KR102266979B1 - Led display device including an integrated hub board capable of self-power saving control based on external video signals - Google Patents

Abstract

Provided is technology, which is capable of controlling the power saving of a display device by self-analyzing an external image signal with the display device itself, regardless of a type of power supply system, image control controller, and data receiving card, and even in the absence of an external power control system. The present invention includes: a cabinet having an internal cavity in which terminals for supplying data and power with at least an external control terminal and a power supply means are formed; an integrated hub board which is installed in the internal cavity and connected to the terminal to receive data and power from the external control terminal and power supply means, and includes a connector for transmitting data and power, and is capable of transmitting data and power through printed lines without wiring; and an LED display module installed on an upper part of the cabinet and driven according to the data and power transmitted from the connector of the hub board.

Description

LED display device including an integrated hub board capable of self-power saving control based on external video signal {LED DISPLAY DEVICE INCLUDING AN INTEGRATED HUB BOARD CAPABLE OF SELF-POWER SAVING CONTROL BASED ON EXTERNAL VIDEO SIGNALS}

The present invention relates to a power saving control technology of an LED display device, and specifically, regardless of the type of a power supply system, an image control controller, and a data receiving card, even in the absence of an external power control system, the display device itself It relates to an LED display device equipped with an integrated hub board capable of controlling the power saving of the display device by self-analyzing the image signal of the display device.

Recently, various LED display boards are being used outdoors or indoors. The LED signboard can adjust the screen size as needed by arranging the LED display modules in which a plurality of LED modules are arranged vertically and horizontally, and implement it as a single display, so that images can be reproduced in different sizes depending on the size. It is implemented so that

In addition to black-and-white LEDs such as scoreboards in stadiums, these LED signboards have recently been able to output high-definition images, and the range of their use is increasing day by day.

In driving such an LED display device, it is necessary to supply a control signal for outputting an image to the LED display module and power for driving the LED display module. At this time, in the case of a large-sized LED display device, power consumption due to power supply is extreme, and a control technology for this is required.

A conceptual diagram of a conventional LED display device is shown in FIGS. 1 and 2 . First, referring to FIG. 1 , the LED display device is basically driven by receiving power, and includes an LED module 5 in which RGB, brightness, etc. are adjusted in order to receive an image signal and output an image signal to be output. do. In addition, the LED module 5 constitutes one display panel, constitutes the LED display module, and the corresponding display module is arranged vertically, horizontally and horizontally to determine the size.

At this time, DC power and an image signal are respectively applied to the power terminal 3 and the data terminal 4 , and the receiving card 1 is driven by the power and simultaneously receives the image signal from the data terminal 4 and transmits it. By resizing, a signal pair outputted through the receiving card 1 through the buffer 2 by generating an RGB signal, a clock signal, a control signal for the size of the signal, etc. is synchronized and each LED module 5 ) to be transmitted.

At this time, as described above, when the power is unlimitedly supplied, serious power consumption occurs, so the conventionally, the LED module 5 included in the LED display module by controlling the power supplied to the power terminal 3 as shown in FIG. 1 described above. ) to control the power supply to For example, when an image signal does not exist or a black color is outputted to the corresponding display module, the driving of the LED display module is stopped by cutting off the power supply, thereby reducing power consumption during the stop period.

In the conventional technology, for this purpose, as shown in FIG. 2 , the SMPS 110 (Switching Mode Power Supply) that controls the power supply directly controls the internal circuit, thereby outputting from the SMPS 110 according to the control command of the controller 100. Even if the controlled power signal is transmitted or the power is controlled by analyzing the video signal, the controller 100 has a built-in function of generating a control signal for controlling the power by analyzing the video input from the outside.

Accordingly, a controlled signal is transmitted from the data terminal 4 and the power terminal 3 to control the output of the LED display module to which the LED module 5 is coupled, thereby controlling power.

However, in this case, as described above, since the SMPS 110 of the direct control method or the controller 100 for analyzing the video signal and generating the control command are separately required, a separate equipment for power control is essential, so that the use The possible SMPS 110 , the controller 110 , and thus the cost for the provision of the dedicated receiving card 1 is greatly increased, and there is a problem that the usability thereof is greatly limited.

In addition, in this case, there is a high possibility that the control command is erroneously generated regardless of the image signal in each controller 100 , and thus the quality of the image output may be deteriorated due to a separate configuration for power saving.

On the other hand, in the conventional LED display device including such a separate configuration, a separate controller 100 and the SMPS 110 are cable-connected, and the receiving card 1 and the buffer 2 are also configured with separate hardware. Since it is installed in a cabinet, it has no choice but to have a very complicated structure by connecting cables, and may cause serious problems in maintenance and repair due to twisting of cables.

