CN117198206A - Power supply device, display device, energy-saving control method, and nonvolatile storage medium - Google Patents
Power supply device, display device, energy-saving control method, and nonvolatile storage medium Download PDFInfo
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Abstract
The application discloses a power supply device, a display device, an energy saving control method and a nonvolatile storage medium. Wherein, this power supply device includes: the power supply device comprises an alternating current input end and a first direct current output end, wherein the first direct current output end is used for supplying power to a display module of the display device, the first direct current output end comprises an energy-saving control switch, the energy-saving control switch comprises a signal interface, the signal interface is used for receiving a switch control signal from video signal processing equipment, the video signal processing equipment is used for processing video signals and transmitting the processed video signals to the display device for displaying, and the switch control signal is used for controlling the energy-saving control switch to be disconnected to supply power to the display module under the condition that the video signals are invalid signals. The application solves the technical problem that the energy is still consumed when the LED display screen is black, so that the equipment is not energy-saving enough.
Description
Technical Field
The present application relates to the field of display, and more particularly, to a power supply device, a display device, an energy saving control method, and a nonvolatile storage medium.
Background
The energy-saving modes of the LED display screen product currently comprise three main modes of 1, 2, 3 and dynamic energy saving, wherein the two modes adopt an accurate power supply mode, so that the power consumption of the LED display screen is reduced; the third energy-saving mode mainly reduces the working power consumption of the IC by the different power consumption output when the different gray scales are expressed through the driving capability of the IC, thereby achieving the aim of energy saving.
The prior energy-saving technology has the problems that the clients cannot be controlled to completely cut off the power supply when the clients are not in use, video source signals of the video processor are closed in many sites, the display screen is in a black screen state after the signals are lost, and the LED display screen is still in a black screen power consumption state when the LED display screen works, consumes energy and is still not energy-saving.
In view of the above problems, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the application provides power supply equipment, display equipment, an energy-saving control method and a nonvolatile storage medium, which at least solve the technical problem that equipment is not energy-saving enough due to still energy consumption when an LED display screen is black.
According to an aspect of an embodiment of the present application, there is provided a power supply apparatus including: the display device comprises an alternating current input end and a first direct current output end, wherein the first direct current output end is used for supplying power to a display module of the display device, the first direct current output end comprises an energy-saving control switch, the energy-saving control switch comprises a signal interface, the signal interface is used for receiving a switch control signal from video signal processing equipment, the video signal processing equipment is used for processing video signals and transmitting the processed video signals to the display device for displaying, and the switch control signal is used for controlling the energy-saving control switch to be disconnected to supply power to the display module under the condition that the video signals are invalid signals.
Optionally, the energy-saving control switch is: flyback converter circuit.
Optionally, the flyback converter circuit comprises: the power switch tube, the transformer and the rectifier diode; the power switch tube is respectively connected with the signal interface and the primary coil of the transformer; the secondary coil of the transformer is connected with the rectifier diode.
Optionally, the power switch tube is an N-type metal-oxide-semiconductor transistor, the signal interface is connected with a gate of the N-type metal-oxide-semiconductor transistor, the signal interface receives a switch control signal transmitted by the video signal processing device and comprises a high-level signal and a low-level signal, and the switch control signal is a high-level signal when the video signal is an invalid signal.
Optionally, the flyback converter circuit further comprises: and the pi-type filter circuit is connected with the secondary coil of the transformer.
Optionally, the power supply apparatus further includes: and the second direct current output end is connected with the alternating current input end and is used for supplying power for a display board card of the display device.
According to another aspect of the embodiments of the present application, there is also provided a display apparatus including: the display module is connected with a first direct current output end in the power supply device, the display device is used for displaying video transmitted by the video signal processing device, and the power supply device is used for supplying power to the display module.
Optionally, the display device further includes: a display board; in case the power supply device further comprises a second dc output, the second dc output is connected to the display board for supplying power to the display board.
