CN110111730B - Display screen dynamic control system and display screen - Google Patents
Display screen dynamic control system and display screen Download PDFInfo
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- CN110111730B CN110111730B CN201910543691.2A CN201910543691A CN110111730B CN 110111730 B CN110111730 B CN 110111730B CN 201910543691 A CN201910543691 A CN 201910543691A CN 110111730 B CN110111730 B CN 110111730B
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- 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
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention relates to a display screen dynamic control system and a display screen, wherein the system comprises: a receiving card and a first voltage-stabilizing power supply module; the receiving card is provided with a first pin, the first pin is connected with the enabling end of the first voltage-stabilizing power supply module, and the power supply output end of the first voltage-stabilizing power supply module is used for being connected with the first display module; the receiving card is used for detecting whether a luminous signal for driving the first display module exists in the display data after receiving the display data; when the display data does not have a luminous signal for driving the first display module, a first control signal is sent to the enabling end of the first voltage-stabilizing power supply module through the first pin, so that the first voltage-stabilizing power supply module stops working, standby loss of the first voltage-stabilizing power supply module and the first display module is reduced, waste of electric energy is reduced, and the first voltage-stabilizing power supply module is prevented from rising in box body temperature in a standby state.
Description
Technical Field
The invention relates to the technical field of display screens, in particular to a display screen dynamic control system and a display screen.
Background
With the high-speed development of LED (Light Emitting Diode) display technology, large-scale integrated circuits and computer technology, LED display screens have become an emerging display medium, and compared with the traditional display media such as multi-color neon lamps, pixel tube tv walls, four-color magnetic turning plates, etc., LED display screens are widely applied to various industries with the advantages of high brightness, good dynamic image display effect, low failure, low energy consumption, long service life, various display contents, rich display modes, high cost performance, etc.
As is well known, the current LED display large screen system is formed by splicing small boxes, and the power supply mode thereof is to supply power for each row, that is, each row is powered by one high-voltage AC (Alternating Current ). That is, the box is supplied with power at all times, and there is standby power consumption even if display is not required. For example, a 2K screen is various in video sources received in practical application, and cannot guarantee full use of a large screen, and a situation that a certain corner box is not displayed often occurs, and due to standby power consumption of the box without display, the standby power consumption of the box is about 30W, so that not only is electric energy wasted, but also the box temperature is increased, and the operation is inconvenient when the display module is maintained.
Disclosure of Invention
Based on this, it is necessary to provide a display screen dynamic control system and a display screen.
In one embodiment, a display screen dynamic control system is characterized by comprising: a receiving card and a first voltage-stabilizing power supply module; the receiving card is provided with a first pin, the first pin is connected with the enabling end of the first voltage-stabilizing power supply module, and the power supply output end of the first voltage-stabilizing power supply module is used for being connected with the first display module; the receiving card is used for detecting whether a luminous signal for driving the first display module exists in the display data after receiving the display data; when the display data does not have a light-emitting signal for driving the first display module, a first control signal is sent to the enabling end of the first voltage-stabilizing power supply module through the first pin, so that the first voltage-stabilizing power supply module stops working.
In one embodiment, when the receiving card detects that the display data has a light-emitting signal for driving the first display module, a second control signal is sent to the enabling end of the first regulated power supply module through the first pin, so that the first regulated power supply module works.
In one embodiment, the first control signal is a low level signal and the second control signal is a high level signal.
In one embodiment, the display screen dynamic control system further includes a transmitting card and a second voltage-stabilizing power supply module, the receiving card has a second pin, the second pin is connected with an enabling end of the second voltage-stabilizing power supply module, and a power supply output end of the second voltage-stabilizing power supply module is used for being connected with the second display module; before the sending card is used for sending display data to the receiving card, detecting whether a light-emitting signal for driving the second display module exists in the display data, and sending a first trigger signal to the receiving card when the light-emitting signal for driving the second display module does not exist in the display data; and the receiving card is used for sending the first control signal to the enabling end of the second voltage-stabilizing power supply module through the second pin when the first trigger signal is received, so that the second voltage-stabilizing power supply module stops working.
In one embodiment, the display screen dynamic control system further includes a second voltage-stabilizing power supply module, a third voltage-stabilizing power supply module and a transmitting card, the transmitting card is connected with the receiving card, the receiving card has a third pin, the third pin is connected with an enabling end of the third voltage-stabilizing power supply module, a power supply output end of the third voltage-stabilizing power supply module is respectively connected with a power supply end of the first voltage-stabilizing power supply module and a power supply end of the second voltage-stabilizing power supply module, and a power supply output end of the second voltage-stabilizing power supply module is used for being connected with the second display module; before the sending card is used for sending the display data to the receiving card, detecting whether a light-emitting signal for driving the second display module exists in the display data, and sending a first trigger signal to the receiving card when the light-emitting signal for driving the second display module does not exist in the display data; the receiving card is used for receiving the first trigger signal and sending a third control signal to the enabling end of the third voltage-stabilizing power supply module through the third pin when detecting that the luminous signal for driving the first display module does not exist, so that the third voltage-stabilizing power supply module stops working.
