DISPLAY DEVICE AND HINGE ARRANGEMENT OF A DISPLAY MODULE

Abstract

Display device comprising: a plurality of display modules (10); and a hinge arrangement (50) connecting two of the display modules (10), wherein the hinge assembly (50) comprises a pair of brackets (60, 110) which are rotatably coupled to one another to adjust an angle between the two display modules (10), characterized in that on each bracket (60, 110) of the pair of brackets, a movable block (80) to be coupled to the display module (10) is mounted and the movable block (80) is configured to move slidably with respect to the holder (60, 110) to adjust a distance between the two display modules (10), wherein the pair of supports is rotatable such that an angle (θa) between screen fronts of the two display modules (10) is less than 180 degrees when the movable block (80) moves in a direction (A) in which it moves away from a rotation axis of the pair of supports, and wherein the pair of supports is rotatable such that an angle (θb) between screen fronts of the two display modules (10) is more than 180 degrees when the movable block (80) moves in an opposite direction (B) in which it approaches a rotation axis of the pair of supports.

Description

[Field of technology]

[0001] The invention relates to a display device composed of a plurality of display modules, and more particularly to a hinge assembly connecting a plurality of display modules and a display device including the same. [State of the art]

[0002] A display device is a device that converts electrical information into visual information and displays it. The display device includes a self-luminous display panel that emits light itself, such as an LED (light-emitting diode) panel, or a light-receiving / emitting display panel that does not emit light itself and must be supplied with light from a backlight unit, such as a liquid crystal panel.

[0003] When manufacturing a large-format display device, modular display technology can be used, in which a large-format screen is created by continuously tiling a small-format display panel vertically and horizontally. Furthermore, a larger screen can be provided by connecting a plurality of display modules created by tiling a small-format display panel.

[0004] In this case, a curved screen can be implemented by changing an angle between a plurality of display modules as needed.

[0005] Display devices, the plurality of display modules, and a hinge assembly connecting a plurality of the display modules are disclosed in KR 102015011581 A and CN 000104282224 A. CN 000205689013 U discloses a furniture hinge. [Revelation][Technical Task]

[0006] The invention aims to provide a display device in which a curved screen can be implemented by connecting a plurality of display modules to a flat screen.

[0007] The present disclosure aims to provide a display device in which a curvature of a curved screen can be varied by changing an angle between a plurality of display modules.

[0008] The present disclosure aims to provide a display device in which a connected screen can be formed in both concave and convex shapes.

[0009] The present disclosure aims to provide a display device in which a plurality of display modules slidably move such that no gap is generated between the plurality of display modules when an angle between the plurality of display modules is changed. [Technical solution]

[0010] According to the invention, a display device according to claim 1 is provided, which includes a plurality of display modules, and a hinge assembly connecting two of the display modules, wherein the hinge assembly includes a pair of brackets having brackets that are rotatably coupled to each other to adjust an angle between the two display modules, wherein a movable block to be coupled to the display module is mounted on each pair of brackets, and wherein the movable block is configured to move slidably with respect to the bracket to adjust a distance between the two display modules.

[0011] The hinge assembly may further include a hinge pin for rotatably coupling the pair of brackets.

[0012] The hinge assembly may further include a distance adjusting member for adjusting a position of the movable block.

[0013] The distance adjusting element may include a screw that is screwed to the movable block, and the movable block may move slidably as the screw rotates.

[0014] The hinge assembly may further include an anti-separation nut coupled to the screw to prevent separation of the screw.

[0015] The bracket may include a mounting portion to which the movable block is slidably mounted.

[0016] The mounting portion may have an open side to allow the movable block to move into it.

[0017] The hinge assembly may further include a cover coupled to the bracket to cover the open side of the mounting portion.

[0018] The hinge assembly may further include a coupling element for coupling the movable block to the display module.

[0019] The bracket may include an elongated hole extending along a direction of movement of the movable block to allow penetration of the coupling element.

[0020] The bracket may include a guide projection for guiding the movement of the movable block.

[0021] The pair of brackets is rotatable so that an angle between screens of the plurality of display modules is less than 180 degrees.