According to another aspect of the embodiment of the present application, there is also provided an energy saving control method, including: the video signal processing device detects a state of a video signal; in the case that the video signal is an invalid signal, the video signal processing apparatus transmits a switch control signal to the above-mentioned display apparatus; the energy-saving control switch of the power supply device in the display device cuts off the first direct current output end according to the switch control signal, wherein the power supply device in the display device cannot supply power to the display module in the display device under the condition that the energy-saving control switch is cut off.
According to still another aspect of the embodiments of the present application, there is further provided a nonvolatile storage medium, where the nonvolatile storage medium includes a stored program, and when the program runs, the device in which the nonvolatile storage medium is controlled to execute any one of the energy saving control methods described above.
According to still another aspect of the embodiment of the present application, there is further provided a computer device, including a memory for storing a program, and a processor for running the program stored in the memory, wherein the program executes any one of the energy saving control methods described above when running.
In the embodiment of the application, the power supply equipment comprising the alternating current input end and the first direct current output end is adopted, the first direct current output end is used for supplying power to the display module of the display equipment, the first direct current output end comprises the energy-saving control switch, the energy-saving control switch comprises the signal interface, the signal interface is used for receiving the switch control signal from the video signal processing equipment, the video signal processing equipment is used for processing the video signal and transmitting the processed video signal to the display equipment for display, and the switch control signal is used for controlling the energy-saving control switch to be disconnected to supply power to the display module under the condition that the video signal is an invalid signal, so that the purpose of not supplying power to the display module when the display equipment is in a black screen is achieved, the technical effect of reducing the display power consumption of the display equipment is achieved, and the technical problem that the equipment is not energy-saving enough due to the still energy consumption when the LED display screen is in a black screen is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 is a schematic diagram of a power supply apparatus provided according to an embodiment of the present application;
FIG. 2 is a circuit schematic of a flyback converter circuit provided in accordance with an alternative embodiment of the present application;
FIG. 3 shows a block diagram of a hardware architecture of a computer terminal for implementing a power saving control method;
FIG. 4 is a schematic flow chart of an energy saving control method according to an embodiment of the present application;
fig. 5 is a schematic diagram of a display screen energy-saving control method according to an alternative embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the display screen, the display module and the transmitting card device are components which complement the receiving card device. The Display Module (Display Module) refers to an image Display unit in a Display screen, and is generally composed of LED lamp beads, a driving circuit, a pixel control circuit, a packaging material and the like. The LED lamp beads are responsible for converting received signals into visible images and displaying different colors and brightness through the on-off of the LED lamp beads.
A transmitting Card device (setting Card) is a device for transmitting image and video signals to a display module. It is typically used in conjunction with a receiver card device to receive image and video signals from a computer, video processor or other signal source, process and convert the signals, and then send the processed signals to a display module. The transmitting card device generally has a plurality of input interfaces, such as HDMI, DVI, VGA, etc., for connection to an external signal source for transmitting image and video signals.
A receiving card device, also called a display control card, a receiving card board, is a device for converting image and video signals into a format acceptable and displayable by a display screen. The main functions of the receiving card device include decoding input signals, image processing, signal conversion, driving a display screen, etc. It receives image and video signals from an external source (e.g., computer, video player, etc.), processes and converts them, and then sends the processed signals to a display screen. The receiving card device typically has a plurality of input interfaces (e.g., HDMI, DVI, VGA, etc.) and output interfaces (e.g., data connection interfaces, power interfaces, etc.) for interfacing with external devices. Alternatively, the receiving card device may be connected to the display screen as a separate device. And can also be installed in a control box of the display screen or can form the whole display system together with other electronic devices of the display screen.
In the display screen, the transmitting card device works together with the receiving card device, the receiving card device is responsible for receiving, decoding and processing the input signals, and the transmitting card device is responsible for transmitting the processed signals to the display module, controlling the brightness, color, refresh frequency and the like of the display module. In summary, the display module is an image display unit in the display screen, and the transmitting card device is a device for transmitting the image and video signals to the display module.