Accordingly, the present invention does not require a separate SMPS, a controller, and a receiving card for power supply control of the LED display device, and uses existing equipment, while analyzing an image through one device and power or image signal through it By enabling output control, an object of the present invention is to provide a technology that can greatly increase the power saving effect in the existing LED signboard products.

In particular, the present invention is not a complicated cable connection structure, but by providing a technology capable of realizing the above-described functions through an integrated board, power saving, maintenance improvement, and convenience of installation are greatly improved, and resource saving and Another purpose is to provide a technology that has an effect of improving the environment.

In order to achieve the above objects, an LED display device including an integrated hub board capable of self-power saving control based on an external image signal according to an embodiment of the present invention includes at least data and a cabinet having terminals for supplying power and having an internal cavity; It is installed in the inner cavity, and is connected to the terminal to receive data and power from an external control terminal and a power supply means, and includes a connector for transmitting data and power, and data through a printed line without wiring. and an integrated hub board capable of transmitting power; and an LED display module installed on the upper part of the cabinet and driven according to the data and power transmitted from the connector of the hub board, wherein the hub board receives and transmits an image signal received from an external control terminal. bing card; a control signal generating unit connected to an image signal line through which the image signal transmitted from the receiving card is transmitted, detecting the image signal, and generating a power supply control signal to the LED display module by using the detected image signal; And it is disposed between the power line between the power supply connector and the LED display module from the terminal with the power supply means, and is supplied to the LED display module by controlling the connection and disconnection of the power line according to the power supply control signal a power supply switching circuit for controlling the power supply; including, wherein the receiving card, the control processor, and the power switching circuit are interconnected without wiring through the printed line, and are integrally formed on the hub board.

The control signal generating unit extracts and rectifies the output enable signal OE of the receiving card, and when a section in which an image is not output and an image signal section corresponding to a power saving mode are detected in the LED display module, the power It is preferable to generate a power supply control signal to control the switching circuit to cut off the power line.

Preferably, the control signal generator generates a power supply control signal in which a first value that is a default value and a second value that is a cutoff signal of the power line are toggled.

Preferably, when the receiving card receives the image signal, it resizes the size of the image signal to correspond to the LED display module and transmits it to the image signal line.

The power switching circuit, including at least a MOSFET switching circuit, controls the connection and disconnection of the power line according to the value of the power supply control signal, thereby supplying power to the LED display module regardless of the type of the power supply means It is desirable to control

The power switching circuit is installed in a power line before a branch point of a power line for a plurality of LED modules included in the LED display module, thereby controlling that power is supplied to the driver integrated circuit and the buffer integrated circuit of the entire LED display module It is preferable to do

It is installed on an image signal line between the receiving card and the image signal connector of the LED display module, and controls the output of the image signal for image signal synchronization with respect to a plurality of LED modules included in the LED display module. It is preferable to further include a buffer for transmitting the video signal through the connector.

The control signal generating unit extracts and rectifies the output enable signal OE of the receiving card, and when a section in which an image is not output and an image signal section corresponding to a power saving mode are detected in the LED display module, the image It is preferable to transmit an image signal control signal for blocking signal transmission to the buffer.

Preferably, the control signal generator generates an image signal control signal for controlling transmission of the image signal to the LED display module together with the power supply control signal.

Preferably, the terminal includes a power terminal to which power is supplied from the power supply means and an Ethernet terminal for receiving a video signal from the external control terminal.

The connector may include a first power connector connected to the power terminal; a second power connector as an output terminal of the power line and connected to the LED display module to supply power to the LED display module; a first video signal connector connected to the Ethernet terminal; and a second image signal connector connected to the LED display module as an output terminal of the image signal line to transmit image signals to the LED display module, wherein the second power connector and the second image signal connector are integrated It is preferably composed of

According to the present invention, a receiving card is installed on a single hub board board including a minimum connector for receiving external power and video signals and transmitting power and video signals to the LED display module, and receiving through a printed circuit board. It is realized by analyzing the video signal transmitted from the card, and printing a control signal generator and power switching circuit that cuts off the power supply to each LED module when the video signal is cut off or in power saving mode.

Through this, since it is possible to analyze the video signal and control the power supply through it within one hub board, there is no need to have a dedicated SMPS, controller, and receiving card for power control, thereby maximizing the effect of saving resources. , in particular, there is an effect of obtaining a power saving effect by replacing a relatively inexpensive hub board for an existing LED display module.

