Multi-display device

Abstract

Provided is a display device comprising: a plurality of display modules arranged in a grid; and connection brackets for fastening the display modules to each other. Each of the display modules comprises: a display panel; a frame-shaped cabinet surrounding the perimeter of the display panel; a pair of first rear frames coupled to the upper edge of the cabinet; a pair of second rear frames coupled to the lower edge of the cabinet; a pair of vertical frames coupled to the rear ends of the second rear frames; and an upper plate fastened to the upper ends of the pair of vertical frames and the upper portions of the pair of first rear frames. The connection brackets include a first connection bracket for fastening a pair of adjacent first rear frames of a pair of display modules to each other.

Description

Multi-display device

[0001] The present invention relates to a multi-display device comprising a plurality of display modules arranged in a grid pattern.

[0002] Digital signage is a communication tool capable of driving corporate marketing, advertising, training effects, and customer experience. It is a display device that provides specific information as well as broadcast programs in public places such as airports, hotels, hospitals, and subway stations.

[0003] Digital signage is a medium that displays various content and commercial advertisements by installing display devices such as LCDs (Liquid Crystal Displays), PDPs (Plasma Display Panels), and OLEDs (Organic Light Emitting Diodes) in designated outdoor locations or on street furniture. Currently, it can be installed along all routes where the public moves, including apartment elevators, inside subway stations, subways, buses, universities, banks, convenience stores, discount stores, and shopping malls.

[0004] Small-sized digital signage can be implemented with a single display panel, but if the size increases, multiple display panels can be used to form a single screen.

[0005] In this case, when the bezel width between adjacent display panels is large, it is important to minimize the bezel size so that the gap between the panels remains visible to the user. Particularly recently, when implementing multi-displays using transparent displays, there is a challenge in that the frame structure for mounting the display devices must be placed only in the non-display area of ​​the display panel.

[0006] The present invention aims to provide a multi-display device comprising a plurality of display modules arranged in a grid pattern.

[0007] A display device is provided comprising a plurality of display modules arranged in a grid; and a connecting bracket connecting the display modules, wherein each display module comprises: a display panel; a frame-shaped cabinet surrounding the perimeter of the display panel; a pair of first rear frames connected to the upper corners of the cabinet; a pair of second rear frames connected to the lower corners of the cabinet; a pair of vertical frames connected to the rear ends of the second rear frames; and an upper plate connected to the upper ends of the pair of vertical frames and the upper ends of the pair of first rear frames, wherein the connecting bracket includes a first connecting bracket connecting the first rear frames to the adjacent pair of display modules.

[0008] The first connecting bracket may include a screw that covers the back surface of a pair of adjacent first rear frames and is fastened to the first rear frame by penetrating the first connecting bracket.

[0009] The vertical frame includes an L-shaped corner bracket located at the top, and the rear edge of the upper plate can be fastened to the top of the corner bracket.

[0010] The above corner bracket includes a first part extended in the same direction as the extension of the first rear frame; and a second part extended in the horizontal direction of the display module at a right angle to the first part, and the first rear frame and the first part may not be connected to each other.

[0011] The upper surface of the upper plate may be flush with the upper surface of the cabinet, and the lower surface of the second rear frame may be flush with the lower surface of the cabinet.

[0012] The display module includes a panel substrate extending from the bottom of the display panel; and a substrate frame located on the back of the bottom portion of the cabinet and accommodating the panel substrate, and the upper plate may have a width corresponding to the front-to-rear width of the substrate frame.

[0013] The substrate frame of the upper display module can be seated on the upper plate.

[0014] It may include a second connecting bracket that connects adjacent cabinets of an adjacent pair of display modules.

[0015] The first rear frame and the second rear frame may include a frame bracket located at the front end of the first rear frame and the second rear frame; a first screw inserted from the front of a first part of the frame bracket and fastened to the first rear frame or the second rear frame; and a second screw inserted from the rear of a second part of the frame bracket and fastened to the cabinet.

[0016] The display device of the present invention can provide a structure that allows a plurality of display modules to be arranged in a grid using only the non-display area of ​​the display module.

[0017] In addition, the display device of the present invention can improve rigidity and reduce manufacturing costs by using a bar-shaped member manufactured by an extrusion molding technique for the frame, which is a support structure.

[0018] In addition, the display device of the present invention is simple to assemble, allowing for easy assembly of multiple display modules. The effects obtainable from the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description below.

