CN114967899A - Display control method, display control equipment, display screen and display system - Google Patents

Display control method, display control equipment, display screen and display system Download PDF

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Publication number
CN114967899A
CN114967899A CN202210682648.6A CN202210682648A CN114967899A CN 114967899 A CN114967899 A CN 114967899A CN 202210682648 A CN202210682648 A CN 202210682648A CN 114967899 A CN114967899 A CN 114967899A
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China
Prior art keywords
module
display
powered
power
receiving module
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Granted
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CN202210682648.6A
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Chinese (zh)
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CN114967899B (en
Inventor
王文博
刘钊
韦桂锋
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Xian Novastar Electronic Technology Co Ltd
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Xian Novastar Electronic Technology Co Ltd
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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
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G06F1/3231—Monitoring the presence, absence or movement of users
    • 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
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G06F1/3215—Monitoring of peripheral devices
    • G06F1/3218—Monitoring of peripheral devices of display devices
    • 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
    • G06F1/32—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
    • G06F1/3287—Power saving characterised by the action undertaken by switching off individual functional units in the computer system
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • Power Sources (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The application is suitable for the technical field of display, and provides a display control method, display control equipment, a display screen and a display system, wherein the display control method comprises the following steps: responding to a sleep instruction, and outputting a first turn-off control signal to a receiving module in a display screen; the first turn-off control signal is used for indicating the receiving module to control the power-off of a display module in the display screen; after the display module is powered off, controlling the receiving module to be powered off; and after the receiving module is powered off, controlling all elements except the memory, the second power management module and the power management chip in the main control unit in the display control equipment to be powered off. The scheme can reduce the power consumption of the display system during sleep.

Description

Display control method, display control equipment, display screen and display system
Technical Field
The application belongs to the technical field of display, and particularly relates to a display control method, display control equipment, a display screen and a display system.
Background
A display system typically includes a display screen and a display control device, such as a television box, that performs display control of the display screen. The display screen consumes more power during operation, thus resulting in higher power consumption of the whole display system during operation. In order to reduce power consumption of the display system, the display system may be controlled to enter a sleep state when the user does not use the display system for a short time.
However, the mode of controlling the display system to enter the sleep state is generally to control the display screen to be blank, that is, to control each lamp bead in the display screen to be turned off, so that the display screen is actually still in the running state, and thus the mode cannot really reduce the power consumption of the display system in the sleep state.
Disclosure of Invention
The embodiment of the application provides a display control method, display control equipment, a display screen and a display system, which can reduce the power consumption of the display system in a dormant state.
In a first aspect, an embodiment of the present application provides a display control method, including:
responding to a sleep instruction, and outputting a first turn-off control signal to a receiving module in a display screen; the first turn-off control signal is used for indicating the receiving module to control the power-off of a display module in the display screen;
after the display module is powered off, controlling the receiving module to be powered off;
and after the receiving module is powered off, controlling all elements except the memory, the second power management module and the power management chip in the main control unit in the display control equipment to be powered off.
In a second aspect, an embodiment of the present application provides a display screen, which includes a first power management module, a first switch module, a display module, and a receiving module;
the first power supply management module is used for supplying power to the display module;
the first switch module is connected between the first power management module and the display module and is used for controlling the on-off of a power supply path of the display module;
the receiving module is connected with the display control device, the first switch module and the display module, and the receiving module is used for responding to a first turn-off control signal from the display control device and controlling the first switch module to be switched off so as to cut off a power supply path of the display module.
In a third aspect, an embodiment of the present application provides a display control device, which includes a second power management module, a processing module, a second switch module, and a sending module;
the second power management module is connected with the processing module, the second switch module and the sending module, and the second power management module is used for supplying power to the processing module, the second switch module and the sending module;
the processing module is used for responding to the sleep instruction and outputting a first turn-off control signal to the sending module; the second switch module is used for outputting a second turn-off control signal to the second switch module after the display module in the display screen is powered off; the power supply control module is used for controlling all elements except the memory, the second power supply management module and the power supply management chip in the main control unit in the display control equipment to be powered off after the receiving module in the display screen is powered off;
the sending module is connected with the processing module and is used for sending the first turn-off control signal to a receiving module in a display screen; the first turn-off control signal is used for indicating the receiving module to control the display module to be powered off;
the second switch module is connected in a power supply path of the receiving module and is used for controlling the receiving module to be powered off based on the second turn-off control signal.
In a fourth aspect, embodiments of the present application provide a display system, including a display screen as described in the second aspect above and a display control device as described in the third aspect above; the display control device is connected with the display screen.
In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored, and the computer program, when executed by a processor, implements the display control method according to the first aspect.