In addition, according to the present invention, the present invention is not a complicated cable connection structure, but by providing a technology capable of realizing the above-mentioned functions through an integrated board, power saving, maintenance improvement and convenience of installation are greatly improved, and installation convenience is improved As a result, resource saving and environmental improvement can be expected.

In particular, since separate hardware for image analysis and power control is not installed, the time required for installation and the convenience of installation are greatly improved, thereby reducing the installation cost and saving resources and increasing the usability compared to the existing technology. can be maximized.

1 and 2 are block diagrams of a conventional LED display module.
3 is a block diagram of an LED display device including an integrated hub board capable of self-power saving control based on an external image signal according to an embodiment of the present invention.
4 is a diagram for explaining an example in which a power supply control signal is generated according to an embodiment of the present invention;
5 is a diagram for explaining an example of a power supply control signal and an image signal control signal according to an embodiment of the present invention;
6 is a view for explaining the characteristics of each part according to the implementation of an embodiment of the present invention.
7 and 8 are diagrams for explaining an example in which an LED billboard is configured according to an embodiment of the present invention.
9 is an example of an internal configuration of a computing device according to an embodiment of the present invention;

Hereinafter, various embodiments and/or aspects are disclosed with reference to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth to provide a thorough understanding of one or more aspects. However, it will also be recognized by one of ordinary skill in the art that such aspect(s) may be practiced without these specific details. The following description and accompanying drawings set forth in detail certain illustrative aspects of one or more aspects. These aspects are illustrative, however, and some of the various methods in principles of the various aspects may be employed, and the descriptions set forth are intended to include all such aspects and their equivalents.

As used herein, “embodiment”, “example”, “aspect”, “exemplary”, etc. may not be construed as an advantage or an advantage in any aspect or design described herein over other aspects or designs. .

Also, the terms "comprises" and/or "comprising" mean that the feature and/or element is present, but excludes the presence or addition of one or more other features, elements and/or groups thereof. should be understood as not

Also, terms including an ordinal number such as 1st, 2nd, etc. may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

In addition, in the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, are those commonly understood by those of ordinary skill in the art to which the present invention belongs. have the same meaning. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in an embodiment of the present invention, an ideal or excessively formal meaning is not interpreted as

On the other hand, in the following description, although some components are omitted, or excessively enlarged or reduced in order to explain the function of each component of the present invention, the matters described in the drawings are the technical features and rights of the present invention. It will be understood that the scope is not limited.

In addition, in the following description, a plurality of drawings will be simultaneously referenced and described in order to describe one technical feature or component constituting the invention.

1 and 2 are block diagrams of a conventional LED display module. 3 is a block diagram of an LED display device including an integrated hub board capable of self-power saving control based on an external image signal according to an embodiment of the present invention, and FIG. 4 is a power supply control according to an embodiment of the present invention. A diagram for explaining an example in which a signal is generated, FIG. 5 is a diagram for explaining an example of a power supply control signal and an image signal control signal according to an embodiment of the present invention, and FIG. 6 is an implementation of an embodiment of the present invention Accordingly, the drawings for explaining the characteristics of each part, FIGS. 7 and 8 are diagrams for explaining an example in which the LED billboard is configured according to the implementation of an embodiment of the present invention. Hereinafter, in order to explain each configuration and the function of each configuration according to each embodiment of the present invention, one or more drawings will be simultaneously referenced and described.

First, the LED display device of the present invention means a unit display device constituting the LED electric sign board. That is, as shown in FIG. 7 , in the LED display device implemented according to each embodiment of the present invention, the LED display module 30 for outputting an image and hardware for driving and controlling the LED display module are located in an internal cavity. It is characterized in that it is configured to include a mounted cabinet (10).

The unit LED display device is interconnected through a coupling structure (not shown) that is connected to each other vertically and horizontally, so that the display size can be changed, and through this, LED billboards of various sizes as shown in FIG. 8 can be configured. can That is, one LED sign means a structure in which the LED display devices to be described in each embodiment of the present invention are interconnected.

All configurations, such as devices for supplying power and a controller for transmitting image signals, which will be described later, are configured as a single hardware for one LED signage or a plurality of LED displays constituting the LED signboard according to various embodiments of the present invention. It can be installed on every device. In this case, a plurality of devices and controllers for supplying power control power supply and image signal transmission to each LED display module under the control of one main management terminal or server. At this time, for example, the controller includes the content of the video signal transmitted to each LED display device, the signal for the RGB value of the color output from the corresponding LED display device for each frame constituting the corresponding content, the clock signal, the broadcast signal, Various video control signals such as synchronization signals may be received in real time from the above-described management terminal or server, and may function to transmit video signals from the controller to a receiving card to be described later.

