main control module is further configured to determine the source channel corresponding to the power-on detection pin according to the source channel determination information.

[0007] In an exemplary embodiment, the main control module is further configured to, after its own startup, sequentially detect the signals of all the power-on detection pins of the video input interface; and determine the source channel corresponding to the powered-on power-on detection pin as the source channel corresponding to the power-on detection pin.

[0008] In an exemplary embodiment, it further includes a switch module; The switch module is configured to turn on or off the plug-and-play function according to user settings; The controller is configured to send an enable signal to the power supply module when the switch module turns on the plug-and-play function and when it detects that the power-on detection pin is powered on; and not send an enable signal to the power supply module when the switch module turns off the plug-and-play function and when it detects that the power-on detection pin is powered on.

[0009] In an exemplary embodiment, the video input interface is a high-definition multimedia interface or a display interface; The power-on detection pin is a 5V power supply pin.

[0010] In an exemplary embodiment, the level detection pin is a general-purpose input / output pin.

[0011] This application provides a display device, including a display panel, a main control module, a power supply module, an interface module, and a controller, where: The interface module includes at least one video input interface, and the video input interface includes at least one power-on detection pin; The controller is configured to send a power-off signal to the power supply module when it detects that the power-on detection pin is powered off; The power supply module is configured to stop supplying power to the main control module and the display panel based on the power-off signal; The main control module is configured to enter a standby mode after being powered off; The display panel is configured to enter a shutdown mode after being powered off.

[0012] In an exemplary embodiment, the controller includes at least one level detection pin, the level detection pin is electrically connected to the power-on detection pin, and the controller detects whether the power-on detection pin is powered on through the level detection pin.

[0013] In an exemplary embodiment, it further includes a switch module; The switch module is used to turn on or off a plug-and-play function according to user settings; The controller is configured to send a standby signal to the main control module when the switch module turns on the plug-and-play function and detects a power-down on the power-on detection pin; and not send a standby signal to the main control module when the switch module turns off the plug-and-play function and detects a power-down on the power-on detection pin.

[0014] The present application provides a playback method for a display device, where the display device includes a display panel, a main control module, a power module, an interface module, and a controller. The interface module includes at least one video input interface, and the video input interface includes at least one power-on detection pin; the controller includes at least one level detection pin, and the level detection pin is electrically connected to the power-on detection pin; the method includes: When the controller detects a power-on on the power-on detection pin, it sends an enable signal to the power module; After receiving the enable signal from the controller, the power module supplies power to the main control module and the display panel; Based on the power supply startup of the power module, the main control module determines the signal source channel corresponding to the power-on detection pin, receives the data input through the signal source channel by the video input interface, and controls the display panel to display the data input by the video input interface; The display panel starts and displays the data input by the video input interface according to the control of the main control module.

[0015] In an exemplary embodiment, when the main control module starts up, the controller sends signal source channel determination information to the main control module; The signal source channel determination information includes the serial number of the level detection pin; Determining the signal source channel corresponding to the power-on detection pin includes: Taking the channel determined according to the serial number of the level detection pin and the corresponding relationship between the serial number and the channel as the channel where the current signal source is located.

[0016] In an exemplary embodiment, determining the signal source channel corresponding to the power-on detection pin includes: After the main control module starts up itself, it sequentially detects the signals of all the power-on detection pins of the video input interface; and determines the signal source channel corresponding to the power-on detection pin as the signal source channel corresponding to the power-on detection pin.

[0017] The present application provides a method for shutting down a display device. The display device includes a display panel, a main control module, a power module, an interface module, and a controller. The interface module includes at least one video input interface, and the video input interface includes at least one power-on detection pin; the controller includes at least one level detection pin, and the level detection pin is electrically connected to the power-on detection pin; the method includes: When the controller detects that the power-on detection pin is powered off, it sends a power supply stop signal to the power module; The power module stops supplying power to the main control module and the display panel based on the power supply stop signal; After the main control module is powered off, it enters the standby mode; After the display panel is powered off, it enters the shutdown mode.

