Display device and communication method

Abstract

The invention discloses a display device and a communication method, and the display device comprises a first processing module which is used for responding to a first signal sent by an electronic device connected with the display device through a first communication channel when the display device is in a first state, and sending a power supply signal to a power supply module; the power supply module is used for supplying power to the communication module in response to a power supply signal, the communication module is in a working state to enable the display equipment to be in a second state, and the communication module is used for supporting data transmission between the external equipment and the display equipment; wherein under the condition that the display equipment is in the second state, the communication module is in a working state, and the display equipment is not used for displaying an image signal output by the electronic equipment; when the display device is in the first state, the communication module is in a non-working state, and the display device is not used for displaying an image signal output by the electronic device.

Description

Technical Field

[0001] This application relates to a display device and a communication method. Background Art

[0002] Currently, when the display is in the off state or low-power state, it does not support data transmission or command transmission; when data needs to be transmitted to the display, it can only be achieved by turning on the display, which will greatly increase the power consumption of the display; based on this, how to optimize the power consumption of the display is a technical problem that needs to be solved urgently at present. Summary of the Invention

[0003] Embodiments of this application provide a display device and a communication method.

[0004] The technical solution of the embodiments of this application is implemented as follows:

[0005] In a first aspect, embodiments of this application provide a display device, including:

[0006] A first processing module, configured to, when the display device is in a first state, in response to obtaining a first signal sent by an electronic device connected to the display device through a first communication channel, send a power supply signal to a power supply module;

[0007] A power supply module, configured to, in response to the power supply signal, supply power to a communication module, and the communication module is in a working state, so that the display device is in a second state, and the communication module is used to support data transmission between an external device and the display device;

[0008] Wherein, when the display device is in the second state, the communication module is in a working state, and the display device is not used to display an image signal output by the electronic device;

[0009] When the display device is in the first state, the communication module is in a non-working state, and the display device is not used to display an image signal output by the electronic device,

[0010] The power consumption of the display device in the second state is greater than that in the first state.

[0011] In the above display device, the first processing module is further configured to, when the display device is in a third state, obtain a second signal sent by the electronic device based on the first communication channel, and perform a handshake with the electronic device based on the second signal, so that the display device can obtain an image signal output by the electronic device or adjust image output parameters of an image output by the display device based on the second signal; and obtain an image signal output by the electronic device through a second communication channel, and control an image output module to output an image corresponding to the image signal based on the image signal;

[0012] Wherein, when the display device is in the third state, the communication module is in the working state, and the power consumption of the display device in the third state is greater than that in the second state.

[0013] In the above display device, the connection between the display device and the electronic device includes that the first processing module is connected to the electronic device through the first communication interface.

[0014] The first processing module is further configured to receive the first signal through the first communication channel of the first communication interface when the electronic device does not output an image signal through the first communication interface; and receive the image signal through the second communication channel of the first communication interface when the electronic device outputs an image signal through the first communication interface.

[0015] Wherein, the first communication channel and the second communication channel are different communication channels established based on one communication interface for communication connection.

[0016] In the above display device, the connection between the display device and the electronic device includes that the first processing module is connected to the electronic device through the second communication interface. The second communication interface includes a first communication interface for receiving the first signal and a second communication interface for receiving the image signal.

[0017] The first communication channel is further configured to support the display device and the electronic device to communicate power supply parameters, so that the display device can supply power to the electronic device based on the power supply parameters.

[0018] The data transmission rate of the first communication channel is lower than that of the second communication channel.

[0019] In the above display device, the second processing module is configured to obtain the first firmware data stored in the external device in communication connection with the communication module when the display device is in the second state, and use the first firmware data to replace the current firmware data of the display device.

[0020] In the above display device, the second processing module is further configured to generate a firmware upgrade failure prompt message when the replacement of the current firmware data cannot be completed; and

[0021] When the reconnected electronic device of the display device is the same as the electronic device that issues the firmware replacement instruction, make the display device output a firmware upgrade failure prompt message.

[0022] In the above display device, the first processing module is further configured to receive an input signal from an external device through the communication module when the display device is in the second state, and send the input signal to the electronic device.

[0023] In a second aspect, an embodiment of the present application provides a communication method for a display device. The method includes:

[0024] When the display device is in the first state, in response to obtaining a first signal sent by an electronic device connected to the display device through a first communication channel, the first processing module sends a power supply signal to the power supply module;

[0025] In response to the power supply signal, the power supply module supplies power to the communication module, and the communication module is in a working state, so that the display device is in a second state. The communication module is used to support data transmission between an external device and the display device;

[0026] Wherein, when the display device is in the second state, the communication module is in a working state, and the display device is not used to display the image signal output by the electronic device; when the display device is in the first state, the communication module is in a non-working state, and the display device is not used to display the image signal output by the electronic device; the power consumption of the display device in the second state is greater than that in the first state.