[0019] FIG. 1 is a front view illustrating a display device of the present invention.

[0020] FIG. 2 is a rear view illustrating a display device of the present invention.

[0021] FIGS. 3 to 6 are drawings illustrating the assembly sequence of a display device of the present invention.

[0022] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Identical or similar components regardless of drawing symbols will be assigned the same reference number, and redundant descriptions thereof will be omitted. The suffixes "module" and "part" used for components in the following description are assigned or used interchangeably solely for the ease of drafting the specification and do not inherently possess distinct meanings or roles. Furthermore, in describing embodiments disclosed in this specification, if it is determined that a detailed description of related prior art could obscure the essence of the embodiments disclosed in this specification, such detailed description will be omitted. Additionally, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification; the technical concept disclosed in this specification is not limited by the attached drawings, and it should be understood that they include all modifications, equivalents, and substitutions that fall within the spirit and technical scope of the present invention.

[0023] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.

[0024] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0025] A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0026] In this application, terms such as “comprising” or “having” are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0027] FIG. 1 is a front view illustrating a display device (1000) of the present invention, and FIG. 2 is a rear view illustrating a display device (1000) of the present invention.

[0028] Referring to FIGS. 1 and 2, a multi-display device (1000) (1000) can be configured by arranging a plurality of display modules (100) to implement a large screen. It may include a frame structure for fixing the plurality of display modules (100) to arrange them in a grid shape.

[0029] The display module (100) may include a display panel (150) that outputs an image and a cabinet (101) that covers the perimeter of the display panel (150). The display panel (150) may use a light-transmitting display such as a transparent organic light-emitting diode.

[0030] A transparent organic light-emitting diode can be implemented using an OLED that does not require a backlight, and the rear can be seen through the display panel. Since the OLED emits light on its own, the display panel (150) is lightweight and has excellent contrast ratio. The transparent display panel (150) can selectively display information without obscuring the structure on the back, and can switch to a transparent state when no information is being output.

[0031] Considering the characteristics of a transparent display, the part where the image of the display panel (150) is output must be exposed without obstructing it. A frame structure that arranges multiple display panels (150) in a grid must be located on the back of a cabinet (101) located around the perimeter (non-display area, B) of the display panel (150), avoiding the display area.

[0032] Accordingly, a multi-display device (1000) using a transparent display panel (150) requires a frame structure to be implemented in a limited space, while simultaneously requiring structural stability and ease of assembly.

[0033] In a conventional transparent organic light-emitting diode, a panel substrate that controls the display panel (150) is located at the end of the display panel (150), so two or more display panels (150) cannot be arranged in the first direction in which the display panel (150) is located.

[0034] The present invention allows for the arrangement of three or more display modules (100) in the first direction as well as in the second direction which is perpendicular to the first direction by bending the panel substrate in the back direction, thereby minimizing the spacing between adjacent display modules (100) in the first direction.

[0035] The cabinet (101) surrounding the perimeter of the display module (100) forms a U-shape and can cover only the side and front and rear edges (B) of the display panel (150). The portions of the cabinet (101) extending to the front and rear can cover only the bezel portion (B) corresponding to the non-display area of ​​the display panel (150).

[0036] The cabinet (101) can be implemented by assembling a first cabinet (101) that encloses three sides and a second cabinet (101) that consists of one side. A panel substrate bent in the back direction at the first end of the display panel (150) can have a substrate frame (106) that accommodates the substrate assembled thereon.

[0037] The substrate frame (106) is positioned to be perpendicular to the plane of the display panel (150), and the display module (100) can be positioned so that the first direction in which the panel substrate is located is positioned on the lower side in order to stably mount the display module (100). The substrate frame (106) can extend in the rear direction, perpendicular to the cabinet (101), at the bottom of the display module (100).

[0038] After placing another display module (100) on the side of a display module (100), multiple display modules (100) can be arranged continuously in the side (second direction) by connecting the cabinets (101). The display modules (100) connected in the side may include a connecting bracket (109) that fastens the adjacent cabinets (101) together.

[0039] In order to stack a plurality of display modules (100) in a vertical direction, a structure supporting the upper display module (100) must be further provided. FIGS. 3 to 6 are drawings illustrating the assembly sequence of the display device (1000) of the present invention.

[0040] The display module (100) may include a bar-shaped rear frame (104) extending in the rear direction from the corner of the cabinet (101). For ease of manufacturing, the rear frame (104) may be composed of an extruded frame bar (1041) and a frame bracket (1045) having a wider area than the cross-section of the frame bar (1041) at the front end of the frame bar (1041).