In one embodiment, the receiving card is further configured to stop sending the display data when detecting that no light emitting signal exists in the display data.
In one embodiment, the receiving card is further configured to send, when receiving the second trigger signal, a first control signal to an enabling end of the first regulated power supply module through the first pin, so that the first regulated power supply module stops working.
In one embodiment, a display screen includes a first display module and the display screen dynamic control system described in any one of the above embodiments, where a power supply output end of the first voltage-stabilizing power supply module is connected to the first display module.
In one embodiment, the first display module includes a first lamp bead and a first driving module, a power supply output end of the first voltage-stabilizing power supply module is connected with a power supply input end of the first driving module, and an output end of the first driving module is connected with the first lamp bead.
In one embodiment, the first display module includes at least one first lamp bead and a first driving module, the light emitting color of each first lamp bead is the same, the power supply output end of the first voltage-stabilizing power supply module is connected with the first driving module, and the output end of the first driving module is connected with each first lamp bead respectively.
According to the display screen dynamic control system, after the receiving card receives the display data, whether the luminous signals of the first display module exist in the display data or not is detected, namely, whether the first display module needs to be luminous in the display data is detected, when the fact that the first display module does not need to be luminous is detected, the first pin of the receiving card outputs the first control signal, so that the first voltage-stabilizing power supply module is powered off, standby loss of the first voltage-stabilizing power supply module is reduced, waste of electric energy is reduced, the situation that the box body temperature is increased due to the fact that the first voltage-stabilizing power supply module is in a standby state is avoided, and the enabling end of the voltage-stabilizing power supply module is high in response speed, and even if the display screen displays each frame of picture, signals received by the enabling end of the voltage-stabilizing power supply module are different, normal display of the display screen cannot be affected.
Drawings
FIG. 1 is a block diagram of a display screen dynamic control system in one embodiment;
FIG. 2 is a schematic circuit diagram of a display screen dynamic control system in one embodiment;
FIG. 3 is a block diagram of a display screen dynamic control system in one embodiment;
FIG. 4 is a block diagram of a display screen dynamic control system in another embodiment;
FIG. 5 is a block diagram of a display screen in one embodiment;
Fig. 6 is a block diagram of a display screen in another embodiment.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
For example, there is provided a display screen dynamic control system including: a receiving card and a first voltage-stabilizing power supply module; the receiving card is provided with a first pin, the first pin is connected with the enabling end of the first voltage-stabilizing power supply module, and the power supply output end of the first voltage-stabilizing power supply module is used for being connected with the first display module; the receiving card is used for detecting whether a luminous signal for driving the first display module exists in the display data after receiving the display data; when the display data does not have a light-emitting signal for driving the first display module, a first control signal is sent to the enabling end of the first voltage-stabilizing power supply module through the first pin, so that the first voltage-stabilizing power supply module stops working.
According to the display screen dynamic control system, after the receiving card receives the display data, whether the luminous signals of the first display module exist in the display data or not is detected, namely, whether the first display module in the display data needs to be luminous is detected, when the fact that the first display module does not need to be luminous is detected, the first pin of the receiving card outputs the first control signals, so that the first voltage-stabilizing power supply module is powered off, standby loss of the first voltage-stabilizing power supply module and the first display module is reduced, waste of electric energy is reduced, the situation that the temperature of the box body is increased due to the fact that the first voltage-stabilizing power supply module is in a standby state is avoided, and the response speed of the enabling end of the voltage-stabilizing power supply module is high is avoided, and even if the display screen displays each frame of pictures, the signals received by the enabling end of the voltage-stabilizing power supply module are different, and normal display of the display screen cannot be influenced.
In one embodiment, referring to FIG. 1, a display screen dynamic control system 10 is provided, comprising: the receiving card 100 and the first regulated power supply module 210; the receiving card has a first pin, the first pin is connected with the enabling end of the first regulated power supply module 210, and the power supply output end of the first regulated power supply module 210 is used for being connected with the first display module 310; the receiving card 100 is configured to detect whether a light emitting signal for driving the first display module 310 exists in the display data after receiving the display data; when the display data does not have the light-emitting signal for driving the first display module 310, a first control signal is sent to the enabling end of the first regulated power supply module 210 through the first pin, so that the first regulated power supply module 210 stops working.
It should be noted that the display screen is an LED display screen, the receiving card is an LED receiving card, which is also referred to as an LED control card, and the receiving card has a central processing unit, which is equivalent to an MCU (Microcontroller Unit, micro control unit) or FPGA (Field-Programmable Gate Array, field programmable gate array) chip, and has a function of analyzing and processing the received display data, specifically, the display data of the display screen are all sent to the receiving card, and the receiving card is used for receiving the display data, that is, the receiving card receives the picture data that needs to be displayed by the display screen, and sends the display data after being processed to the driving module of the display screen, that is, sends the display data to the first display module, so that the display screen displays according to the display data.