[0018] The display device according to the embodiment of the present application includes a display panel, a main control module, a power module, an interface module, and a controller. Among them, the interface module includes at least one video input interface, and the video input interface includes at least one power-on detection pin; the controller is configured to send an enable signal to the power module when detecting that the power-on detection pin is powered on; the power module is configured to supply power to the main control module and the display panel after receiving the enable signal from the controller; the main control module is configured to determine the signal source channel corresponding to the power-on detection pin based on the power supply startup of the power module, receive the data input through the signal source channel by the video input interface, and control the display panel to display the data input by the video input interface; the display panel is configured to start and display the data input by the video input interface according to the control of the main control module, so that the display device can realize the function of plug-and-play.

[0019] Other features and advantages of the present application will be described in the subsequent specification, and some of them will become obvious from the specification, or be understood by implementing the present application. The objectives and other advantages of the present application can be achieved and obtained through the structures specifically pointed out in the specification and the drawings. Description of the Drawings

[0020] The drawings are used to provide a further understanding of the technical solutions of the present application, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solutions of the present application, and do not constitute a limitation to the technical solutions of the present application.

[0021] Figure 1 It is a schematic diagram of a display device according to an embodiment of the present application; Figure 2 It is a schematic diagram of a method for playing a display device according to an embodiment of the present application; Figure 3Schematic diagram of a method for turning off a display device according to an embodiment of the present application; Figure 4 Schematic diagram of another display device according to an embodiment of the present application; Figure 5 For application in Figure 4 Schematic diagram of a playing method of a display device; Figure 6 For application in Figure 4 Schematic diagram of a method for turning off a display device. Detailed implementation manners

[0022] To make the objectives, technical solutions and advantages of the present application clearer and more understandable, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined arbitrarily with each other.

[0023] The inventors of the present application found that the current operation steps for wired screen mirroring are numerous. The user still needs to press a button to turn on the device or use a remote control to turn on the device, then insert an HDMI cable, and select the signal source through the remote control or button. The above method not only takes time and effort, but may also cause situations such as being unable to hold a meeting if the remote control cannot be found. In addition, in public places such as airports and subway stations, the display terminal is usually connected to an external playback box through an HDMI cable. When the playback box is controlled to turn off, the display will still show no signal, and this state may last for 30 minutes before turning off.

[0024] Figure 1 Schematic diagram of a display device according to an embodiment of the present application. The display device is as Figure 1 shown, and includes a display panel, a main control module, a power module, an interface module, and a controller. The interface module includes at least one video input interface, and the video input interface includes at least one power-on detection pin; The controller is configured to send an enable signal to the power module when detecting that the power-on detection pin is powered on; The power module is configured to supply power to the main control module and the display panel after receiving the enable signal from the controller; The main control module is configured to determine the signal source channel corresponding to the power-on detection pin based on the power supply startup of the power module, receive the data input through the signal source channel by the video input interface, and control the display panel to display the data input by the video input interface; The display panel is configured to start and display the data input by the video input interface according to the control of the main control module.

[0025] The display device according to the embodiment of the present application includes a display panel, a main control module, a power supply module, an interface module, and a controller. Among them, the interface module includes at least one video input interface, and the video input interface includes at least one power-on detection pin; the controller is configured to send an enable signal to the power supply module when detecting that the power-on detection pin is powered on; the power supply module is configured to supply power to the main control module and the display panel after receiving the enable signal from the controller; the main control module is configured to determine the signal source channel corresponding to the power-on detection pin based on the power-on of the power supply module, receive the data input through the signal source channel by the video input interface, and control the display panel to display the data input by the video input interface; the display panel is configured to start and display the data input by the video input interface according to the control of the main control module, so that the display device can implement the function of plug-and-play.

[0026] Exemplarily, the controller in the display device can be embedded in the main control module or independent of the main control module.