[0041] Since the frame bar (1041) is extruded, the cross-section is uniform, the manufacturing process is simple, and the strength can be increased. The frame bracket (1045) is composed of a first part (1046) that is connected to the frame bar (1041) and a second part (1047) that is connected to the cabinet (101), and the second part (1047) protrudes to one side from the frame bar (1041).

[0042] The first screw can be fastened to the frame bar (1041) by penetrating the front of the first part (1046) of the frame bracket (1045), and the second screw can be fastened to the cabinet (101) by penetrating the back of the second part (1047) of the frame bracket (1045).

[0043] In order for the head of the screw inserted into the first part (1046) and the second part (1047) to be on the same plane, the front surface of the second part may have a shape that protrudes forward more than the front surface of the first part (1046).

[0044] The cross-section of the frame bar (1041) may have a cross-section that includes a partially concave groove (1042) for fastening with other members, rather than a rectangular shape. The frame bar (1041) may be processed after extrusion molding to create a screw hole or a stepped structure for fastening at the end.

[0045] The rear frame (104) may include a pair of first rear frames (104a) extending in the rearward direction from the upper corner of the cabinet (101) and a pair of second rear frames (104b) extending in the rearward direction from the lower corner.

[0046] As illustrated in FIG. 3, the first rear frame (104a) may be shorter in length than the second rear frame (104b). The first rear frame (104a) is a structure for connecting to an adjacent display module (100) and simultaneously providing space for mounting an upper frame.

[0047] The second rear frame (104b) is a structure that supports the vertical frame (105) and may have a length corresponding to the front-to-back width of the substrate frame (106) located at the bottom of the display module (100).

[0048] The second rear frame (104b) is flush with the lower surface of the cabinet (101). However, the first rear frame (104a) may be positioned slightly lower than the upper surface of the cabinet (101) to provide a space for the upper plate (107), which will be described later, to be seated. The first rear frame (104a) may be positioned lower than the upper surface of the cabinet (101) by an amount corresponding to the thickness (height) of the upper plate (107).

[0049] Referring to FIG. 4, the first rear frame (104a) can be connected to an adjacent display module (100) using a first connecting bracket (108). The first connecting bracket (108) may have a U-shape that wraps around the rear ends of two adjacent first rear frames (104a) of a pair of display modules (100).

[0050] It may include a protrusion (1084) inserted into a groove of the first rear bracket to guide the precise position of the first connecting bracket (108) and increase the fastening force. The first connecting bracket (108) has a screw inserted from the rear toward the front and is fastened to a pair of first rear frames (104a) and can fix the adjacent display modules (100).

[0051] Since the first rear frame (104a) is located at the top of the display module (100), the gap between the remaining parts of the display module (100) can be widened, so it may include a second connecting bracket (109) that connects the cabinets (101) of adjacent display modules (100) as shown in FIG. 4.

[0052] After connecting adjacent display modules (100) laterally using the first connecting bracket (108) and the second connecting bracket (109), a vertical frame (105) extended vertically can be connected as shown in FIG. 5.

[0053] The vertical frame (105) can be fastened to the rear end of the second rear frame (104b) and can form a gap with the first rear frame (104a) located on the upper side without being directly fastened to the first rear frame (104a).

[0054] The vertical frame (105) may include a corner bracket (1055) at the top. Unlike the bar shape of the rear frame (104) or the vertical frame (105), the corner bracket (1055) forms an L-shape and supports the corner of the upper plate (107) that is seated on the top.

[0055] A screw can be inserted into the upper surface of the corner bracket (1055) to be fastened to the vertical frame (105), and the corner bracket (1055) may include a concave groove in the part where the screw is inserted. A space is provided for the screw (1058) head to be positioned, thereby providing a space for the upper plate (107) to be seated.

[0056] The first part (1056) of the L-shaped corner bracket (1055) is positioned along the extension direction of the first rear frame (104a), and the second part (1057) can be positioned perpendicular to the first part (1056). A screw (1058) can be inserted into the intersection of the first part (1056) and the second part (1057) to be fastened to the vertical part (1051).

[0057] Since it is difficult to extrude the corner bracket (1055) and the vertical part (1051) together when manufacturing the vertical frame (105), the corner bracket (1055) can be manufactured separately from the vertical part (1051) and then fastened to form the vertical frame (105).

