CN114415818A - Power management method of display device, power management device and display device - Google Patents

Power management method of display device, power management device and display device Download PDF

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Publication number
CN114415818A
CN114415818A CN202111645736.0A CN202111645736A CN114415818A CN 114415818 A CN114415818 A CN 114415818A CN 202111645736 A CN202111645736 A CN 202111645736A CN 114415818 A CN114415818 A CN 114415818A
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China
Prior art keywords
display device
state
power
display
signal
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CN202111645736.0A
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Chinese (zh)
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姜小波
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Shenzhen Legendary Technology Co ltd
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Shenzhen Legendary Technology Co ltd
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Priority to CN202111645736.0A priority Critical patent/CN114415818A/en
Publication of CN114415818A publication Critical patent/CN114415818A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G06F1/3265—Power saving in display device
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/266—Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Power Sources (AREA)

Abstract

The power management method comprises the steps of detecting whether the display device enters a dormant state or not, generating a dormant detection signal if the display device enters the dormant state, sending a first power role switching signal to the external device according to the dormant detection signal so as to switch the state of the external device into a power supply state, wherein the display device is in a power receiving state at the moment, the display device does not supply power to the external device, the power consumption of the display device during the dormancy of the external device through the USB-C interface is reduced, and the energy efficiency of the display device is improved.