In a sixth aspect, embodiments of the present application provide a computer program product, which, when run on a display control apparatus, causes the display control apparatus to perform the display control method according to the first aspect.
The display control method, the display control device, the display system, the computer readable storage medium and the computer program product provided by the embodiment of the application have the following beneficial effects:
according to the display control method provided by the embodiment of the application, when the display control device receives the sleep instruction, the display control device firstly outputs the first turn-off control signal to the receiving module in the display screen, so that the receiving module controls the display module in the display screen to be powered off, and then the display control device controls the receiving module to be powered off, so that the whole display screen can be controlled to be powered off, and the display screen is enabled to be free of power consumption output; after the display screen is powered off, the display control equipment also controls all elements except the memory, the second power management module and the power management chip in the main control unit to be powered off, so that the power consumption of the display control equipment can be reduced; therefore, by reducing the power consumption of the display screen and the display control device during the sleep, the power consumption of the whole display system during the sleep can be reduced.
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 embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only 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 inventive exercise.
Fig. 1 is a schematic architecture diagram of a display system provided in an embodiment of the present application;
fig. 2 is a schematic flowchart of a display control method according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a display control apparatus according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a display screen provided in an embodiment of the present application.
Detailed Description
It is to be understood that the terminology used in the embodiments of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the application.
A display system typically includes a display screen and a display control device, such as a television box, that performs display control of the display screen. Because the lamp plate of display screen includes the display array who comprises a plurality of lamp pearls usually, consequently power consumption is great when the display screen moves to lead to whole display system to be higher at the power consumption of operation in-process.
In order to reduce the power consumption of the display system, when the user does not use the display system for a short time, one scheme is to control the display system to enter a sleep state, and the other scheme is to control the display system to be powered off.
However, the scheme for controlling the display system to enter the sleep state is generally to control the display screen to be blank, that is, to control each lamp bead in the display screen to be turned off, so that the display screen is actually still in the running state, and therefore, the scheme cannot really reduce the power consumption of the display system in the sleep state. According to the scheme for controlling the display system to be powered off, when a user needs to use the display system again, the display system needs to be powered on again, and therefore the user cannot wake up the display system quickly.
Based on this, the embodiment of the present application first provides a display system. Referring to fig. 1, fig. 1 is a schematic structural diagram of a display system according to an embodiment of the present disclosure. As shown in fig. 1, the display system may include a display screen 11 and a display control device 12 connected to the display screen 11.
The display control device 12 is configured to perform display control on the display screen 11, for example, the display control device 12 may be configured to acquire content to be displayed and control the display screen 11 to display the content to be displayed.
The connection between the display screen 11 and the display control device 12 may be a wired connection or a wireless connection. The wired connection may include, but is not limited to, a wired connection based on a Universal Serial Bus (USB), a High Definition Multimedia Interface (HDMI), or the like. The wireless connection may include a wireless connection based on bluetooth, wireless fidelity (WIFI), or mobile communication technology, among others. By way of example, the mobile communication technology may include, but is not limited to, a fifth generation mobile communication technology (5G for short), a fourth generation mobile communication technology (4G for short), and the like.
In practical applications, when the display system needs to be used, the display system may be connected to the power supply device 13, so that the power supply device 13 supplies power to the display screen 11 and the display control device 12 in the display system.
Specifically, the power supply device 13 may include an alternating current-direct current (AC-DC) converter, and the AC-DC converter is configured to convert an AC signal from an AC power supply (not shown) into a DC signal and supply the DC signal to the display screen 11 and the display control device 12, so as to supply power to the display screen 11 and the display control device 12.
For example, the display 11 may be a Liquid Crystal Display (LCD) or an Organic Light Emitting Diode (OLED) display. The LCD may include, but is not limited to, an LED display screen with a Light Emitting Diode (LED) as a backlight, a CCFL display screen with a Cold Cathode Fluorescent Lamp (CCFL) as a backlight, and the like. The OLED display screen may include, but is not limited to, a flexible OLED display screen or a rigid OLED display screen, etc. The embodiment of the present application does not particularly limit the specific type of the display screen 11.
Specifically, as shown in fig. 1, the display screen 11 may include a display module 111, a first power management module 112, a first switch module 113, and a receiving module 114.
The display module 111 is also a lamp panel, and the display module 111 may include a display array formed by a plurality of lamp beads and a driving chip (not shown) for driving each lamp bead. Each lamp bead can correspond to one pixel of the display screen 111. As an example and not by way of limitation, the lamp beads may be Light Emitting Diodes (LEDs), that is, the display module 111 may be an LED lamp panel.
