Display device and electronic device

Abstract

The invention discloses a display device and an electronic device, and the display device comprises a display unit which is used for outputting image information; the first communication channel is connected with the electronic equipment and is used for acquiring an image signal output by the electronic equipment; the second communication channel is used for obtaining the first input signal, the second communication channel and the first communication channel are communication channels with different interfaces, or the second communication channel and the first communication channel are different communication channels with the same interface; the first processing unit can control the display unit to work to output image information corresponding to an image signal based on the image signal obtained through the first communication channel; wherein if the display device is in the first working mode and obtains the first input signal, the first processing unit can also respond to the first input signal and control the display device to be switched from the first working mode to the second working mode, and the power consumption of the display device in the first working mode is smaller than that of the display device in the second working mode.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of electronic technology, and are related to but not limited to display devices and electronic devices. Background Art

[0002] When display devices switch modes, they often fail to receive the switching signal in a timely manner, resulting in synchronization delays between the host and the display device. This can lead to image frame loss, refresh rate mismatch, screen tearing, display anomalies, and cursor movement lag, creating a technical problem that urgently needs to be addressed. Summary of the Invention

[0003] In view of this, embodiments of the present application provide a display device and an electronic device.

[0004] The technical solution of the embodiment of the present application is implemented as follows:

[0005] In a first aspect, an embodiment of the present application provides a display device, including:

[0006] A display unit, configured to output image information;

[0007] A first communication channel is connected to the electronic device and is used to obtain an image signal output by the electronic device;

[0008] a second communication channel, used to obtain the first input signal, the second communication channel and the first communication channel being communication channels of different interfaces, or the second communication channel and the first communication channel being different communication channels of the same interface;

[0009] a first processing unit capable of controlling the display unit to output image information corresponding to the image signal based on the image signal obtained through the first communication channel;

[0010] Among them, if the display device is in the first operating mode and obtains a first input signal, the first processing unit can also control the display device to switch from the first operating mode to the second operating mode in response to the first input signal, and the power consumption of the display device in the first operating mode is less than the power consumption in the second operating mode.

[0011] In a second aspect, an embodiment of the present application provides an electronic device, including:

[0012] A first communication channel is connected to the display device and is used to output an image signal to the display device;

[0013] a second communication channel, for sending a second input signal to a display device;

[0014] The second processing unit is capable of outputting the acquired second input signal to the display device through the second communication channel when determining that the display device is in the first operating mode; and not outputting the second input signal to the display device when determining that the display device is in the second operating mode;

[0015] The second input signal is a signal input from an external device of the electronic device;

[0016] The power consumption of the display device in the first operating mode is less than the power consumption in the second operating mode.

[0017] In a third aspect, an embodiment of the present application provides an electronic device, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and the processor implements the above method when executing the program.

[0018] In a fourth aspect, an embodiment of the present application provides a storage medium storing executable instructions for implementing the above method when executed by a processor.

[0019] In a fifth aspect, an embodiment of the present application provides a computer program product, including a computer program or instructions, which implements the steps in the above method when executed by a processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A A schematic diagram of a connection between a display device and an electronic device provided in an embodiment of the present application;

[0021] Figure 1B A schematic diagram of a connection between a display device and an electronic device provided in an embodiment of the present application;

[0022] Figure 1C A schematic structural diagram of a display device provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0024] Figure 3A A schematic diagram of a process for switching from a normal mode to a picture replay mode provided in an embodiment of the present application;

[0025] Figure 3B A schematic diagram of a process for switching from a picture replay mode to a normal mode provided in an embodiment of the present application;

[0026] Figure 4A A schematic structural diagram of a first processing unit provided in an embodiment of the present application;

[0027] Figure 4B A schematic diagram of a process flow for switching the first processing unit to the PR mode provided in an embodiment of the present application;

[0028] Figure 5A A schematic diagram of the structure of a display device provided in an embodiment of the present application;

[0029] Figure 5B A schematic diagram of the structure of a host device provided in an embodiment of the present application;

[0030] Figure 6 A schematic diagram of a hardware entity of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the specific technical solutions of the embodiments of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application but are not intended to limit the scope of the present application.

[0032] In the following description, reference is made to “some embodiments”, which describes a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0033] In the following description, the terms "first\second\third" involved are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first\second\third" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein are for the purpose of describing the embodiments of this application only and are not intended to limit this application.

[0035] In modern display systems, in order to improve energy efficiency and reduce power consumption, the industry is constantly exploring technical means to reduce image frame transmission when the content remains unchanged. Among related technologies, Panel Replay is a new technology in the DisplayPort (DP) industry specification. As an energy-saving mechanism under industrial standards, it reduces the frequency of the Graphics Processing Unit (GPU) sending repeated frames to the display during static images, or even suspends the sending of frame data, thereby reducing power consumption on the host and display device sides. Under this mechanism, the display device relies on the last cached frame for display, without the need to continuously receive and process new image signals, thus achieving power saving effects.

[0036] When the display device switches back to normal mode from Panel Replay mode, poor communication and time lag between the display device and the host (electronic device) cause synchronization delays between the host and display device. This results in image anomalies, refresh rate mismatches, and cursor lag. Addressing these issues when the system switches from Panel Replay mode to normal mode has become a pressing technical challenge.

[0037] To address the above issues, the present application provides a display device and a method for switching its operating mode. By introducing a multi-channel communication mechanism and preprocessing strategy, the display device's receiving capability can be restored in advance after detecting an external input signal or a wake-up event, and the refresh rate and drive voltage can be adjusted to achieve smooth switching from low-power mode to high-power mode, avoiding problems such as screen tearing, frame skipping, and cursor delay, significantly improving the display effect and overall system performance.

[0038] Figure 1A A schematic diagram of a connection between a display device and an electronic device provided in an embodiment of the present application is shown in FIG. Figure 1A As shown, the schematic diagram includes a display device 10, an electronic device 20, and a mouse 30 and a keyboard 40 connected to the display device.

[0039] Figure 1B A schematic diagram of a connection between a display device and an electronic device provided in an embodiment of the present application is shown in FIG. Figure 1B As shown, the schematic diagram includes a display device 10 and an electronic device 20, wherein:

[0040] The display device 10 includes a first processing unit (Scaler) 101 , a display unit (Display Panel) 102 , a power delivery (PD) unit 103 , and a USB hub (HUB) 104 .

[0041] The electronic device 20 includes a second processing unit 201 , an embedded controller (EC) 202 , a power delivery (PD) unit 203 , and a USB host (HOST) 204 .