[0027] For energy saving, the display device generally turns off most functions of the main control module during standby. In order to be able to turn on the device through the remote control and buttons, the normal functions of the controller and the interface part are retained, which not only saves energy consumption but also can execute the power-on instruction. The controller here has the characteristic of working in the standby mode of the display device.

[0028] In an exemplary embodiment, the video input interface can be a high-definition multimedia interface or a display interface.

[0029] The main control module can be a system-on-chip (SOC), or an FPGA or other control module that has control functions for the whole machine.

[0030] In an exemplary embodiment, the power-on detection pin can be a 5V power pin (i.e., +5VPower). When an HDMI cable is inserted into the display device, the level of the 5V power pin of the HDMI becomes +5V, and when the HDMI cable is pulled out of the display device, the level of the 5V power pin of the HDMI becomes 0V.

[0031] In an exemplary embodiment, the level detection pin can be a general-purpose input / output pin (General Purpose Input / Output, abbreviated as GPIO).

[0032] In an exemplary embodiment, the controller includes at least one level detection pin, the level detection pin is electrically connected to the power-on detection pin, and the controller detects whether the power-on detection pin is powered on through the level detection pin.

[0033] In an exemplary embodiment, the display device further includes a switch module; The switch module is configured to turn on or off a plug-and-play function according to user settings; The controller is configured to send an enabling signal to the power supply module when the switch module turns on the plug-and-play function and when it detects power-on on the power-on detection pin; and not send an enabling signal to the power supply module when the switch module turns off the plug-and-play function and when it detects power-on on the power-on detection pin.

[0034] For example, the user sets through the setting interface of the display device to turn on or off the plug-and-play function. After turning on the plug-and-play function, when the controller detects power-on on the power-on detection pin, it sends an enabling signal to the power supply module. After turning off the plug-and-play function, when the controller detects power-on on the power-on detection pin, it does not send an enabling signal to the power supply module.

[0035] In an exemplary embodiment, the controller is further configured to send source channel determination information to the main control module when the main control module starts up; The main control module is further configured to determine the source channel corresponding to the power-on detection pin according to the source channel determination information.

[0036] The source channel determination information refers to the information based on which the source channel corresponding to the power-on detection pin is determined. That is, the source channel corresponding to the power-on detection pin can be determined according to the source channel determination information.

[0037] In an exemplary embodiment, the main control module is further configured to, after its own startup, sequentially detect the signals of all the power-on detection pins of the video input interface; and determine the source channel corresponding to the powered-on power-on detection pin as the source channel corresponding to the power-on detection pin.

[0038] Detecting the signals of all the power-on detection pins of the video input interface is to detect the powered-on power-on detection pins. The signal on the unpowered power-on detection pin is a low-level signal, and the signal on the powered-on power-on detection pin is a high-level signal.

[0039] The present application also provides a display device, characterized by including a display panel, a main control module, a power supply module, an interface module, and a controller, wherein: The interface module includes at least one video input interface, and the video input interface includes at least one power-on detection pin; The controller is configured to send a power supply stop signal to the power supply module when it detects power-off on the power-on detection pin; The power supply module is configured to stop supplying power to the main control module and the display panel based on the power supply stop signal; The main control module is configured to enter the standby mode after the power supply is stopped; The display panel is configured to enter the shutdown mode after the power supply is stopped.

[0040] The display device according to the embodiment of the present application includes a display panel, a main control module, a power supply module, an interface module, and a controller, wherein: the interface module includes at least one video input interface, and the video input interface includes at least one power-on detection pin; the controller is configured to send a power supply stop signal to the power supply module when detecting that the power-on detection pin is powered off; the power supply module is configured to stop supplying power to the main control module and the display panel based on the power supply stop signal; the main control module is configured to enter the standby mode after the power supply is stopped; the display panel is configured to enter the shutdown mode after the power supply is stopped, so that the display device can implement the function of turning off immediately when unplugged.

[0041] Exemplarily, in the standby mode, the main control module will turn off most of the power regions and clocks, and only retain a very small part of the circuits.