It should be understood that the receiving card is used for receiving display data, that is, the receiving card is used for receiving display data of each frame, and a frame is a single image picture of the minimum unit in the video animation, that is, a display picture, which corresponds to each frame of shots on the motion picture film. Specifically, one frame is a still picture, and successive frames form an animation, such as a television image, or the like. We will generally refer to the number of frames, simply the number of pictures transmitted in 1 second, and will also understand that the graphics processor can refresh several times per second, typically expressed in fps (Frames Per Second, frames per second transmitted). Each frame is a still image and displaying the frames in rapid succession creates motion artifacts. A high frame rate may result in a smoother, more realistic animation. The more frames per second (fps), the smoother the displayed motion. For an LED display screen, 30 frames per second, namely 30 frames per second, of display data are generally transmitted, so that the display screen can smooth pictures.
It can be understood that, the receiving card is configured to detect whether a light-emitting signal for driving the first display module exists in the display data after receiving the display data; when the display data does not have the light-emitting signal for driving the first display module, a first control signal is sent to the enabling end of the first regulated power supply module through the first pin, namely, the receiving card is used for detecting the display data of each frame after receiving the display data of each frame, judging whether the light-emitting signal for driving the first display module exists in the display data of each frame, when the light-emitting signal for driving the first display module does not exist in the display data of a certain frame, a first control signal is sent to the enabling end of the first regulated power supply module through the first pin in a display data display time period of the frame, so that the first regulated power supply module stops working, for example, after the receiving card receives the display data of the first frame, whether the light-emitting signal for driving the first display module exists in the display data of the first frame is detected, when the light-emitting signal for driving the first display module does not exist in the display data of the first frame, namely, the first frame or the receiving card receives the display data of the first frame, and the first regulated power supply module stops working through the first pin.
Specifically, the power supply output end of the first voltage-stabilizing power supply module is connected with the first display module, namely, the first voltage-stabilizing power supply module is used for supplying power to the first display module so as to enable the first display module to work. The receiving card is used for detecting whether the display data has a luminous signal for driving the first display module, namely, the receiving card is used for detecting whether the display data of each frame has a luminous signal for driving the first display module, namely, detecting whether the lamp beads in the first display module need to be lightened, and when detecting that the display data of a certain frame does not need the lamp beads in the first display module to be lightened, controlling the first voltage-stabilizing power supply module to stop working, and supplying power to the first display module without the need of supplying power to the first voltage-stabilizing power supply module and the first display module, thereby reducing the electric energy loss of the first voltage-stabilizing power supply module and the first display module in standby.
The receiving card sends a first control signal to the enabling end of the first regulated power supply module through the first pin, so that the first regulated power supply module stops working, specifically, the enabling end refers to a control signal input end, namely an enabling input end (enabling) which is one input pin of a chip or one input port of a circuit, the chip can only work when the pin is activated, that is to say, when the enabling end of the first regulated power supply module is activated, the first regulated power supply module works, in the embodiment, when the enabling end of the first regulated power supply module receives the first control signal, the first regulated power supply module stops working, and in one embodiment, when the first regulated power supply module is valid at a high level, the first control signal is a low level signal; in one embodiment, when the first regulated power supply module is active low, the first control signal is a high signal.
Specifically, the first voltage-stabilizing power supply module is a DC (direct current) power supply module, and is configured to output stable direct current to provide electric energy for the first display module, and in one embodiment, the first voltage-stabilizing power supply module uses a voltage-stabilizing power supply chip with a model TLV 62130. The response speed of the enabling end of the voltage-stabilizing power supply chip is in nanosecond level, the response speed is high, the display picture of a common display screen is usually 30 frames per second, namely, the transmission time of each frame is about 16.7 milliseconds, so that even if signals received by the enabling end of the voltage-stabilizing power supply module are different when the display screen displays each frame picture, the normal power supply of the display module is not influenced, namely, the normal display of the display screen is not influenced, in addition, when the receiving card detects display data, only the luminous signals in the display data are required to be detected, namely, only the judgment of 0 and 1 is required, the detection time is in nanosecond level, the abnormal display of the display screen can be ignored when the detection time is used, and therefore, the display screen dynamic control system of the display screen does not influence the normal display of the display screen.
It can be understood that the first display module includes a first driving module and a first lamp bead, an input end of the first driving module is connected with a power supply output end of the first voltage-stabilizing power supply module, an output end of the first driving module is connected with the first lamp bead, and the first driving module is used for driving the first lamp bead; for example, the first display module may refer to all the light beads of one box in the display screen and a driving module for driving the light beads, and specifically, the light beads may be light beads of one color of one box in the display screen, may be light beads of one module in the display screen, may be light beads of one color of one module in the display screen, and may also be light beads of one color of one module in the display screen. Specifically, the user can set according to actual requirements.