In the related art, a customer cannot be controlled to conduct overall power-off processing on a display screen when the display screen is not used, video source signals of a video processor are closed in many sites, the display screen is in a black screen state after the signals are lost, and at the moment, the LED display screen is still in a black screen power consumption state when working, and energy is still consumed.
In order to solve the above problems, the present application provides a more energy-saving apparatus. Fig. 1 is a schematic diagram of a power supply apparatus provided according to an embodiment of the present application, and as shown in fig. 1, the power supply apparatus 10 includes: the display module comprises an alternating current input end 11 and a first direct current output end 12, wherein the first direct current output end is used for supplying power to a display module of the display device, the first direct current output end comprises an energy-saving control switch 13, the energy-saving control switch comprises a signal interface, the signal interface is used for receiving a switch control signal from video signal processing equipment, the video signal processing equipment is used for processing video signals and transmitting the processed video signals to the display device for displaying, and the switch control signal is used for controlling the energy-saving control switch to cut off power supply for the display module under the condition that the video signals are invalid signals.
As an alternative embodiment, the energy efficient control switch may be a flyback converter circuit. Alternatively, the flyback converter circuit may comprise a power switch tube, a transformer, a rectifier diode; the power switch tube is respectively connected with the signal interface and the primary coil of the transformer; the secondary coil of the transformer is connected with the rectifier diode.
Flyback converter (Flyback Converter) is a switching power supply circuit for converting an input voltage to a desired output voltage. Flyback converters may consist of a transformer, switching tubes (typically MOSFETs), diodes, capacitors, inductors, etc. The energy transmission and conversion are realized by periodically switching the on and off states of the switching tube.
The flyback converter circuit has the following working principle: 1. when the switching tube is conducted, the input voltage generates a magnetic field through the primary coil of the transformer, and energy is stored in the magnetic field of the transformer; 2. when the switching tube is cut off, the magnetic field collapses, a reverse voltage is generated, and energy is transferred to a secondary coil of the transformer; 3. the magnitude of the output voltage can be adjusted by controlling the on and off time of the switching tube; 4. the output voltage can be rectified and filtered by a combination of diodes and capacitors.
The flyback converter circuit has the advantages of simple structure, low cost, high efficiency and adjustable output, and the control signal of the flyback converter circuit is simpler, can be converted as long as the control signal is in a high-low level, and has no high requirement on the anti-interference degree of the signal.
A transformer is an electrical device for transforming voltage and current, which can transform the voltage and current of alternating current. The transformer has one or more primary windings and one or more secondary windings. Transformers are mainly used for alternating current transformation, in which alternating current generates a varying magnetic field in a primary coil, which varying magnetic field is conducted through an iron core into a secondary coil, thereby inducing a voltage in the secondary coil. By varying the ratio of the number of turns of the primary and secondary windings, a transformation between the input voltage and the output voltage can be achieved.
As an alternative embodiment, the power switch is an N-type metal-oxide-semiconductor transistor, the signal interface is connected to the gate of the N-type metal-oxide-semiconductor transistor, the signal interface receives a switch control signal transmitted by the video signal processing device, and the switch control signal includes a high level signal and a low level signal, and is a high level signal when the video signal is an inactive signal. Wherein the flyback converter circuit may further comprise: and the pi-type filter circuit is connected with the secondary coil of the transformer.
Fig. 2 is a schematic circuit diagram of a flyback converter circuit according to an alternative embodiment of the present application, as shown in fig. 2, in which a power switch tube is Q1, a switch control signal may be a PWM output signal in the figure, a transformer is T1, and a secondary coil and a pi-type filter circuit connected to the secondary coil are arranged on the right side of the transformer.