[0042] Exemplarily, the display panel entering the shutdown mode means that the display panel is in the shutdown state due to power-off.

[0043] Exemplarily, the controller in the display device can be embedded on the main control module or independent of the main control module.

[0044] For energy saving, the display device generally turns off most of the functions of the main control module during standby. In order to be able to turn on the device through the remote control and keys, the normal functions of the controller and the interface part are retained, which not only saves energy but also can execute the power-on instruction. The controller here has the characteristic of working in the standby mode of the display device.

[0045] In an exemplary embodiment, the video input interface can be a high-definition multimedia interface or a display interface.

[0046] The main control module can be a system-on-chip (SOC), or an FPGA or other control module that has a control function for the whole machine.

[0047] In an exemplary embodiment, the power-on detection pin can be a 5V power pin.

[0048] In an exemplary embodiment, the level detection pin can be a general-purpose input / output pin.

[0049] In an exemplary embodiment, the controller includes at least one level detection pin, the level detection pin is electrically connected to the power-on detection pin, and the controller detects whether the power-on detection pin is powered on through the level detection pin.

[0050] In an exemplary embodiment, the display device further includes a switch module; The switch module is configured to turn on or off a plug-and-play-off function according to user settings; The controller is configured to send a standby signal to the main control module when the switch module turns on the plug-and-play-off function and detects that the power-on detection pin is powered off; and not send a standby signal to the main control module when the switch module turns off the plug-and-play-off function and detects that the power-on detection pin is powered off.

[0051] Exemplarily, the user sets or turns off the plug-and-play-off function through the setting interface of the display device.

[0052] Figure 2 A schematic diagram of a display device playback method according to an embodiment of the present application. The display device includes a display panel, a main control module, a power module, an interface module, and a controller. It is characterized in that the interface module includes at least one video input interface, and the video input interface includes at least one power-on detection pin; the controller includes at least one level detection pin, and the level detection pin is electrically connected to the power-on detection pin. As Figure 2 shown, the playback method includes the following steps 21 to 24: Step 21, when the controller detects that the power-on detection pin is powered on, it sends an enable signal to the power module; Step 22, after receiving the enable signal from the controller, the power module supplies power to the main control module and the display panel; Step 23, the main control module is started based on the power supply of the power module, determines the signal source channel corresponding to the power-on detection pin, receives the data input through the signal source channel by the video input interface, and controls the display panel to display the data input by the video input interface; Step 24, the display panel starts and displays the data input by the video input interface according to the control of the main control module.

[0053] The playback method of the display device according to the embodiment of the present application is that when the power-on detection pin is detected to be powered on by the controller, an enable signal is sent to the power supply module; after receiving the enable signal from the controller, the power supply module supplies power to the main control module and the display panel; the main control module is started based on the power supply of the power supply module, determines the signal source channel corresponding to the power-on detection pin, receives the data input through the signal source channel by the video input interface, and controls the display panel to display the data input by the video input interface; the display panel is started and displays the data input by the video input interface according to the control of the main control module, so that the display device can realize the function of plug-and-play.

[0054] Exemplarily, an external video output device can be inserted into the video input interface through a cable. The cable is a cable matching the video input interface. Exemplarily, the external video output device can be a computer, a playback box, etc. When the level signal of the power-on detection pin changes from low level to high level, it can be determined that the external video output device is inserted into the video input interface.

[0055] In an exemplary embodiment, when the main control module is started, the controller sends source channel determination information to the main control module; The source channel determination information includes the serial number of the level detection pin; Determining the source channel corresponding to the power-on detection pin includes: Taking the channel determined according to the serial number of the level detection pin and the correspondence between the serial number and the channel as the channel where the current signal source is located.

[0056] In an exemplary embodiment, determining the source channel corresponding to the power-on detection pin includes: After the main control module starts itself, it sequentially detects the signals of all the power-on detection pins of the video input interface; and determines the source channel corresponding to the powered-on power-on detection pin as the source channel corresponding to the power-on detection pin.

