Large display system having high luminance and reduced energy consumption

Abstract

The present invention relates to a large display system having high luminance and reduced energy consumption. The large display system comprises: multiple light-emitting panels, each comprising multiple light-emitting elements arranged to output image signals; a cabinet in which the multiple light-emitting panels are installed; and a substrate provided in the cabinet. The cabinet includes fasteners arranged to fasten the corners of the light-emitting panels, and ventilation openings formed through at least two side surfaces thereof. The substrate comprises: a plate configured to control the luminance of the light-emitting panels on the basis of pulse-width modulation, the plate having through-holes through which the fasteners pass; a power module installed on one side of one surface of the plate; an input / output module installed on the other side of one surface of the plate to transmit a data signal; and a hub module disposed on the one surface of the plate and connected to each of the light-emitting panels to distribute the data signal.

Description

Large display system with energy saving and high brightness

[0001] The present invention relates to a large display system that saves energy and has high brightness.

[0002] Generally, a display system is an information transmission medium that outputs visual information actually captured or processed and generated by a computer, displaying it in the form of text, images, or videos. Examples include image display on a screen, television receivers, devices that display text or shapes on screens such as computers, vacuum tubes, light-emitting diodes (LEDs), and liquid crystal displays (LCDs).

[0003] Furthermore, display systems serve as a means of communication, utilized for various purposes such as exhibitions, advertising, and public relations. Recently, advancements in LED and information technology (IT) have led to not only larger screen sizes but also diverse innovative approaches. In particular, large-scale LED display systems have established themselves as a primary means of modern communication and are widely used as a communication tool with significant impact on the public. These large-scale display systems are being applied to a wide range of fields, including commercial advertising, stadiums, multi-vision systems, and broadcasting.

[0004] In particular, large display systems are elevating beyond their function as information transmission media into media facades that pursue artistic design and media art that expresses artistic skill; their application fields are gradually expanding, and they are establishing themselves as a new paradigm of cutting-edge technology that expresses culture, information, and knowledge through human visual functions.

[0005] However, as the application fields and scale of large-scale display systems expand, the number of LEDs used as an essential display medium is also increasing rapidly; consequently, difficulties exist regarding efficient placement and connection, as well as the rising costs associated with this.

[0006] Furthermore, when applying conventional large display systems, difficulties were faced in that power consumption inevitably increased and wiring became more complex due to the increased number of LEDs, despite them being low-power devices, and problems arose regarding the stable operation of the system, such as voltage drop.

[0007] The present invention was created to solve the problems of the prior art described above, and aims to provide a large display system that saves energy and has high brightness, capable of effectively reducing energy consumption and significantly lowering maintenance costs by improving the power transmission structure, such as wiring, and the internal structure, and capable of exhibiting high gray scale levels at low brightness.

[0008] A large display system having high brightness and energy saving according to one aspect of the present invention comprises: a plurality of light-emitting panels having a plurality of light-emitting elements arranged therein and outputting an image signal; a cabinet in which the plurality of light-emitting panels are installed; and a substrate provided within the cabinet, wherein the cabinet has fasteners arranged therein for fastening the corners of the light-emitting panels and ventilation holes provided on at least two sides, and the substrate comprises: a plate having a through hole through which the fasteners pass, which controls the brightness of the light-emitting panels based on pulse width modulation; a power module installed on one side of one surface of the plate; an input / output module installed on the other side of one surface of the plate and transmitting a data signal; and a hub module provided on one surface of the plate and connected to each of the light-emitting panels to distribute the data signal.

[0009] Specifically, the cabinet includes a shielding layer for blocking external electromagnetic waves, and a high-frequency absorbing material may be provided adjacent to the ventilation opening for electromagnetic shielding.

[0010] Specifically, the plate is composed of a multilayer structure, and each layer has an independent shielding structure to prevent interference of high-frequency signals, and may include a thermally conductive material for heat dissipation.

[0011] Specifically, the cabinet is equipped with at least two of the light-emitting panels in the horizontal and vertical directions, and at least two of the fasteners are assigned to each of the light-emitting panels in the horizontal and vertical directions, and can be attached to the light-emitting panels using magnetism.