[0042] The display device 10 can be connected to the electronic device through C1, C8, and C2 channels, wherein:

[0043] C1: The main link channel (DP main link) and the auxiliary channel (Aux Channel). DP mainlink is used to transmit video and audio data and is the core transmission channel of the DP interface. The Auxiliary Channel is an independent bidirectional half-duplex transmission channel used for link management and device control. It is used to transmit the display's extended display identification data (EDID) information, store display parameters (such as resolution and refresh rate), and transmit DP interface configuration data (DPCD) for link-level configuration (such as the number of channels and data transmission rate). Negotiate connection parameters (such as resolution and refresh rate) to ensure the stability and efficiency of data transmission.

[0044] C8: Type-C configuration channel, which is the core channel for communication and power transmission negotiation between devices.

[0045] C2: USB channel. When the number of USB ports on electronic devices is insufficient or the location is inconvenient, the USB channel on the display device can be used as an expansion dock to provide additional USB ports. Figure 1A As shown, users can conveniently connect a keyboard 40 and mouse 30 to the display device 20, as well as devices such as USB flash drives and external hard drives. The display device's USB channel can also be used for firmware updates. Users can simply insert a USB flash drive containing the latest firmware for the display into the display's USB port and install the new firmware with a simple click, fixing vulnerabilities and optimizing product performance. The electronic device 20 can also send updated firmware to the display device 10 via this USB channel.

[0046] The display device 10 is also provided with a channel C5 connected to the USB HUB 104 for connecting a keyboard, mouse, USB flash drive, mobile hard drive, and other devices to the display device 20. At the same time, multiple channels such as C6 and C7 can also be provided on the display device 10 to connect external sensors, such as a human presence detection sensor (HPD sensor) and an artificial intelligence detection sensor (AI detecting sensor).

[0047] The first processing unit 101 in the display device 10 can obtain the USB data sent by the USB hub 104 through the C4 channel.

[0048] The display unit 102 in the display device 10 can obtain the display data sent by the first processing unit 101 through the C3 channel.

[0049] The first processing unit 101 in the display device 10 can transmit the wake-up event triggered by the external device obtained from the electronic device 20 to the power transmission unit 103 through the C10 channel.

[0050] The electronic device 20 is provided with a channel C9, which is connected to the USB HOST 204 and the DC 202, and can be used to connect external devices such as a keyboard, a mouse, a touchpad, etc.

[0051] The present application provides a display device, such as Figure 1C As shown, the display device includes: a display unit 102, a first communication channel 11, a second communication channel 12, and a first processing unit 102, wherein:

[0052] Display unit 102, used to output image information;

[0053] Here, the display unit 102 is connected to the first processing unit 101 , and can obtain the image signal sent by the first processing unit 101 and output image information based on the image signal.

[0054] The first communication channel 11 is connected to the electronic device and is used to obtain the image signal output by the electronic device;

[0055] Here, the first communication channel can be as follows Figure 1B The C1 channel shown, also known as the DP Main Link, is a first communication channel used to transmit video data from the electronic device 20. For example, if the electronic device is a personal computer (PC), the GPU can send digital video signals to the display device via the DP Main Link. This first communication channel supports high-speed data transmission, ensuring the stability and real-time performance of the image signal.

[0056] a second communication channel 12, for obtaining a first input signal, wherein the second communication channel and the first communication channel are communication channels of different interfaces, or the second communication channel and the first communication channel are different communication channels of the same interface;

[0057] Here, the second communication channel can receive external input signals, such as input events generated by devices such as keyboard, mouse, touchpad, etc. The second communication channel can be Figure 1B The C2 channel shown is a USB channel, but can also be a Type-C configuration channel or other dedicated channel. For example, when a user clicks a mouse or presses a keyboard key, the first input signal will be transmitted to the first processing unit of the display device via the second communication channel.

[0058] In some embodiments, the second communication channel and the first communication channel are communication channels of different interfaces. Figure 1B As shown, the first communication channel is the C1 channel, and the second communication channel is the C5 channel, wherein the C5 channel is used to obtain a first input signal triggered by an external keyboard / mouse of the display device.

[0059] In some embodiments, the first communication channel and the second communication channel may be integrated with the same physical interface connecting the display device and the electronic device. Figure 1B As shown in the figure, the first communication channel is the C1 channel, and the second communication channel is the C2 channel. The signal transmission of the DP interface transmitted on the C1 channel is based on its exclusive physical layer design. The signal format, encoding rules and timing control of the Main Link and AUX channels are all defined by the DP protocol. The USB4 protocol supports the encapsulation transmission of protocols such as DP and PCIe by introducing tunneling technology. In the USB4 interface, the DP signal can be encapsulated into a USB4 data packet for transmission, but the signal transmission still follows the DP protocol specification. USB4 provides physical layer channel and link management functions, that is, the same physical interface realizes the integration of the C1 channel and the C2 channel.

[0060] The first communication channel and the second communication channel may be different logical channels of the same physical interface, or may be completely different interfaces, thereby achieving flexible communication configuration.

[0061] a first processing unit 14 capable of controlling the display unit to output image information corresponding to the image signal based on the image signal obtained through the first communication channel;

[0062] Among them, if the display device is in the first operating mode and obtains the first input signal, the first processing unit can also control the display device to switch from the first operating mode to the second operating mode in response to the first input signal, and the power consumption of the display device in the first operating mode is less than the power consumption in the second operating mode.

[0063] During implementation, after receiving the image signal, the first processing unit 101 of the display device parses and processes the image signal, converts it into a format suitable for the display unit 102, and controls the display unit 102 to output the image according to the content of the image signal. This process usually involves operations such as image scaling, color correction, and frame rate adjustment to ensure that the image quality of the display unit meets user requirements. Among them, the first processing unit 101 can be a scaler set in the display device, which is used to receive the image signal (which may be in analog or digital format) from the electronic device (such as a graphics card, video processor), and obtain the original image data through analog-to-digital conversion (A / D conversion) or Transition Minimized Differential Signaling (TMDS) decoding (digital signal).

[0064] Here, the first working mode is the Panel Replay mode. The characteristic of the first working mode is that when the screen content remains unchanged, the display device only repeats the last frame of the image without receiving a new frame from the host side (electronic device). The first working mode can significantly reduce the power consumption of the GPU and display signal path. For example, when the user opens a document and does not perform any operation for a long time, the display device can switch to the first working mode to save power.

[0065] The second operating mode corresponds to the normal mode, which is the normal operating mode of the display device. In this mode, the display device continuously receives and updates new picture frames from the host to enable the display of dynamic content. In the second operating mode, the display device continuously receives and updates new picture frames from the host to enable the display of dynamic content. Due to the need to frequently receive and process new frames, the power consumption of the second operating mode is relatively high. For example, when watching videos or playing games, the display device must constantly refresh the picture to ensure a smooth visual experience.