Description

Power management method of display device, power management device and display device
Technical Field
The present application relates to a power management method of a display device, and more particularly, to a power management method of a display device, a power management device and a display device.
Background
With the development of electronic technology, the USB-C interface has become a standard interface for smart devices such as mobile phones and computers. The peripherals of these smart devices are also subsequently equipped with a USB-C interface, such as a USB-C display device. Most display devices with USB-C interfaces can not only display the pictures of the mobile phone/computer through the USB-C interfaces, but also supply power to the mobile phone/computer at the same time. When the USB-C display device with a power supply (comprising a built-in battery and an external power adapter) supplies power to the connected mobile phone/computer and displays a picture, after the mobile phone/computer is not operated by a person for a period of time, the mobile phone/computer enters a sleep mode and stops picture output, and the USB-C display device enters the sleep mode and presents a black screen state without pictures. At this time, the USB-C display device still supplies power to the mobile phone/computer. In the prior art, the power consumption of the display device during sleep is increased by a mode of still charging the external equipment in the sleep mode of the USB-C display device, and the energy efficiency requirement cannot be met.
Disclosure of Invention
The application aims to provide a power management method and a power management device of a display device and the display device, and aims to solve the problems of high power consumption and low energy efficiency when the display device is in a dormant state.
In a first aspect, the present application provides a power management method for a display device, where the display device is connected to an external device through a USB-C interface, the power management method including:
detecting whether the display device enters a dormant state;
if the display device enters the dormant state, generating a dormant detection signal;
and sending a first power role switching signal to the external equipment according to the dormancy detection signal so as to switch the state of the external equipment into a power supply state.
In one embodiment, the detecting whether the display device enters a sleep state includes:
acquiring a display signal from the external equipment through the USB-C interface;
and if the display signal is not received, judging that the display device enters the dormant state.
In one embodiment, the power management method further comprises:
and if the display device enters the dormant state, controlling a power supply connecting line between the display device and the external equipment to be disconnected.
In one embodiment, the display apparatus outputs a first power role switching signal to an external device, the external device sets the external device as a power supply device after receiving the first power role switching signal, and sets the display apparatus as a powered device.
In one embodiment, the power management method further comprises:
if the display device enters a display state, generating a starting detection signal;
and sending a second power role switching signal to the external equipment according to the starting detection signal so as to switch the state of the external equipment into a power receiving state.
In one embodiment, the power management method further comprises:
and if the display device enters a display state, controlling the conduction of a power supply connecting line between the display device and the external equipment.
The present application provides in another aspect a power management apparatus of a display apparatus, the power management apparatus comprising:
a detection unit for detecting whether the display device enters a sleep state; if the display device enters the dormant state, generating a dormant detection signal;
and the switching unit is used for sending a first power role switching signal to the external equipment according to the dormancy detection signal so as to switch the state of the external equipment into a power supply state.
In one embodiment, the detection unit is further configured to generate a turn-on detection signal when the display device enters a display state;
the switching unit is further configured to send a second power role switching signal to the external device according to the start detection signal, so as to switch the state of the external device to a power receiving state.
In a second aspect, the present application provides a display device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of any one of the above methods when executing the computer program.
In one embodiment, the display apparatus further includes a display panel unit for displaying a display signal input from an external device to the display apparatus.
The display device is connected with the external equipment through the USB-C interface, the power management method comprises the steps of detecting whether the display device enters a dormant state or not, generating a dormant detection signal if the display device enters the dormant state, sending a first power role switching signal to the external equipment according to the dormant detection signal so as to switch the state of the external equipment into a power supply state, wherein the display device is in a power receiving state, the display device does not supply power to the external equipment, the power consumption of the display device during the dormancy of the external equipment through the USB-C interface is reduced, and the energy efficiency of the display device is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart illustrating a power management method for a display device according to an embodiment of the present disclosure;
fig. 2 is a block diagram illustrating a process of detecting whether a display device enters a sleep mode according to an embodiment of the present disclosure;
fig. 3 is a flowchart illustrating a power management method for a display device according to an embodiment of the present disclosure;
fig. 4 is a flowchart illustrating a power management method for a display device according to an embodiment of the present disclosure;
fig. 5 is a flowchart illustrating a power management method for a display device according to an embodiment of the present disclosure;
fig. 6 is a block diagram of a display device according to an embodiment of the present disclosure.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The display device equipment usually has a USB-C interface, the USB-C interface can be externally connected with external equipment such as a mobile phone or a tablet computer and transmits data in the external equipment to the display device, and when the equipment such as the mobile phone or the tablet computer is connected with the display device through the USB-C interface, the display device can supply power for the external equipment through the USB-C interface. The display device can enter a dormant state after a period of time in an unmanned operation state, the display device does not display pictures and presents a black screen state, but the display device still supplies power to the external equipment at the moment, so that the power consumption of the display device is increased, and in order to reduce the power consumption of the display device in the dormant state, a user needs to manually pull out a USB-C data line between the external equipment and the display device, so that the power consumption of the display device is reduced.
However, the method of manually removing the USB-C data line is inefficient, and a general user may forget to remove the data line, which increases power consumption of the display device during sleep and reduces energy efficiency of the display device.
In order to solve the above problem, an embodiment of the present application provides a sleep method for a display device, which is used to solve the problem of high power consumption when an external device of the display device is in sleep, where the display device is connected to the external device through a USB-C interface.
Fig. 1 shows a schematic implementation flow chart of a power management method of a display device according to an embodiment of the present application, where the method is suitable for supplying power to a display device when the display device is connected to an external device through a data line, and includes steps 100 to 300.
Step 100, detecting whether the display device enters a sleep state from a display state.