[0012] Specifically, the plate comprises: a single through hole through which the fastener corresponding to the light-emitting panel of the first horizontal row in the cabinet or the fastener corresponding to the light-emitting panel of the second horizontal row in the cabinet passes; and an extended through hole through which a plurality of the fasteners corresponding to the light-emitting panels of the first and second horizontal rows in the cabinet, respectively, and arranged adjacently to each other, or a plurality of the fasteners corresponding to the light-emitting panels of the second and third horizontal rows in the cabinet, respectively, and arranged adjacently to each other passes through, wherein the extended through hole is penetrated by two or more of the fasteners arranged adjacently in at least one of the horizontal and vertical directions, and the plate may include an inlet end provided on the lower side and positioned so that the fastener corresponding to the light-emitting panel of the third horizontal row in the cabinet is positioned.

[0013] Specifically, the power module includes a power port protruding from the input terminal, and the input / output module includes an input port and an output port provided at a position corresponding to the light-emitting panel in the first horizontal row of the cabinet and at a position corresponding to the light-emitting panel in the second horizontal row of the cabinet, respectively, and the hub module may include a connector installed on the other side of the plate to which the plurality of light-emitting panels are each connected, and hub wiring connected from the input / output module to the connector, respectively.

[0014] Specifically, the plate comprises: a single through hole through which the fastener corresponding to the light-emitting panel in the first vertical column of the cabinet or the fastener corresponding to the light-emitting panel in the second vertical column of the cabinet passes; and an extended through hole through which a plurality of the fasteners corresponding to the light-emitting panels in the first vertical column and the second vertical column of the cabinet, respectively, and arranged adjacently to each other pass through, wherein the extended through hole may pass through two or more of the fasteners arranged adjacently in at least one of the horizontal and vertical directions.

[0015] The large display system for saving energy and having high brightness according to the present invention integrates a power supply module, a hub module, a receiving module, etc., optimizes the module arrangement, and improves the ventilation structure to promote heat dissipation, thereby improving power usage, extending lifespan, enhancing reliability, and enabling high brightness at low light levels.

[0016] FIG. 1 is a perspective view of a display device of a large display system having high brightness and energy saving according to one embodiment of the present invention.

[0017] FIG. 2 is a perspective view of a display device of a large display system having high brightness and energy saving according to one embodiment of the present invention.

[0018] FIG. 3 is a perspective view of a display device of a large display system having high brightness and energy saving according to one embodiment of the present invention.

[0019] FIG. 4 is a front view of a display device of a large display system having high brightness and energy saving according to one embodiment of the present invention.

[0020] FIG. 5 is a rear view of a display device of a large display system having high brightness and energy saving according to one embodiment of the present invention.

[0021] FIG. 6 is a side view of a display device of a large display system having high brightness and energy saving according to one embodiment of the present invention.

[0022] FIG. 7 is a plan view of a display device of a large display system having high brightness and energy saving according to one embodiment of the present invention.

[0023] FIG. 8 is a front view of a substrate provided in a display device of a large display system having high brightness and energy saving according to one embodiment of the present invention.

[0024] FIG. 9 is a perspective view of a display device of a large display system having high brightness and energy saving according to one embodiment of the present invention.

[0025] FIG. 10 is a conceptual diagram of a display device of a large display system having high brightness and energy saving according to one embodiment of the present invention.

[0026] Figure 11 is a drawing showing a conventional display system.

[0027] The objects, specific advantages, and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments in conjunction with the accompanying drawings. It should be noted that in assigning reference numerals to the components of each drawing in this specification, identical components are assigned the same number whenever possible, even if they are shown in different drawings. Furthermore, in describing the present invention, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions would unnecessarily obscure the essence of the invention.

[0028] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0029]

[0030] FIGS. 1 to 3 are perspective views of a display device of a large display system having high brightness and energy saving according to an embodiment of the present invention, FIG. 4 is a front view of a display device of a large display system having high brightness and energy saving according to an embodiment of the present invention, and FIG. 5 is a rear view of a display device of a large display system having high brightness and energy saving according to an embodiment of the present invention.

[0031] In addition, FIG. 6 is a side view of a display device of a large display system having high brightness and energy saving according to one embodiment of the present invention, and FIG. 7 is a top view of a display device of a large display system having high brightness and energy saving according to one embodiment of the present invention.

[0032] FIG. 8 is a front view of a substrate provided in a display device of a large display system having high brightness and energy saving according to one embodiment of the present invention, FIG. 9 is a perspective view of a display device of a large display system having high brightness and energy saving according to one embodiment of the present invention, and FIG. 10 is a conceptual diagram of a display device of a large display system having high brightness and energy saving according to one embodiment of the present invention.

[0033] Referring to FIGS. 1 to 10, etc., a large display system (1) having high brightness and energy saving according to one embodiment of the present invention includes a display device (10), a control unit (20), etc.