According to the display screen dynamic control system, after the receiving card receives the display data, whether the luminous signals of the first display module exist in the display data or not is detected, namely, whether the first display module needs to be luminous in the display data is detected, when the fact that the first display module does not need to be luminous is detected, the first pin of the receiving card outputs the first control signals, so that the first voltage-stabilizing power supply module is powered off, standby loss of the first voltage-stabilizing power supply module and the first display module is reduced, namely, electric energy loss of the display screen is reduced, waste of electric energy is reduced, the situation that the temperature of a box body is increased due to the fact that the first voltage-stabilizing power supply module is in a standby state is avoided, and even if the display screen displays each frame of pictures, signals received by the enabling ends of the voltage-stabilizing power supply module are different, normal display of the display screen cannot be influenced.
In order to enable the display screen to display normally, in one embodiment, when the receiving card detects that the display data has a light-emitting signal for driving the first display module, a second control signal is sent to an enabling end of the first regulated power supply module through the first pin, so that the first regulated power supply module works. Specifically, the receiving card needs to detect the display data of each frame, and judges whether the display data of each frame has a light-emitting signal for driving the first display module, namely, detects whether the display data needs to be lightened by the first display module, when detecting that the light-emitting signal for driving the first display module exists, the display picture of the frame needs to work by the first display module, and the receiving card sends a second control signal to the enabling end of the first voltage-stabilizing power supply module through a second pin so that the first voltage-stabilizing power supply module supplies power to the first display module, so that the display screen normally displays, namely, when the first control signal is a low-level signal, the second control signal is a high-level signal; when the first control signal is a high level signal, the second control signal is a low level signal; in one embodiment, when the first regulated power supply module is active high, the first control signal is a high signal; in one embodiment, when the first regulated power supply module is active low, the first control signal is a low signal. In one embodiment, the first control signal is a low level signal and the second control signal is a high level signal.
In one embodiment, referring to fig. 2, the first regulated power supply module 210 includes a first regulated power supply chip U1 and a surrounding circuit, specifically, a power supply end of the first regulated power supply chip U1 is connected to a power supply, an enable end of the first regulated power supply chip is connected to a first pin of the receiving card, a power supply output end of the first regulated power supply chip is connected to the first display module, specifically, an enable end of the first regulated power supply chip, that is, an EN pin of the first regulated power supply chip, and the first regulated power supply chip is configured to make the first regulated power supply chip operate according to a control signal sent by the receiving card, so as to reduce power loss of the first regulated power supply chip when the display screen is standby.
In one embodiment, referring to fig. 3, the display screen dynamic control system 10 further includes a transmitting card 400 and a second regulated power supply module 220, the receiving card has a second pin, the second pin is connected to the enable end of the second regulated power supply module 220, and the power supply output end of the second regulated power supply module is used to connect to the second display module 320; before the sending card is used for sending display data to the receiving card, detecting whether a light-emitting signal for driving the second display module exists in the display data, and sending a first trigger signal to the receiving card when the light-emitting signal for driving the second display module does not exist in the display data; and the receiving card is used for sending the first control signal to the enabling end of the second voltage-stabilizing power supply module through the second pin when the first trigger signal is received, so that the second voltage-stabilizing power supply module stops working.
It should be noted that the transmitting card has a central processing unit, which is equivalent to an MCU (Microcontroller Unit, micro control unit) or FPGA (Field-Programmable Gate Array, field programmable gate array) chip, which has a function of analyzing and processing display data so that the display data can be detected.
It should be noted that, the transmitting card is configured to transmit display data to the receiving card, for example, the receiving card receives display data of a current display screen, and at this time, the transmitting card transmits display data of a display screen of a next frame to the receiving card, so that the receiving card can continuously receive the display data. Specifically, a receiving card is to receive display data of a box body or a plurality of display modules in a display screen, if the data are checked and judged by the receiving card, the receiving card is required to bear larger pressure, for example, a large-screen display system, the receiving card is required to receive light-emitting signals of more lamp beads, that is, the receiving card is required to detect for a relatively longer time, so that normal display of the display screen is possibly affected, the sending card is arranged to detect the display data before sending the display data to the receiving card, detect whether the display data have light-emitting signals for driving the second display module, generate the first trigger signal when the sending card detects that the display data do not have the light-emitting signals for driving the second display module, the first trigger signal is sent to the receiving card along with the display data, the receiving card is used to detect whether the first trigger signal is received when the receiving the display data, and enable the second power supply terminal to stop the voltage stabilizing control module through the second pin when the receiving card receives the first trigger signal; therefore, the sending card is matched with the receiving card to detect the display data, the burden of the receiving card is reduced, and accordingly detection efficiency can be improved, and the display screen can be better displayed normally. It should be understood that the detection principle of the sending card is the same as that of the receiving card, and in this embodiment, a description is omitted.
In one embodiment, the display data includes first display data and second display data, the first display data is used for driving the first display module, the second display data is used for driving the second display module, the sending card is used for detecting the second display data, the receiving card is used for detecting the first display data, the first display data does not have a luminous signal corresponding to the second display module, the second display data does not have a luminous signal corresponding to the first display module, even if the sending card detects a part of display data, the receiving card detects another part of display data, thereby avoiding the receiving card and the sending card from detecting the same display data, and further improving the detection efficiency.