[0027] In the above communication method of the display device, it further includes:

[0028] Obtain first firmware data through the communication module;

[0029] When the replacement of the current firmware data with the first firmware data is completed, generate a firmware upgrade success prompt message;

[0030] When the replacement of the current firmware data with the first firmware data cannot be completed, generate a firmware upgrade failure prompt message.

[0031] In the above communication method of the display device, it further includes:

[0032] Obtain the first identification information of the device that issues the firmware replacement instruction;

[0033] Obtain the second identification information of the electronic device reconnected to the display device;

[0034] When the first identification information and the second identification information are the same, output a firmware upgrade failure prompt message. Brief Description of the Drawings

[0035] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of illustrating the preferred embodiments and are not considered to be a limitation of the present application.

[0036] Figure 1 Structural schematic of the display device proposed in the embodiment of the present application Figure 1 ;

[0037] Figure 2 Structural schematic of the display device proposed in the embodiment of the present application Figure 2;

[0038] Figure 3 Schematic diagram of the implementation process of the communication method of the display device provided by the embodiment of the present application;

[0039] Figure 4 Schematic diagram of the implementation of the communication method of the display device provided by the embodiment of the present application. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. It can be understood that the specific embodiments described herein are only used to explain the related application, rather than limiting the application. In addition, it should be noted that for the sake of description, only parts related to the related application are shown in the drawings.

[0041] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application.

[0042] The description of the communication method of the display device in the embodiment of the present application is similar to the description of the display device embodiment, and has similar beneficial effects as the display device embodiment, so it will not be repeated. For the technical details not disclosed in the embodiment of the communication method of the present display device, please refer to the description of the display device embodiment of the present application for understanding.

[0043] An embodiment of the present application provides a display device; as Figure 1 shown, the display device 1 may include a first processing module 11, a power supply module 12, and a communication module 13.

[0044] In the embodiment of the present application, the display device may be any device with image output ability and including a display module, which is not specifically limited in the present application. For example, the display device may be a liquid crystal display, a smart TV, etc.

[0045] In the embodiment of the present application, the first processing module may be a module in the display device with computing and processing functions, which is not specifically limited in the present application. For example, the first processing module may be the main control chip in the display.

[0046] In the embodiment of the present application, the power supply module may be used to supply power to the components in the display device.

[0047] In the embodiment of the present application, the communication module may be any device capable of supporting data transmission between an external device and the display device, which is not limited in the present application. For example, the communication module may be a USB hub in the display device, which can expand a single USB port into multiple ports to achieve multi-device connection and centralized management of data / power supply.

[0048] In an embodiment of the present application, the first processing module 11 can be configured to, when the display device is in the first state, in response to obtaining a first signal sent by an electronic device connected to the display device through a first communication channel, send a power supply signal to the power supply module.

[0049] In an embodiment of the present application, the first state represents a state in which both the display function and the communication function of the display device are turned off; for example, the first state may be the low-power state of the display. In the low-power state, the display is turned off, and not only is there no display, but also the USB Hub function is turned off.

[0050] In an embodiment of the present application, the first communication channel represents a communication channel for transmitting the first signal; the first signal represents a signal for instructing the communication module to be turned on; the signal type of the first signal is not limited in the present application. For example, when the first communication channel is a Display Data Channel (DDC), the first signal may be a Display Data Channel / Command Interface (DDC / CI) signal.

[0051] In some embodiments of the present application, the power supply signal is a signal for triggering the power supply module to supply power to the communication module; the signal type of the power supply signal is not limited in the present application. For example, the power supply signal may be a certain level signal.

[0052] In an embodiment of the present application, the power supply module 12 can be configured to, in response to the power supply signal, supply power to the communication module, and the communication module is in a working state, so that the display device is in the second state.

[0053] In some embodiments of the present application, the power supply module may include a power management module and a power switch control module; when the power supply module supplies power to the communication module, the power management module can be configured to, in response to the power supply signal, adjust the input power supply voltage to the power supply voltage of the communication module; the power switch control module can be configured to, in response to the power supply signal, switch the power switch for controlling the power supply of the communication module to the on state.

[0054] In an embodiment of the present application, the second state represents a state in which the display function of the display is turned off, but the communication function is turned on; for example, the second state may be a state in which the display has no display but the USB Hub function is turned on in the low-power state of the display.

[0055] In an embodiment of the present application, the communication module 13 can be used to support data transmission between an external device and the display device.

[0056] In the embodiments of the present application, the external device is not specifically limited. For example, the external device can be a storage device or an input device. The storage device can be a mobile hard disk, a USB flash drive, etc., and the input device can be a mouse, a keyboard, etc.