[0034]

[0035] A display device (10) outputs an image signal using a light-emitting element. One or more light-emitting panels (110) may be provided in a single display device (10), and a large display screen may be formed by installing multiple display devices (10) adjacently.

[0036] The display device (10) may be formed in a flat shape, installed on a flat surface, or installed continuously on two surfaces that are folded and connected. The latter case is shown in FIG. 9. Alternatively, the display device (10) may be provided in a curved shape, at least in part, considering the installation location or shape. In this case, some of the light-emitting panels (110) provided in the display device (10) may be curved panels.

[0037] A plurality of display devices (10) are provided with the same size and can be installed to be arranged in a grid shape at specific locations. Of course, it is also possible for the display devices (10) to be arranged in a combination of different sizes.

[0038] A plurality of display devices (10) installed at specific locations may be connected to a control unit (20) to be described later. The control unit (20) may generate or transmit video signals output to the display devices (10). The control unit (20) and the display devices (10) may be wired to each other.

[0039]

[0040] The control unit (20) controls the display device (10). The control unit (20) includes a communication-capable terminal, a server, etc., and can be connected to each of the multiple display devices (10). As shown in FIG. 10, the control unit (20) can be wired for controlling the display device (10) and transmitting video signals. The control unit (20) can control the display device (10) by transmitting control signals, etc. to a substrate (130) provided on the display device (10).

[0041] The control unit (20) can collectively control a plurality of display devices (10) arranged to form a continuous shape with respect to each other, so that a continuous image is output by the plurality of display devices (10).

[0042] Additionally, the control unit (20) can control the power supplied to the display device (10). That is, power can be transmitted to the display device (10) via the control unit (20). The control unit (20) is connected to the substrate (130), and as will be described later, the substrate (130) is provided with a power module (132), an input / output module (133), and a hub module (134). The control unit (20) is connected to each module of the substrate (130) and can control the power of the display device (10), the input / output of video signals, and the distribution of signals to a plurality of light-emitting panels (110) provided in the display device (10).

[0043] Of course, alternatively, it is also possible to have a control unit (20) for each display device (10). However, in this case, the control units (20) can be controlled in conjunction with each other so that a continuous image is output through multiple display devices (10).

[0044] As will be explained below, the display device (10) of the present embodiment effectively improves the arrangement, wiring, structure, ventilation, etc. of the module within the substrate (130), and thereby ensures energy saving and stable operation in terms of image output and control by the control unit (20).

[0045]

[0046] Below, the detailed configuration of the display device (10) is described with reference to the drawings. The display device (10) includes a light-emitting panel (110), a cabinet (120), a substrate (130), etc.

[0047] A light-emitting panel (110) has a plurality of light-emitting elements arranged therein and outputs an image signal. A plurality of light-emitting panels (110) may be arranged for a single display device (10). For example, with reference to FIG. 4, two light-emitting panels (110) may be arranged horizontally and three vertically on a single display device (10). That is, a total of six light-emitting panels (110) may be arranged for a display device (10).

[0048] The light-emitting panel (110) may be composed of a transparent display panel in which a transparent plate or a transparent film is used as a base material, or an LED display panel may be used. Additionally, the light-emitting panel (110) may be provided in a flat shape, a curved shape, or a flexible display that can be bent.

[0049] The light-emitting panel (110) can be installed in the cabinet (120) of the display device (10) and can be connected to the fastener (121) of the cabinet (120). The light-emitting panel (110) is provided to be detachably connected to the fastener (121) of the cabinet (120), which will be described later, by magnets, and multiple fasteners (121) can be assigned to a single light-emitting panel (110). For example, four fasteners (121) horizontally and three fasteners vertically can be used for a single light-emitting panel (110).

[0050] Of course, the number and arrangement of light-emitting panels (110) placed on the display device (10), and the shape of the fastener (121) for fixing the light-emitting panels (110) can be changed at any time. However, in this embodiment, two or more light-emitting panels (110) may be provided in the horizontal and vertical directions with respect to the display device (10).

[0051] The light-emitting panels (110) can be installed such that the gap between them is minimized, as shown in FIGS. 1 and FIGS. 3. That is, a plurality of light-emitting panels (110) installed on the display device (10) can ensure uninterrupted output for a single image. Alternatively, depending on the situation, the light-emitting panels (110) may be spaced apart from each other, in which case the output of the image can be controlled by taking into account the degree of separation. Such control is performed by the control unit (20) described above, and the output of the image signal can also be adjusted by the substrate (130).