[0066] The first input signal refers to a signal that can trigger the display device to exit the Panel Replay mode. The first input signal can be a user operation (such as keyboard keys, mouse movement), sensor detection (such as human presence detection), peripheral wake-up event (such as USB flash drive insertion), etc. The first input signal is transmitted through the second communication channel (such as Figure 1B C2 or C5) is transmitted to the display device, and the first processing unit judges and processes the first input signal.

[0067] During implementation, when the display device detects the first input signal, the first processing unit immediately initiates a pre-processing strategy to restore the display device's reception capabilities and adjust the refresh rate and drive voltage in advance to ensure image display continuity and stability during mode switching. For example, when a user presses any key on the keyboard, the display device immediately responds to the first input signal and begins preparing to exit the first operating mode, avoiding issues such as screen tearing or cursor lag.

[0068] In an embodiment of the present application, by introducing a multi-channel communication mechanism and a preprocessing strategy, when the display device is in PanelReplay mode and detects an external input signal or a wake-up event, the preprocessing strategy is immediately started to control the display device to switch to the normal operating mode, so that the receiving capability can be restored in advance, thereby achieving a smooth switch from low power consumption mode to high power consumption mode. The display device avoids problems such as picture abnormalities, frame skipping, and cursor delays, and the display device significantly improves the display effect and the overall performance of the system.

[0069] In some embodiments, when the second communication channel and the first communication channel are communication channels with different interfaces, the display device further includes:

[0070] a third communication channel, used to connect to the electronic device to transmit data, and the third communication channel and the first communication channel are different communication channels of the same interface, or the third communication channel and the first communication channel are communication channels of different interfaces,

[0071] Wherein, if the display device is in the first working mode and obtains the first input signal, the first processing unit is further used to output the first input signal obtained through the second communication channel to the electronic device through the third communication channel.

[0072] Here, the third communication channel refers to an additional data transmission channel provided in the display device for exchanging data with the electronic device.

[0073] In some embodiments, the third communication channel can be a different logical channel (such as a USB 2.0 channel) located on the same physical interface as the first communication channel (such as the DP main link). For example, the DP main link and the USB channel are integrated into the USB interface. The physical pin design of the USB-C interface supports multi-protocol multiplexing. In DP Alt Mode, some USB pins are reassigned as DP main link channels for transmitting video signals; the AUX channel is implemented through sideband signals. 4K video signals are directly transmitted through the USB-C cable without the need for an additional DP cable.

[0074] In some embodiments, the third communication channel may also be an independent channel implemented through other physical interfaces, that is, a separate physical interface (DP interface) corresponding to the first communication channel and a physical interface (USB interface) corresponding to the third channel are provided.

[0075] The third communication channel can serve as an auxiliary channel for data transmission or signal processing in certain operating modes. For example, in the first operating mode, the display device can return part of the input signal to the host through the third communication channel (C2), thereby achieving more flexible system control and energy-saving optimization.

[0076] The first input signal obtained in the first operating mode refers to a user input event or other external input information obtained by the second communication channel (C5), such as keyboard or mouse operation. The first processing unit can process the first input signal and forward the first input signal to the electronic device through the third communication channel (C2), so that the electronic device can process the first input signal.

[0077] For example, if Figure 1BAs shown, in the Panel replay mode, the display device 10 obtains keyboard operation information through C5, and sends the keyboard operation information to the first processing unit 101 through C4. When switching to normal mode, the keyboard operation information is simultaneously sent to the electronic device 20 through the USB hub 104 and the C2 channel, so that the electronic device 20 can process the keyboard operation information.

[0078] In an embodiment of the present application, by setting a third communication channel and using the third communication channel to send a first input signal to the electronic device in the first working mode, the collaborative working efficiency between the display device and the electronic device is improved.

[0079] In some embodiments, when the display device is in the second operating mode, the first input signal is output to the electronic device through the third communication channel, and the first input signal is not output to the first processing unit.

[0080] Here, when the display device is in the second working mode, that is, the normal working mode, the first input signal is not output to the first processing unit, but is output to the electronic device through the third communication channel. Figure 1B When the display device 10 is in normal working mode, the keyboard operation information obtained through the C5 channel is not sent to the first processing unit 101, but is sent to the electronic device 20 through the USB hub 104 and the C2 channel. In this way, when the display device is in normal working mode, the electronic device 20 can obtain keyboard operation information triggered by the external keyboard of the display device.

[0081] In the embodiment of the present application, when the display device is in the second operating mode, the first input signal is output to the electronic device via the third communication channel, and the first input signal is not transmitted to the first processing unit. This effectively reduces the ineffective activation of modules within the display device, thereby further reducing power consumption. This can extend the system's battery life or reduce overall energy consumption without affecting the user's interactive experience, thereby improving the energy efficiency of the display system.

[0082] In some embodiments, the first processing unit is used to switch from the second operating mode to the first operating mode in response to meeting the conditions for switching to the first operating mode, output the last frame of image, and store the target driving voltage value corresponding to the second refresh rate in the second operating mode, so as to control the display unit to output the image at the second refresh rate when switching to the second operating mode, wherein the target driving voltage value is used to adjust the response speed of the display unit.

[0083] Here, the target driving voltage value refers to the voltage parameter set at a specific refresh rate to ensure that the liquid crystal molecules in the display device can quickly respond to image changes. The refresh rate refers to the number of times the display updates the image per second, and the unit is Hz (Hertz). The higher the refresh rate, the smoother the picture. The target driving voltage value is usually preset or dynamically adjusted by the display device based on its own physical properties (such as liquid crystal material, panel type) and the current refresh rate. By adjusting the driving voltage, the flipping speed of the liquid crystal molecules can be accelerated, thereby reducing grayscale delay and screen ghosting. In PanelReplay mode, due to the low refresh rate, the first processing unit will use a lower driving voltage value to reduce power consumption; when switching back to the second working mode, the first processing unit needs to restore to the driving voltage value corresponding to the higher refresh rate to ensure picture smoothness and response speed.

[0084] The response speed of liquid crystal molecules refers to the time it takes for liquid crystal molecules in a display device to transition from one state (e.g., dark) to another (e.g., bright). The shorter the response time, the smoother the image transition and the better the visual experience. At different refresh rates, the driving voltage required for liquid crystal molecules under the same conditions varies. Therefore, the control system needs to select the appropriate driving voltage value based on the current refresh rate to achieve the optimal balance between display quality and energy efficiency.