In the embodiment shown in fig. 2, the gate of the Q1 power switch tube is connected to the PWM output signal, and when the gate inputs a high level, the switch tube Q1 is turned on, and when the gate inputs a low level, the switch tube Q1 is turned off. When the switching tube Q1 is turned on, a current flows through the primary winding NP of the transformer, and the secondary rectifying diode D 2 Cut-off, the secondary does not flow through, the electric energy is stored in NP in the primary inductance coil of the high-frequency transformer; when the switching tube Q1 is turned off, the primary coil current is turned off, all winding voltages are reversed, the secondary rectifying diode is turned on, the electric energy on the primary coil is transmitted to the secondary winding, and is rectified and C by the secondary rectifying diode D2 3 、C 4 、C 5 、L 1 Composition of the compositionThe required direct current voltage is obtained after the filtering of the pi-type filter.
As an alternative embodiment, the power supply device may further comprise a second dc output, wherein the second dc output is connected to the ac input, and the second dc output is configured to supply power to a display board of the display device.
According to another aspect of the embodiments of the present application, there is also provided a display apparatus including: the display module is connected with a first direct current output end in the power supply device, the display device is used for displaying video transmitted by the video signal processing device, and the power supply device is used for supplying power to the display module.
Optionally, the display device may further include a display board card; in case the power supply device further comprises a second dc output, the second dc output is connected to the display board for supplying power to the display board.
According to an embodiment of the present application, there is provided an embodiment of an energy saving control method, it being noted that the steps shown in the flowcharts of the drawings may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that herein.
The method embodiments provided by the embodiments of the present application may be performed in a mobile terminal, a computer terminal, or similar computing device. Fig. 3 shows a hardware block diagram of a computer terminal for implementing the power saving control method. As shown in fig. 3, the computer terminal 30 may include one or more (shown as processor 302a, processor 302b, … …, processor 302 n) processors (the processor may include, but is not limited to, a microprocessor MCU or a processing device such as a programmable logic device FPGA) and a memory 304 for storing data. In addition, the method may further include: a display, an input/output interface (I/O interface), a Universal Serial BUS (USB) port (which may be included as one of the ports of the BUS), a network interface, a power supply, and/or a camera. It will be appreciated by those of ordinary skill in the art that the configuration shown in fig. 3 is merely illustrative and is not intended to limit the configuration of the electronic device described above. For example, the computer terminal 30 may also include more or fewer components than shown in FIG. 3, or have a different configuration than shown in FIG. 3.
It should be noted that the one or more processors and/or other data processing circuits described above may be referred to herein generally as "data processing circuits. The data processing circuit may be embodied in whole or in part in software, hardware, firmware, or any other combination. Furthermore, the data processing circuitry may be a single stand-alone processing module or incorporated, in whole or in part, into any of the other elements in the computer terminal 30. As referred to in embodiments of the application, the data processing circuit acts as a processor control (e.g., selection of the path of the variable resistor termination connected to the interface).
The memory 304 may be used to store software programs and modules of application software, such as program instructions/data storage devices corresponding to the energy saving control method in the embodiment of the present application, and the processor executes the software programs and modules stored in the memory 304, thereby executing various functional applications and data processing, that is, implementing the energy saving control method of the application program. Memory 304 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 304 may further include memory located remotely from the processor, which may be connected to the computer terminal 30 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The display may be, for example, a touch screen type Liquid Crystal Display (LCD) that may enable a user to interact with a user interface of the computer terminal 30.
Fig. 4 is a schematic flow chart of an energy saving control method according to an embodiment of the present application, as shown in fig. 4, the method includes the following steps:
step S402, the video signal processing apparatus detects the state of the video signal;
step S404, in the case that the video signal is an invalid signal, the video signal processing device sends a switch control signal to the display device;
in step S406, the energy-saving control switch of the power supply device in the display device disconnects the first dc output terminal according to the switch control signal, wherein the power supply device in the display device cannot supply power to the display module in the display device when the energy-saving control switch is disconnected.