[0057] In the embodiments of the present application, when the display device is in the second state, the communication module is in the working state, and the display device is not used to display the image signal output by the electronic device.

[0058] In the embodiments of the present application, the electronic device can be a computing device with data processing and operation functions. For example, the electronic device can be a personal computer (PC), a laptop, a mobile phone, a tablet, etc.

[0059] In the embodiments of the present application, when the display device is in the first state, the communication module is in the non-working state, and the display device is not used to display the image signal output by the electronic device.

[0060] That is to say, the display device can receive the first signal sent by the electronic device through the first communication channel, thereby triggering the display device to switch from the first state to the second state. In the second state, the display device can turn off the display function, without image or picture display, but turn on the communication function, so that the external device connected to the display device can perform data transmission with the display device. Thus, it is possible to communicate with the display device without turning on the display device, effectively improving the intelligence and operation convenience of the display device.

[0061] In the embodiments of the present application, the power consumption of the display device in the second state is greater than that in the first state.

[0062] It can be understood that when the display device is in the first state, the communication module is in the power-off state. When the display device is in the second state, the communication module can be powered separately to separately turn on the communication function of the display device. Therefore, the power consumption of the display device in the second state will be greater than that in the first state.

[0063] In the embodiments of the present application, the first processing module 11 can also be used to, when the display device is in the third state, obtain the second signal sent by the electronic device based on the first communication channel, and perform a handshake with the electronic device based on the second signal, so that the display device can obtain the image signal output by the electronic device or adjust the image output parameters of the image output by the display device based on the second signal; and obtain the image signal output by the electronic device through the second communication channel, and control the image output module to output an image corresponding to the image signal based on the image signal.

[0064] In an embodiment of the present application, when the display device is in the third state, the communication module is in the working state, and the power consumption of the display device in the third state is greater than that in the second state.

[0065] In an embodiment of the present application, the third state represents that the display device is in the normal working state, that is, the state where both the communication function and the display function are turned on. In this state, an external device can perform data transmission with the display device, and the display device can perform image or screen display.

[0066] In an embodiment of the present application, the second signal is used to establish a communication connection between the electronic device and the display device, so that the display device can receive relevant data output by the electronic device for image display or adjustment.

[0067] In an embodiment of the present application, the second communication channel can be used to support the transmission of image signals between the electronic device and the display device, so that the display device can perform image display according to the image signals.

[0068] In an embodiment of the present application, the image output parameter represents a parameter of a physical or logical index controlled by the display device when rendering an image; the image output parameter can be used to define characteristics such as the clarity, color performance, and dynamic smoothness of the screen; for example, the image output parameter can include parameters such as resolution, refresh rate, and contrast.

[0069] In an embodiment of the present application, the display device can be connected to the electronic device through different communication interfaces. The communication interfaces can include a first communication interface and a second communication interface; regardless of the communication interface used to connect to the electronic device, the display device can transmit the first signal based on the first communication channel under the communication interface, and transmit the image signal based on the second communication channel under the communication interface.

[0070] In some embodiments of the present application, the first communication channel and the second communication channel are different communication channels established based on a communication interface.

[0071] In some embodiments of the present application, the connection between the display device and the electronic device includes that the first processing module is connected to the electronic device through the first communication interface; the first processing module is further configured to receive the first signal through the first communication channel of the first communication interface when the electronic device does not output an image signal through the first communication interface; and receive the image signal through the second communication channel of the first communication interface when the electronic device outputs an image signal through the first communication interface.

[0072] Exemplarily, assume that the first communication interface is a High-Definition Multimedia Interface (HDMI), the first communication channel can be a Display Data Channel (DDC), and the second communication channel can be a DisplayPort (DP) channel; the display device is connected to the electronic device through HDMI, that is, the first processing module in the display device can be connected to the electronic device through HDMI; when the display device is in the first state, no image signal is transmitted. When it is necessary to trigger the activation of the communication module, the first processing module can receive the first signal through DDC, and the first processing module can receive the first signal that is DDC / CI sent by the electronic device; when it is necessary for the display device to perform image display, the image signal can be received through the DP channel.

[0073] Exemplarily, assume that the first communication interface is a USB interface, the first communication channel can be a USB Configuration Channel (CC) channel, and the second communication channel can be a high-speed data channel of USB; the display device is connected to the electronic device through the USB interface, that is, the first processing module in the display device can be connected to the electronic device through the USB interface; when the display device is in the first state, no image signal is transmitted. When it is necessary to trigger the activation of the communication module, the first processing module can receive the first signal through the USB CC channel; when it is necessary for the display device to perform image display, the image signal can be received through the high-speed data channel of USB.

[0074] In some embodiments of the present application, the USB CC channel is a key signal channel in the USB interface for device connection management, role negotiation, and function configuration; when transmitting the first signal based on the USB CC channel, the high-speed data channel in the USB interface may not be activated.