[0022] When the bracket pair is rotated so that an angle between screens of the plurality of display modules is less than 180 degrees, the movable block moves in a direction away from a rotation axis of the bracket pair.

[0023] The pair of brackets is rotatable so that an angle between screens of the majority of display modules is more than 180 degrees.

[0024] When the bracket pair is rotated so that an angle between screens of the plurality of display modules is more than 180 degrees, the movable block moves in a direction approaching a rotation axis of the bracket pair.

[0025] Another aspect of the present disclosure provides a display device including a plurality of display modules and a hinge assembly connecting the plurality of display modules, the hinge assembly including: a first bracket, a second bracket rotatably coupled to the first bracket, a first movable block coupled to a first display module among the plurality of display modules and mounted to the first bracket so as to be slidably movable, and a second movable block coupled to a second display module adjacent to the first display module among the plurality of display modules and mounted to the second bracket so as to be slidably movable.

[0026] The hinge assembly may be rotatable between a reference position in which a screen of the first display module and a screen of the second display module are parallel, a concave position in which an angle between the screen of the first display module and the screen of the second display module is less than 180 degrees, and a convex position in which the angle between the screen of the first display module and the screen of the second display module is more than 180 degrees.

[0027] In the concave position, the first movable block and the second movable block can move in a direction that moves further apart from each other than in the reference position.

[0028] In the convex position, the first movable block and the second movable block can move in a direction closer to each other than in the reference position.

[0029] Another aspect of the present disclosure provides a hinge assembly for connection to a plurality of display modules, including a pair of brackets rotatably coupled to each other to adjust an angle between the plurality of display modules, wherein each bracket of the pair of brackets has a movable block coupled to the display module coupled thereto, and wherein the movable block is configured to be slidably movable relative to the bracket to adjust a distance between the plurality of display modules. [Beneficial effects]

[0030] According to the disclosed display device, an angle between a plurality of display modules can be varied differently depending on the installation environment.

[0031] Furthermore, a gap between the plurality of display modules generated according to the angle between the plurality of display modules can be avoided by sliding the plurality of display modules when adjusting the angle between the plurality of display modules. [Description of the drawings] Fig. 1 is a perspective view illustrating an external appearance of a display device according to an embodiment of the present disclosure. Fig. 2 is a rear view of the display device of Fig. 1. Fig. 3 represents a display module Fig. 1. Fig. 4 shows a coupling structure of the display module and a hinge assembly Fig. 1. Fig. 5 is a perspective view of the hinge assembly of Fig. 1. Fig. 6 is an exploded view of a pair of brackets and a hinge pin of the hinge assembly of Fig. 1. Fig. 7 represents a bracket, a movable block and a distance adjusting element Fig. 1. Fig. Figure 8 is a plan view in cross section of the hinge assembly of Fig. 1. Fig. Figure 9 is a plan view of the display device when the hinge assembly is Fig. 1 is in a basic position. Fig. 10 is an enlarged plan view in cross section of the vicinity of the hinge assembly of Fig. 9. Fig. Figure 11 is a plan view of the display device when the hinge assembly is Fig. 1 is in a concave position. Fig. 12 is an enlarged plan view in cross section of the vicinity of the hinge assembly of Fig. 10. Fig. Figure 13 is a plan view of the display device when the hinge assembly is Fig. 1 is in a convex position. Fig. 14 is an enlarged plan view in cross section of the vicinity of the hinge assembly of Fig. 13. [Revelation Mode]

[0032] The embodiments described in the present specification and the configurations shown in the drawings are merely examples of preferred embodiments of the present disclosure, and various changes may be made to replace the embodiments and drawings of the present specification at the time of filing the present disclosure.

[0033] Individual terms used in the description may include plural expressions unless the context expressly dictates otherwise. The shape and size of elements may be exaggerated for clarity. Identical reference numbers or symbols in the various drawings of the application represent parts or components that perform essentially the same functions.

[0034] The terms "comprises" and "comprising" are intended to indicate the presence of features, numbers, steps, acts, elements, parts, or combinations thereof described in the specification, and do not preclude the presence or addition of one or more other features, numbers, steps, acts, elements, parts, or combinations thereof.