[0052] A cabinet (120) is installed with a light-emitting panel (110). The cabinet (120) is configured such that the back side, which is opposite to the front side where a video signal is output from the light-emitting panel (110), is fixed, and the light-emitting panel (110) can be fixed using a fastener (121).

[0053] A plurality of light-emitting panels (110) may be installed in the cabinet (120). Referring again to FIG. 4 as previously described, two light-emitting panels (110) may be installed horizontally and four vertically in one cabinet (120). That is, light-emitting panels (110) in the first to third horizontal rows may be arranged along the vertical direction in the cabinet (120), and light-emitting panels (110) in the first and second vertical rows may be arranged along the horizontal direction. Of course, the arrangement of the light-emitting panels (110) can be varied.

[0054] The cabinet (120) has a fastener (121) for fixing the light-emitting panel (110). The fastener (121) may be provided to fasten the corners of the light-emitting panel (110). Two or more fasteners (121) may be assigned in the horizontal and vertical directions for one light-emitting panel (110), and the fastener (121) may be attached to the light-emitting panel (110) using magnetism. That is, a worker installing the display device (10) can bring the light-emitting panel (110) into contact with the fastener (121) so that the light-emitting panel (110) is easily fixed to the appropriate position of the cabinet (120) through magnetism.

[0055] The cabinet (120) may be provided with ventilation holes (122) on at least two sides. The ventilation holes (122) discharge heat generated from the back surface of the light-emitting panel (110) and the substrate (130), etc., placed inside the cabinet (120) to the outside. The ventilation holes (122) may be provided on the top, bottom, left, and right sides of the cabinet (120). In addition, a high-frequency absorbing material for electromagnetic shielding may be provided in the ventilation holes (122) of the cabinet (120). The high-frequency absorbing material may be a metal material or a magnetic material. That is, a magnetic material containing metal may be provided around the ventilation holes (122), and the ventilation holes (122) may be formed by a metal material.

[0056] At least two ventilation holes (122) of the cabinet (120) may be provided in the upper and lower sections. Since the display device (10) is mainly installed on a vertical wall and heat convection may occur vertically, the cabinet (120) may have ventilation holes (122) placed in the upper and lower sections respectively to dissipate heat.

[0057] In this embodiment, a plurality of display devices (10) are installed adjacently, and in this case, the ventilation holes (122) provided in the cabinets (120) can be connected to each other. That is, a ventilation hole (122) provided on the lower side of one cabinet (120) can be connected to a ventilation hole (122) provided on the upper side of the cabinet (120) below it. Therefore, when a plurality of cabinets (120) are arranged, the internal spaces of the cabinets (120) can be connected to each other through the ventilation holes (122). Heat inside the cabinet (120) can be released through the ventilation holes (122) that open toward the outer edge from the cabinet (120) placed at the outermost edge.

[0058] Additionally, the ventilation holes (122) provided in the cabinet (120) are made of a metal material or a magnetic material, and when the cabinets (120) are installed adjacently, the ventilation holes (122) can be aligned with each other through magnetic force, etc. Alternatively, the cabinet (120) can be installed at a specific location before the light-emitting panel (110) is installed, as shown in FIG. 9, and a separate connecting member that connects the ventilation holes (122) to each other can be fitted. The connecting member can be made of a high-frequency absorbing material, etc., and can take the form of a clip, etc., and can fix the ventilation holes (122) that are arranged adjacently in two adjacent cabinets (120) at once.

[0059] A heat dissipation member (not shown in the symbol) may be provided on the rear side of the cabinet (120), which is opposite to the front side where the light-emitting panel (110) is installed. As shown in FIGS. 6 and 7, the heat dissipation member may be partially extended toward the rear of the cabinet (120) and may be made of a material such as metal. The heat dissipation member may separate the rear side of the cabinet (120) from the surface of a specific location where the cabinet (120) is installed, and may allow heat generated in the cabinet (120) to be released.

[0060] Additionally, a recess for a handle for carrying may be formed in the cabinet (120). The recess may have a shape that is recessed from the rear of the cabinet (120) toward the front. The cabinet (120) may be oriented vertically, and the recess may be formed on the upper side of the rear of the cabinet (120). The recess may be provided in the shape of an inverted trapezoid, with the width of the top being greater than that of the bottom, and an uneven protrusion may be applied to the top for ease of carrying. The uneven protrusion may be provided only on the top of the recess.