In the present invention, the controller, the receiving card, the hub board, etc. may be configured as a kind of circuit board or may be configured as an example of a computing device that performs data transmission/reception, storage, and processing. In the present invention, the computing device is as shown in FIG. 9 to be described later.

1 to 2, as described above, is a diagram for a technology for controlling power in a plurality of LED display devices included in the existing LED billboards or LED billboards.

Referring to FIG. 1 , the LED display device includes an LED module 5 that is basically driven by receiving power, and whose RGB, brightness, etc. are adjusted in order to receive an image signal and output an image signal to be output. . In addition, the LED module 5 constitutes one display panel, constitutes the LED display module, and the corresponding display module is arranged vertically, horizontally and horizontally to determine the size.

At this time, DC power and an image signal are respectively applied to the power terminal 3 and the data terminal 4 , and the receiving card 1 is driven by the power and simultaneously receives the image signal from the data terminal 4 and transmits it. By resizing, a signal pair outputted through the receiving card 1 through the buffer 2 by generating an RGB signal, a clock signal, a control signal for the size of the signal, etc. is synchronized and each LED module 5 ) to be transmitted.

As described above, in the conventional power control technology described above, as shown in FIG. 2 , the SMPS 110 according to the control command of the controller 100 by directly controlling the circuit inside the SMPS (Switching Mode Power Supply) for controlling the power supply. Even if a power signal whose output is controlled in 110 is transmitted or an image signal is analyzed and power is controlled accordingly, the function of generating a control signal for controlling power by analyzing an image input from the outside to the controller 100 is not available. It is built-in.

Accordingly, a controlled signal is transmitted from the data terminal 4 and the power terminal 3 to control the output of the LED display module to which the LED module 5 is coupled, thereby controlling power.

In this case, in order to control the internal power supply in the SMPS 110, since the dedicated SMPS 110 capable of controlling power must be used, its usability is greatly reduced. That is, since the above-described dedicated SMPS 110 must be included, separate equipment must be purchased and installed, and there is a problem in that the resources required for power control for the general existing LED signage are excessive.

This is also the case in the controller 100 . That is, since the controller 100 for generating a separate control command or analyzing an image signal is required, the cost of constructing the system is extremely high. On the other hand, the cost of constructing the system is excessively consumed.

In addition, when constructing a system using separate equipment, the maintainability may be severely reduced depending on the level of understanding of the system, and it is difficult to increase the utilization rate due to the complexity of the system construction.

The present invention is devised to solve this problem very simply, and does not require a separate SMPS or controller or a receiving card for it, and even if existing equipment is used, a hub board installed inside the cabinet 10 Only the configuration of (20) enables power control with a certain amount of power saving, thereby maximizing the efficiency in terms of cost for system construction compared to power saving efficiency, and thus building the system very simply and easily. The purpose is to provide a technology that can be maintained and repaired,

In particular, in the case of controllers and SMPSs, new models will be continuously released depending on the discontinuance of parts, development of new products, and launch of new models. to be innovatively eliminated.

For this purpose, a detailed configuration example of an LED display device (hereinafter referred to as 'device of the present invention') including an integrated hub board capable of self-power saving control based on an external image signal according to an embodiment of the present invention used for this purpose is shown in FIG. 3 is shown in

First, the device of the present invention is characterized in that it includes the cabinet 10, the hub board 20, and the LED display module 30 as described above. As described above, the cabinet 10 is configured to have an internal cavity in which terminals for supplying data and power to at least an external control terminal and a power supply means are formed. That is, the LED display module 30 is configured to have a coupling means (not shown) to be fixedly installed, so that the LED display module 30 is fixed to the upper portion. In addition, a coupling portion to which the hub board 20 to be described later is fixed may be formed in the inner cavity, and the shape and formation position thereof may be variously configured according to the shape of the hub board 20 .

In addition, the cabinet 10 has a handle or the like for carrying it is formed on a side wall or an outer surface, and various members for interconnection may be formed on the side surface for connection between the LED display devices.

Meanwhile, a plurality of terminals for connection to the outside may be formed in the cabinet 10 . Specifically, the power supply terminal 3 for receiving power from the power supply means 200 may be formed, and if the power applied to the power supply terminal 3 is DC, a DC/DC converter, etc. If it is, the SMPS 11 such as an AC/DC converter may be connected to the power terminal 3 to generate DC power.

Meanwhile, the video signal transmitted from an external control terminal such as the above-described controller 100 is configured to be received by the Ethernet terminal 4 connected to the controller 100 and the like. The Ethernet terminal 4 is connected to a wired communication line, and a serial port or a wireless reception module other than the corresponding Ethernet terminal 4 may be installed according to an embodiment.