In one embodiment, when the receiving card does not receive the first trigger signal, a second control signal is sent to the enabling end of the second regulated power supply module through the second pin, so that the second regulated power supply module works, specifically, the sending card needs to detect display data of each frame, and judges whether the display data of each frame has a light-emitting signal for driving the second display module, namely, whether the display data needs to be lightened or not is detected, when the light-emitting signal for driving the second display module is detected, the display picture of the frame needs to be worked by the second display module, so that when the receiving card receives the display data of the frame, the receiving card does not receive the first trigger signal, and sends the second control signal to the enabling end of the first regulated power supply module through the second pin, so that the second regulated power supply module supplies power to the first display module, and the display screen normally displays.
In one embodiment, when the transmitting card detects that the display data has a light-emitting signal for driving the second display module, a third trigger signal is transmitted to the receiving card, and when the receiving card is used for receiving the third trigger signal, the second control signal is transmitted to the enabling end of the second regulated power supply module through the second pin, so that the second regulated power supply module works. In an embodiment, the first trigger signal is a first control signal, the third trigger signal is a second control signal, and specifically, the receiving card is correspondingly connected with the sending card through a network cable, when the sending card sends the display data to the receiving card, the corresponding first control signal or the second control signal is sent to a second pin of the receiving card according to a detection result, so that the corresponding control signal is sent to the second regulated power supply module through the second pin of the receiving card, and the second regulated power supply module works or stops working, so that only simple signal transmission is needed, thereby further improving the detection efficiency of the receiving card.
In order to further reduce standby loss of the display screen, referring to fig. 4, in one embodiment, the display screen dynamic control system 10 further includes a second regulated power supply module 220, a third regulated power supply module 230, and a transmitting card 400, where the transmitting card 400 is connected to the receiving card 100, the receiving card has a third pin, the third pin is connected to an enabling end of the third regulated power supply module 230, a power supply output end of the third regulated power supply module 230 is respectively connected to a power supply end of the first regulated power supply module 210 and a power supply end of the second regulated power supply module 220, and a power supply output end of the second regulated power supply module 220 is used to be connected to the second display module 320; the transmitting card 400 is configured to detect whether a light emitting signal for driving the second display module 320 exists in the display data before the display data is transmitted to the receiving card 100, and transmit a first trigger signal to the receiving card 100 when the light emitting signal for driving the second display module 320 does not exist in the display data; the receiving card 100 is configured to receive the first trigger signal and send a third control signal to the enabling end of the third regulated power supply module 230 through the third pin when detecting that the light-emitting signal for driving the first display module 310 does not exist, so that the third regulated power supply module 230 stops working. Specifically, the power supply output end of the third regulated power supply module 230 is connected to the power supply end of the first regulated power supply module 210 and the power supply end of the second regulated power supply module 220, that is, the third regulated power supply module 230 is configured to provide power to the first regulated power supply module 210 and the second regulated power supply module 220.
It can be understood that the display screen is provided with a plurality of display modules, each display module is correspondingly connected with a voltage-stabilizing power supply module, and then a voltage-stabilizing power supply module is generally arranged for supplying power to the voltage-stabilizing power supply modules of the branches, so that when the fact that the display data do not have the luminous signals of the first display module and the second display module is detected, a third pin of the receiving card is used for sending a third control signal to the enabling end of the third voltage-stabilizing power supply module, so that the third voltage-stabilizing power supply module stops working, namely, when the fact that the first display module and the second display module do not need to be lightened is detected, the third voltage-stabilizing power supply module stops working, and the electric energy loss of the display screen is further reduced.
In one embodiment, when the receiving card does not receive the first trigger signal or has a light-emitting signal for driving the first display module, the fourth control signal is sent to the enabling end of the third regulated power supply module through the third pin, so that the third regulated power supply module works.
It should be noted that the third control signal and the fourth control signal are two opposite signals, i.e. when the third control signal is a low level signal, the fourth control signal is a high level signal; when the third control signal is a high level signal, the fourth control signal is a low level signal; in one embodiment, when the third regulated power supply module is active high, the third control signal is a high signal; in one embodiment, when the third regulated power supply module is active low, the third control signal is a low signal. In one embodiment, the third control signal is a low level signal and the fourth control signal is a high level signal.
In order to further reduce the power consumption of the display screen during standby, in one embodiment, the receiving card is further configured to stop sending the display data when detecting that no light emitting signal exists in the display data. Specifically, the display data includes, in addition to the light emission signals, i.e., R, G, B signals, light emission control signals such as: clock signal CLK, latch signal LAT, and row select signals a, B, C, etc. When the receiving card detects that the display data does not have the luminous signal, the receiving card stops sending the display data so as to further reduce the power consumption of the display screen.
