Display device and tiled display device

Abstract

The present application relates to display devices and tiled display devices, and a display device of one embodiment of the present application includes a display panel, a plurality of mounting units provided on the back surface of the display panel, and a back cover provided on the back surface of the display panel and the plurality of mounting units, wherein the plurality of mounting units each include a panel magnet fixed to the back surface of the display panel and a step control unit provided on both sides of the panel magnet and configured to be movable in a direction perpendicular to one surface of the back cover. Thus, by moving the plurality of step control units in the direction perpendicular to one surface of the back cover, the step height in the Z-axis direction between the display devices can be adjusted.

Description

Technical Field

[0001] This invention relates to display devices and tiling display devices, and more particularly to display devices and tiling display devices comprising a mounting unit configured to detach and mount the display devices to a wall and to easily adjust the step height between multiple display devices. Background Technology

[0002] Display devices used in computer monitors, TVs, mobile phones, etc. include self-emissive organic light-emitting display devices (OLEDs) and liquid crystal display devices (LCDs) that require a separate light source.

[0003] Such display devices are being used in an increasingly diverse range of fields, including not only computer monitors and TVs, but also personal mobile devices. Therefore, research is underway on display devices with a wide display area and a small size and weight.

[0004] On the other hand, in recent years, splicing display devices that connect multiple display devices to increase the display area have been used as billboards, etc. Summary of the Invention

[0005] Technical issues

[0006] The technical problem to be solved by the present invention is to provide a display device and a splicing display device that can easily adjust the step height between multiple display devices attached to a wall.

[0007] Another technical problem to be solved by the present invention is to provide a display device and a splicing display device that can easily adjust the step height between multiple display devices without disassembling multiple display devices attached to a wall.

[0008] Another technical problem to be solved by the present invention is to provide a display device and a splicing display device that can perform the process of splicing multiple display devices on the front of the display device without the need for the space behind the wall.

[0009] Another technical problem to be solved by the present invention is to provide a display device and a splicing display device that precisely aligns multiple display devices while minimizing the boundary area between the multiple display devices, so that the multiple display devices are displayed as a single display device.

[0010] The technical problems of this invention are not limited to those mentioned above. Other technical problems not mentioned above can be clearly understood by those skilled in the art from the following description.

[0011] Technical solution

[0012] To achieve the above aspects, a display device according to one embodiment of the present invention includes: a display panel; a plurality of mounting units disposed on the back side of the display panel; and a rear cover disposed on the back side of the display panel and the plurality of mounting units, wherein each of the plurality of mounting units includes a panel magnet fixed to the back side of the display panel and a plurality of step control units disposed on both sides of the panel magnet and configured to be movable in a direction perpendicular to one surface of the rear cover. Therefore, by moving the plurality of step control units in a direction perpendicular to one surface of the rear cover, the step height between the display devices in the Z-axis direction can be adjusted.

[0013] To achieve the above aspects, a splicing display device according to another embodiment of the present invention includes: a plurality of display devices, each including a display panel and a plurality of mounting units disposed on the back side of the display panel; and a wall portion supporting the plurality of display devices and formed of ferromagnetic material, wherein the plurality of mounting units each include: a panel magnet fixed to the back side of the display panel; a plurality of panel ferromagnets fixed to the back side of the display panel and in contact with the N and S poles of the panel magnets; and a plurality of step control units attached to the wall portion. Therefore, the distance between the wall portion and the display panel can be easily adjusted by sliding the panel magnets, panel ferromagnets, and display panel along the step control units attached to the wall portion.

[0014] Specific details of other implementation methods are included in the detailed implementation and accompanying drawings.

[0015] Beneficial effects

[0016] According to the present invention, the distance and misalignment between multiple display devices can be easily adjusted without disassembling each of the multiple display devices.

[0017] According to the present invention, the arrangement of each display device can be controlled from the front of multiple display devices.

[0018] In the splicing display device of the present invention, which includes multiple display devices, the installation, maintenance and repair of each of the multiple display devices can be easily performed.

[0019] According to the present invention, the distance between multiple display devices can be minimized, thereby minimizing the decrease in focus caused by the boundary area between multiple display devices when viewing an image.

[0020] According to the present invention, the step height between multiple display devices can be easily adjusted so that the entire front surface of the multiple display devices is arranged on a single plane.

[0021] According to the present invention, multiple display devices can be precisely aligned in the X-axis, Y-axis and Z-axis directions.

[0022] The effects of the present invention are not limited to the examples described above, and more diverse effects are included in the present invention. Attached Figure Description

[0023] Figure 1 This is a perspective view of a splicing display device according to an exemplary embodiment of the present invention.

[0024] Figure 2 This is an exploded perspective view of a display device according to an exemplary embodiment of the present invention.

[0025] Figure 3a This is an exploded perspective view of the mounting unit of a display device according to an exemplary embodiment of the present invention.

[0026] Figure 3b This is an enlarged perspective view of a display device according to an exemplary embodiment of the present invention.

[0027] Figure 3c This is an enlarged perspective cross-sectional view of a display device according to an exemplary embodiment of the present invention.

[0028] Figure 4a and Figure 4b It is along Figure 3b A sectional view of line IV-IV'.

[0029] Figure 5a and Figure 5b This is a perspective view of a mounting jig used in a method for manufacturing a splicing display device according to an exemplary embodiment of the present invention.

[0030] Figures 6a to 6c This is a cross-sectional view illustrating a method for manufacturing a splicing display device according to an exemplary embodiment of the present invention.

[0031] Figure 7a and Figure 7b This is a schematic cross-sectional view illustrating the alignment process of a splicing display device according to an exemplary embodiment of the present invention.