The power supply equipment comprising an alternating current input end and a first direct current output end is adopted, the first direct current output end is used for supplying power to a display module of the display equipment, the first direct current output end comprises an energy-saving control switch, the energy-saving control switch comprises a signal interface, the signal interface is used for receiving a switch control signal from video signal processing equipment, the video signal processing equipment is used for processing video signals and transmitting the processed video signals to the display equipment for displaying, the switch control signal is used for controlling the energy-saving control switch to be disconnected to supply power to the display module under the condition that the video signals are invalid signals, the purpose that the display module is not supplied with power when the display equipment is in a black screen state is achieved, the technical effect of reducing the display power consumption of the display equipment is achieved, and the technical problem that the LED display screen is not energy-saving enough is solved.
Fig. 5 is a schematic diagram of a display screen energy-saving control method according to an alternative embodiment of the present application. The PWM signal in fig. 5 is the control signal described above. The PWM (Pulse Width Modulation) signal is a pulse width modulated signal whose average power is controlled by adjusting the width of the pulse. PWM signals are commonly used in power electronics applications such as ac frequency converters, dc motor drives, inverters, and the like. By adjusting the pulse width of the PWM signal, the output voltage or current can be controlled, thereby realizing the accurate control of the power equipment. The PWM signal works on the principle that the average power of the signal is controlled by a fast switching circuit. When the pulse width is wider, the switch circuit is in a conducting state for a long time, and the output voltage or current is larger; when the pulse width is narrow, the switch circuit is in an off state for a long time, and the output voltage or current is small. PWM signals have the advantages of high efficiency, accurate control, strong anti-interference capability and the like, and therefore, are widely applied to a plurality of power electronic applications.
As shown in fig. 5, when the signal source received by the transmission control device is processed as a black screen or no video source is input, a command is issued to the receiving card device collectively, and the output of the switching power supply is controlled by a high level, and the switching power supply is a single-path AC input, a double-path DC output, one path of DC output is not controlled by a switch, and the receiving card device is directly supplied with power, and the other path of DC output is added with a flyback converter circuit.
It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may be performed in other orders or concurrently in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present application.
From the above description of the embodiments, it will be clear to those skilled in the art that the energy saving control method according to the above embodiments may be implemented by means of software plus necessary general hardware platform, but of course may also be implemented by hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present application.
Embodiments of the present application may provide a computer device, optionally in this embodiment, the computer device may be located in at least one network device of a plurality of network devices of a computer network. The computer device includes a memory and a processor.
The memory may be used to store software programs and modules, such as program instructions/modules corresponding to the energy-saving control method and apparatus in the embodiments of the present application, and the processor executes the software programs and modules stored in the memory, thereby executing various functional applications and data processing, that is, implementing the energy-saving control method described above. The memory may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory may further include memory remotely located relative to the processor, which may be connected to the computer terminal via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The processor may call the information and the application program stored in the memory through the transmission device to perform the following steps: the video signal processing device detects a state of a video signal; in the case that the video signal is an invalid signal, the video signal processing apparatus transmits a switch control signal to the above-mentioned display apparatus; the energy-saving control switch of the power supply device in the display device cuts off the first direct current output end according to the switch control signal, wherein the power supply device in the display device cannot supply power to the display module in the display device under the condition that the energy-saving control switch is cut off.
Those skilled in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be implemented by a program for instructing a terminal device to execute on associated hardware, the program may be stored in a non-volatile storage medium, and the storage medium may include: flash disk, read-Only Memory (ROM), random-access Memory (Random Access Memory, RAM), magnetic or optical disk, and the like.
Embodiments of the present application also provide a nonvolatile storage medium. Alternatively, in the present embodiment, the above-described nonvolatile storage medium may be used to store the program code executed by the energy saving control method provided in the above-described embodiment.
Alternatively, in this embodiment, the above-mentioned nonvolatile storage medium may be located in any one of the computer terminals in the computer terminal group in the computer network, or in any one of the mobile terminals in the mobile terminal group.