In order to facilitate maintenance of the display module by the user, in one embodiment, the receiving card is further configured to send, when receiving the second trigger signal, a first control signal to the enabling end of the first regulated power supply module through the first pin, so that the first regulated power supply module stops working. Specifically, the second trigger signal may be sent through an external device, for example: keyboard, button etc. when the user needs to maintain first display module assembly, send the second trigger signal through external equipment, works as the receiving card receives when the second trigger signal, first pin output first control signal to make first steady voltage power supply module stop work, even first steady voltage power supply module stops supplying power to first display module assembly, need not to outage to whole display system, can effectively prevent the potential safety hazard that the hot plug brought, thereby be convenient for maintain to display module assembly.
In one embodiment, the first display module is a display circuit of a box body of the display screen, and includes all the lamp beads and the driving circuit of the box body, that is, the first voltage-stabilizing power supply module is used for supplying power to the display circuit of a box body of the display screen, the receiving card is used for detecting whether the display data has a light-emitting signal for driving the first display module, that is, detecting whether the box body needs to be lightened, and when the box body does not need to be lightened, the receiving card sends a first control signal to the first voltage-stabilizing power supply module through the first pin, so that the first voltage-stabilizing power supply module stops working, that is, the first voltage-stabilizing power supply module stops supplying power to the first display module. The display screen dynamic control system is suitable for displaying a large screen system, in particular to a box body for displaying corners in the large screen system.
In one embodiment, the first display module is a display module of a display screen, the receiving card is configured to detect whether the display data has a light-emitting signal for driving the first display module, that is, detect whether the display module needs to be lightened, and when the display module does not need to be lightened, the receiving card sends a first control signal to the first voltage-stabilizing power supply module through the first pin, so that the first voltage-stabilizing power supply module stops working, that is, the first voltage-stabilizing power supply module stops supplying power to the first display module. It should be noted that, a display screen is usually formed by splicing a plurality of display boxes, and a display box is formed by a plurality of modules, and the receiving card only needs to check whether the luminous signals of the corresponding display modules exist in the display data, so as to control the corresponding voltage-stabilizing power supply module to stop working.
In another embodiment, the first display module includes at least a first lamp bead and a driving module, a power supply output end of the first voltage-stabilizing power supply module is connected with a power supply input end of the first driving module, each first lamp bead is connected with an output end of the first driving module, and each first lamp bead has the same light emitting color, for example: the first lamp bead is a red lamp bead of the display screen; for example, the first lamp bead is the blue lamp bead of display screen, and for example, the first lamp bead is the green lamp bead of display screen, through adopting the lamp bead to the different colours of display screen to carry out the power supply in branch road, when the display screen does not need the lamp bead of a certain colour to shine, the steady voltage power supply module stop work that corresponds to further reduce the electric energy loss of display screen.
In one embodiment, the display screen dynamic control system includes at least one first voltage-stabilizing power supply module, the receiving card has at least one first pin, each enabling end of the first voltage-stabilizing power supply module is connected with one first pin in a one-to-one correspondence manner, a power supply output end of each first voltage-stabilizing power supply module is used for being connected with a first display module, the receiving card is used for detecting whether the display data has a light-emitting signal of the first display module, and when the display data does not have the light-emitting signal for driving the first display module, a first control signal is sent to the enabling end of the first voltage-stabilizing power supply module through the corresponding first pin so that the first voltage-stabilizing power supply module stops working.
In one embodiment, the display screen dynamic control system includes at least one second voltage-stabilizing power supply module, the receiving card has at least one second pin, an enabling end of each second voltage-stabilizing power supply module is connected with one second pin in a one-to-one correspondence manner, a power supply output end of each second voltage-stabilizing power supply module is connected with a second display module, the transmitting card is used for detecting whether a light-emitting signal for driving the second display module exists in the display data before the display data is transmitted to the receiving card, and when the light-emitting signal for driving the second display module does not exist in the display data, a first trigger signal is transmitted to the receiving card; and the receiving card is used for sending the first control signal to the enabling end of the second voltage-stabilizing power supply module through the second pin when the first trigger signal is received, so that the second voltage-stabilizing power supply module stops working.
In one embodiment, referring to fig. 5, a display screen 20 is provided, which includes a first display module 310 and the display screen dynamic control system described in any of the above embodiments, where the power supply output end 210 of the first regulated power supply module is connected to the first display module.
According to the display screen, after the receiving card receives the display data, whether the luminous signals of the first display module exist in the display data or not is detected, namely, the first display module in the display data is detected to be required to be luminous, when the first display module is detected to be not required to be luminous, the first pin of the receiving card outputs the first control signal, so that the first voltage-stabilizing power supply module is powered off, standby loss of the first voltage-stabilizing power supply module and the first display module is reduced, waste of electric energy is reduced, the situation that the temperature of a box body is increased due to the fact that the first voltage-stabilizing power supply module is in a standby state is avoided, and the response speed of the enabling end of the voltage-stabilizing power supply module is high, even if the display screen displays each frame of picture, signals received by the enabling end of the voltage-stabilizing power supply module are different, and normal display of the display screen cannot be affected.