[0075] In some embodiments of the present application, the connection between the display device and the electronic device may include that the first processing module is connected to the electronic device through the second communication interface, and the second communication interface includes a first communication interface for receiving the first signal and a second communication interface for receiving the image signal.

[0076] Exemplarily, assume that the first communication interface is HDMI, then the second communication interface can be a USB interface; assume that the first communication interface is a USB interface, then the second communication interface can be HDMI.

[0077] In some embodiments of the present application, the first communication channel can also be used to support the display device and the electronic device to communicate power supply parameters, so that the display device can supply power to the electronic device based on the power supply parameters.

[0078] Exemplarily, assume that the second communication interface is a USB interface, the electronic device is a laptop computer, and the first communication channel is a USB CC channel; then the display device can also communicate with the laptop computer through the USB CC channel to obtain the power supply parameters, so that the display device can supply power to the laptop computer according to the power supply parameters.

[0079] In some embodiments of the present application, the data transmission rate of the first communication channel is lower than that of the second communication channel.

[0080] Exemplarily, the display device is connected to the electronic device through a USB interface. The two communication channels corresponding to the USB interface include a USB CC channel and a high-speed data channel of the USB. The USB CC channel is the first communication channel, and the high-speed data channel of the USB is the second communication channel. The data transmission rate of the USB CC channel is lower than that of the high-speed data channel of the USB.

[0081] Currently, the high-speed firmware upgrade solution of the display is implemented based on the USB interface. However, limited by the industry energy consumption specification, after the display is turned off, the main control chip (Scalar) will cut off the power supply to the USB Hub, resulting in a complete interruption of the data transmission function of the USB interface; thus, it is impossible to perform a high-speed firmware (Firmware, FW) upgrade on the display; therefore, how to perform data transmission on the display without turning on the display, including implementing a high-speed firmware upgrade of the display, is a technical problem that needs to be solved urgently at present.

[0082] In some embodiments of the present application, as Figure 2 shown, the display device may further include a second processing module 14; the second processing module can be used to obtain the first firmware data stored in an external device that is in communication connection with the communication module when the display device is in the second state, and use the first firmware data to replace the current firmware data of the display device.

[0083] In the embodiments of the present application, the second processing module represents a module for performing firmware upgrade of the display device. The second processing module can be the same as the first processing module; for example, both the first processing module and the second processing module are the main control chips of the display device; the second processing module can also be different from the first processing module. For example, the first processing module is the main control chip of the display device, and the second processing module is a microcontroller unit (MCU) or a Hub chip.

[0084] In the embodiments of the present application, the first firmware data represents the firmware data for performing firmware upgrade on the display device, that is, the first firmware data is the data used to replace the current firmware data of the display device to complete the upgrade.

[0085] Exemplarily, the external device is a USB flash drive that stores first firmware data. The second processing module can complete the firmware upgrade by reading the first firmware data stored in the USB flash drive and using the first firmware data to replace the current firmware data of the display device.

[0086] In some embodiments of the present application, the second processing module can directly read and load the first firmware data to complete the replacement of the current firmware data; it can also, after reading the first firmware data, first cache the first firmware data into a buffer area, and then load the first firmware data from the buffer area to replace the current firmware data to complete the firmware upgrade; among them, by first caching and then loading the first firmware data from the firmware storage area, there is a certain degree of flexibility in firmware upgrade. For example, the upgrade can be interrupted at any time, and then the firmware data can be loaded again from the firmware storage area to continue the firmware upgrade.

[0087] In some embodiments of the present application, the second processing module can also be used to generate a firmware upgrade failure prompt message when the replacement of the current firmware data cannot be completed; and when the electronic device reconnected to the display device is the same as the electronic device that issued the firmware replacement instruction, cause the display device to output the firmware upgrade failure prompt message.

[0088] In some embodiments of the present application, the second processing module can also be used to generate a firmware upgrade success prompt message when the replacement of the current firmware data with the first firmware data is completed.

[0089] In some embodiments of the present application, the second processing module can also be used to obtain the first identification information of the device that issued the firmware replacement instruction and the second identification information of the electronic device reconnected to the display device; and when the first identification information and the second identification information are the same, output the firmware upgrade failure prompt message.

[0090] In some embodiments of the present application, the second processing module can also be used to prevent the display device from outputting the firmware upgrade failure prompt message when the electronic device reconnected to the display device is different from the electronic device that issued the firmware replacement instruction.

[0091] In the embodiments of the present application, the firmware upgrade failure prompt message is used to indicate that the current firmware upgrade has failed; the type of the firmware upgrade failure prompt message is not limited in the present application. For example, a pop-up message can be generated to prompt the firmware upgrade failure.