[0085] During implementation, when the display device detects that it is operating in the second operating mode, the first processing unit records the target drive voltage value corresponding to the current second refresh rate. Subsequently, when the first operating mode switches to the second operating mode, the first processing unit uses the target drive voltage value to control the display unit to output images at a higher refresh rate, thereby avoiding problems such as screen tearing and lag caused by sudden changes in refresh rate. The above mechanism can maintain the continuity of display performance during mode switching, improving the user viewing experience.

[0086] In the second operating mode, the system stores the target drive voltage value; when switching from the first operating mode to the second operating mode, the system can immediately call upon this stored target drive voltage value to control the display unit. This technical approach effectively reduces the delay during mode switching, thereby stably maintaining image quality and significantly improving issues such as display anomalies and image response delays, thereby enhancing the overall performance of the display system and user experience.

[0087] During implementation, when switching to the first operating mode, the first processing unit determines whether the switching conditions are met and executes the operation of outputting the last frame of the image. Simultaneously, in preparation for subsequently switching back to the second operating mode, the first processing unit stores the target drive voltage value corresponding to the second refresh rate in the second operating mode. After switching back to the second operating mode, the first processing unit immediately calls the target drive voltage value previously stored by the first processing unit to ensure that the display unit can quickly adapt to the new refresh rate setting, thereby maintaining the stability of display performance.

[0088] In the embodiment of the present application, by setting a reasonable target driving voltage value in the second working mode and having the system effectively store and call it before and after the mode switch, a smooth switching of the working mode can be achieved without interrupting the display content, thereby improving the overall responsiveness of the display device and the user experience.

[0089] In some embodiments, controlling the display unit to output an image at the second refresh rate includes:

[0090] The first processing unit is further configured to obtain a target driving voltage value corresponding to the second refresh rate;

[0091] The display unit is configured to output an image at the second refresh rate based on the target driving voltage value.

[0092] Here, the target driving voltage value refers to the voltage parameter that matches a specific refresh rate (second refresh rate), which is used to ensure that the display unit can operate stably and efficiently at the target refresh rate. At different refresh rates, the display panel has different requirements for pixel driving. Too high a voltage may lead to increased power consumption or picture distortion, while too low a voltage may cause slow response or screen drag. Therefore, the system will pre-store or calculate the corresponding optimal driving voltage value based on the currently required refresh rate, so that it can be quickly called and applied to the display unit when switching to the target refresh rate.

[0093] After obtaining a driving voltage value that matches the target refresh rate, the first processing unit (e.g., a scaler) applies the target driving voltage value to the display unit's driver circuit, thereby adjusting the display unit's refresh rate. By obtaining and configuring the target driving voltage value, the display device can switch its refresh rate directly based on internally stored voltage parameters without relying on external input signals. This approach improves switching efficiency and reduces the occurrence of image anomalies.

[0094] In the embodiment of the present application, the system can achieve a smoother refresh rate switching process by obtaining a target drive voltage value corresponding to the second refresh rate and adjusting the operating state of the display unit according to the target drive voltage value. The system can avoid screen tearing or delay problems caused by voltage mismatch, thereby improving display quality and optimizing the user experience.

[0095] In some embodiments, the first processing unit is further configured to obtain a driving voltage value corresponding to the second operating mode when the display device is in the second operating mode;

[0096] determining a driving voltage value corresponding to the second operating mode as the target driving voltage value;

[0097] The target driving voltage value is stored.

[0098] After the display device enters the second operating mode (i.e., the normal operating mode), the first processing unit obtains a driving voltage value associated with the second operating mode. The driving voltage value mentioned above refers to a voltage parameter to ensure the normal operation of the display panel at a specific refresh rate. For example, at a high refresh rate, the display panel requires a higher driving voltage to maintain a smooth image.

[0099] The first processing unit sets the drive voltage value obtained in the previous step as the target drive voltage value for subsequent display control and power management. Setting the target drive voltage value helps maintain consistent display quality and reduce unnecessary energy consumption fluctuations when quickly switching between different operating modes. This enables dynamic configuration of the power regulation module within the display device, ensuring that the power regulation module within the display device operates at the optimal voltage when switching to the second operating mode, thereby improving the system's energy efficiency.

[0100] The first processing unit stores the target drive voltage value in a non-volatile memory so that it can be directly called up the next time the second operating mode is entered without recalculation or detection. This pre-storage mechanism can speed up mode switching and reduce processor burden.

[0101] The stored target drive voltage value is typically associated with parameters such as the refresh rate and resolution in the second operating mode, allowing for quick retrieval and application. Furthermore, the storage operation can provide a reference for subsequent mode recovery, thereby improving system response efficiency and stability.

[0102] In an embodiment of the present application, by obtaining and storing the corresponding driving voltage value when the display device is in the second operating mode, fine-grained control can be achieved when the display device switches to the second operating mode, so that the target driving voltage value set by the display device in the second operating mode can match the second refresh rate, avoiding screen tearing or delay problems caused by voltage mismatch.

[0103] In some embodiments, the display device further includes a storage unit,

[0104] In the case where the storage unit is divided into a first storage subunit and a second storage subunit, the first storage subunit is used to store the last frame of image, and the second storage subunit is in an empty state in the first working mode;

[0105] When the storage unit is used as a whole, the last frame of image is stored in the first working mode, and the last frame of image is cleared in the second working mode.

[0106] Here, the storage unit in a display device refers to a hardware module used to temporarily cache image data. In Panel Replay mode, the storage unit saves the last frame of a static image so that the display can reuse it without receiving new frames from the host. The storage unit is typically located within the display device's first processing unit (such as the scaler) and works in conjunction with the display unit.

[0107] During factory configuration of the storage unit, if the storage capacity of the storage unit is determined to be greater than or equal to a preset capacity threshold, the storage unit can be further divided into two sub-units: a first storage sub-unit and a second storage sub-unit. The first storage sub-unit is specifically used to store the last frame of the image. Its function is to ensure that after entering Panel Replay mode, the display can continuously output the last frame of the image without relying on the GPU to transmit new frames. The second storage sub-unit remains cleared in the first operating mode (i.e., Panel Replay mode). Keeping the second storage sub-unit cleared avoids resource waste and improves system responsiveness. For example, if the display device's cache is large enough, the storage area can be divided into held data and live data. Held data is used to store the last frame of image data before switching to PR mode, while live data is cleared in PR mode. By partitioning the storage unit, unnecessary memory usage can be reduced while ensuring continuous image display, thereby improving overall system efficiency.