[0058] Referring to FIG. 6, it may include an upper plate (107) that is seated on the upper part of a corner bracket (1055) which is the upper part of a first rear frame (104a) and a vertical frame (105). The upper plate (107) can be fixed to the first rear frame (104a) and the corner bracket (1055) by fastening it with screws.

[0059] The corner bracket (1055) is not directly connected to the first rear frame (104a), but is indirectly connected to the first rear frame (104a) by the upper plate (107), so that the upper end of the vertical frame (105) can be fixed.

[0060] Since a long fastener or the like is required to fasten the vertical frame (105) to the first rear frame (104a), the present invention can achieve the effect of fastening the vertical frame (105) to the first rear frame (104a) by omitting the fastening of the vertical frame (105) to the first rear frame (104a) and fastening the vertical frame (105) to the first rear frame (104a) by fastening the upper plate (107).

[0061] The upper plate (107) and the upper surface of the cabinet (101) form a plane, and the front-rear width of the upper plate (107) may correspond to the length of the second rear frame (104b) and the substrate frame (106). The upper plate (107) and the upper surface of the cabinet (101) may provide a seating portion for a display module (100) additionally installed on the upper surface as shown in FIG. 2.

[0062] The display device (1000) of the present invention can provide a structure that allows a plurality of display modules (100) to be arranged in a grid using only the non-display area (B) of the display panel (150).

[0063] In addition, the display device (1000) of the present invention can increase rigidity and reduce manufacturing costs by using a bar-shaped member manufactured by an extrusion molding technique for the frame, which is a support structure.

[0064] In addition, the display device (1000) of the present invention is simple to assemble, so a plurality of display modules (100) can be easily assembled.

[0065] The foregoing detailed description should not be interpreted restrictively in all respects and should be considered exemplary. The scope of the invention shall be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the invention are included within the scope of the invention.

[0066] Regarding various embodiments for implementing the present invention, descriptions that are redundant with those described above in the previous section on the best mode for carrying out the invention are omitted.

[0067] Since the present invention is applicable to display devices in various fields, its industrial applicability is recognized.

Claims

1. Multiple display modules arranged in a grid; and It includes a connecting bracket that connects the display modules above, and Each of the above display modules is, Display panel; A frame-shaped cabinet surrounding the perimeter of the above-mentioned display panel; A pair of first rear frames attached to the upper corners of the cabinet; A pair of second rear frames attached to the lower corners of the cabinet; A pair of vertical frames coupled to the rear end of the second rear frame; and It includes an upper plate fastened to the top of the pair of vertical frames and the top of the pair of first rear frames, The above connecting bracket is A display device comprising a first connecting bracket that fastens a first rear frame, wherein the adjacent pair of the above-mentioned display modules is an adjacent pair of display modules.

2. In Paragraph 1, The first connecting bracket covers the back surface of an adjacent pair of first rear frames. A display device characterized by including a screw that penetrates the first connecting bracket and is fastened to the first rear frame.

3. In Paragraph 1, The above vertical frame includes an L-shaped corner bracket located at the top, and A display device characterized in that the rear edge of the upper plate is fastened to the upper part of the corner bracket.

4. In Paragraph 3, The above corner bracket is a first part extended in the same direction as the extension of the first rear frame; It includes a second part that is perpendicular to the first part and extends in the horizontal direction of the display module, A display device characterized in that the first rear frame and the first part are not connected to each other.

5. In Paragraph 1, The upper surface of the upper plate is flush with the upper surface of the cabinet. A display device characterized in that the lower surface of the second rear frame is flush with the lower surface of the cabinet.

6. In Paragraph 1, The above display module is A panel substrate extending from the bottom of the above-mentioned display panel; It includes a substrate frame located on the back of the lower part of the cabinet and accommodating the panel substrate, and A display device characterized in that the upper plate has a width corresponding to the front-rear width of the substrate frame.

7. In Paragraph 6, A display device characterized by the substrate frame of the upper display module being seated on the upper plate.

8. In Paragraph 1, A display device characterized by including a second connecting bracket for connecting adjacent cabinets of an adjacent pair of display modules.

9. In Paragraph 1, The first rear frame and the second rear frame are A frame bracket located at the front of the first rear frame and the second rear frame; A first screw inserted into the front of the first part of the frame bracket and fastened to the first rear frame or the second rear frame; A display device characterized by including a second screw inserted from the rear of the second part of the frame bracket and fastened to the cabinet.

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