[0092] In the embodiments of the present application, the electronic device that issues the firmware replacement instruction represents the device that instructs the display device to perform firmware upgrade; the reconnected electronic device represents the electronic device connected to the display device after the firmware upgrade operation is completed.

[0093] Exemplarily, an electronic device A connected to a display device sends a firmware replacement instruction to the display device. The second processing module loads according to the first firmware data stored in an external device to perform a firmware upgrade operation. Assuming that the second processing module fails to complete the replacement of the current firmware data, that is, the firmware upgrade fails, the second processing module can first generate a firmware upgrade failure prompt message. Assuming that the display device is disconnected from the electronic device A and connected to the electronic device B at this time, since the electronic device B is a reconnected electronic device and is different from the electronic device A that issues the firmware replacement instruction, the second processing module will not cause the display device to output the firmware upgrade failure promotion message; if the reconnected electronic device is still the electronic device A, the second processing module causes the display device to output the firmware upgrade failure prompt message.

[0094] In some embodiments of the present application, the first processing module can also be used to receive an input signal from an external device through the communication module and send the input signal to the electronic device when the display device is in the second state.

[0095] In an embodiment of the present application, the display device can support external expansion in a non-powered-on state. For example, when the external device is an input device such as a mouse or a keyboard, that is, the display device can act as a transfer between the external device and the electronic device in the second state and send the input signal of the external device to the electronic device to perform corresponding input operations.

[0096] Exemplarily, the electronic device is a laptop computer, and the laptop computer has only one HDMI and USB interface. When it is necessary to externally connect a mouse, a keyboard, a USB flash drive, etc., there will be a problem of insufficient interfaces. Although the current related methods can transfer through a display, the display needs to be turned on, and turning on the display will increase power consumption. At this time, the display can trigger the power supply of the communication module by receiving the first signal of the laptop computer, so that the display switches from the first state to the second state, enabling the display to support communication with external devices in the second state, greatly reducing the power consumption when using the display for external transfer.

[0097] An embodiment of the present application provides a display device, comprising: a first processing module, for sending a power supply signal to a power supply module in response to obtaining a first signal sent by an electronic device connected to the display device through a first communication channel when the display device is in a first state; a power supply module, for supplying power to a communication module in response to the power supply signal, the communication module being in a working state, so that the display device is in a second state, the communication module being used to support data transmission between an external device and the display device; wherein, when the display device is in the second state, the communication module is in a working state, and the display device is not used to display an image signal output by the electronic device; when the display device is in the first state, the communication module is in a non-working state, and the display device is not used to display an image signal output by the electronic device; the power consumption of the display device in the second state is greater than the power consumption in the first state. It can be seen that the display device in the embodiment of the present application can receive the first signal sent by the electronic device through the first communication channel in a non-working state, that is, when the display function is not turned on, and send a power supply signal to the power supply module in response to the first signal, so that the power supply module supplies power to the communication module to turn on the communication module alone, and then realize data transmission between the external device and the display device based on the turned-on communication module. At this time, the display device switches from the first state to the second state. In the second state, the display device still has no display output, so that data transmission between the external device and the display device can be realized without turning on the display, that is, the display is in a non-working state, which greatly improves the operability of data transmission to the display device.

[0098] Based on the above embodiment, in another embodiment of the present application, a communication method for a display device is provided, which is applied to a display device, such as Figure 3 As shown, the communication method of the display device may include the following steps:

[0099] Step 101: When a display device is in a first state, a first processing module sends a power supply signal to a power supply module in response to obtaining a first signal sent by an electronic device connected to the display device through a first communication channel.

[0100] In an embodiment of the present application, the first processing module in the display device can send a power supply signal to the power supply module in response to obtaining a first signal sent by an electronic device connected to the display device through a first communication channel when the display device is in a first state.

[0101] In an embodiment of the present application, the first state represents a state in which both the display function and the communication function of the display device are turned off; for example, the first state may be a low power consumption state of the display. In the low power consumption state, the display is turned off, not only is there no display, but the USB Hub function is also turned off.

[0102] In an embodiment of the present application, the first signal represents a signal for indicating the activation of a communication module; the type of the first signal is not limited in the present application. For example, when the first communication channel is a display data channel, the first signal may be a DDC / CI signal.

[0103] In an embodiment of the present application, the power supply signal is a signal for triggering the power supply module to supply power to the communication module.

[0104] In some embodiments of the present application, the connection between the display device and the electronic device includes the first processing module being connected to the electronic device through the first communication interface and the first processing module being connected to the electronic device through the second communication interface.

[0105] Step 102: The power supply module supplies power to the communication module in response to the power supply signal, and the communication module is in an operating state, so that the display device is in a second state. The communication module is used to support data transmission between the external device and the display device.