[0057] Figure 3 It is a schematic diagram of the shutdown method of the display device according to the embodiment of the present application. The display device includes a display panel, a main control module, a power supply module, an interface module, and a controller, and is characterized in that the interface module includes at least one video input interface, and the video input interface includes at least one power-on detection pin; the controller includes at least one level detection pin, and the level detection pin is electrically connected to the power-on detection pin; as Figure 3 shown, the shutdown method includes the following steps 31 to 33: Step 31, when the controller detects that the power-on detection pin is powered off, it sends a power-off signal to the power supply module; Step 32, the power supply module stops supplying power to the main control module and the display panel based on the power supply stop signal; Step 33, the main control module enters the standby mode after the power supply is stopped; the display panel enters the shutdown mode after the power supply is stopped.

[0058] In the shutdown method of the embodiment of the present application, when the controller detects that the power-on detection pin is powered down, it sends a power supply stop signal to the power supply module; the power supply module stops supplying power to the main control module and the display panel based on the power supply stop signal; the main control module enters the standby mode after the power supply is stopped; the display panel enters the shutdown mode after the power supply is stopped, so that the display device realizes the function of turning off immediately when unplugged.

[0059] Figure 4 It is a schematic diagram of a display device according to an embodiment of the present application. As Figure 4 shown, the display device includes multiple HDMI interfaces (corresponding to the above video input interfaces): the first HDMI interface HDMI1, the second HDMI interface HDMI2, the third HDMI interface HDMI3, an SOC (System on Chip) module (corresponding to the above main control module), the SOC module includes an MCU module (i.e., the controller), and the MCU module includes multiple GPIO pins: the first GPIO pin GPIO1, the second GPIO pin GPIO2, the third GPIO pin GPIO3. The first HDMI interface HDMI1 has a first power pin P1, the second HDMI interface HDMI2 has a second power pin P2, and the third HDMI interface HDMI3 has a third power pin P3. The first power pin P1 is electrically connected to the first GPIO pin GPIO1, the second power pin P2 is electrically connected to the second GPIO pin GPIO2, and the third power pin P3 is electrically connected to the third GPIO pin GPIO3.

[0060] Among them, the SOC module is the control main board of the display device, which controls the display of the whole machine and the control of other modules. When the whole machine is in the standby mode, except for the internal MCU module and its related pins of the SOC module, the rest are in the off state. After the whole machine stands by, the MCU module and its related pins are still in the powered-on state.

[0061] Exemplarily, when a powered-on laptop computer is inserted into the first HDMI interface HDMI1 through an HDMI cable, the level of the first power pin P1 will change from low level to high level; when the HDMI cable is unplugged from the first HDMI interface HDMI1, the level of the first power pin P1 will change from high level to low level. Since the first power pin P1 is electrically connected to the first GPIO pin GPIO1, the level change of the first GPIO pin GPIO1 follows the level change of the first power pin P1.

[0062] Figure 5 shows the process of the display device implementing the plug-and-play function as follows: Figure 4 shown: 1) Insert the powered-on laptop computer into the first HDMI interface HDMI1 of the standby display device through an HDMI cable; the level of the first power pin P1 of the first HDMI interface HDMI1 will change from low level to high level; 2) The MCU module detects that the level of the first GPIO pin GPIO1 changes to high level; 3) The MCU module sends a power supply enable signal to the power supply unit of the SOC module; 4) The SOC module starts and the display device powers on; 5) After the display device powers on, the MCU module sends the serial number of the first GPIO pin GPIO1 to the SOC module; 6) The SOC module determines the source channel where the current signal source is located according to the correspondence between the GPIO pin and the source channel, switches the playback channel to this source channel, and plays the video signal of this source channel, that is, the screen of the current laptop computer.