The display device comprises a USB-C interface, the external equipment can be connected with the display device through the USB-C interface, when the external equipment transmits a display signal to the display device, the display device is in a display state, the display device supplies power to the external equipment at the moment, and the display device outputs the display signal to the display device for displaying while the external equipment is charged. When the external equipment and the display device are not operated for the first threshold time, the external equipment does not output a display signal to the display device, the display device enters a dormant state at the moment, the display device is in a black screen state, and the detection unit in the display device does not detect the display signal output by the external equipment, so that the display device is judged to enter the dormant state.
In this embodiment, the display device is switched from the display state to the sleep state or from the sleep state to the display state, which is detected by the detection unit, so as to detect the state of the display device.
Step 200, if the display device enters a sleep state, a sleep detection signal is generated.
The display device is detected by the detection unit when entering the dormant state from the display state, and when the detection unit detects that the display device enters the dormant state from the display state, the detection unit generates a dormant detection signal when entering the dormant state according to the display device.
In this embodiment, the detection unit may detect a display state and a sleep state of the display apparatus and generate a sleep detection signal when the display apparatus is in the sleep state.
Step 300, sending a first power role switching signal to the external device according to the sleep detection signal, so as to switch the state of the external device into a power supply state.
The detection unit generates a dormancy detection signal and sends the dormancy detection signal to a switching unit in the display device, the switching unit sends a first power role switching signal to the external equipment through the USB-C interface, the external equipment switches the state of the external equipment into a power supply state after receiving the first power role switching signal, and the display device is controlled to be converted into a power receiving state.
In this embodiment, the switching unit generates the first power role switching signal when receiving the hibernation detection signal to control the external device to switch from the power receiving state to the power supplying state, and controls the display device to switch from the power supplying state to the power receiving state through the external device, and the display device does not supply power to the external device, so that the problem of high power consumption of the display device when the external device is in the hibernation state is reduced, and the energy efficiency of the display device is improved.
In one embodiment, referring to fig. 2, detecting whether the display device enters the sleep state includes steps 101 and 102:
and 101, acquiring a display signal from external equipment through a USB-C interface.
In this embodiment, referring to fig. 2, the external device outputs a display signal to the display device through the USB-C port, and the display signal reaches the display panel unit for displaying through the USB-C interface unit, the image inverting unit, and the display signal processing unit in the display device, where the display signal processing unit includes the detection unit.
Step 102, if the display signal is not received, determining that the display device enters a sleep state.
In this embodiment, the display signal needs to be processed by the signal processing unit and then output to the display panel unit for display, when the external device stops operating for a period of time, the external device stops outputting the display signal to the display device, at this time, no display signal passes through the signal processing unit, and the detection unit does not detect a sleep signal, and then it is determined that the display device enters a sleep state.
In this embodiment, the detection unit may determine whether the external device outputs the display signal to the display device, and when the detection unit does not receive the display signal, it determines that the display device is in a sleep state, so as to output a sleep detection signal to control the display device to stop supplying power to the external device, thereby reducing power consumption of the display device when the external device is in sleep.
In one embodiment, referring to fig. 3, the power management method further includes step 400:
step 400, if the display device enters the sleep state, controlling the power supply connection line between the display device and the external device to be disconnected.
In a specific embodiment, a power supply connection line is arranged between the external device and the display device, and the power supply connection line is controlled by the first switch unit. The external equipment stops outputting the display signal under the condition that the external equipment is not operated for a long time so as to achieve the purpose of controlling the display device to be dormant, at the moment, the external equipment can send a first power switch signal to a switching unit in the display device, the switching unit controls a first switch unit to be turned off, and at the moment, although the external equipment is switched to a power supply device, the external equipment cannot supply power to the display device because the first switch unit is in an off state.
In this embodiment, the external device may output the first power switch signal to the switching unit when not outputting the display signal to the display device, and the switching unit controls the first switch unit to turn off after receiving the first power switch signal, so as to prevent the external device from supplying power to the display device.
In one embodiment, the display device outputs the first power role switching signal to the external device, the external device sets the external device as the power supply device after receiving the first power role switching signal, and sets the display device as the powered device.
In a specific embodiment, a switching unit in the display apparatus outputs a first power role switching signal to the external device through the USB-C interface when the display apparatus is in a sleep state, the external device sets the external device as a power supply device after receiving the first power role switching signal, and controls the display apparatus to switch to a powered device, at this time, since the display apparatus is the powered device, the display apparatus does not output the power signal to the external device.
In this embodiment, the external device may be set as a power supply device and the display apparatus may be set as a power receiving device by inputting the first power role switching signal to the external device. The display device stops outputting the power supply signal to the external equipment, the power consumption of the display device in the sleep mode is reduced, and the power consumption of the display device is improved.
In one embodiment, referring to fig. 4, the power management method of the display device further includes steps 500 and 600, wherein:
step 500, if the display device enters a display state, a turn-on detection signal is generated.
Specifically, the external device outputs a display signal to the display device, the detection unit in the display device detects the display signal, and determines that the display device enters a display state at the moment, the detection unit generates and outputs a start detection signal, wherein the start detection signal is a high-level pulse, the sleep detection signal can be a low-level pulse, or the start detection signal is a low-level pulse, and the sleep signal is a high-level pulse.
In this embodiment, the display apparatus is switched from the sleep state to the display state and is detected by the detection unit, so as to detect the state of the display apparatus, and generate the turn-on detection signal when the display apparatus is in the display state.
Step 600, sending a second power role switching signal to the external device according to the start detection signal, and switching the state of the external device to a power receiving state.
Specifically, the detection unit generates a start detection signal and sends the start detection signal to the switching unit in the display device, the switching unit sends a second power role switching signal to the external equipment through the USB-C interface, and the external equipment switches the state of the external equipment into a power receiving state after receiving the second power role switching signal and controls the display device to switch into a power supply state.