[0106] In an embodiment of the present application, when the first processing module in the display device is in the first state of the display device, in response to obtaining the first signal sent by the electronic device connected to the display device through the first communication channel, after sending the power supply signal to the power supply module, the power supply module in the display device supplies power to the communication module in response to the power supply signal, and the communication module is in an operating state, so that the display device is in a second state. The communication module is used to support data transmission between the external device and the display device.

[0107] In an embodiment of the present application, when the display device is in the second state, the communication module is in an operating state, and the display device is not used to display the image signal output by the electronic device; when the display device is in the first state, the communication module is in a non-operating state, and the display device is not used to display the image signal output by the electronic device; the power consumption of the display device in the second state is greater than that in the first state.

[0108] In some embodiments of the present application, the display device can obtain the first firmware data through the communication module; when the replacement of the current firmware data with the first firmware data is completed, a firmware upgrade success prompt message is generated; when the replacement of the current firmware data with the first firmware data cannot be completed, a firmware upgrade failure prompt message is generated.

[0109] In some embodiments of the present application, the display device may further include a second processing module, which represents a module for performing the firmware upgrade of the display device. The second processing module may be the same as or different from the first processing module.

[0110] In some embodiments of the present application, the second processing module may generate a firmware upgrade success prompt message when it finishes replacing the current firmware data with the first firmware data; the second processing module generates a firmware upgrade failure prompt message when it fails to complete the replacement of the current firmware data.

[0111] In some embodiments of the present application, the second processing module may directly read and load the first firmware data to complete the replacement of the current firmware data; it may also, after reading the first firmware data, first cache the first firmware data into a buffer area, and then load the first firmware data from the buffer area to replace the current firmware data to complete the firmware upgrade; among them, by first caching and then loading the first firmware data from the firmware storage area, there is a certain degree of flexibility in firmware upgrade. For example, the upgrade can be interrupted at any time, and the firmware data can be loaded again from the firmware storage area next time to continue the firmware upgrade.

[0112] In some embodiments of the present application, the display device may obtain the first identification information of the device that issues the firmware replacement instruction, and obtain the second identification information of the electronic device reconnected to the display device; when the first identification information and the second identification information are the same, a firmware upgrade failure prompt message is output.

[0113] In some embodiments of the present application, the second processing module may obtain the first identification information of the device that issues the firmware replacement instruction and the second identification information of the electronic device reconnected to the display device; when the first identification information and the second identification information are the same, a firmware upgrade failure prompt message is output.

[0114] In the embodiments of the present application, the types of the firmware upgrade failure prompt message and the firmware upgrade success prompt message are not limited in the present application. For example, a pop-up message may be generated to prompt the success or failure of the firmware upgrade.

[0115] In the embodiments of the present application, the display device can support data transmission between it and an external device in the second state. Based on this, the display device can support external expansion in the off state, that is, the second state. For example, when the external device is an input device such as a mouse or a keyboard, the display device can act as a transfer between the external device and the electronic device in the second state, and send the input signal of the external device to the electronic device to perform corresponding input operations.

[0116] An embodiment of the present application provides a communication method for a display device. When the display device is in a first state, in response to obtaining a first signal sent by an electronic device connected to the display device through a first communication channel, a first processing module sends a power supply signal to a power supply module. In response to the power supply signal, the power supply module supplies power to a communication module, and the communication module is in a working state, so that the display device is in a second state. The communication module is used to support data transmission between an external device and the display device. Among them, when the display device is in the second state, the communication module is in a working state, and the display device is not used to display an image signal output by the electronic device. When the display device is in the first state, the communication module is in a non-working state, and the display device is not used to display an image signal output by the electronic device. The power consumption of the display device in the second state is greater than that in the first state. It can be seen that the display device in the embodiment of the present application can receive the first signal sent by the electronic device through the first communication channel in the non-working state, that is, when the display function is not turned on, and in response to the first signal, send a power supply signal to the power supply module, so that the power supply module supplies power to the communication module to separately turn on the communication module. Furthermore, data transmission between the external device and the display device can be realized based on the turned-on communication module. At this time, the display device switches from the first state to the second state. In the second state, the display device still does not have a display output, so that data transmission between the external device and the display device can be realized without turning on the display, that is, when the display is in a non-working state, greatly improving the operability of data transmission to the display device.