[0063] Figure 6 shows the process of the display device implementing unplug-and-off as follows: Figure 4 shown: 1) Pull out the HDMI cable from the first HDMI interface HDMI1 of the powered-on display device; the level of the first power pin P1 of the first HDMI interface HDMI1 will change from high level to low level; 2) The MCU module detects that the level of the first GPIO pin GPIO1 changes to low level; 3) The MCU module sends a stop power supply signal to the power supply unit of the SOC module, and after waiting for a preset duration, shuts down the power supply of the SOC module; 4) Due to power-off, the display device shuts down other parts except the MCU module and enters the standby mode.

[0064] For the display device in the standby mode, the normal functions of the MCU module and the interface part are reserved for the remote control and buttons to power on, which not only saves energy but also can execute the power-on instruction.

[0065] In this example, the power supply unit of the SOC module can also be used to supply power to the display panel.

[0066] This application describes multiple embodiments, but the description is exemplary rather than restrictive, and it will be apparent to those of ordinary skill in the art that there can be more embodiments and implementation solutions within the scope of the embodiments described in this application. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are also possible. Unless specifically restricted, any feature or element of any embodiment can be used in combination with any other feature or element in any other embodiment, or can replace any other feature or element in any other embodiment.

[0067] This application includes and contemplates combinations with features and elements known to those of ordinary skill in the art. The embodiments, features, and elements disclosed in this application can also be combined with any conventional features or elements to form unique inventive solutions. Any feature or element of any embodiment can also be combined with features or elements from other inventive solutions to form another unique inventive solution. Therefore, it should be understood that any feature shown and / or discussed in this application can be implemented alone or in any suitable combination. Therefore, the embodiments are not subject to other limitations except those imposed by the appended claims and their equivalents. In addition, various modifications and changes can be made within the scope of the appended claims.

[0068] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a particular sequence of steps. However, to the extent that the method or process does not depend on the particular sequence of steps described herein, the method or process should not be limited to the particular sequence of steps described. As will be understood by those of ordinary skill in the art, other sequences of steps are possible. Therefore, the particular sequence of steps set forth in the specification should not be construed as a limitation on the claims. In addition, the claims directed to the method and / or process should not be limited to performing their steps in the order written, and those skilled in the art can readily understand that these orders can vary and still remain within the spirit and scope of the embodiments of this application.

[0069] Those of ordinary skill in the art can understand that all or some of the steps in the methods disclosed above, and the functional modules / units in systems and devices, can be implemented as software, firmware, hardware, and their appropriate combinations. In the hardware implementation, the division between the functional modules / units mentioned above does not necessarily correspond to the division of physical components; for example, one physical component can have multiple functions, or one function or step can be executed by several physical components in cooperation. Some or all components can be implemented as software executed by a processor, such as a digital signal processor or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include a computer storage medium (or non-transitory medium) and a communication medium (or transitory medium). As is well known to those of ordinary skill in the art, the term "computer storage medium" includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassette, tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, a communication medium typically contains computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and can include any information delivery medium.

[0070] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. can explicitly or implicitly include at least one of such features.

[0071] In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0072] In this application, unless otherwise clearly specified and limited, the terms "install", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0073] In this application, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature.

[0074] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example" or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0075] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A display device, comprising a display panel, a main control module, a power supply module, an interface module, and a controller, characterized in that: The interface module includes at least one video input interface, and the video input interface includes at least one power-on detection pin; The controller is configured to send an enable signal to the power supply module when detecting that the power-on detection pin is powered on; The power supply module is configured to supply power to the main control module and the display panel after receiving the enable signal from the controller; The main control module is configured to determine the source channel corresponding to the power-on detection pin based on the power-on of the power supply module, receive data input through the source channel by the video input interface, and control the display panel to display the data input by the video input interface; The display panel is configured to start and display the data input by the video input interface according to the control of the main control module.

2. The display device according to claim 1, characterized in that: The controller includes at least one level detection pin, the level detection pin is electrically connected to the power-on detection pin, and the controller detects whether the power-on detection pin is powered on through the level detection pin.

3. The display device according to claim 1, characterized in that: The controller is further configured to send source channel determination information to the main control module when the main control module starts; The main control module is further configured to determine the source channel corresponding to the power-on detection pin according to the source channel determination information.