The first power management module 112 is connected to the power device 13, and the first power management module 112 is configured to convert the dc signal output by the power device 13 into a dc signal required by the operation of the display module 111, so as to supply power to the display module 111. By way of example and not limitation, the first power management module 112 may include a direct current-direct current (DC-DC) converter, and a specific structure of the DC-DC converter may be set according to actual requirements, which is not particularly limited herein.
The first switch module 113 is connected between the first power management module 112 and the display module 111, and the first switch module 113 is used for controlling the on/off of the power supply path of the display module 111.
It is understood that the power supply path of the display module 111 is a path between the first power management module 112 and the display module 111.
Specifically, the first switch module 113 is configured to switch on a power supply path of the display module 111 when being turned on, so that the first power management module 112 can supply power to the display module 111 through the power supply path of the display module 111, and further the display module 111 can normally operate; when the first switch module 113 is turned off, the power supply path of the display module 111 is cut off, so that the first power management module 112 cannot supply power to the display module 111, and the display module 11 is powered off, at this time, the display module 11 stops operating.
For example, the first switch module 113 may be a switch tube, a relay, a switch circuit, or the like. The specific structure of the first switch module 113 may be set according to actual requirements, and is not particularly limited herein.
The receiving module 114 is connected to the display control device 12, the first switch module 113 and the display module 111, and the receiving module 114 is configured to receive the display control signal from the display control device 12.
The display control signal may include a display signal and a first switch control signal.
The display signal is a signal (e.g., an HDMI signal) recognizable by the receiving module 114 obtained by converting the content to be displayed, that is, the display signal may be used to describe the content to be displayed.
The first switch control signal is used for controlling the on/off of the first switch module 113. Specifically, the first switch control signal may include a first on control signal and a first off control signal, and the first on control signal may be a high level signal and the first off control signal may be a low level signal, for example.
Based on this, the receiving module 114 is further configured to convert the display signal into a display driving signal, and send the display driving signal to the display module 111, so as to drive the display module 111 to display the content to be displayed, which is described by the display signal. In addition, the receiving module 114 is further configured to control on/off of the first switch module 113 based on the first switch control signal. Specifically, when the first switch control signal is a first turn-on control signal, the receiving module 114 is configured to control the first switch module 113 to turn on based on the first turn-on control signal; when the first switch control signal is the first off control signal, the receiving module 114 controls the first switch module 113 to turn off based on the first off control signal.
In practical applications, the receiving module 114 may be a receiving card.
The display control device 12 may be a small computer device, such as a web tv box. The display control device 12 may be loaded with a Linux operating system, an Android (Android) operating system, or the like. Based on this, various Applications (APP) adapted to the operating system, such as a video playback APP, can be installed in the display control apparatus 12.
Specifically, as shown in fig. 1, the display control apparatus 12 may include a second power management module 121, a processing module 122, a second switching module 123, and a transmitting module 124.
The second power management module 121 is connected to the power device 13, the processing module 122, the second switch module 123 and the sending module 124, and the second power management module 121 is configured to convert a dc signal output by the power device 13 into a dc signal required by the operation of the processing module 122, the receiving module 112 and the sending module 124, so as to supply power to the processing module 122, the receiving module 112 and the sending module 124.
By way of example and not limitation, the second power management module 121 may include a direct current-direct current (DC-DC) converter, and a specific structure of the DC-DC converter may be set according to actual requirements, which is not particularly limited herein.
The processing module 122 is connected to a second switching module 123 and a transmitting module 124. The processing module 122 is configured to, when receiving a display instruction (e.g., a video playing instruction), obtain content to be displayed, and send the content to be displayed to the sending module 124. For example, the processing module 122 may obtain the content to be displayed from a video website or a local storage unit, and the obtaining manner of the content to be displayed is not particularly limited herein.
The processing module 122 is further configured to output a first switch control signal to the sending module 124 based on the received device state control instruction, and output a second switch control signal to the second switch module 123.
The device state control instruction may include a power-on instruction, a sleep instruction, or a sleep wake-up instruction. The second switch control signal is used to control on/off of the second switch module 123, and the second switch control signal may include a second on control signal and a second off control signal, where the second on control signal is used to control the second switch module 123 to be on, and the second off control signal is used to control the second switch module 123 to be off.
Specifically, when receiving the sleep command, the processing module 122 outputs a first shutdown control signal to the sending module 124 in response to the sleep command, so that the sending module 124 transmits the first shutdown control signal to the receiving module 114 in the display screen 11, and the receiving module 114 controls the display module 111 to power down.
The processing module 122 is further configured to output a second turn-off control signal to the second switch module 123 after the display module 111 is powered off, so as to control the second switch module 123 to turn off, and further turn off a power supply path of the receiving module 114, so that the receiving module 114 is powered off.