[0117] Based on the above embodiment, in another embodiment of the present application, exemplarily, the display device is a display, the electronic device is a PC, the first processing module is a Scalar, and the communication module is a USB Hub in the display; as Figure 4As shown, when the display is in the low-power state, the USB Hub of the display is powered off, making the USB Hub function unable to be used properly. At this time, external devices cannot transmit data or commands to the display through the USB Hub function. For example, operations such as inserting a USB flash drive into the display for firmware upgrade or adjusting the display cannot be completed; the PC sends a DDC / CI signal (the first signal) to the Scalar through the DDC / CI channel, and after receiving this signal, the Scalar can send a power supply signal to the power supply module through the Inter-Integrated Circuit (I2C) protocol to power the USB Hub and complete the enabling of the USB Hub. Thus, without turning on the display, external devices can communicate with the display through the USB Hub, and at the same time, the PC can also communicate with the display through the USB Hub; that is to say, the embodiments of the present application can send a signal for triggering the enabling of the USB Hub to the display through a low-rate communication channel without turning on the display to turn on the USB Hub to achieve efficient data transmission between the external device and the display.

[0118] Exemplarily, for multiple displays in an enterprise, after all the displays are turned off, the host device corresponding to the enterprise administrator can send DDC / CI signals to each display to enable the USB Hub of each display without turning it on, so as to perform firmware upgrade on each display; after the firmware upgrade is completed, the host device corresponding to the enterprise administrator can also send a signal to turn off the USB Hub of each display to achieve the purpose of energy conservation and environmental protection.

[0119] Exemplarily, a laptop has only one HDMI and USB interface. When it is necessary to connect an external mouse, a keyboard, and a USB flash drive, there will be a problem of insufficient interfaces. At this time, it can be relayed through the display, but turning on the display will increase power consumption. At this time, the laptop can actively send a command to the Scalar of the display through the DDC / CI path in the HDMI to turn on the USB Hub. At this time, the laptop can use peripherals such as a mouse, a keyboard, and a USB flash drive connected to the display without turning on the display, and then send a command to turn off the USB Hub after use.

[0120] That is to say, the embodiments of the present application can balance energy efficiency and the need for high-speed display firmware upgrade, and can meet some remote control scenarios. For example, the display in the low-power mode can still perform efficient data transmission or firmware upgrade on the display through the method in the embodiments of the present application, effectively solving some problems of usage function limitations caused by low power consumption and improving the applicability of the display device.

[0121] Exemplarily, the display has three states, including a first state, a second state, and a third state. In the first state, the display shows no content and cuts off all the paths of the USB Hub, without communication function. At this time, plugging in an external device, such as a USB flash drive, on the display cannot perform data transmission with the display. When the display switches from the first state to the second state, the display still shows no content, but the USB Hub function of the display is turned on. At this time, plugging in a USB flash drive on the display can perform data transmission with the display, and in the second state, the display can also supply power to the connected electronic device, such as a laptop computer. When the display is in the third state, not only the USB Hub function is turned on, but also image display can be performed. The power consumption of the display in the third state is greater than that in the second state, which is greater than that in the first state.

[0122] In summary, the display device in the embodiment of the present application can, in a non-working state, that is, when the display function is not turned on, receive the first signal sent by the electronic device through the first communication channel, and in response to the first signal, send a power supply signal to the power supply module, so that the power supply module supplies power to the communication module to separately turn on the communication module, and then data transmission between the external device and the display device can be realized based on the turned-on communication module. At this time, the display device switches from the first state to the second state. In the second state, the display device still has no display output, so that data transmission between the external device and the display device can be realized without turning on the display, that is, when the display is in a non-working state, greatly improving the operability of data transmission to the display device.

[0123] Specifically, the program instructions corresponding to a communication method in this embodiment can be stored on storage media such as optical discs, hard disks, and USB flash drives. When the program instructions corresponding to a communication method in the storage media are read or executed by the processor, the following steps are included:

[0124] The first processing module, when the display device is in the first state, in response to obtaining the first signal sent by the display device connected to the display device through the first communication channel, sends a power supply signal to the power supply module;

[0125] The power supply module supplies power to the communication module in response to the power supply signal, and the communication module is in a working state, so that the display device is in the second state; the communication module is used to support data transmission between the external device and the display device;

[0126] Among them, when the display device is in the second state, the communication module is in the working state, and the display device is not used to display the image signal output by the display device; when the display device is in the first state, the communication module is in the non-working state, and the display device is not used to display the image signal output by the display device, and the power consumption of the display device in the second state is greater than that in the first state.

[0127] In addition, each functional module in this embodiment may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit. The above integrated unit may be implemented in the form of hardware or in the form of a software function module.

[0128] If the integrated unit is implemented in the form of a software function module and is not sold or used as an independent product, it may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this embodiment, in essence, or the part that contributes to the prior art, or all or part of this technical solution, may be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method of this embodiment. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks, or optical discs that can store program codes.

[0129] Those skilled in the art should understand that the embodiments of the present application may be provided as a method, a system, or a computer program product. Therefore, the present application may adopt the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program codes.