As described above, the hub board 20 is a component installed in the inner cavity of the cabinet 10 , and refers to a circuit board configured as an integrated board in order to perform a core function of the present invention. In particular, in the present invention, the hub board 20 may be configured as a printed circuit board in which power lines and circuit elements are printed or embedded in the hub board 20 in order to eliminate a complicated connection structure through a cable.

That is, the hub board 20 is installed in the internal cavity and is connected through the above-described terminals 3 and 4 and connectors 25 and 26 to receive data and power from the external control terminal 100 and the power supply means 200 . It will be understood as an all-in-one device that is supplied and includes a connector 27 for transmitting data and power, and capable of transmitting data and power through printed lines and circuit elements without wiring.

Meanwhile, the LED display module 30 will be understood as a device that is driven according to the data and power transmitted from the connector of the hub board 20 and outputs an image, as described above.

A key feature of the present invention is that there is no cable and power and data are transmitted on the hub board 20 through the power line 29 and the image signal line 28, and all except the receiving card 21 are The circuit element is also printed or fixedly installed on the hub board 20 to perform its function.

That is, unlike the conventional technology described above, the control signal generator 22 and the power switching circuit 23 , which will be described later, and the buffer 24 are additionally printed on the hub board 20 or circuit elements for performing the corresponding function. is mounted, without the need for a separate dedicated SMPS, controller, and receiving card, the image signal is automatically analyzed, and thus the power and the image signal supplied to the LED display module 30 are controlled accordingly.

The receiving card 21 may be basically installed on the hub board 20 . The receiving card 21 receives a video signal from an external management terminal such as the controller 100 through the video signal connector 25, resizes it, and controls the video signal output from the connected LED display module 30 carry out The receiving card 21 is a cartridge-type device, and may be installed in or separated from the receiving card slot 211 of the hub board 20 .

When the receiving card 21 receives an image signal from the controller 100 , it resizes it, generates a signal pair that allows the LED display module 30 to drive, and transmits it to the image signal line 28 . In the present invention, a signal pair is a set of various data for driving the LED display module 30, for example, 24-bit X4 data representing RGB, clock and latch data, output enable data, Serial Clock (SCK), Serial Various data may be included, including Chip Select (SCS), Serial Data Input (SDI), and Serial Data Output (SDO). That is, the receiving card 21 resizes the size and detailed data of the image signal so that the image is output in the specification required to be output according to the specification of the LED display module 30 .

Meanwhile, the hub board 20 includes a power connector 26 to receive DC power output from the SMPS 11 , and includes a receiving card 21 to be driven by power supply on the hub board 20 . Power is supplied to the LED display module 30 through a plurality of configurations and an LED module connector 27 to be described later. Meanwhile, the image signal connector 25 may also be included in the hub board 20 . A video signal from an external control terminal such as the controller 100 through the video signal connector 25 is transmitted to the receiving card 21 through the video signal terminal 4 .

Basically, the power is transmitted between the power connector 26 and the LED module connector 27 is connected to the power line 28 . In the present invention, in specific configurations of the connector, the power connector 26 may be referred to as a first power connector connected to the power terminal 3 , and an output terminal of the power line 29 , that is, the LED display module 30 . A second power connector connected to the LED display module 30 installed in the connection area of the power supply to the . Meanwhile, the above-described image signal connector 25 may be referred to as a first image signal connector connected to the Ethernet terminal 4 . As an output terminal of the image signal line 28 , a second image signal connector connected to the LED display module 30 may be disposed to transmit an image signal to the LED display module 30 .

At this time, as described above and as shown in FIG. 3 , the second power connector and the second video signal connector are composed of an integrated LED module connector 27 , and the power and the video signal are transmitted to the LED display module 30 at a time. ), and each line is branched on the corresponding connector 27 or the LED display module 30 to transmit power and image signals to a plurality of LED modules 31 constituting the LED display module 30. can

On the other hand, the control signal generating unit 22 is connected to the image signal line 28 through which the image signal transmitted from the receiving card 21 is transmitted, detects the image signal, and uses the detected image signal to the LED display module ( 30) performs a function of generating a power supply control signal for

Specifically, as shown in FIG. 3 , the control signal generating unit 22 captures a signal pair transmitted from the receiving card 21 by having a connection point on the image signal line 28 , will receive a signal. Thereafter, power as a signal for whether to permit or block power supply to the LED display module 30 using a signal that is a reference for controlling power supply among various data included in a signal pair that is an image signal It generates and transmits a supply control signal.