[0108] When the storage unit is set up at the factory, if it is determined that the storage capacity of the storage unit is less than the preset capacity threshold, the storage unit will not be divided and will be used as a whole. In the first working mode, the storage unit is used to store the last frame of the image, and in the second working mode, the last frame of the image is cleared to make room for real-time data. For example, if the cache area of ​​the display device is not large enough, the stored data will not be partitioned and will be stored according to the first-in-first-out rule. This strategy is suitable for display devices with limited storage resources. By reasonably allocating storage resources under low capacity conditions, the basic requirements of the Panel Replay mode are met without causing performance degradation due to excessive storage occupation. In addition, the clearing operation helps to quickly free up storage space so that the system can adapt to dynamic content changes more quickly, thereby improving the user experience.

[0109] In the embodiments of the present application, by flexibly configuring the usage of the storage unit under different storage capacity conditions, the relationship between power consumption and display effect can be effectively balanced. By flexibly configuring the usage of the storage unit under different storage capacity conditions, not only the system operating efficiency is improved, but also the adaptability of the device in different application scenarios is enhanced.

[0110] In some embodiments, the first processing unit is further configured to obtain a driving voltage value with the highest voltage value, wherein the driving voltage value with the highest voltage value is a maximum driving voltage value that can be set for the display device;

[0111] The driving voltage value with the highest voltage value is stored as a target driving voltage value, so that when the display unit is switched to the second operating mode, the target driving voltage value is used to control the display unit to increase the refresh rate.

[0112] Here, the highest driving voltage value refers to the voltage value with the largest value among all available driving voltages. The highest driving voltage value is generally used to increase the response speed of liquid crystal molecules to achieve a faster image refresh effect. For example, in a display, when the refresh rate is increased, in order to maintain image quality and reduce smearing, it is generally necessary to use a higher driving voltage to speed up the flipping speed of liquid crystal molecules.

[0113] Liquid crystal molecule response speed is a key indicator of display performance. It refers to the time it takes for the liquid crystal material to switch from one grayscale to another. The faster the response speed, the better the display performs when playing dynamic content (such as games and videos). By applying a higher drive voltage, the response speed can be shortened, thereby improving image clarity and viewing experience.

[0114] By obtaining the highest driving voltage value through the display device and using the driving voltage value to control the response speed of the liquid crystal molecules, the display device can quickly improve the display performance when switching to the second working mode, thereby avoiding screen tearing or delay problems and improving the user's visual experience.

[0115] The target drive voltage value refers to the drive voltage value used when the system enters the second operating mode (i.e., normal display mode). The target drive voltage value is determined by the highest voltage value obtained and is pre-stored for recall when needed. For example, when the system switches from the low-power Panel Replay mode back to the high-refresh-rate normal display mode, the system loads and applies the target drive voltage value to ensure that the system-controlled display unit immediately operates in an optimal state.

[0116] When the system switches from Panel Repair mode to normal mode, if the drive voltage is not adjusted in time, the refresh rate may increase slowly, causing problems such as abnormal screen display or delayed cursor response. By storing the highest drive voltage value as the target drive voltage value in advance and directly calling the highest drive voltage value when the system switches to normal mode, the system can significantly shorten the response time and achieve a rapid increase in refresh rate. The system can then effectively solve user-visible problems such as screen tearing and cursor lag, ultimately improving the overall display quality and user experience.

[0117] In this embodiment of the present application, the system obtains the highest driving voltage value and stores it as the target driving voltage value when subsequently switching to the second operating mode. This allows the system to quickly respond to mode switching requests. This pre-storage mechanism enables the system to quickly load the optimal parameters when switching to the second operating mode, thereby avoiding image quality issues caused by parameter adjustment delays in traditional methods.

[0118] Figure 2 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application is shown in FIG. Figure 2 As shown, the electronic device includes:

[0119] A first communication channel 11 is connected to a display device and is used to output an image signal to the display device;

[0120] Here, the first communication channel can be as follows Figure 1BThe C1 channel shown, also known as the DP Main Link, is a first communication channel used to transmit video data to the electronic device 20. For example, if the electronic device is a personal computer (PC), the GPU can transmit digital video signals to the display device via the DP Main Link. This first communication channel supports high-speed data transmission, ensuring the stability and real-time performance of the image signal.

[0121] A second communication channel 12, for sending a second input signal to the display device;

[0122] Here, the second communication channel can receive external input signals, such as input events generated by devices such as keyboard, mouse, touchpad, etc. The second communication channel can be Figure 1B The C2 channel shown is a USB channel, but can also be a Type-C configuration channel or other dedicated channel. For example, when a user clicks a mouse or presses a keyboard key, the first input signal will be transmitted to the first processing unit of the display device via the second communication channel.

[0123] The second processing unit 201 is capable of outputting the acquired second input signal to the display device through the second communication channel if it is determined that the display device is in the first operating mode; and not outputting the second input signal to the display device if it is determined that the display device is in the second operating mode;

[0124] Wherein, the second input signal is a signal input from an external device of the electronic device;

[0125] The power consumption of the display device in the first operating mode is less than the power consumption in the second operating mode.

[0126] The second processing unit refers to a processing module located in the electronic device, which is used to manage the communication logic between the input device and the display device. When the display device is in the first working mode (i.e., the low-power Panel Replay mode), the second processing unit forwards the received external device input signal to the display device through the second communication channel to wake up the display device and enter normal mode. When the display device is in the second working mode (i.e., the high-refresh-rate Normal Mode), the second processing unit can process the output signal of the above external device and will not continue to forward such input signal to the display device using the second communication channel to avoid redundant operations and unnecessary power consumption.

[0127] The first operating mode is when the display device is in a low-power operating state, typically Panel Replay mode. In the first operating mode, the display device significantly reduces power consumption by caching the last frame of image data and reusing it, rather than frequently receiving and processing new frames. The second operating mode is when the display device is in a normal display state, typically Normal Mode. In this mode, the display device needs to continuously receive and process new frames, resulting in higher power consumption.

[0128] Switching between the two modes is determined by changes in the displayed content and user input events. For example, if the screen content remains unchanged for a long time, the display device enters the first operating mode; when user input or a change in the screen is detected, the display device switches back to the second operating mode.

[0129] The second input signal refers to a control signal generated by an external input device (such as a keyboard, mouse, touchpad, etc.). The second input signal contains the user's operation intention, such as the user performing a key press operation, a cursor movement operation, or a touch sliding operation. The second input signal is one of the important bases for the system to determine whether it needs to exit the Panel Replay mode. During implementation, the second input signal can be transmitted to the electronic device through a USB or Type-C interface and parsed and processed by the second processing unit. For example, when the user moves the mouse, the mouse generates a signal indicating a position change, which is transmitted to the display device as a second input signal to trigger the display device to switch from the first working mode to the second working mode.