[0130] This application is described with reference to the schematic flow diagrams and / or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the schematic flow diagrams and / or block diagrams, as well as the combinations of flows and / or blocks in the schematic flow diagrams and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to the processors of general-purpose computers, special-purpose computers, embedded processors, or other programmable data processing devices to generate a machine, such that the instructions executed by the processors of the computer or other programmable data processing devices generate means for implementing the functions specified in one or more of the flows and / or blocks in the schematic flow Figure 1 one or more of the flows Figure 1 or the functions specified in one or more of the blocks.

[0131] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including instruction means that implement the functions specified in one or more of the flows and / or blocks in the schematic flow Figure 1 one or more of the flows Figure 1 or the functions specified in one or more of the blocks.

[0132] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more of the flows and / or blocks in the schematic flow Figure 1 one or more of the flows Figure 1 or the functions specified in one or more of the blocks.

[0133] The above embodiments are only preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are within the protection scope of the present invention.

Claims

1. A display device, comprising: A first processing module, configured to, when the display device is in a first state, in response to obtaining a first signal sent by an electronic device connected to the display device through a first communication channel, send a power supply signal to a power supply module; The power supply module is configured to, in response to the power supply signal, supply power to a communication module, and the communication module is in a working state, so that the display device is in a second state, and the communication module is used to support data transmission between an external device and the display device; Wherein, when the display device is in the second state, the communication module is in a working state, and the display device is not used to display an image signal output by the electronic device; When the display device is in the first state, the communication module is in a non-working state, and the display device is not used to display an image signal output by the electronic device; The power consumption of the display device in the second state is greater than that in the first state.

2. The display device according to claim 1, The first processing module is further configured to, when the display device is in a third state, obtain a second signal sent by the electronic device based on the first communication channel, and handshake with the electronic device based on the second signal, so that the display device can obtain an image signal output by the electronic device or adjust image output parameters of an image output by the display device based on the second signal; and obtain the image signal output by the electronic device through a second communication channel, and control an image output module to output an image corresponding to the image signal based on the image signal; Among them, When the display device is in the third state, the communication module is in a working state, and the power consumption of the display device in the third state is greater than that in the second state.

3. The display device according to claim 2, wherein the connection between the display device and the electronic device includes that the first processing module is connected to the electronic device through a first communication interface, The first processing module is further configured to, when the electronic device does not output an image signal through the first communication interface, receive the first signal through the first communication channel of the first communication interface; and when the electronic device outputs an image signal through the first communication interface, receive the image signal through the second communication channel of the first communication interface; Among them, The first communication channel and the second communication channel are different communication channels established based on a communication interface to establish a communication connection.

4. The display device according to claim 1, wherein the connection between the display device and the electronic device includes that the first processing module is connected to the electronic device through a second communication interface, and the second communication interface includes the first communication interface for receiving the first signal and the second communication interface for receiving the image signal; The first communication channel is further configured to support the display device and the electronic device to communicate power supply parameters, so that the display device can supply power to the electronic device based on the power supply parameters; The data transmission rate of the first communication channel is lower than that of the second communication channel.

5. The display device according to any one of claims 1 to 4, further comprising: A second processing module, configured to, when the display device is in the second state, obtain first firmware data stored in the external device that is in communication connection with the communication module, and use the first firmware data to replace the current firmware data of the display device.

6. The display device according to claim 5, The second processing module is further configured to generate a firmware upgrade failure prompt message when the replacement of the current firmware data cannot be completed; and When the electronic device reconnected to the display device is the same as the electronic device that issues the firmware replacement instruction, cause the display device to output the firmware upgrade failure prompt message.

7. The display device according to any one of claims 1 to 4, The first processing module is further configured to, when the display device is in the second state, receive an input signal from the external device through the communication module and send the input signal to the electronic device.

8. A communication method for a display device, the method comprising: When the display device is in the first state, in response to obtaining a first signal sent by an electronic device connected to the display device through a first communication channel, the first processing module sends a power supply signal to the power supply module; The power supply module supplies power to the communication module in response to the power supply signal, and the communication module is in a working state, so that the display device is in the second state, and the communication module is used to support data transmission between the external device and the display device; Wherein, when the display device is in the second state, the communication module is in a working state, and the display device is not used to display the image signal output by the electronic device; when the display device is in the first state, the communication module is in a non-working state, and the display device is not used to display the image signal output by the electronic device; the power consumption of the display device in the second state is greater than that in the first state.

9. The communication method according to claim 8, the method further comprising: Obtaining first firmware data through the communication module; Generating a firmware upgrade success prompt message when the replacement of the current firmware data with the first firmware data is completed; Generating a firmware upgrade failure prompt message when the first firmware data cannot replace the current firmware data.

10. The communication method according to claim 9, the method further comprising: Obtaining first identification information of the device that issues the firmware replacement instruction, Obtaining second identification information of the electronic device reconnected to the display device; Outputting the firmware upgrade failure prompt message when the first identification information and the second identification information are the same.

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