The processing module 122 may include a main control unit 1221, a memory 1222, an external memory 1223, peripheral circuits, and the like. The main control unit 1221 and the main control unit 1221 are both connected to the second power management module 121, and the memory 1222 is further connected between the main control unit 1221 and the external storage 1223.
The memory 1222 is a Random Access Memory (RAM), the memory 1222 is used for storing operation data of the main control unit 1221, and the specific type of the memory 1222 may be set according to actual requirements, which is not particularly limited herein.
The external memory 1223 is used to store various application data of the display control apparatus 12. The external storage 1223 exchanges data with the main control unit 1221 through the memory 1222. The external storage 1223 may be, for example, a hard disk, an optical disk, a magnetic tape, or the like, and the type of the external storage 1223 is not particularly limited.
The peripheral circuit may include, but is not limited to, an image processing chip, a network signal conversion chip, an HDMI port switching chip, and the like.
The main control unit 1221 is configured to send a second switch control signal to the second switch module 123 or send a display control signal to the sending module 124 based on the received instruction. For example, when receiving the sleep command, the main control unit 1221 may first send a first turn-off control signal to the sending module 124, and then send a second turn-off control signal to the second switch module 123. When receiving the display instruction, the main control unit 1221 may obtain the content to be displayed, and send the content to be displayed to the sending module 124. In practical applications, the main control unit 1221 may be an advanced reduced instruction set machine (advanced RISC machines, ARM).
The main control unit 1221 may include a power management chip, a control chip, a Graphics Processing Unit (GPU), a Video Out Processor (VOP), and the like (not shown). The power management chip is connected to the second power management module 121 and the control chip, and the GPU and the VOP are both connected to the control chip. By way of example, and not limitation, the control chip may be a Central Processing Unit (CPU).
Based on this, the processing module 122 is further configured to control all the elements of the display control device 12 except the memory 1222, the second power management module 121, and the power management chip in the main control unit 1221 to be powered down after the receiving module 114 is powered down.
The second switch module 123 is connected to the receiving module 114 in the display screen 11, and the second switch module 123 is configured to control on/off of a power supply path of the receiving module 114. The power supply path of the receiving module 114 refers to a path between the second power management module 121 and the receiving module 114.
Specifically, the second switch module 123 is configured to be turned on when receiving the second on control signal from the processing module 122, so as to turn on the power supply path of the receiving module 114, so that the second power management module 121 can supply power to the receiving module 114 through the power supply path of the receiving module 114, and further, the receiving module 114 can operate normally.
The second switch module 123 is further configured to switch off when receiving the second off control signal from the processing module 122, so as to cut off a power supply path of the receiving module 114, so that the second power management module 121 cannot supply power to the receiving module 114, and further power down the receiving module 114, where the receiving module 114 stops operating.
The sending module 124 is connected to the receiving module 114, and the sending module 124 is configured to receive the content to be displayed from the processing module 122, convert the content to be displayed into a display signal that can be recognized by the receiving module 114, and then send the display signal to the receiving module 114.
The sending module 124 is further configured to receive the first switch control signal from the processing module 122, and transmit the first switch control signal to the receiving module 114, so that the receiving module 114 performs on-off control on the first switch module 113 based on the first switch control signal.
In practical applications, the sending module 124 may be a sending card.
In order to reduce power consumption of the display system in the sleep state, an embodiment of the present application further provides a display control method applied to the display system, where an execution main body of the display control method may be the display control device 12 in the embodiment corresponding to fig. 1, and specifically may be the main control unit 1221 in the display control device 12. In practical applications, the display control device 12 may be configured with an object script file, and the object script file describes the display control method provided in the embodiment of the present application, so that the display control device 12 executes the object script file when it needs to be in a standby state, and further executes each step in the display control method provided in the embodiment of the present application.
Referring to fig. 2, fig. 2 is a schematic flowchart of a display control method according to an embodiment of the present disclosure, as shown in fig. 2, the display control method may include steps S21 to S25, which are detailed as follows:
s21: and responding to the sleep instruction, and outputting a first turn-off control signal to a receiving module in the display screen.
When the display control apparatus 12 operates normally, if a sleep command is received, the display control apparatus outputs a first shutdown control signal to the receiving module 114 in the display screen 11 in response to the sleep command. The first off control signal is used to instruct the receiving module 114 in the display screen 11 to control the power-down of the display module 111 in the display screen 11.
After receiving the first off control signal from the display control apparatus 12, the receiving module 114 may cut off the power supply path of the display module 111, so as to power down the display module 111.
In practical applications, the receiving module 114 may cut off the power supply path of the display module 111 by controlling the first switching module 113 connected in the power supply path of the display module 111 to be turned off.