[0061] The substrate (130) is provided within the cabinet (120). The substrate (130) is connected to a control unit (20) provided outside the display device (10) to control the output of an image signal from the light-emitting panel (110). Additionally, the substrate (130) can supply power to the light-emitting panel (110).

[0062] The substrate (130) can control the brightness of the light-emitting panel based on pulse width modulation (PWM). That is, the substrate (130) can achieve energy savings through the configuration described below and can also reduce unnecessary power consumption based on PWM gray scale control. In addition, the substrate (130) can produce a high gray scale level at low brightness through PWM control. Furthermore, the substrate (130) can exclude low brightness output based on gray compensation.

[0063] The substrate (130) may include a plate (131), a power module (132), an input / output module (133), a hub module (134), etc. The plate (131) may correspond to a substrate that serves as a base for installing the modules. The plate (131) may have a through hole (1311) through which a fastener (121) provided in the cabinet (120) passes.

[0064] It has been previously explained that a plurality of fasteners (121) are regularly arranged so that two or more rows of light-emitting panels (110) are installed in the cabinet (120). In this regard, the plate (131) may include various types of through holes (1311) through which the fasteners (121) pass. For example, the plate (131) may be provided with a single through hole (1311a), an extended through hole (1311b, 1311c), etc.

[0065] A single through hole (1311a) may be provided in a through-hole shape in the plate (131) and may be configured such that a single fastener (121) passes through it. Specifically, the single through hole (1311a) may be configured such that a fastener (121) corresponding to a first horizontal row of light-emitting panels (110) in the cabinet (120), or a fastener (121) corresponding to a second horizontal row of light-emitting panels (110) in the cabinet (120) passes through it.

[0066] Additionally, the single through hole (1311a) may be through which a fastener (121) corresponding to a first vertical column of light-emitting panels (110) in the cabinet (120) or a fastener (121) corresponding to a second vertical column of light-emitting panels (110) in the cabinet (120) passes. The single through hole (1311a) is through which fasteners (121) that are individually arranged so as not to be adjacent pass, and may be provided in a circular shape corresponding to the shape of the fastener (121).

[0067] The expanded through-holes (1311b, 1311c) may be through which two or more fasteners (121) pass. Specifically, the expanded through-holes (1311b, 1311c) may be through which a plurality of fasteners (121) arranged adjacently correspond to the light-emitting panels (110) of the first and second horizontal rows in the cabinet (120), respectively. Additionally, the expanded through-holes (1311b, 1311c) may be through which a plurality of fasteners (121) arranged adjacently correspond to the light-emitting panels (110) of the second and third horizontal rows in the cabinet (120), respectively.

[0068] Additionally, the expanded through holes (1311b, 1311c) may be formed by penetrating a plurality of fasteners (121) arranged adjacently to each other, corresponding to the light-emitting panels (110) of the first and second vertical rows in the cabinet (120). The expanded through holes (1311b, 1311c) may be formed by penetrating two or more fasteners (121) arranged adjacently in at least one of the horizontal and vertical directions.

[0069] For example, referring to FIG. 4, the extended through-hole (1311b), which corresponds to the light-emitting panels (110) of the first and second vertical columns respectively and through which two adjacent fasteners (121) pass, is provided in the central part of the substrate (130) in the left-right direction and may form an elliptical shape that is longer horizontally than vertically. On the other hand, as shown in FIG. 4, the extended through-hole (1311b) provided across the light-emitting panels (110) of the first horizontal column and the light-emitting panels (110) of the second vertical column may have an elliptical shape that is longer vertically than horizontally. The same may be true for the extended through-hole (1311b) of this shape when provided across the light-emitting panels (110) of the second horizontal column and the light-emitting panels (110) of the third horizontal column.

[0070] Furthermore, the extended through hole (1311c) may have a shape through which four or more fasteners (121) arranged adjacently in the horizontal and vertical directions are penetrated. For example, the extended through hole (1311c) that spans between the first horizontal row of light-emitting panels (110) and the second horizontal row of light-emitting panels (110), and simultaneously spans between the first vertical row of light-emitting panels (110) and the second vertical row of light-emitting panels (110), may have a total of four fasteners (121) penetrated and form a square or super-elliptical shape.

[0071] In addition, the extended through-hole (1311c) that spans between the second horizontal row of light-emitting panels (110) and the third horizontal row of light-emitting panels (110), and simultaneously spans between the first vertical row of light-emitting panels (110) and the second vertical row of light-emitting panels (110), may also have a shape such as a square or a super-ellipse.