[0035] It is understood that while the terms “first,” “second,” etc., may be used herein to describe various components, these components are not intended to be limited by these terms.

[0036] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0037] Fig. 1 is a perspective view illustrating an external appearance of a display device according to an embodiment of the present disclosure. Fig. 2 is a rear view of the display device of Fig. 1. Fig. 3 represents a display module Fig. 1.

[0038] Referring to Fig. 1 to 3, a display device 1 is a device that displays information, materials, data, and the like as characters, drawings, graphics, images, and the like, and may include a scoreboard, an electronic display, a screen, a television, a monitor, and the like. Display device 1 may be installed indoors or outdoors using a stand (not shown) or mounted on a wall using a wall mount (not shown).

[0039] The display device 1 may include a plurality of display modules 10 and a hinge assembly 50 that connects the plurality of display modules 10. In the present embodiment, the display device 1 is composed of three display modules 10a to 10c, but it is not limited thereto, and the number of display modules 10 is not limited.

[0040] The plurality of display modules 10 may be continuously connected to each other in the left and right directions. The plurality of display modules 10 may be connected to each other in parallel and may be connected such that, viewed from the top of the display device 1, they are arranged as shown in Fig. 1, are curved forward into a concave shape. Conversely, the plurality of display modules 10 may be connected so that they are curved forward into a convex shape, as viewed from the top of the display device 1, or they may be connected so that they alternately form a concave shape and a convex shape.

[0041] That is, the screen itself of the display module 10 is flat, but the display device 1 may be implemented to have a curved screen by adjusting an angle between the plurality of display modules 10 when the plurality of display modules 10 are connected.

[0042] As in Fig. 2, the hinge assembly 50 that interconnects the plurality of display modules 10 may be coupled to a rear corner portion of the display module 10.

[0043] As in Fig. As shown in Figure 3, the display module 10 may be composed of at least one LED module 30 and a housing 20 in which the at least one LED module 30 is installed. In the present embodiment, the display module 10 includes eight of the LED modules 30-1 to 30-8 arranged as a 4*2 array, with no limitation on the number or arrangement of the LED modules 30. Each of the LED modules 30 may be installed independently in the housing 20 or separately therefrom.

[0044] Thus, by installing a plurality of LED modules 30 in the housing 20 by tiling them in the form of a matrix at the front, rear, left, and right, a large-size screen can be implemented using the small LED module 30. Furthermore, by connecting the plurality of display modules 10 composed of the plurality of LED modules 30 through the hinge assembly 50, a larger screen can be implemented.

[0045] The LED module 30 may include a plurality of LEDs 32 as a light source and a substrate 31 on which the plurality of LEDs 32 are mounted. The plurality of LEDs 32 may be arranged at regular intervals from one another. An installation member 34 for installing the LED module 30 in the housing 20 may be provided on a rear side of the LED module 30.

[0046] The housing 20 may include a support frame 23 forming a skeleton for supporting the LED module 30, and a back plate 26 coupled to the back surface of the support frame 23. The support frame 23 may be provided with a handle 22 for holding and transporting the housing 20 by hand.

[0047] The LED module 30 is installed on a front side of the support frame 23, and an installation groove 24 may be formed on the support frame 23, into which the installation member 34 of the LED module 30 is inserted. The installation member 34 may be securely fixed by a magnetic member (not shown) or the like after being inserted into the installation groove 24.

[0048] A power source 41 for supplying power to the LED module 30 and a control board 40 for controlling the operation of the LED module 30 may be installed on the back of the support frame 23. The back plate 26 may be coupled to the back of the support frame 23 to protect the power source 41 and the control board 40. A slot 27 for dissipating heat within the housing 20 may be formed on the back plate 26.

[0049] Fig. 4 shows a coupling structure of the display module and a hinge assembly Fig. 1. Fig. 5 is a perspective view of the hinge assembly of Fig. 1. Fig. 6 is an exploded view of a pair of brackets and a hinge pin of the hinge assembly of Fig. 1.