Specifically, referring to the example of FIG. 4 , referring to the graph 300 of the image signal s along the time line t, for example, the image signal generated from the receiving card 21 has an output An output enable signal OE capable of confirming whether a section exists may be used. That is, the control signal generator 22 is composed of an FET application circuit that extracts and rectifies the above-described OE signal from the image signal, and performs a function of detecting a pulse signal included in the PWM signal such as peak detection. By doing so, as a section (t1 ~ t2, t3 ~) in which the image output exists through the OE and other sections, that is, a section in which an image is not output through the corresponding LED display module 30 and a section corresponding to the power saving mode are detected. do.

Accordingly, the control signal generator 22 transmits power through the power line 29 by controlling the power switching circuit 23 , which will be described later, at least in a section in which no image is output and an image signal section corresponding to the power saving mode. It generates a control signal that blocks it from happening.

As such, the control signal generated by the control signal generator 22 is a control signal in which a first value (0), which is a default value, and a second value (1), which is a signal for shutting off the power line 29 are toggled. can create That is, referring to the graph 301 and the graph 300 of the control signal CS of FIG. 4 , the second value is output in the section (0 to t1, t2 to t3) in which the power line 29 is to be cut off. , it can be confirmed that a control signal equal to a value of 0 is generated in other sections.

On the other hand, the power switching circuit 23 is a power line between the power supply connector 27 and the LED display module through the power connector 26 from the terminal 3 with the power supply means 200 as shown in FIG. 29), and performs a function of controlling the power supplied to the LED display module 30 by controlling the connection and disconnection of the power line 29 according to the power supply control signal.

At this time, as described above, the power supply control signal has a toggle-type signal and is implemented through an element that can be printed or fixed on a printed circuit board on the hub board 20, the power switching circuit 23 is For example, at least including a MOSFET switching circuit, by controlling the connection and disconnection of the power supply line 29 according to the value of the power supply control signal, regardless of the type of the power supply means 200, the LED display module 30 It is preferably configured to control the power supply to the .

On the other hand, when each LED module 31 is controlled, there is a possibility that an image delay may occur due to a difference in on/off timing of the IC power in the controlled region. Accordingly, since there is a possibility that a sense of alienation with the uncontrolled screen exists, in the present invention, the power switching circuit 23 includes a plurality of LED modules 31 included in the LED display module 30 as shown in FIG. 3 . ) by being installed on the power line 29 before the branch point of the power line, it is preferable to control that power is supplied to the driver integrated circuit and the buffer integrated circuit of the LED display module 30 as a whole. The driver integrated circuit and the buffer integrated circuit are, for example, installed on the LED display module 30 or the hub board 20 to perform control of the LED display module 30, and a buffer ( 24) and desirably means a different configuration.

Through this, through low cost consumption of simply configuring a circuit on a circuit board such as the hub board 20, it is possible to perform relatively simple but reliable power control rather than complex power control. For example, it is possible to obtain a power saving effect of about 10% or more, which shows a very excellent power and cost saving efficiency compared to the conventional technology when considering the cost of constructing circuit elements on a printed circuit board.

Meanwhile, in the present invention, the above-described buffer 24 may be further included. The buffer 24 may have, for example, the same configuration as the buffer 2 shown in FIGS. 1 and 2 , but may be configured with a circuit element separate from the buffer IC. That is, a plurality of LED modules 31 included in the LED display module 30 are installed on the image signal line 28 between the receiving card 21 and the image signal connector 27 of the LED display module 30 . ) to control the output of the image signal to be transmitted through the image signal connector 27 , that is, the LED module connector 27 for synchronization of the image signal.

In this case, the control signal generating unit 22 can control the power of the LED display module 30 more precisely and reliably by not only controlling the supply of power but also controlling the transmission of the image signal itself.

That is, the control signal generating unit 22 extracts and rectifies the output enable signal OE of the receiving card 21 in the same/similar manner to the generation principle of the power supply control signal, and in the LED display module 30 When a section in which no image is output and an image signal section corresponding to the power saving mode are detected, an image signal control signal for blocking the transmission of the image signal is transmitted to the buffer 24 .

The image control signal transmitted to the buffer 24 is composed of the above-described power supply control signal CS1 and the inverted image control signal CS2 and is transmitted to the buffer 24 as shown in FIG. 5 . Through this, the buffer 24 controls the blocking of the transmission of the video signal at the same time as the power supply control. This has the effect of improving the image quality and increasing the power saving effect by simultaneously performing power supply control and video signal transmission control, so that power saving and image output can be controlled very accurately even in the case of an error in one configuration.