[0130] During implementation, the second processing unit can dynamically adjust its communication behavior based on the current operating mode of the display device. For example, upon detecting that the display device has entered Normal Mode, the second processing unit will stop sending additional input signals to the display device, thereby reducing communication overhead and power consumption.

[0131] In the embodiments of this application, by introducing an intelligent control mechanism for a second communication channel and a second processing unit, rapid responses to user input are achieved while maintaining low power consumption. This mechanism effectively addresses existing issues such as screen tearing and cursor lag caused by untimely mode switching, thereby improving user experience and system stability. This mechanism also achieves a good balance between energy conservation and performance, meeting the dual requirements of display devices for high performance and low energy consumption.

[0132] In some embodiments, the second communication channel and the first communication channel are different communication channels of the same interface, or the second communication channel and the first communication channel are communication channels of different interfaces.

[0133] The second communication channel is a communication path within the display device that receives external input signals (such as a keyboard, mouse, or sensor). This channel can detect user actions or environmental changes, triggering the display device to switch from low-power mode to normal operating mode. This channel can be a USB channel, a Type-C configuration channel, or other expansion interface that allows the system to receive a wake-up signal when the primary communication link is in a power-saving state.

[0134] The primary communication channel is the primary communication path used by a display device to receive image signals, typically the DP main link and auxiliary channel. The primary communication channel is responsible for transmitting video data and control information and is the core channel for display content updates.

[0135] When the second communication channel and the first communication channel are different communication channels of the same interface, the system design indicates that the second communication channel and the first communication channel share the physical interface but operate logically independently. In a Type-C interface, the C1 channel can simultaneously carry DP Main Link (image data) and USB communication (input signals). The C1 channel design saves hardware resources and improves interface efficiency.

[0136] When the second communication channel and the first communication channel are communication channels with different interfaces, they use different physical interfaces. For example, the first communication channel transmits image data via the DisplayPort interface, while the second communication channel receives input signals via the USB interface. This design approach, where the second communication channel and the first communication channel use different interfaces, is suitable for multi-port devices and can improve system flexibility and compatibility.

[0137] During implementation, system designers flexibly configure the relationship between the second and first communication channels based on the device's specific application scenario. When device space is limited, system designers can use different communication channels within the same interface to save hardware costs. When scalability and compatibility are critical, system designers can choose communication channels with different interfaces to enhance system adaptability. Both design approaches, when the second and first communication channels are different communication channels within the same interface, and when the second and first communication channels are different interfaces, can improve system responsiveness and user experience without compromising image quality.

[0138] The structural arrangement of the second communication channel and the first communication channel in this embodiment achieves efficient response to external input signals while maintaining low power consumption. This structural arrangement also ensures stable transmission of image signals and improves the overall performance of the display device and the user interaction experience.

[0139] Figure 3A A schematic diagram of a process of switching from normal mode to picture replay mode is provided in an embodiment of the present application, such as Figure 3A As shown, this can be achieved by following the steps below:

[0140] A1: The graphics card (GPU) and monitor (Monitor) are connected for link training, and each is informed of the panel replay capabilities (resolution and refresh rate range, maximum resolution) to ensure normal display.

[0141] A2: The graphics card determines the current output content. If the content remains unchanged for a period of time, it determines that it is appropriate to enter panel replay mode and save power.

[0142] A3: The graphics card notifies the monitor (receives input data from the scaler in the monitor) that it is ready to enter Panel replay mode.

[0143] A4: The scaler tells the graphics card that it is ready to enter panel replay mode. The graphics card no longer sends new frames. The scaler takes frames from its internal cache and sends them to the display unit, reducing the refresh rate.

[0144] After the monitor receives the instruction to enter Panel replay, it performs the following steps:

[0145] A4-1a: The scaler stores the current refresh rate (high) and the drive voltage value (overdrive value) corresponding to the refresh rate (high).

[0146] A4-1b: The Scaler stores the latest static image frame in the "first buffer memory" for Panel replay transmission.

[0147] A4-2: The scaler tells the graphics card that it is ready to enter panel replay mode, and the graphics card no longer sends new frames.

[0148] A4-3: The scaler takes the picture frame from the first buffer memory and sends it to the display unit, and reduces the refresh rate of the display unit (to save power).

[0149] A4-4: The scaler sets the timing detection and generation module (TDG) not used in the panel replay mode to power saving and turns off the overdrive.

[0150] A5: The graphics card and monitor work in Panel replay mode, saving power for the entire system.

[0151] Figure 3B A schematic diagram of a process for switching from a picture replay mode to a normal mode is provided in an embodiment of the present application, such as Figure 3B As shown, this can be achieved by following the steps below:

[0152] B1: The graphics card and monitor work in Panel replay mode, and the entire system saves power.

[0153] B2: Determine whether the current content needs to be exited and replayed (screen change). The triggering condition can be automatic or user-initiated.

[0154] In implementation, the triggering condition includes at least one of the following:

[0155] B2-1: Graphics card determination. Display screen changes, including mouse cursor movement.

[0156] B2-2: The monitor detects whether the conditions for exiting Panel replay mode are met: Figure 1B The C4 / C6 / C7 / C10 channels are shown as transmitting predefined wake-up events to the scaler (first processing unit 101). The C4 / C6 / C7 channels can receive wake-up events triggered by external devices connected to the display device 10, while the C10 channel can receive wake-up events triggered by external devices connected to the electronic device 20.

[0157] B3: The graphics card notifies the display (which receives input data from the Scaler) that it is ready to exit Panel replay mode.

[0158] During implementation, this can be achieved through at least one of the following steps:

[0159] B3-1: If the conditions in B2-1 are met, the scaler notifies the graphics card that it is ready to exit panel replay mode and transmit a new frame. The scaler receives the new frame, transmits it to the display unit, raises the refresh rate (high), and calls the corresponding drive voltage value (overdrive value).

[0160] B3-2: If the conditions in B2-2 are met, perform the following steps:

[0161] 1. Scaler increases the refresh rate (high).

[0162] 2. Scaler turns on overdrive and calls the drive voltage value corresponding to the refresh rate (high).

[0163] 3. The scaler activates the power-saving module (Video Input Interface, TDG) to inform the graphics card that it is ready to exit Panel Replay Mode. The graphics card transmits a new frame. The scaler receives the new frame and transmits it to the display unit.

[0164] B4: The scaler tells the graphics card that it is ready to exit panel replay mode and sends a new frame. The scaler receives the new frame, sends it to the display unit, and increases the refresh rate.

[0165] B5: The graphics card and display device are working in normal mode.