In this embodiment, the switching unit generates a second power role switching signal when receiving the sleep signal to control the external device to switch from the power supplying state to the power receiving state, and controls the display device to switch from the power receiving state to the power supplying state through the external device, and at this time, the display device supplies power to the external device, thereby solving the power supplying problem of the external device.
In a specific embodiment, referring to fig. 5, the power management method further includes:
step 700, if the display device enters the display state, controlling the power supply connection line between the display device and the external device to be conducted.
Specifically, a power supply connecting circuit is arranged between the external equipment and the display device, and the power supply connecting circuit is in control connection through the first switch unit. The external equipment sends a display signal to the display device and simultaneously sends a second power switch signal to the switching unit in the device, the switching unit controls the first switching unit to be conducted, and at the moment, the display device serves as a power supply end to supply power to the external equipment.
In this embodiment, the external device outputs the display signal to the display device and simultaneously outputs the second power switch signal to the switching unit, and the switching unit receives the first power switch signal and then controls the first switch unit to be turned on, so as to achieve the purpose of supplying power to the external device by the display.
In one embodiment, as shown in connection with fig. 6, a power management apparatus includes:
the display device comprises a detection unit 1, a display unit and a control unit, wherein the detection unit is used for detecting whether the display device enters a dormant state or not, and if the display device enters the dormant state, a dormant detection signal is generated;
and the switching unit 2 is configured to send a first power role switching signal to the external device 6 according to the hibernation detection signal, so as to switch the state of the external device 6 to a power supply state.
Specifically, as shown in the figure, the detection unit 1 is specifically configured to detect whether the display device is used to detect whether the external device 6 outputs the display signal to the display panel unit 4 in the display device for displaying, and when it is detected that the external device 6 does not output the display signal to the display device through the USB-C interface 3, determine that the display device enters a sleep state, and generate and output a sleep detection signal. The switching unit 2 is specifically configured to receive the hibernation detection signal output from the detection unit 1, generate a first power role switching signal according to the hibernation detection signal, output the first power role switching signal to the external device, and switch the state of the external device 6 to a power supply state, where the switching unit 2 controls the switch unit 5 to turn off at the same time, and at this time, although the external device is in the power supply state, the display device cannot be powered through the switch unit 5.
In one embodiment, the external device 6 controls the display device to switch to the power receiving state.
In this embodiment, the detecting unit 1 detects whether the display device is in a sleep state by detecting whether the external device outputs a display image to the display device, when the display device is in the sleep state, the judging device outputs a sleep detection signal to control the switching unit 2 to switch the external device state into a power supply state, the external device 6 sets the display device into a power receiving state, and at this time, the display device does not supply power to the external device, thereby effectively reducing the power consumption of the display device during sleep.
In one embodiment, the detection unit is further configured to generate a turn-on detection signal when the display device enters the display state.
The switching unit is further configured to send a second power role switching signal to the external device according to the start detection signal, so as to switch the state of the external device to the power receiving state.
Specifically, the external equipment outputs a display signal to enter the display device, the display signal is displayed in the display panel after passing through the detection unit, the detection unit detects the display signal and judges that the display device is in a display state, and the detection unit generates a starting detection signal and outputs the starting detection signal. The switching unit generates a second power role switching signal after receiving the starting detection signal and outputs the second power role switching signal to the external equipment, the state of the external equipment is switched to a power receiving state, and the external equipment can switch the state of the display device to a power supply state while switching to the power receiving state.
In this embodiment, the second power role switching signal controls the external device to switch to the power receiving state, and the external device controls the display device to switch to the power supplying state, at this time, the display device supplies power to the external device through the power system, so that the external device can be charged during operation.
In one embodiment, the external device may be a mobile phone, a tablet computer or a computer.
The present invention provides, in another aspect, a display device comprising a storage, a processor, and a computer program stored in the storage and operable on the processor, wherein the processor implements the method and steps as described in any one of the above when executing the computer program.
It should be understood that in the embodiments of the present Application, the Processor may be a Central Processing Unit (CPU), and the Processor may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
In one embodiment, the display device further includes a display panel unit for displaying a display signal input to the display device by the external device.
In a specific embodiment, as shown in fig. 6, the display panel unit 4 is connected to the switch unit 5 and the detection unit 1, and the external power source can supply power to the display panel unit 4, the processor and the central processing unit through the USB-C interface 3 and the switch unit 5, or can supply power to the display panel unit 4, the processor and the central processing unit through a power adapter of the display device. The external equipment 6 outputs display signals to the display panel unit 4 for display through the USB-C interface 3 and the detection unit 1.
In one embodiment, as shown in fig. 6, the display signal output by the external device 6 is processed by the signal processor and then displayed on the display panel unit 4.
The display device is connected with the external equipment through the USB-C interface, the power management method comprises the steps of detecting whether the display device enters a dormant state or not, generating a dormant detection signal if the display device enters the dormant state, sending a first power role switching signal to the external equipment according to the dormant detection signal so as to switch the state of the external equipment into a power supply state, wherein the display device is in a power receiving state, the display device does not supply power to the external equipment, the power consumption of the display device during the dormancy of the external equipment through the USB-C interface is reduced, and the energy efficiency of the display device is improved.
It is obvious to those skilled in the art that for convenience and simplicity of description, the foregoing functional units and circuits are merely illustrated in terms of division, and in practical applications, the above functions may be distributed as different functional units and circuits according to needs, that is, the internal structure of the device is divided into different functional units or circuits to complete all or part of the above described functions. In the embodiments, each functional unit and each circuit may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit, and the integrated units may be implemented in a form of hardware, or in a form of software functional units. In addition, specific names of the functional units and circuits are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and circuits in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims (10)