[0050] As in Fig. As shown in Figure 4, the hinge assembly 50 for connecting the plurality of display modules 10 may be coupled to the rear corner portion of the display module 10. Specifically, a coupling hole 25 is formed at least at a rear corner portion of the housing 20, and the hinge assembly 50 may include a slotted hole 62 and a coupling hole 81 formed at a position corresponding to the coupling hole 25.

[0051] The hinge assembly 50 may be coupled to the housing 20 by a separate coupling element 100. The coupling element 100 may be attached to the coupling hole 81 and the coupling hole 25 through the elongated hole 62.

[0052] As in Fig. 5 and Fig. 6, the hinge assembly 50 may include a pair of brackets 60 and 110 rotatably coupled together and a pair of movable blocks 80 mounted on the pair of brackets 60 and 110, respectively.

[0053] The hinge assembly 50 may further include a hinge pin 120 for rotatably coupling the pair of brackets 60 and 110. The first bracket 60 may include a hinge receiving portion 67, and the second bracket 110 may include a hinge portion 111 received in the hinge receiving portion 67.

[0054] A hinge hole 68 and a hinge hole 112 into which the hinge pin 120 is inserted may be formed on the first bracket 60 and the second bracket 110, respectively. In a state where the hinge portion 111 of the second bracket 110 is inserted into the hinge receiving portion 67 of the first bracket 60, the hinge hole 68 of the first bracket 60 and the hinge hole 112 of the second bracket 110 may be positioned to correspond to each other, and the hinge pin 120 may be inserted into the hinge hole 68 and the hinge hole 112.

[0055] The hinge pin 120 may include a locking portion 121 for allowing the first bracket 60 to rotate as the hinge pin 120 rotates, and the hinge hole 68 of the first bracket 60 may be provided with a locking portion 69 that is caught in the locking portion 121.

[0056] A hinge screw 130 may be attached to the hinge pin 120 to prevent the hinge pin 120 from being separated from the brackets 60 and 110 and to limit the rotation range of the first bracket 60 and the second bracket 110. For this purpose, a mounting hole 122 may be formed on the hinge pin 120, and an angle limiting portion 113 may be formed on the hinge portion 111 through which the hinge screw 130 penetrates. The angle limiting portion 113 may extend along a circumferential direction of the hinge pin 120 to prevent the hinge pin 120 from being separated in a vertical direction and, at the same time, to limit the rotation range of the first bracket 60 and the second bracket 110 to a certain range.

[0057] Since the pair of brackets 60 and 110 are rotatably coupled based on the hinge pin 120, the hinge assembly 50 can connect the plurality of display modules 10 to each other such that the angle between the plurality of display modules 10 is variable.

[0058] The movable block 80 may be coupled to the display module 10 and configured to be slidably movable relative to the brackets 60 and 100 to which the movable block 80 is mounted. Because the movable block 80 is coupled to the display module 10, a sliding movement of the movable block 80 also allows the display module 10 to move slidably.

[0059] As a result, the movable block 80 can adjust a distance between the plurality of display modules 10. Accordingly, the plurality of display modules 10 can rotate smoothly without interfering with each other, and the gap between the plurality of display modules 10 generated according to the angle between the plurality of display modules 10 can be avoided.

[0060] The hinge assembly 50 may further include a distance adjustment member 90 configured to adjust the position of the movable block 80. The distance adjustment member 90 may include a screw 91 threaded to the movable block 80 and a separation prevention nut 95 coupled to the screw 91 to prevent separation of the screw 91. When the user manually rotates the screw 91, the movable block 80 may slide. The specific configuration of the distance adjustment member 90 is described below.

[0061] The configuration of the first bracket 60 and the configuration of the second bracket 110 are substantially the same except for the hinge receiving portion 67 and the hinge portion 111. Therefore, only the first bracket 60 will be described below, the description of the second bracket 110 will be omitted, and the first bracket 60 may be simply referred to as the bracket 60.

[0062] Fig. 7 represents a bracket, a movable block and a distance adjusting element Fig. 1. Fig. Figure 8 is a plan view in cross section of the hinge assembly of Fig. 1.