It is to be understood that the display control apparatus 12 may also store the current program operating state in the memory when receiving the hibernation instruction.
Currently refers to the time at which the display control apparatus 12 receives the sleep instruction. The current program operating state may be described by displaying a position to which the program currently operating by the control apparatus 12 is operated.
In this embodiment, when the display control device 12 receives the hibernation instruction, the purpose of storing the current program running state in the memory is to enable the program in the display control device 12 to be quickly restored to the state before the device hibernation when the display control device 12 is restored from the hibernation state to the normal running state.
In practical applications, the sleep command may be triggered by the user operating a power button on the display control device 12; or may be transmitted from the remote controller to the display control apparatus 12 after the user operates a power key on the remote controller. The embodiment of the present application does not particularly limit the triggering manner of the sleep command.
S22: and after the display module is powered off, controlling the receiving module to be powered off.
Since the on/off of the power supply path of the display module 111 is controlled by the receiving module 114, the receiving module 114 needs to be powered off after the display module 111 is powered off, otherwise, the on/off of the power supply path of the display module 111 cannot be controlled.
The manner in which the display control device 12 determines that the display module 111 has been powered down may include, but is not limited to: after a preset time period after the first off control signal is output, determining that the display module 111 is powered off; alternatively, it is determined that the display module 111 is powered down when the first feedback signal from the receiving module 114 is received.
The preset time period may be set according to actual requirements, and is not particularly limited herein. For example, the preset time period may be 1 second.
The first feedback signal may be a signal that the receiving module 114 feeds back to the display control apparatus 12 to indicate that the display module 111 has been powered off after cutting off the power supply path of the display module 111 based on the first off control signal. The specific representation of the first feedback signal may be set according to actual requirements, and is not particularly limited herein.
Based on this, the display control apparatus 12 may control the power-down of the reception module 114 after determining that the display module 111 has been powered down. It is understood that the display control device 112 may also control the power down of the receiving module 114 after a target period of time after the power down of the display module 111. The target duration may be set according to actual requirements, and is not particularly limited herein.
The way in which the display control device 12 controls the receiving module to power down may be:
the processing module 112 outputs a second turn-off control signal to the second switch module 123 connected in the power supply path of the receiving module 114, so as to control the second switch module 123 to turn off, and further cut off the power supply path of the receiving module 114, so that the receiving module 114 is powered off.
S23: and after the receiving module is powered off, all elements except the memory, the second power management module and the power management chip in the main control unit in the display control equipment are controlled to be powered off.
Since the sending module 124 in the display control device 12 is used to provide the display control signal for the receiving module 114 in the display screen 11, the sending module 124 needs to be powered down after the receiving module 114 is powered down. The non-core element of the processing module 122 in the display control device 12 may be powered off simultaneously with the sending module 124, or may be powered off after the sending module 124 is powered off, which may be specifically set according to actual requirements, and the power-off time of the non-core element of the processing module 122 is not particularly limited herein.
The core components of the processing module 122 include a memory 1222 and a power management chip in the main control unit 1221. Correspondingly, the non-core components of the processing module 122 include all components except the memory 1222 and the power management chip in the main control unit 1221, specifically, the non-core components may include the external memory 1223, and may further include a control chip, a GPU, a VOP, and the like in the main control unit 1221.
Based on this, the step of controlling, by the display control device 12, all elements of the display control device except the memory, the second power management module, and the power management chip in the main control unit to be powered off may include:
control the transmit module 124 to power down and control the non-core components of the processing module 122 to power down.
The step of controlling the non-core elements of the processing module 124 to power down may include:
control the external memory 1223 in the processing module 122 to power down;
controlling the power down of a control chip, a graphics processor and a video output processor in the main control unit 1221 in the processing module 122;
controlling peripheral circuits in the processing module 122 to power down.
It should be noted that, when all the elements of the display control device 12 except the memory 1222, the second power management module 121, and the power management chip of the main control unit 1221 are powered down, the memory 1222 enters the self-refresh mode. The self-refresh mode is a mode in which the memory 1222 operates autonomously without clock input, and in which the memory 1222 can guarantee that stored data is not lost.
In addition, when the display control device 12 receives the sleep-wake-up instruction, all the components of the display control device 12 except for the memory 1222, the second power management module 121, and the power management chip in the main control unit 1221, the receiving module 114 in the display screen 11, and the display module 111 in the display screen 11 may be sequentially controlled to be powered on. Meanwhile, the display control apparatus 12 may also acquire the stored program operation state from the memory 1222 and continue to operate the corresponding program based on the program operation state.