[0166] Figure 4A A structural diagram of the first processing unit provided in an embodiment of the present application is shown in FIG. Figure 4A As shown, the first processing unit (Scaler) includes a video input interface module (Video Input Interface Block) 41, a power supply and power regulation management (Power & PR Management) module 42, a timing detection and generation (TDG) module 43, stored data (Held data) 44, real-time data (Live data) 45, a frame buffer and buffer controller (Frame buffer Controller) 46, a timing controller interface (Tcon Interface) 47, an overdrive (Overdrive) 48, and a scaler engine (Scaler Engine) 49, wherein,

[0167] Video Input Interface Block 41: Receives digital video streams from the DP, handles protocol decoding, performs link training, channel decoding, and packet parsing, and outputs video data for internal processing. PR Hod mode enables power saving.

[0168] Power & Power Regulation Management (Power & PR Management) module 42: Optimizes the energy efficiency of the display device while ensuring a balance between image processing performance and power states. Dynamically adjusts the supply voltage and frequency of internal modules when processing signals of varying resolutions or refresh rates. For example, when displaying static content (such as documents), the chip can reduce clock frequency to save power; while boosting performance to meet real-time processing demands when playing high-frame-rate videos or games.

[0169] Timing detection and generation module (TDG) 43: static frame detection, used for preparation for entering PR mode.

[0170] If the display device's buffer area is large enough, the storage area can be divided into Held data and Live data. Held data is used to store the last frame of image data before switching to PR mode, and Live data is cleared in PR mode. If the display device's buffer area is not large enough, the stored data is not partitioned and is stored according to the first-in, first-out principle.

[0171] Frame Buffer Controller 46: A hardware module that manages display memory (frame buffer) and controls the transfer of image data from memory to the display. It implements double buffering or hold buffering. In this implementation, it can store and playback static content.

[0172] Timing controller interface (Tcon Interface) 47: used to switch the panel input source between "real-time data" and "hold frame".

[0173] Overdrive (OD)48: Response time compensation is a display technology that pre-corrects the voltage applied to the pixel to speed up its switching speed, which helps improve the grayscale response time and reduce motion blur and ghosting.

[0174] The refresh rate corresponds to OD, but they may not match for a short period of time when returning from PR mode to normal mode.

[0175] The refresh rate has two conditions: fixed value and adaptive. When the pre-stored value or the highest voltage value is called, the OD function switches from off to on.

[0176] Scaler Engine 49: Used for image or video scaling (e.g., resolution adjustment, image stretching). In display devices, this algorithm optimizes image quality to avoid distortion caused by scaling.

[0177] like Figure 1A The C1 channel of the first processing unit 101 of the display device is connected to the electronic device 20, wherein,

[0178] The C1.1 channel is used to transmit the main link signal of the display channel (DP).

[0179] The C1.2 channel is used to transmit the auxiliary (Aux) signal of the display channel (DP).

[0180] Figure 4B A schematic diagram of a process flow of switching the first processing unit to the PR mode provided in an embodiment of the present application is shown as follows: Figure 4B As shown, this can be achieved by following the steps below:

[0181] Step S401: The pre-judgment logic unit obtains an external input event of the display device or a display channel event of the electronic device;

[0182] Here, the external input event of the display device includes at least one of the following: a keyboard input event, a mouse input event, and a sensor input event.

[0183] The display channel event of the electronic device includes at least one of the following: a keyboard input event, a mouse input event, and a touchpad input event.

[0184] In some embodiments, input events from external devices (keyboard, mouse, HumanPresentDetection, touchpad touch, sensor input, etc.) are detected on a display device side (display).

[0185] In some embodiments, an electronic device (host) transmits input events to a display via channels other than display channels (including MainLink and Aux channels), such as USB and Type-C configuration channels. Input devices connected to the host, such as keyboards, mice, joysticks, touchscreens, and Hall effect sensors, receive input and convert it into input events for the display.

[0186] Step S402: The pre-processing unit executes the following adjustment strategies based on the output of the pre-judgment logic unit: exit power saving, restore display signal reception and processing capabilities, adjust the screen refresh rate, and adjust the screen OD level.

[0187] Methods of pre-processing management include:

[0188] 1. Predict the exit of Panel replay mode and restore the receiving signal port and line on the display side from power saving state to normal state in advance, so as to prepare for communication and receiving new picture frames.

[0189] 2. Actively increase the refresh rate of the monitor output to the display from the low refresh rate in Panel replay mode to the high refresh rate in normal state.

[0190] 3. Predict the exit of panel replay mode and actively switch the OD level of the signal output by the scaler according to the change of refresh rate to achieve normal image display and solve the cursor lag problem.

[0191] In an embodiment of the present application, the display device processes external input events, and in combination with the communication and status management events regarding the Panel replay mode between the graphics card (display Source end) and the display device (Sink end) on the display channel, the display device performs pre-judgment and pre-processing of the Panel replay mode, thereby solving poor communication and time delays, and further solving the display abnormality problem caused by mode switching.

[0192] Based on the foregoing embodiments, an embodiment of the present application provides a display device, which includes modules, each module includes sub-modules, each sub-module includes a unit, and can be implemented by a processor in an electronic device; of course, it can also be implemented by a specific logic circuit; in the implementation process, the processor can be a central processing unit (CPU), a microprocessor (MPU), a digital signal processor (DSP) or a field programmable gate array (FPGA), etc.

[0193] Figure 5A A schematic diagram of the structure of the display device provided in the embodiment of the present application is shown in FIG. Figure 5A As shown, the apparatus 500 includes:

[0194] The first acquisition module 501 is capable of acquiring an image signal through a first communication channel; the first communication channel is connected to an electronic device and is used to acquire the image signal output by the electronic device;

[0195] A first processing module 502 is configured to control a display unit to output image information corresponding to the image signal;

[0196] In some embodiments, the first processing module 502 is further used to determine that the display device is in a first operating mode and obtain a first input signal through a second communication channel, and in response to the first input signal, control the display device to switch from the first operating mode to the second operating mode, and the power consumption of the display device in the first operating mode is less than the power consumption in the second operating mode; the second communication channel and the first communication channel are communication channels of different interfaces, or the second communication channel and the first communication channel are different communication channels of the same interface.

[0197] Figure 5B A schematic diagram of the structure of the host device provided in the embodiment of the present application is shown in FIG. Figure 5B As shown, the device 510 includes:

[0198] The second acquisition module 511 is configured to acquire a second input signal, wherein the second input signal is a signal input from an external device of the electronic device;

[0199] a second processing module 512 configured to, if it is determined that the display device is in the first operating mode, output the acquired second input signal to the display device through the second communication channel; and, if it is determined that the display device is in the second operating mode, not output the second input signal to the display device;

[0200] The power consumption of the display device in the first operating mode is less than the power consumption in the second operating mode.