1. The power management method of the display device is characterized in that the display device is connected with external equipment through a USB-C interface, and the power management method comprises the following steps:
detecting whether the display device enters a dormant state;
if the display device enters the dormant state, generating a dormant detection signal;
and sending a first power role switching signal to the external equipment according to the dormancy detection signal so as to switch the state of the external equipment into a power supply state.
2. The method for power management of a display device according to claim 1, wherein the detecting whether the display device enters a sleep state comprises:
acquiring a display signal from the external equipment through the USB-C interface;
and if the display signal is not received, judging that the display device enters the dormant state.
3. The power management method of a display device according to claim 1, wherein the power management method further comprises:
and if the display device enters the dormant state, controlling a power supply connecting line between the display device and the external equipment to be disconnected.
4. The method for power management of a display device according to claim 1, wherein the display device outputs a first power role switching signal to an external device, and the external device sets the external device as a power supply device and the display device as a powered device after receiving the first power role switching signal.
5. The method for power management of a display device according to claim 1, further comprising:
if the display device enters a display state, generating a starting detection signal;
and sending a second power role switching signal to the external equipment according to the starting detection signal so as to switch the state of the external equipment into a power receiving state.
6. The power management method of a display device according to claim 5, wherein the power management method further comprises:
and if the display device enters a display state, controlling the conduction of a power supply connecting line between the display device and the external equipment.
7. A power management device for a display device, the power management device comprising:
a detection unit for detecting whether the display device enters a sleep state; if the display device enters the dormant state, generating a dormant detection signal;
and the switching unit is used for sending a first power role switching signal to the external equipment according to the dormancy detection signal so as to switch the state of the external equipment into a power supply state.
8. The power management device of claim 7, wherein the detection unit is further configured to generate a turn-on detection signal when the display device enters a display state;
the switching unit is further configured to send a second power role switching signal to the external device according to the start detection signal, so as to switch the state of the external device to a power receiving state.
9. A display device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any one of claims 1 to 6 when executing the computer program.
10. The display apparatus of claim 9, further comprising a display panel unit for displaying a display signal input to the display apparatus from an external device.
CN202111645736.0A 2021-12-29 2021-12-29 Power management method of display device, power management device and display device Pending CN114415818A (en)

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CN202111645736.0A CN114415818A (en) 2021-12-29 2021-12-29 Power management method of display device, power management device and display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111645736.0A CN114415818A (en) 2021-12-29 2021-12-29 Power management method of display device, power management device and display device

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Publication Number Publication Date
CN114415818A true CN114415818A (en) 2022-04-29

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