The sleep wakeup instruction refers to an instruction for causing the display control apparatus 12 to enter a normal operation state from a sleep state. The sleep wake-up command may be triggered by the user operating a power key on the display control device 12, or may be sent to the display control device 12 by the remote controller after the user operates the power key on the remote controller.
As can be seen from the above, in the display control method provided in the embodiment of the present application, when the display control device receives the sleep instruction, the display control device first outputs the first turn-off control signal to the receiving module in the display screen, so that the receiving module controls the display module in the display screen to power down, and then the display control device controls the receiving module to power down, so that the power down of the entire display screen can be controlled, and the display screen does not have power consumption to output; after the display screen is powered off, the display control equipment also controls all elements except the memory, the second power management module and the power management chip in the main control unit to be powered off, so that the power consumption of the display control equipment can be reduced; therefore, by reducing the power consumption of the display screen and the display control device during the sleep, the power consumption of the whole display system during the sleep can be reduced.
In addition, when the display control device receives the sleep instruction, the current program running state is stored in the memory, so that conditions are created for the display control device to quickly recover from the sleep state to the normal running state, and the display control device in the sleep state can be quickly awakened.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
Based on the display control method provided by the above embodiment, an embodiment of the display control apparatus implementing the above method embodiment is further provided in the embodiment of the present invention. The display control device may be a small computer device, such as a web tv box. The display control device may be loaded with a Linux operating system, an Android (Android) operating system, or the like. Based on this, various Applications (APPs) adapted to the operating system, such as a video playback APP, may be installed in the display control apparatus.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a display control apparatus according to an embodiment of the present disclosure. For convenience of explanation, only the portions related to the present embodiment are shown. As shown in fig. 3, the display control device 12 may be connected with the display screen 11 and the power supply device 13. The display control apparatus 12 may include a second power management module 121, a processing module 122, a second switching module 123, and a transmitting module 124.
The second power management module 121 is connected to the power device 13, the processing module 122, the second switch module 123 and the sending module 124, and the second power management module 121 is configured to convert a dc signal output by the power device 13 into a dc signal required by the operation of the processing module 122, the receiving module 112 and the sending module 124, so as to supply power to the processing module 122, the receiving module 112 and the sending module 124.
By way of example and not limitation, the second power management module 121 may include a direct current-direct current (DC-DC) converter, and a specific structure of the DC-DC converter may be set according to actual requirements, which is not particularly limited herein.
The processing module 122 is connected to a second switching module 123 and a transmitting module 124. The processing module 122 is configured to, when receiving a display instruction (e.g., a video playing instruction), obtain content to be displayed, and send the content to be displayed to the sending module 124. For example, the processing module 122 may obtain the content to be displayed from a video website or a local storage unit, and the obtaining manner of the content to be displayed is not particularly limited herein.
The processing module 122 is further configured to output a first switch control signal to the sending module 124 based on the received device state control instruction, and output a second switch control signal to the second switch module 123.
The device state control instruction may include a power-on instruction, a sleep instruction, or a sleep wake-up instruction. The second switch control signal is used to control on/off of the second switch module 123, and the second switch control signal may include a second on control signal and a second off control signal, where the second on control signal is used to control the second switch module 123 to be on, and the second off control signal is used to control the second switch module 123 to be off.
Specifically, when receiving the sleep command, the processing module 122 outputs a first shutdown control signal to the sending module 124 in response to the sleep command, so that the sending module 124 transmits the first shutdown control signal to the receiving module 114 in the display screen 11, and the receiving module 114 controls the display module 111 to power down.
The processing module 122 is further configured to output a second turn-off control signal to the second switch module 123 after the display module 111 is powered off, so as to control the second switch module 123 to turn off, and further turn off a power supply path of the receiving module 114, so that the receiving module 114 is powered off.
The processing module 122 may include a main control unit 1221, a memory 1222, an external memory 1223, peripheral circuits, and the like. The main control unit 1221 and the main control unit 1221 are both connected to the second power management module 121, and the memory 1222 is further connected between the main control unit 1221 and the external storage 1223.
The memory 1222 is a Random Access Memory (RAM), the memory 1222 is used for storing operation data of the main control unit 1221, and the specific type of the memory 1222 may be set according to actual requirements, which is not particularly limited herein.
The external memory 1223 is used to store various application data of the display control apparatus 12. The external storage 1223 exchanges data with the main control unit 1221 through the memory 1222. The external storage 1223 may be, for example, a hard disk, an optical disk, a magnetic tape, or the like, and the type of the external storage 1223 is not particularly limited.
The peripheral circuit may include, but is not limited to, an image processing chip, a network signal conversion chip, an HDMI port switching chip, and the like.