According to this, the control signal generating unit 22 generates an image signal control signal for controlling the transmission of the image signal to the LED display module 30 together with the power supply control signal, so that the LED display module ( 30) can be controlled.

According to this configuration, as shown in FIG. 6 , the configuration region A of a simple circuit element including a control signal generator and a power switching circuit, and additionally a buffer, is embedded or printed on the hub board 20 as described above. can be implemented In this case, as other components, the external controller, SMPS, power supply means, and receiving card become a replaceable configuration (B), but the video signal is integrated by itself regardless of which functions the replaceable configuration includes. It is analyzed through the used hub board, and through this, the power saving effect can be obtained by controlling the area (C) of the LED display module. As shown in FIG. 6 , according to these technical features, the LED display module area C is also replaceable, and there will be no limitation on the replacement.

9 shows an example of an internal configuration of a computing device according to an embodiment of the present invention, and in the following description, descriptions of unnecessary embodiments that overlap with those of FIGS. 1 to 8 will be omitted. do it with

9, the computing device 10000 includes at least one processor 11100, a memory 11200, a peripheral interface 11300, an input/output subsystem ( It may include at least an I/O subsystem) 11400 , a power circuit 11500 , and a communication circuit 11600 . In this case, the computing device 10000 may correspond to a user terminal connected to the tactile interface device (A) or the aforementioned computing device (B).

The memory 11200 may include, for example, a high-speed random access memory, a magnetic disk, an SRAM, a DRAM, a ROM, a flash memory, or a non-volatile memory. have. The memory 11200 may include a software module, an instruction set, or other various data required for the operation of the computing device 10000 .

In this case, access to the memory 11200 from other components such as the processor 11100 or the peripheral interface 11300 may be controlled by the processor 11100 .

Peripheral interface 11300 may couple input and/or output peripherals of computing device 10000 to processor 11100 and memory 11200 . The processor 11100 may execute a software module or an instruction set stored in the memory 11200 to perform various functions for the computing device 10000 and process data.

The input/output subsystem 11400 may couple various input/output peripherals to the peripheral interface 11300 . For example, the input/output subsystem 11400 may include a controller for coupling a peripheral device such as a monitor, keyboard, mouse, printer, or a touch screen or sensor as needed to the peripheral interface 11300 . According to another aspect, input/output peripherals may be coupled to peripheral interface 11300 without going through input/output subsystem 11400 .

The power circuit 11500 may supply power to all or some of the components of the terminal. For example, the power circuit 11500 may include a power management system, one or more power sources such as batteries or alternating current (AC), a charging system, a power failure detection circuit, a power converter or inverter, a power status indicator, or a power source. It may include any other components for creation, management, and distribution.

The communication circuit 11600 may enable communication with another computing device using at least one external port.

Alternatively, as described above, if necessary, the communication circuit 11600 may include an RF circuit to transmit and receive an RF signal, also known as an electromagnetic signal, to enable communication with other computing devices.

This embodiment of FIG. 9 is only an example of the computing device 10000, and the computing device 11000 may omit some components shown in FIG. 9 or further include additional components not shown in FIG. 9, or 2 It may have a configuration or arrangement that combines two or more components. For example, a computing device for a communication terminal in a mobile environment may further include a touch screen or a sensor in addition to the components shown in FIG. 9 , and various communication methods (WiFi, 3G, LTE) are provided in the communication circuit 1160 . , Bluetooth, NFC, Zigbee, etc.) may include a circuit for RF communication. Components that may be included in the computing device 10000 may be implemented in hardware, software, or a combination of both hardware and software including an integrated circuit specialized for one or more signal processing or applications.

Methods according to an embodiment of the present invention may be implemented in the form of program instructions that can be executed through various computing devices and recorded in a computer-readable medium. In particular, the program according to the present embodiment may be configured as a PC-based program or an application dedicated to a mobile terminal. The application to which the present invention is applied may be installed in the user terminal through a file provided by the file distribution system. For example, the file distribution system may include a file transmission unit (not shown) that transmits the file in response to a request from the user terminal.

The device described above may be implemented as a hardware component, a software component, and/or a combination of the hardware component and the software component. For example, the devices and components described in the embodiments may include, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate array (FPGA), It may be implemented using one or more general purpose or special purpose computers, such as a programmable logic unit (PLU), microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For convenience of understanding, although one processing device is sometimes described as being used, one of ordinary skill in the art will recognize that the processing device includes a plurality of processing elements and/or a plurality of types of processing elements. It can be seen that can include For example, the processing device may include a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as parallel processors.