[0072] An inlet section (1312) may be provided on the plate (131). The inlet section (1312) is provided on the lower side of the plate (131) and may be formed so that a fastener (121) corresponding to the third horizontal row of light-emitting panels (110) in the cabinet (120) is positioned thereon. The inlet section (1312) may be provided in a shape in which the circumference of the plate (131) is recessed inward, and since the fastener (121) is positioned in the recessed part, interference between the fastener (121) and the plate (131) can be resolved.

[0073] Furthermore, since a power port (1321) can be placed at the inlet section (1312), the inlet section (1312) of the plate (131) can be offset from the fastener (121) corresponding to the light-emitting panel (110) of the third horizontal row, thereby ensuring a convenient connection of the power port (1321) without hindering the installation of the light-emitting panel (110).

[0074] Inlet sections (1312) may be provided in at least one or more. Inlet section (1312) on the left side of FIG. 4 may be fitted with a fastener (121) of a light-emitting panel (110) that is in the first vertical column and the third horizontal column, and inlet section (1312) on the right side of FIG. 4 may be fitted with at least one, preferably two or more, fastener (121) of a light-emitting panel (110) that is in the second vertical column and the third horizontal column. Furthermore, inlet section (1312) on the right side of FIG. 4 may also be fitted with a fastener (121) of a light-emitting panel (110) that is in the first vertical column and the third horizontal column. The right inlet section (1312) is recessed by the gap between the fasteners (121) corresponding to at least one light-emitting panel (110), and a power port (1321) may be provided in the recessed portion.

[0075] These plates (131) may be formed as a multilayer structure having high-speed data transmission and power distribution functions. For example, the plates (131) may be formed in a form including a power plane, a ground plane, and an insulating material between them. Additionally, each layer of the plates (131) may have an independent shielding structure to prevent interference of high-frequency signals.

[0076] Additionally, the plate (131) may include a thermally conductive material for heat dissipation. The thermally conductive material may be metal, and the same material as described above in the vent (122) may be applied.

[0077] A power module (132) is installed on one side of one surface of the plate (131). One surface of the plate (131) may be a surface facing the cabinet (120), and conversely, the other surface of the plate (131) may be a surface facing the light-emitting panel (110). The power module (132) can transmit power transmitted from outside the cabinet (120) to the light-emitting panel (110).

[0078] Referring to FIG. 8, the power module (132) may be provided in the lower portion of one side of the plate (131). The power module (132) may be provided in the lower central portion of one side of the plate (131) and may be arranged across two input terminals (1312).

[0079] The power module (132) is provided with a power port (1321) for receiving power by connecting to the outside, and the power port (1321) may protrude through the input terminal (1312). That is, in this embodiment, the power port (1321) is made to protrude outward from the plate (131) to facilitate the connection of the power port (1321), while ensuring that the power port (1321) does not protrude beyond a virtual rectangle corresponding to the outermost edge of the plate (131). Through this, in this embodiment, even if a power line is connected to the power port (1321), there is no interference with the installation of the light-emitting panel (110), etc.

[0080] The input / output module (133) transmits a data signal. The data signal transmitted by the input / output module (133) may include a video signal output by the light-emitting panel (110). The input / output module (133) may be provided on the side of the plate (131) where the power module (132) is placed. The input / output module (133) is placed on the other side of one side of the plate (131).

[0081] The input / output module (133) may be positioned at a location sufficiently spaced apart from the power module (132). Referring to FIG. 8, the input / output module (133) may be positioned at the upper right side of one side of the plate (131). The input / output module (133) includes an input port (1331) and an output port (1332). The input port (1331) may be positioned at a location corresponding to the light-emitting panel (110) of the first horizontal row in the cabinet (120), and the output port (1332) may be positioned at a location corresponding to the light-emitting panel (110) of the second horizontal row in the cabinet (120). That is, the input port (1331) and the output port (1332) may be positioned on one side and the other side based on the boundary between the light-emitting panel (110) of the first horizontal row and the light-emitting panel (110) of the second horizontal row.

[0082] The input port (1331) and output port (1332) of the input / output module (133) may be arranged to protrude toward the cabinet (120) from one side of the plate (131) and not to protrude toward the other side of the plate (131). By doing so, the input port (1331) does not interfere with the installation of the light-emitting panel (110).