The main control unit 1221 is configured to send a second switch control signal to the second switch module 123 or send a display control signal to the sending module 124 based on the received instruction. For example, when receiving the sleep command, the main control unit 1221 may first send a first shutdown control signal to the sending module 124, and then send a second shutdown control signal to the second switch module 123. When receiving the display instruction, the main control unit 1221 may obtain the content to be displayed, and send the content to be displayed to the sending module 124. In practical applications, the main control unit 1221 may be an advanced reduced instruction set machine (advanced RISC machines, ARM).
The main control unit 1221 may include a power management chip, a control chip, a Graphics Processing Unit (GPU), a Video Out Processor (VOP), and the like (not shown). The power management chip is connected to the second power management module 121 and the control chip, and the GPU and the VOP are both connected to the control chip. By way of example, and not limitation, the control chip may be a Central Processing Unit (CPU).
Based on this, the processing module 122 is further configured to control all the elements of the display control device 12 except the memory 1222, the second power management module 121, and the power management chip in the main control unit 1221 to be powered down after the receiving module 114 is powered down.
The second switch module 123 is connected to the receiving module 114 in the display screen 11, and the second switch module 123 is configured to control on/off of a power supply path of the receiving module 114. The power supply path of the receiving module 114 refers to a path between the second power management module 121 and the receiving module 114.
Specifically, the second switch module 123 is configured to be turned on when receiving the second on control signal from the processing module 122, so as to turn on the power supply path of the receiving module 114, so that the second power management module 121 can supply power to the receiving module 114 through the power supply path of the receiving module 114, and further, the receiving module 114 can operate normally.
The second switch module 123 is further configured to switch off when receiving the second off control signal from the processing module 122, so as to cut off a power supply path of the receiving module 114, so that the second power management module 121 cannot supply power to the receiving module 114, and further power down the receiving module 114, where the receiving module 114 stops operating.
The sending module 124 is connected to the receiving module 114, and the sending module 124 is configured to receive the content to be displayed from the processing module 122, convert the content to be displayed into a display signal that can be recognized by the receiving module 114, and then send the display signal to the receiving module 114.
The sending module 124 is further configured to receive the first switch control signal from the processing module 122, and transmit the first switch control signal to the receiving module 114, so that the receiving module 114 performs on-off control on the first switch module 113 based on the first switch control signal.
In practical applications, the sending module 124 may be a sending card.
The embodiment of the application also provides a display screen. Referring to fig. 4, fig. 4 is a schematic structural diagram of a display screen according to an embodiment of the present disclosure. For convenience of explanation, only the portions related to the present embodiment are shown. As shown in fig. 4, the display screen 11 may be connected with the display control device 12 and the power supply device 13. The display screen 11 may include a display module 111, a first power management module 112, a first switch module 113, and a receiving module 114.
The display module 111 is also a lamp panel, and the display module 111 may include a display array formed by a plurality of lamp beads and a driving chip (not shown) for driving each lamp bead. Each lamp bead can correspond to one pixel of the display screen 111. By way of example and not limitation, the lamp beads may be Light Emitting Diodes (LEDs), that is, the display module 111 may be an LED lamp panel.
The first power management module 112 is connected to the power device 13, and the first power management module 112 is configured to convert the dc signal output by the power device 13 into a dc signal required by the operation of the display module 111, so as to supply power to the display module 111. By way of example and not limitation, the first power management module 112 may include a direct current-direct current (DC-DC) converter, and a specific structure of the DC-DC converter may be set according to actual requirements, which is not particularly limited herein.
The first switch module 113 is connected between the first power management module 112 and the display module 111, and the first switch module 113 is configured to control on/off of a power supply path of the display module 111.
It is understood that the power supply path of the display module 111 is a path between the first power management module 112 and the display module 111.
Specifically, the first switch module 113 is configured to switch on a power supply path of the display module 111 when being turned on, so that the first power management module 112 can supply power to the display module 111 through the power supply path of the display module 111, and further the display module 111 can normally operate; when the first switch module 113 is turned off, the power supply path of the display module 111 is cut off, so that the first power management module 112 cannot supply power to the display module 111, and the display module 11 is powered off, at this time, the display module 11 stops operating.
For example, the first switch module 113 may be a switch tube, a relay, a switch circuit, or the like. The specific structure of the first switch module 113 may be set according to actual requirements, and is not particularly limited herein.
The receiving module 114 is connected to the display control device 12, the first switch module 113 and the display module 111, and the receiving module 114 is configured to receive the display control signal from the display control device 12.
The display control signal may include a display signal and a first switch control signal.
The display signal is a signal (e.g., an HDMI signal) recognizable by the receiving module 114 obtained by converting the content to be displayed, that is, the display signal may be used to describe the content to be displayed.