4. The display device according to claim 1, characterized in that: The main control module is further configured to, after its own startup, sequentially detect the signals of all the power-on detection pins of the video input interface; determine the source channel corresponding to the powered-on power-on detection pin as the source channel corresponding to the power-on detection pin.

5. The display device according to claim 2, wherein It further includes a switch module; The switch module is configured to turn on or off the plug-and-play function according to user settings; The controller is configured to send an enable signal to the power supply module when the switch module turns on the plug-and-play function and detects that the power-on detection pin is powered on; and not send an enable signal to the power supply module when the switch module turns off the plug-and-play function and detects that the power-on detection pin is powered on.

6. The display device according to claim 1, characterized in that: The video input interface is a high-definition multimedia interface or a display interface; The power-on detection pin is a 5V power pin.

7. The display device according to claim 2, characterized in that: The level detection pin is a general-purpose input / output pin.

8. A display device, characterized in that, It includes a display panel, a main control module, a power supply module, an interface module, and a controller, wherein: The interface module includes at least one video input interface, and the video input interface includes at least one power-on detection pin; The controller is configured to send a power-off signal to the power supply module when detecting that the power-on detection pin is powered off; The power supply module is configured to stop supplying power to the main control module and the display panel based on the power-off signal; The main control module is configured to enter the standby mode after being powered off; The display panel is used to enter the shutdown mode after the power supply is stopped.

9. The display device according to claim 8, wherein the controller includes at least one level detection pin, the level detection pin is electrically connected to the power-on detection pin, and the controller detects whether the power-on detection pin is powered on through the level detection pin.

10. The display device according to claim 9, wherein, It further includes a switch module; The switch module is used to turn on or off the plug-and-play function according to user settings; The controller is used to send a standby signal to the main control module when the switch module turns on the plug-and-play function and detects that the power-on detection pin is powered off; when the switch module turns off the plug-and-play function and detects that the power-on detection pin is powered off, it does not send a standby signal to the main control module.

11. A playing method of a display device, the display device comprising a display panel, a main control module, a power module, an interface module, and a controller, characterized in that, The interface module includes at least one video input interface, the video input interface includes at least one power-on detection pin; the controller includes at least one level detection pin, the level detection pin is electrically connected to the power-on detection pin; the method includes: When the controller detects that the power-on detection pin is powered on, it sends an enable signal to the power supply module; After receiving the enable signal from the controller, the power supply module supplies power to the main control module and the display panel; Based on the power supply of the power supply module, the main control module determines the signal source channel corresponding to the power-on detection pin, receives the data input through the signal source channel by the video input interface, and controls the display panel to display the data input by the video input interface; The display panel starts and displays the data input by the video input interface according to the control of the main control module.

12. The playback method according to claim 11, wherein when the main control module starts, the controller sends signal source channel determination information to the main control module; The signal source channel determination information includes the serial number of the level detection pin; Determining the signal source channel corresponding to the power-on detection pin includes: Taking the channel determined according to the serial number of the level detection pin and the corresponding relationship between the serial number and the channel as the channel where the current signal source is located.

13. The playback method according to claim 11, wherein Determining the signal source channel corresponding to the power-on detection pin includes: After the main control module starts itself, it sequentially detects the signals of all the power-on detection pins of the video input interface; determines the signal source channel corresponding to the powered-on power-on detection pin as the signal source channel corresponding to the power-on detection pin.

14. A method for shutting down a display device, the display device comprising a display panel, a main control module, a power module, an interface module, and a controller, characterized in that, The interface module includes at least one video input interface, the video input interface includes at least one power-on detection pin; the controller includes at least one level detection pin, the level detection pin is electrically connected to the power-on detection pin; the method includes: When the controller detects that the power-on detection pin is powered off, it sends a power-off signal to the power supply module; Based on the power-off signal, the power supply module stops supplying power to the main control module and the display panel; After the main control module is powered off, it enters the standby mode; After the power supply to the display panel is stopped, it enters the shutdown mode.

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