[0083] The hub module (134) distributes data signals to each of the light-emitting panels (110). The hub module (134) may be provided on one side of the plate (131) and may be connected to each of the light-emitting panels (110). Data signals transmitted from the control unit (20) to the input / output module (133) may be distributed to the light-emitting panels (110) while passing through the hub module (134).

[0084] The hub module (134) includes a connector (1341) connected to a light-emitting panel (110). The connector (1341) is configured such that the light-emitting panel (110) is installed directly without a cable and can be installed on the other side of the plate (131). The connector (1341) is provided on the other side of the plate (131) and can connect a plurality of light-emitting panels (110) to each, and a connecting element (not shown) corresponding to the connector (1341) can be provided on the light-emitting panel (110).

[0085] As previously explained, when the light-emitting panel (110) is attached to the fastener (121) by magnetism, the connecting element of the light-emitting panel (110) can be naturally attached to the connector (1341). The connector (1341) may be positioned corresponding to the central part of the light-emitting panel (110), but the position of the connector (1341) can be determined in various ways considering factors such as ease of installation. However, to prevent the plate (131) from becoming unnecessarily large, the connector (1341) may be positioned in the central part relative to the light-emitting panel (110) and may be positioned in the peripheral part relative to the plate (131).

[0086] The hub module (134) may include hub wiring (1342) that is branched so as to be connected to all light-emitting panels (110) that overlap at least a portion of the plate (131). The hub wiring (1342) may be provided in a form that surrounds the power module (132) on one side of the plate (131).

[0087] That is, the hub module (134) may include a hub wiring (1342) provided on one side of the plate (131) and a connector (1341) provided on the other side of the plate (131). The hub module (134) is provided in a form distributed on the plate (131) excluding the power module (132) and the input / output module (133), and may have a form in which at least a portion penetrates the plate (131) in the thickness direction for the distribution of data signals.

[0088] In this embodiment, by integrating the power module (132), input / output module (133), and hub module (134) at appropriate locations on the plate (131) on the substrate (130), wiring can be virtually eliminated and energy consumption reduced. In addition, this embodiment can significantly increase maintenance efficiency and ensure the reliability of product operation.

[0089] An example contrasting with the present embodiment is shown in FIG. 11. FIG. 11 is a drawing showing a conventional display system. Referring to FIG. 11, a power module (132), a hub module (134), etc. are arranged independently within a cabinet (120), avoiding the area where a fastener (121) is placed. Additionally, as shown in FIG. 11, cables for connecting to a light-emitting panel (110) are arranged in a complex manner in the hub module (134), etc. In such a case, not only is installation inconvenient, but maintenance efficiency is drastically reduced, and power consumption increases.

[0090] On the other hand, in this embodiment, as described above, a substrate (130) having a through hole (1311) can be easily installed on a cabinet (120) in which a fastener (121) protrudes, and wiring can be omitted or minimized by integrally mounting a power module (132) and a hub module (134), etc., on a plate (131) of the substrate (130).

[0091] In addition, in this embodiment, a connector (1341) is disposed on a peripheral portion of the plate (131) of the substrate (130), and a connecting element of the light-emitting panel (110) is directly engaged with the connector (1341). Therefore, this embodiment implements a structure that connects the light-emitting panel (110) and the substrate (130) without a cable, thereby effectively improving not only ease of installation but also operational stability.

[0092] The cabinet (120) may further include a shielding layer (140). The shielding layer (140) is intended to block external electromagnetic waves and may be placed over the plate (131). The shielding layer (140) may be made of metal or the like and may be installed on the plate (131) in correspondence with the position of the power module (132).

[0093] In order to maintain the shielding layer (140) overlapping the plate (131), it may have a through hole (1311) similar to the plate (131). However, the shielding layer (140) has a size corresponding to the power module (132), and for this purpose, the shielding layer (140) may only be provided with an extended through hole (1311c) through which four or more fasteners (121) arranged in the horizontal and vertical directions pass.

[0094] Additionally, the shielding layer (140) may be provided in a form that does not cover the power port (1321) so that the connection status of the power port (1321) can be checked. That is, an inlet (not shown) may be formed in the shielding layer (140) corresponding to the inlet end (1312) of the plate (131). The inlet end of the shielding layer (140) may also be provided in a form that does not interfere with the fastener (121), just like the inlet end (1312) of the plate (131), and may be formed in two or more ways.