The first switch control signal is used for controlling the on/off of the first switch module 113. Specifically, the first switch control signal may include a first on control signal and a first off control signal, and for example, the first on control signal may be a high level signal and the first off control signal may be a low level signal.
Based on this, the receiving module 114 is further configured to convert the display signal into a display driving signal, and send the display driving signal to the display module 111, so as to drive the display module 111 to display the content to be displayed, which is described by the display signal. In addition, the receiving module 114 is further configured to control on/off of the first switch module 113 based on the first switch control signal. Specifically, when the first switch control signal is a first turn-on control signal, the receiving module 114 is configured to control the first switch module 113 to turn on based on the first turn-on control signal; when the first switch control signal is the first off control signal, the receiving module 114 controls the first switch module 113 to turn off based on the first off control signal.
In practical applications, the receiving module 114 may be a receiving card.
It should be noted that, for the information interaction, the execution process, and other contents between the above units, the specific functions and the technical effects brought by the method embodiments of the present application are based on the same concept, and specific reference may be made to the method embodiment part, which is not described herein again.
The embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, and the computer program, when executed by a processor, can implement the steps in the above method embodiments.
Embodiments of the present application provide a computer program product, which, when running on a display control apparatus, causes the display control apparatus to implement the steps in the above-described method embodiments.
In the above embodiments, the description of each embodiment has its own emphasis, and parts that are not described or illustrated in a certain embodiment may refer to the description of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
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. A display control method, comprising:
responding to a sleep instruction, and outputting a first turn-off control signal to a receiving module in a display screen; the first turn-off control signal is used for indicating the receiving module to control the power-off of a display module in the display screen;
after the display module is powered off, controlling the receiving module to be powered off;
and after the receiving module is powered off, controlling all elements except the memory, the second power management module and the power management chip in the main control unit in the display control equipment to be powered off.
2. The method according to claim 1, wherein the controlling the power-down of the receiving module after the power-down of the display module comprises:
and after the preset time length after the first turn-off control signal is output, controlling the receiving module to be powered off.
3. The method according to claim 1, wherein the controlling the power-down of the receiving module after the power-down of the display module comprises:
controlling the receiving module to power down in response to a first feedback signal from the receiving module; the first feedback signal is used for indicating that the display module is powered down.
4. The display control method according to claim 1, wherein the controlling the receiving module to power down comprises:
sending a second turn-off control signal to a second switch module through the processing module; the second switch module is connected in a power supply path of the receiving module, and the second turn-off control signal is used for controlling the second switch module to be turned off.
5. The method according to claim 1, wherein controlling all elements of the display control device except the memory, the second power management module, and the power management chip in the main control unit to be powered down comprises:
controlling a sending module in the display control equipment to be powered off, and controlling a non-core element of a processing module in the display control equipment to be powered off; the non-core element comprises other elements except the memory and a power management chip of the main control unit.
6. The display control method according to any one of claims 1 to 5, characterized by further comprising:
and responding to the sleep instruction, and storing the current program running state in the memory.
7. The display control method according to any one of claims 1 to 5, characterized by further comprising:
and when a sleep awakening instruction is received, sequentially controlling all the elements, the receiving module and the display module to be powered on, and continuously running the corresponding programs based on the program running states stored in the memory.
8. A display screen is characterized by comprising a first power management module, a first switch module, a display module and a receiving module;
the first power supply management module is used for supplying power to the display module;
the first switch module is connected between the first power management module and the display module and is used for controlling the on-off of a power supply path of the display module;
the receiving module is connected with the display control device, the first switch module and the display module, and the receiving module is used for responding to a first turn-off control signal from the display control device and controlling the first switch module to be switched off so as to cut off a power supply path of the display module.
9. The display control equipment is characterized by comprising a second power management module, a processing module, a second switch module and a sending module;
the second power management module is connected with the processing module, the second switch module and the sending module, and the second power management module is used for supplying power to the processing module, the second switch module and the sending module;
the processing module is connected with the second switch module and the sending module, and is used for responding to a sleep instruction and outputting a first turn-off control signal to the sending module; the second switch module is used for outputting a second turn-off control signal to the second switch module after the display module in the display screen is powered off; the power supply control module is used for controlling all elements except the memory, the second power supply management module and the power supply management chip in the main control unit in the display control equipment to be powered off after the receiving module in the display screen is powered off;
the sending module is connected with the processing module and is used for sending the first turn-off control signal to a receiving module in a display screen; the first turn-off control signal is used for indicating the receiving module to control the display module to be powered off;
the second switch module is connected in a power supply path of the receiving module and is used for controlling the receiving module to be powered off based on the second turn-off control signal.
10. A display system comprising a display screen according to claim 8 and a display control device according to claim 9; the display control device is connected with the display screen.
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