[0063] Referring to Fig. 7 and Fig. 8, the bracket 60 may include: a mounting portion 61 on which the movable block 80 is movably mounted, the elongated hole 62 penetrating the coupling member 100 that couples the movable block 80 to the display module 10, a guide projection 63 that guides the movement of the movable block 80, and separation prevention walls 64a and 64b that prevent separation of the distance adjustment member 90.

[0064] The mounting portion 61 may be provided with an open side so that the movable block 80 can be mounted and dismounted, and a cover 70 may be coupled to the open side. For this purpose, a mounting hole 66 and a mounting hole 75 are formed on the bracket 60 and the cover 70, respectively, and a mounting screw 76 is attached to the mounting hole 66 and the mounting hole 75 so that the cover 70 can be coupled to the bracket 60.

[0065] The elongated hole 62 may extend along a movement direction of the coupling element 100, allowing the coupling element 100, which couples the movable block 80 to the display module 10, to be moved. A elongated hole 72, corresponding to the elongated hole 62 of the bracket 60, may also be formed on the cover 70.

[0066] The guide projection 63 can limit the movement of the movable block 80 in the vertical direction and guide the movable block 80 to move in a horizontal direction. The guide projection 63 can be inserted into a guide groove 83 of the movable block 80. The guide groove 83 can extend in the horizontal direction.

[0067] The separation prevention wall 64a and the separation prevention wall 64b can prevent the distance adjustment member 90 from being separated from the bracket 60. Screw insertion holes 65 into which the screw 91 is inserted can be formed on the separation prevention wall 64a and the separation prevention wall 64b, respectively.

[0068] The clearance adjustment member 90 may include a screw 91 screwed to the movable block 80 and a separation prevention nut 95 coupled to the screw 91 to prevent separation of the screw 91. The screw 91 may include a head portion 92 with a larger diameter than the screw insertion hole 65, an externally threaded portion 93 with a thread formed on its outer peripheral surface, and a nut coupling portion 94 formed at one end of the externally threaded portion 93 to couple the separation prevention nut 95.

[0069] The movable block 80 may include the coupling hole 81 to which the coupling member 100 is attached to be coupled with the display module 10, and an internally threaded portion 82 having a thread formed on its inner peripheral surface to be screwed with the externally threaded portion 83 of the screw 91.

[0070] In this configuration, when the distance adjusting member 90 is rotated in a state where the movable block 80 and the distance adjusting member 90 are screwed together, a rotational movement of the distance adjusting member 90 is converted into a linear movement of the movable block 80, so that the movable block 80 can move slidably to the left or to the right in the horizontal direction.

[0071] Fig. Figure 9 is a plan view of the display device when the hinge assembly is Fig. 1 is in a basic position. Fig. 10 is an enlarged plan view in cross section of the vicinity of the hinge assembly of Fig. 9. Fig. Figure 11 is a plan view of the display device when the hinge assembly is Fig. 1 is in a concave position. Fig. 12 is an enlarged plan view in cross section of the vicinity of the hinge assembly of Fig. 10. Fig. Figure 13 is a plan view of the display device when the hinge assembly is Fig. 1 is in a convex position. Fig. 14 is an enlarged plan view in cross section of the vicinity of the hinge assembly of Fig. 13.

[0072] Referring to Fig. 9 and Fig. 10, when the hinge assembly 50 is in a reference position P1, that is, when an angle between the pair of brackets 60 and 110 is 180 degrees, an angle between the plurality of display modules 10a and 10b connected by the hinge assembly 50 may be 180 degrees. Specifically, an angle between the LED module 30a of the display module 10a and the LED module 30b of the display module 10b may be 180 degrees. This means that a screen of the display module 10a and a screen of the display module 10b may be on the same plane.

[0073] End surfaces of the housing 20a of the display module 10a and the housing 20b of the display module 10b may have inclined surfaces 21 that gradually diverge from each other toward the side of the hinge assembly 50. Due to the inclined surfaces 21, even in a convex position P2, Fig. 13 and Fig. 14, which will be described later, no gap may be generated between the LED module 30a and the LED module 30b, and the LED module 30a and the LED module 30b may be in contact with each other at a contact point 35.