In order to further reduce the power consumption of the display screen during standby, referring to fig. 6, in one embodiment, the first display module 310 includes a first lamp bead 311 and a first driving module 312, the power supply output end of the first regulated power supply module 210 is connected to the power supply input end of the first driving module 312, and the output end of the first driving module 312 is connected to the first lamp bead 311. Specifically, the first driving module 312 is configured to drive the first light beads 311 according to display data, and the first voltage-stabilizing power supply module 210 is configured to supply power to the first driving module 312, so that the first display module 310 corresponds to a module of the display box, that is, when the receiving card 100 detects that the display data does not have a light-emitting signal for driving the first light beads 311, a first control signal is sent to an enabling end of the first voltage-stabilizing power supply module 310 through the first pin, so that the first voltage-stabilizing power supply module 310 stops working, standby loss of the first voltage-stabilizing power supply module 210 is reduced, and meanwhile, the first driving module 312 is powered off, and standby loss of the first driving module 312 is reduced, thereby further reducing electric energy loss when the display screen 20 is in standby.
In one embodiment, the first display module includes at least one first lamp bead and a first driving module, the light emitting color of each first lamp bead is the same, the power supply output end of the first voltage-stabilizing power supply module is connected with the first driving module, and the output end of the first driving module is connected with each first lamp bead respectively. Specifically, the first light beads are one of red light beads, blue light beads and green light beads, the first driving module is used for driving each first light bead, namely the first driving module is only used for driving light beads with one color, that is to say, different driving modules are adopted for the light beads with different colors, it can be understood that shunt power is adopted for the light beads with different colors of the display screen, that is to say, each light bead with one driving module is adopted for driving the light beads with different colors, when the light beads with certain color in the display screen do not need to emit light, the receiving card sends out a first control signal to control the corresponding voltage-stabilizing power supply module to stop working, standby power consumption of the voltage-stabilizing power supply module and the driving module is reduced, standby power consumption of the display screen is reduced to the greatest extent, for example, the first driving module is applied to a traffic induction screen, only one of the red light beads or the green light beads is required to be lightened, for example, the green light beads with a bottom part and the blue light beads do not need to be lightened, and the red bottom credentials are displayed; for example, the display screen includes three first display modules, corresponds red lamp pearl, blue lamp pearl and green lamp pearl respectively, and the quantity of first steady voltage power supply module has three, and the power supply output of each first steady voltage power supply module corresponds with a first display module, and the receiving card has three first pin, and each first pin is connected with steady voltage power supply module's enabling end, and when the receiving card detects the lamp pearl that need not a certain colour and shines, sends first control signal to corresponding first steady voltage power supply module through corresponding first pin to make first steady voltage power supply module stop work, reduce first steady voltage power supply module's standby loss, reduce the power consumption of display screen promptly.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (13)
1. A display screen dynamic control system, comprising: the system comprises a receiving card, a first voltage-stabilizing power supply module, a transmitting card and a second voltage-stabilizing power supply module; the receiving card is an LED receiving card;
the receiving card is provided with a first pin, the first pin is connected with the enabling end of the first voltage-stabilizing power supply module, and the power supply output end of the first voltage-stabilizing power supply module is used for being connected with the first display module;
The receiving card is used for detecting whether a luminous signal for driving the first display module exists in the display data after receiving the display data; when the display data does not have a light-emitting signal for driving the first display module, a first control signal is sent to an enabling end of the first voltage-stabilizing power supply module through the first pin, so that the first voltage-stabilizing power supply module stops working; the first voltage-stabilizing power supply module is used for supplying power to the first display module;
the transmitting card is connected with the receiving card, the receiving card is provided with a second pin, the second pin is connected with the enabling end of the second voltage-stabilizing power supply module, and the power supply output end of the second voltage-stabilizing power supply module is used for being connected with the second display module;
before the sending card is used for sending display data to the receiving card, detecting whether a light-emitting signal for driving the second display module exists in the display data, and sending a first trigger signal to the receiving card when the light-emitting signal for driving the second display module does not exist in the display data; and the receiving card is used for sending the first control signal to the enabling end of the second voltage-stabilizing power supply module through the second pin when the first trigger signal is received, so that the second voltage-stabilizing power supply module stops working.
2. The display screen dynamic control system according to claim 1, wherein when the receiving card detects that the display data has a light-emitting signal for driving the first display module, a second control signal is sent to an enabling end of the first regulated power supply module through the first pin, so that the first regulated power supply module works.
3. The display screen dynamic control system of claim 2, wherein the first control signal is a low level signal and the second control signal is a high level signal.
4. A display screen dynamic control system according to any one of claims 1 to 3, wherein the receiving card is further configured to stop transmitting the display data upon detecting that no light-emitting signal is present in the display data.
5. A display screen dynamic control system according to any one of claims 1 to 3, wherein the receiving card is further configured to send a first control signal to the enabling end of the first regulated power supply module through the first pin when receiving the second trigger signal, so that the first regulated power supply module stops working.