Software may comprise a computer program, code, instructions, or a combination of one or more thereof, which configures a processing device to operate as desired or is independently or collectively processed You can command the device. The software and/or data may be any kind of machine, component, physical device, virtual equipment, computer storage medium or device, to be interpreted by or to provide instructions or data to the processing device. may be permanently or temporarily embody in The software may be distributed over networked computing devices, and stored or executed in a distributed manner. Software and data may be stored in one or more computer-readable recording media.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the embodiment, or may be known and used by those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

As described above, although the embodiments have been described with reference to the limited embodiments and drawings, various modifications and variations are possible by those skilled in the art from the above description. For example, the described techniques are performed in a different order than the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result. Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (11)

a cabinet having an internal cavity in which terminals for supplying data and power to at least an external control terminal and a power supply means are formed;
It is installed in the inner cavity, and is connected to the terminal to receive data and power from an external control terminal and a power supply means, and includes a connector for transmitting data and power, and data through a printed line without wiring. and an integrated hub board capable of transmitting power; and
an LED display module installed on the upper part of the cabinet and driven according to the data and power transmitted from the connector of the hub board;
The hub board is
a receiving card for receiving and transmitting a video signal received from an external control terminal;
a control signal generating unit connected to an image signal line through which the image signal transmitted from the receiving card is transmitted, detecting the image signal, and generating a power supply control signal to the LED display module by using the detected image signal; and
Power supplied to the LED display module by controlling the connection and disconnection of the power line according to the power supply control signal, which is disposed between the power line between the terminal and the power supply means and the power connector with the LED display module. a power supply switching circuit to control the; including,
The receiving card, the control signal generating unit, and the power switching circuit are interconnected without wiring through the printed line, and are integrally formed on the hub board,
It is installed on an image signal line between the receiving card and the image signal connector of the LED display module, and controls the output of the image signal for image signal synchronization with respect to a plurality of LED modules included in the LED display module. It further includes; a buffer to be transmitted through the video signal connector,
The control signal generator,
By extracting and rectifying the output enable signal OE of the receiving card, when an image signal section corresponding to a section in which an image is not output and an image signal section corresponding to a power saving mode is detected in the LED display module, the transmission of the video signal is blocked An LED display device including an integrated hub board capable of self-power saving control based on an external image signal, characterized in that it transmits an image signal control signal to the buffer.
According to claim 1,
The control signal generator,
By extracting and rectifying the output enable signal OE of the receiving card, when an image signal period corresponding to a period in which an image is not output and an image signal period corresponding to a power saving mode is detected in the LED display module, the power switching circuit is controlled to the An LED display device comprising an integrated hub board capable of self-power saving control based on an external image signal, characterized in that it generates a power supply control signal to cut off the power line.
3. The method of claim 2,
The control signal generator,
LED display including an integrated hub board capable of self-power saving control based on an external image signal, characterized in that the first value, which is a default value, and the second value, which is the cutoff signal of the power line, are toggled to generate a power supply control signal Device.
According to claim 1,
The receiving card is
LED display including an integrated hub board capable of self-power saving control based on an external image signal, characterized in that when the image signal is received, the size of the image signal is resized to correspond to the LED display module and transmitted to the image signal line Device.
According to claim 1,
The power switching circuit is
At least including a MOSFET switching circuit, by controlling the connection and disconnection of the power line according to the value of the power supply control signal, characterized in that to control the power supply to the LED display module regardless of the type of the power supply means An LED display device including an integrated hub board capable of self-power saving control based on an external video signal.
6. The method of claim 5,
The power switching circuit is
External, characterized in that by being installed in the power line before the branch point of the power line for the plurality of LED modules included in the LED display module, control that power is supplied to the driver integrated circuit and the buffer integrated circuit of the entire LED display module An LED display device including an integrated hub board capable of self-power saving control based on an image signal.
delete delete According to claim 1,
The control signal generator,
LED including an integrated hub board capable of self-power saving control based on an external image signal, characterized in that generating an image signal control signal for controlling transmission of the image signal to the LED display module together with the power supply control signal display device.
According to claim 1,
The terminal is
An integrated hub board capable of self-power saving control based on an external video signal, characterized in that it includes a power terminal to which power is supplied from the power supply means and an Ethernet terminal for receiving a video signal from the external control terminal LED display device.
11. The method of claim 10,
The connector is
a first power connector connected to the power terminal;
a second power connector as an output terminal of the power line and connected to the LED display module to supply power to the LED display module;
a first video signal connector connected to the Ethernet terminal; and
a second image signal connector as an output terminal of the image signal line and connected to the LED display module to transmit an image signal to the LED display module;
and an integrated hub board capable of self-power saving control based on an external image signal, characterized in that the second power connector and the second image signal connector are integrally configured.

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