[0074] Referring to Fig. 11 and Fig. 12, when the hinge assembly 50 is in a concave position P2, ie, when the angle between the bracket pair 60 and 110 is less than 180 degrees, the angle between the plurality of display modules 10a and 10b connected by the hinge assembly 50 may be an angle θa of less than 180 degrees.

[0075] In this case, the movable blocks 80a and 80b can move smoothly, allowing the display module 10a and the display module 10b to rotate without interfering with each other. That is, the movable blocks 80a and 80b move smoothly in a direction A in which they move away from each other, allowing the display module 10a and the display module 10b to rotate smoothly without interfering with each other.

[0076] Referring to Fig. 13 and Fig. 14, when the hinge assembly 50 is in a convex position P2, ie, when the angle between the bracket pair 60 and 110 is more than 180 degrees, the angle between the plurality of display modules 10a and 10b connected by the hinge assembly 50 may be an angle θb of more than 180 degrees.

[0077] The movable blocks 80a and 80b can slidably move so that no gap is generated between the display module 10a and the display module 10b when the display module 10a and the display module 10b rotate. That is, the movable block 80a and the movable block 80b slidably move in a direction A in which they approach each other, so that no gap may be generated between the display module 10a and the display module 10b. This prevents a seam from being visible between the display module 10a and the display module 10b, and thus improves image quality by maintaining a constant pitch among the LEDs.

[0078] Although the present invention has been described with reference to exemplary embodiments, it should be understood by those skilled in the art that various changes in form and details may be made without departing from the spirit and scope of the present disclosure.

Claims

[1] Display device comprising: a plurality of display modules (10); and a hinge arrangement (50) connecting two of the display modules (10), wherein the hinge assembly (50) comprises a pair of brackets (60, 110) which are rotatably coupled to one another to adjust an angle between the two display modules (10), characterized by , that on each bracket (60, 110) of the pair of brackets, a movable block (80) to be coupled to the display module (10) is mounted and the movable block (80) is configured to move slidably with respect to the holder (60, 110) to adjust a distance between the two display modules (10), wherein the pair of supports is rotatable such that an angle (θa) between screen fronts of the two display modules (10) is less than 180 degrees when the movable block (80) moves in a direction (A) in which it moves away from a rotation axis of the pair of supports, and wherein the pair of supports is rotatable such that an angle (θb) between screen fronts of the two display modules (10) is more than 180 degrees when the movable block (80) moves in an opposite direction (B) in which it approaches a rotation axis of the pair of supports. [2] The display device of claim 1, wherein the hinge assembly (50) further comprises a hinge pin (120) for rotatably coupling the pair of brackets. [3] The display device according to claim 1, wherein the hinge assembly (50) further comprises a distance adjusting member (90) for adjusting a position of the movable block (80). [4] Display device according to claim 3, wherein the distance adjustment element (90) comprises a screw (91) which is screwed to the movable block (80), and the movable block (80) moves slidably when the screw (91) rotates. [5] The display device of claim 4, wherein the hinge assembly (50) further comprises a separation prevention nut (95) coupled to the screw (91) to prevent separation of the screw (91). [6] The display device according to claim 1, wherein the bracket (60, 110) comprises a mounting portion (61) on which the movable block (80) is slidably mounted. [7] A display device according to claim 6, wherein the mounting portion (61) has an open side to allow the movable block (80) to move thereinto. [8] The display device according to claim 7, wherein the hinge assembly (50) further comprises a cover (70) coupled to the bracket (60, 110) to cover the open side of the mounting portion (61). [9] The display device according to claim 1, wherein the hinge assembly (50) further comprises a coupling element (100) for coupling the movable block (80) to the display module (10). [10] The display device according to claim 9, wherein the bracket (60, 110) comprises an elongated hole (62) extending along a direction of movement of the movable block (80) to allow penetration of the coupling element (100). [11] The display device according to claim 1, wherein the bracket (60, 110) comprises a guide projection (63) for guiding the movement of the movable block (80).

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