6. A display screen dynamic control system, comprising: the device comprises a receiving card, a first voltage-stabilizing power supply module, a second voltage-stabilizing power supply module, a third voltage-stabilizing power supply module and a transmitting card; the receiving card is an LED receiving card;
The receiving card is provided with a first pin, the first pin is connected with the enabling end of the first voltage-stabilizing power supply module, and the power supply output end of the first voltage-stabilizing power supply module is used for being connected with the first display module;
the receiving card is used for detecting whether a luminous signal for driving the first display module exists in the display data after receiving the display data; when the display data does not have a light-emitting signal for driving the first display module, a first control signal is sent to an enabling end of the first voltage-stabilizing power supply module through the first pin, so that the first voltage-stabilizing power supply module stops working; the first voltage-stabilizing power supply module is used for supplying power to the first display module;
the transmitting card is connected with the receiving card, the receiving card is provided with a third pin, the third pin is connected with the enabling end of the third voltage-stabilizing power supply module, the power supply output end of the third voltage-stabilizing power supply module is respectively connected with the power supply end of the first voltage-stabilizing power supply module and the power supply end of the second voltage-stabilizing power supply module, and the power supply output end of the second voltage-stabilizing power supply module is used for being connected with the second display module;
Before the sending card is used for sending the display data to the receiving card, detecting whether a light-emitting signal for driving the second display module exists in the display data, and sending a first trigger signal to the receiving card when the light-emitting signal for driving the second display module does not exist in the display data; the receiving card is used for receiving the first trigger signal and sending a third control signal to the enabling end of the third voltage-stabilizing power supply module through the third pin when detecting that the luminous signal for driving the first display module does not exist, so that the third voltage-stabilizing power supply module stops working.
7. The display screen dynamic control system according to claim 6, wherein when the receiving card detects that the display data has a light-emitting signal for driving the first display module, a second control signal is sent to an enabling end of the first regulated power supply module through the first pin, so that the first regulated power supply module works.
8. The display screen dynamic control system of claim 7, wherein the first control signal is a low level signal and the second control signal is a high level signal.
9. The display screen dynamic control system according to any one of claims 6 to 8, wherein the receiving card is further configured to stop transmitting the display data when detecting that no light-emitting signal is present in the display data.
10. The display screen dynamic control system according to any one of claims 6 to 8, wherein the receiving card is further configured to send a first control signal to the enabling end of the first regulated power supply module through the first pin when receiving the second trigger signal, so that the first regulated power supply module stops working.
11. A display screen, characterized by comprising a first display module and a display screen dynamic control system as claimed in any one of claims 1 to 10, wherein a power supply output end of the first voltage-stabilizing power supply module is connected with the first display module.
12. The display screen of claim 11, wherein the first display module comprises a first lamp bead and a first driving module, wherein a power supply output end of the first voltage-stabilizing power supply module is connected with a power supply input end of the first driving module, and an output end of the first driving module is connected with the first lamp bead.
13. The display screen of claim 11, wherein the first display module comprises at least one first lamp bead and a first driving module, the light emitting color of each first lamp bead is the same, the power supply output end of the first voltage-stabilizing power supply module is connected with the first driving module, and the output end of the first driving module is connected with each first lamp bead respectively.
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| CN201910543691.2A CN110111730B (en) | 2019-06-21 | 2019-06-21 | Display screen dynamic control system and display screen |
| PCT/CN2019/129967 WO2020253213A1 (en) | 2019-06-21 | 2019-12-30 | Display screen dynamic control system and display screen |
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| CN201910543691.2A CN110111730B (en) | 2019-06-21 | 2019-06-21 | Display screen dynamic control system and display screen |
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| CN110111730B true CN110111730B (en) | 2023-08-22 |
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| CN110111730B (en) * | 2019-06-21 | 2023-08-22 | 深圳市洲明科技股份有限公司 | Display screen dynamic control system and display screen |
| CN110599947A (en) * | 2019-08-15 | 2019-12-20 | 珠海格力电器股份有限公司 | Display screen on-off control circuit, display screen and control method |
| CN110728938B (en) * | 2019-11-22 | 2022-04-19 | 深圳市洲明科技股份有限公司 | Display control system and display screen |
| CN110880290B (en) * | 2019-12-07 | 2021-08-27 | 深圳蓝普科技有限公司 | LED display module, LED display screen and control equipment thereof |
| CN112017588B (en) * | 2020-08-31 | 2021-11-26 | 深圳市艾比森光电股份有限公司 | Energy-saving method for LED display screen and related device |
| CN115134958A (en) * | 2021-03-29 | 2022-09-30 | 广州视源电子科技股份有限公司 | LED power supply, control method and LED display equipment |
| CN113098866B (en) * | 2021-03-31 | 2024-01-09 | 西安诺瓦星云科技股份有限公司 | Cloud monitoring system and method |
| CN117859322A (en) * | 2022-08-08 | 2024-04-09 | 京东方科技集团股份有限公司 | Display method, image acquisition board, display device, display system and storage medium |
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| WO2020253213A1 (en) | 2020-12-24 |
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