[0095] The shielding layer (140) may also have inlet sections (not shown in the drawing) at both ends. The left and right dimensions of the shielding layer (140) are set to cover the power module (132), and the shielding layer (140) may not have an extended through-hole (1311b) through which two vertically arranged fasteners (121) pass. Instead, at both ends of the shielding layer (140), inlet sections may be provided for which two vertically arranged fasteners (121) are seated.

[0096] Through the shape of the shielding layer (140), the present embodiment can be installed so that the shielding layer (140) is stably overlapped on the plate (131), and unnecessary interference can be avoided when installing the light-emitting panel (110) on the fastener (121). Of course, depending on the size or shape of the shielding layer (140), the method of fastening the shielding layer (140) to the fastener (121), etc. can be changed as many times as needed.

[0097]

[0098] In addition to the embodiments described above, the present invention encompasses all embodiments resulting from a combination of the above embodiments and known technology.

[0099] Although the present invention has been described in detail through specific embodiments, this is for the purpose of specifically explaining the invention, and the invention is not limited thereto. It will be apparent that modifications or improvements can be made by those skilled in the art within the technical scope of the invention.

[0100] All simple variations or modifications of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be clarified by the appended claims.

Claims

A plurality of light-emitting panels having a plurality of light-emitting elements arranged and outputting an image signal; A cabinet in which the above plurality of light-emitting panels are installed; and It includes a substrate provided within the cabinet above, The above cabinet is, Fasteners for fastening the corners of the above-mentioned light-emitting panel are arranged, and ventilation holes are provided on at least two sides. The above substrate is, The brightness of the light-emitting panel is controlled based on pulse width modulation, A plate having a through hole through which the above-mentioned fastener passes; A power module installed on one side of one surface of the above plate; An input / output module installed on the other side of one surface of the above plate and transmitting a data signal; and A large display system having energy saving and high brightness, comprising a hub module provided on one side of the plate and connected to each of the light-emitting panels to distribute data signals. In claim 1, the cabinet is, It includes a shielding layer for blocking external electromagnetic waves, A large display system having energy saving and high brightness, wherein a high-frequency absorbing material is provided adjacent to the ventilation opening for electromagnetic shielding. In claim 1, the plate is, It is composed of a multilayer structure, and each layer has an independent shielding structure to prevent interference of high-frequency signals, and A large display system that saves energy and has high brightness, including a thermally conductive material for heat dissipation. In claim 1, the cabinet is, Two or more of the above-mentioned light-emitting panels are installed in the horizontal and vertical directions, respectively, and The above fastener is, A large display system having energy saving and high brightness, wherein at least two are allocated to each of the above-mentioned light-emitting panels in the horizontal and vertical directions, respectively, and are attached to the light-emitting panels using magnetism. In claim 4, the above plate is, A single through hole through which the fastener corresponding to the light-emitting panel of the first horizontal row in the cabinet or the fastener corresponding to the light-emitting panel of the second horizontal row in the cabinet passes; and It includes a plurality of fasteners arranged adjacently to each other and corresponding to the light-emitting panels of the first and second horizontal rows in the cabinet, or an extended through hole through which a plurality of fasteners arranged adjacently to each other and corresponding to the light-emitting panels of the second and third horizontal rows in the cabinet pass. The above-mentioned expanded penetration hole is, Two or more of the above-mentioned fasteners are penetrated and arranged adjacently in at least one of the horizontal and vertical directions, and The above plate is, A large display system having high brightness and energy saving, comprising an inlet section provided on the lower side and positioned so that the fastener corresponding to the light-emitting panel of the third horizontal row in the cabinet is located therein. In Article 5, The above power module includes a power port protruding to the input terminal, and The above input / output module includes an input port and an output port provided respectively at a position corresponding to the light-emitting panel in the first horizontal row of the cabinet and at a position corresponding to the light-emitting panel in the second horizontal row of the cabinet. A large display system having energy saving and high brightness, wherein the hub module comprises a connector installed on the other side of the plate and to which the plurality of light-emitting panels are each connected, and hub wiring connected from the input / output module to the connector. In claim 4, the above plate is, A single through hole through which the fastener corresponding to the light-emitting panel of the first vertical column in the cabinet or the fastener corresponding to the light-emitting panel of the second vertical column in the cabinet passes; and It includes an expanded through hole through which a plurality of the fasteners are passed, which correspond to the light-emitting panels of the first and second vertical columns in the cabinet, respectively, and are arranged adjacent to each other. The above-mentioned expanded penetration hole is, A large display system having energy saving and high brightness, wherein two or more of the said fasteners are penetrated and arranged adjacently in at least one of the horizontal and vertical directions.

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