Optionally, in the present embodiment, the non-volatile storage medium is arranged to store program code for performing the steps of: the video signal processing device detects a state of a video signal; in the case that the video signal is an invalid signal, the video signal processing apparatus transmits a switch control signal to the above-mentioned display apparatus; the energy-saving control switch of the power supply device in the display device cuts off the first direct current output end according to the switch control signal, wherein the power supply device in the display device cannot supply power to the display module in the display device under the condition that the energy-saving control switch is cut off.
The foregoing embodiment numbers of the present application are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present application, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
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 units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a non-volatile storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.
Claims (10)
1. A power supply apparatus, characterized by comprising: the display device comprises an alternating current input end and a first direct current output end, wherein the first direct current output end is used for supplying power to a display module of the display device, the first direct current output end comprises an energy-saving control switch, the energy-saving control switch comprises a signal interface, the signal interface is used for receiving a switch control signal from video signal processing equipment, the video signal processing equipment is used for processing video signals and transmitting the processed video signals to the display device for displaying, and the switch control signal is used for controlling the energy-saving control switch to cut off power supply to the display module under the condition that the video signals are invalid signals.
2. The power supply apparatus according to claim 1, wherein the energy saving control switch is: flyback converter circuit.
3. The power supply apparatus of claim 2, wherein the flyback converter circuit comprises: the power switch tube, the transformer and the rectifier diode; the power switch tube is respectively connected with the signal interface and the primary coil of the transformer; the secondary coil of the transformer is connected with the rectifier diode.
4. A power supply device according to claim 3, wherein the power switching transistor is an N-type metal-oxide-semiconductor transistor, the signal interface is connected to a gate of the N-type metal-oxide-semiconductor transistor, the signal interface receives a switching control signal transmitted by the video signal processing device and includes a high level signal and a low level signal, and the switching control signal is the high level signal in the case that the video signal is an inactive signal.
5. A power supply device according to claim 3, wherein the flyback converter circuit further comprises: and the pi-type filter circuit is connected with the secondary coil of the transformer.
6. The power supply apparatus according to any one of claims 1 to 5, characterized in that the power supply apparatus further comprises: and the second direct current output end is connected with the alternating current input end and is used for supplying power for the display board card of the display device.
7. A display device, the display device comprising: a display module and a power supply device according to any one of claims 1 to 6, wherein the display module is connected to a first dc output in the power supply device, the display device is configured to display video transmitted by a video signal processing device, and the power supply device is configured to supply power to the display module.
8. The display device according to claim 7, wherein the display device further comprises: a display board; and in the case that the power supply device further comprises a second direct current output end, the second direct current output end is connected with the display board card and is used for supplying power to the display board card.
9. An energy saving control method, characterized by comprising:
the video signal processing device detects a state of a video signal;
in the case where the video signal is an invalid signal, the video signal processing apparatus transmits a switch control signal to the display apparatus of claim 7;
and the energy-saving control switch of the power supply equipment in the display equipment is used for switching off the first direct current output end according to the switch control signal, wherein the power supply equipment in the display equipment cannot supply power to the display module in the display equipment under the condition that the energy-saving control switch is switched off.
10. A nonvolatile storage medium, characterized in that the nonvolatile storage medium includes a stored program, wherein the device in which the nonvolatile storage medium is controlled to execute the energy saving control method according to claim 9 when the program runs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311175528.8A CN117198206A (en) | 2023-09-11 | 2023-09-11 | Power supply device, display device, energy-saving control method, and nonvolatile storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311175528.8A CN117198206A (en) | 2023-09-11 | 2023-09-11 | Power supply device, display device, energy-saving control method, and nonvolatile storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117198206A true CN117198206A (en) | 2023-12-08 |
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ID=88984611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311175528.8A Pending CN117198206A (en) | 2023-09-11 | 2023-09-11 | Power supply device, display device, energy-saving control method, and nonvolatile storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117198206A (en) |
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2023
- 2023-09-11 CN CN202311175528.8A patent/CN117198206A/en active Pending
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