[0201] The description of the above device embodiment is similar to the description of the above method embodiment and has similar beneficial effects as the method embodiment. For technical details not disclosed in the device embodiment of this application, please refer to the description of the method embodiment of this application for understanding.

[0202] It should be noted that, in the embodiment of the present application, if the above method is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the relevant technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable an electronic device (which can be a mobile phone, tablet computer, laptop computer, desktop computer, etc.) to execute all or part of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program code, such as a U disk, a mobile hard disk, a read-only memory (ROM), a magnetic disk or an optical disk. In this way, the embodiment of the present application is not limited to any specific combination of hardware and software.

[0203] Correspondingly, an embodiment of the present application provides a storage medium on which a computer program is stored. When the computer program is executed by a processor, it implements the processing steps of the display device on the first input signal or the processing steps of the electronic device on the second input signal provided in the above embodiments.

[0204] Correspondingly, an embodiment of the present application provides an electronic device, Figure 6 A hardware entity diagram of an electronic device provided in an embodiment of the present application, such as Figure 6 As shown, the hardware entity of the device 600 includes: a memory 601 and a processor 602, wherein the memory 601 stores a computer program that can be run on the processor 602, and when the processor 602 executes the program, it implements the processing steps of the display device for the first input signal or the processing steps of the electronic device for the second input signal provided in the above embodiment.

[0205] The memory 601 is configured to store instructions and applications executable by the processor 602, and can also cache data to be processed or processed by the processor 602 and various modules in the electronic device 600 (for example, image data, audio data, voice communication data and video communication data), which can be implemented through flash memory (FLASH) or random access memory (RAM).

[0206] It should be noted that the description of the above storage medium and device embodiments is similar to the description of the above method embodiments and has similar beneficial effects as the method embodiments. For technical details not disclosed in the storage medium and device embodiments of this application, please refer to the description of the method embodiments of this application for understanding.

[0207] It should be understood that "one embodiment" or "an embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. The above-mentioned serial numbers of the embodiments of the present application are for description only and do not represent the advantages and disadvantages of the embodiments.

[0208] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0209] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0210] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed across multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

[0211] In addition, all functional units in the embodiments of the present application can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the above-mentioned integrated units can be implemented in the form of hardware or in the form of hardware plus software functional units.

[0212] Those skilled in the art will understand that all or part of the steps of implementing the above-mentioned method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above-mentioned method embodiment; and the aforementioned storage medium includes: mobile storage devices, read-only memories (ROM), magnetic disks or optical disks, and other media that can store program codes.

[0213] Alternatively, if the above-mentioned integrated unit of the present application is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application can essentially or in other words be embodied in the form of a software product that contributes to the relevant technology. The computer software product is stored in a storage medium and includes several instructions for enabling an electronic device (which can be a mobile phone, tablet computer, laptop computer, desktop computer, etc.) to execute all or part of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROMs, magnetic disks, or optical disks.

[0214] The methods disclosed in the several method embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments.

[0215] The features disclosed in the several product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0216] The features disclosed in the several method or device embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments or device embodiments.

[0217] The above is merely an embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A display device, comprising: A display unit, configured to output image information; a first communication channel connected to the electronic device and used to obtain an image signal output by the electronic device; a second communication channel, used to obtain the first input signal, the second communication channel and the first communication channel being communication channels of different interfaces, or the second communication channel and the first communication channel being different communication channels of the same interface; a first processing unit capable of controlling the display unit to output image information corresponding to the image signal based on the image signal obtained through the first communication channel; Among them, if the display device is in the first operating mode and obtains the first input signal, the first processing unit can also control the display device to switch from the first operating mode to the second operating mode in response to the first input signal, and the power consumption of the display device in the first operating mode is less than the power consumption in the second operating mode.

2. The display device according to claim 1 , wherein the second communication channel and the first communication channel are communication channels with different interfaces, the display device further comprises: a third communication channel, used to connect to the electronic device to transmit data, and the third communication channel and the first communication channel are different communication channels of the same interface, or the third communication channel and the first communication channel are communication channels of different interfaces, Wherein, if the display device is in the first working mode and obtains the first input signal, the first processing unit is further used to output the first input signal obtained through the second communication channel to the electronic device through the third communication channel.

3. The display device as described in claim 2, wherein when the display device is in the second operating mode, the first input signal is output to the electronic device through the third communication channel, and the first input signal is not output to the first processing unit.

4. The display device according to claim 1, The first processing unit is configured to, in response to a condition for switching to the first operating mode being met, switch from the second operating mode to the first operating mode, output a last frame of image, and store a target driving voltage value corresponding to a second refresh rate in the second operating mode, so as to control the display unit to output an image at the second refresh rate when switching to the second operating mode, wherein: The target driving voltage value is used to adjust the response speed of the display unit.

5. The display device according to claim 4, wherein controlling the display unit to output images at the second refresh rate comprises: The first processing unit is further configured to obtain a target driving voltage value corresponding to the second refresh rate; The display unit is configured to output an image at the second refresh rate based on the target driving voltage value.

6. The display device according to claim 5, The first processing unit is further configured to obtain a driving voltage value corresponding to the second operating mode when the display device is in the second operating mode; determining a driving voltage value corresponding to the second operating mode as the target driving voltage value; The target driving voltage value is stored.

7. The display device according to claim 4, further comprising a storage unit, In the case where the storage unit is divided into a first storage subunit and a second storage subunit, the first storage subunit is used to store the last frame of image, and the second storage subunit is in an empty state in the first working mode; When the storage unit is used as a whole, the last frame of image is stored in the first working mode, and the last frame of image is cleared in the second working mode.

8. The display device according to claim 1, The first processing unit is further configured to obtain a driving voltage value with the highest voltage value, wherein: The driving voltage with the highest voltage value is the maximum driving voltage value that can be set for the display device; The driving voltage value with the highest voltage value is stored as a target driving voltage value, so that when the display unit is switched to the second operating mode, the target driving voltage value is used to control the display unit to increase the refresh rate.

9. An electronic device comprising: a first communication channel connected to a display device, and configured to output an image signal to the display device; a second communication channel, configured to send a second input signal to the display device; a second processing unit capable of outputting the acquired second input signal to the display device through the second communication channel if it is determined that the display device is in the first operating mode; and not outputting the second input signal to the display device if it is determined that the display device is in the second operating mode; Wherein, the second input signal is a signal input from an external device of the electronic device; The power consumption of the display device in the first operating mode is less than the power consumption in the second operating mode.

10. The electronic device according to claim 9, The second communication channel and the first communication channel are different communication channels of the same interface, or the second communication channel and the first communication channel are communication channels of different interfaces.

Images