[0032] Figures 8a to 8c This is a cross-sectional view illustrating a method for manufacturing a splicing display device according to an exemplary embodiment of the present invention.

[0033] Figure 9 This is a perspective view of an installation fixture according to another exemplary embodiment of the present invention.

[0034] Figures 10a to 10c This is a schematic perspective view illustrating a method for manufacturing a splicing display device according to another exemplary embodiment of the present invention. Detailed Implementation

[0035] The advantages and features of the present invention, as well as the methods for achieving these advantages and features, will become clear from the detailed description of the embodiments described below with reference to the accompanying drawings. However, the present invention is not limited to the exemplary embodiments disclosed herein, but will be practiced in various forms. The exemplary embodiments are provided by way of example only to enable those skilled in the art to fully understand the disclosure and scope of the present invention. Therefore, the present invention will be limited only by the scope of the appended claims.

[0036] The shapes, dimensions, ratios, angles, and numbers illustrated in the accompanying drawings, which are used to explain embodiments of the present invention, are merely examples, and therefore the present invention is not limited thereto. Throughout the specification, the same reference numerals generally refer to the same constituent elements. Moreover, in the following description of the present invention, detailed descriptions of relevant prior art are omitted if it is determined that such detailed descriptions would unnecessarily obscure the gist of the present invention. Terms used herein, such as "comprising," "having," and "formed from," allow for the addition of other constituent elements, unless the term is used in conjunction with the term "only." Any reference to the singular may include the plural unless otherwise expressly stated.

[0037] The constituent elements are interpreted as including the usual error range, even if not otherwise explicitly stated.

[0038] When describing positional relationships, for example, using terms such as "on top of," "above," "below," or "beside," there may be one or more other parts between the two parts, unless "exactly" or "adjacent" is used.

[0039] When it is indicated that one element or layer is disposed "on" another element or layer, the element or layer may be directly on the other element or layer, or the other element or layer may be inserted between them.

[0040] Although the terms "first," "second," etc., are used to describe multiple constituent elements, these constituent elements are not limited by these terms. These terms are merely used to distinguish one constituent element from other constituent elements. Therefore, the first constituent element mentioned below can also be a second constituent element within the scope of the technical concept of this invention.

[0041] Throughout the entire specification, the same reference numerals usually refer to the same constituent elements.

[0042] The dimensions and thicknesses of the constituent elements shown in the accompanying drawings are for illustrative purposes only, and the present invention is not necessarily limited to the dimensions and thicknesses of the constituent elements shown.

[0043] The features of different embodiments of the present invention can be combined or integrated with each other in part or in whole, and can be linked and driven by each other in various technical ways. The embodiments can be implemented independently or in conjunction with each other.

[0044] The invention will now be described with reference to the accompanying drawings.

[0045] Figure 1 This is a perspective view of a splicing display device according to an exemplary embodiment of the present invention. (Refer to...) Figure 1 In an exemplary embodiment of the present invention, a splicing display device TD is formed by connecting a plurality of display devices 100 of an exemplary embodiment of the present invention.

[0046] Reference Figure 1 A splicing display device TD according to an exemplary embodiment of the present invention includes a plurality of display devices 100 and a wall portion 200. The splicing display device TD is implemented by providing a plurality of display devices 100, and can allow for a larger display area for the displayed image.

[0047] Multiple display devices 100 are each attached to the wall portion 200 and arranged as if they were a single display device 100. For example, a tiled display device TD can be implemented by attaching multiple display devices 100 to the wall portion 200 in a tile form. In this case, although not shown in the accompanying drawings, various wiring and cables for electrically connecting the multiple display devices 100 can be provided on the wall portion 200, and the multiple display devices 100 can be driven as if they were a single display device 100. Furthermore, the multiple display devices 100 can also be connected wirelessly without the need for separate wiring or cables.

[0048] On the other hand, because the splicing display device TD is very large, it is difficult to transport multiple display devices 100 together to the installation location. Therefore, after transporting multiple display devices 100 to the installation location, the multiple display devices 100 can be assembled into the splicing display device TD at the installation location.

[0049] Furthermore, when multiple display devices 100 are attached to the wall portion 200, the multiple display devices 100 can be attached as close as possible, so that the distance between the multiple display devices 100 is constant and minimized, allowing the multiple display devices 100 to be viewed as a single display device 100. That is, by precisely aligning the multiple display devices 100 and attaching them to the wall portion 200, the boundary area where no image is displayed can be minimized.

[0050] When manufacturing the splicing display device TD, multiple display devices 100 can be aligned in the X-axis, Y-axis, and Z-axis directions, and can be attached to the wall portion 200. When aligning multiple display devices 100 by moving them in the X-axis direction, the multiple display devices 100 can be aligned such that the left and right edges of multiple display devices 100 arranged in the same column are each aligned in a straight line. Moreover, when aligning multiple display devices 100 by moving them in the Y-axis direction, the multiple display devices 100 can be aligned such that the upper and lower edges of multiple display devices 100 arranged in the same row are each aligned in a straight line. Furthermore, when aligning multiple display devices 100 in the Z-axis direction, the step height between the multiple display devices 100 can be eliminated, so the multiple display devices 100 can be aligned such that the entire front of the multiple display devices 100 is arranged on a single plane.

[0051] If misalignment occurs between multiple display devices 100 in any of the X, Y, and Z axes, the boundary areas between the multiple display devices 100 that are not displaying an image can be visually identified by the user. Furthermore, when the user identifies the boundary areas, it may interfere with the user's focus when viewing the image, and it may be difficult to achieve a clear image.

[0052] Therefore, when attaching multiple display devices 100 to the wall portion 200, it is important to align the multiple display devices 100 in the X-axis, Y-axis, and Z-axis directions respectively. However, slight misalignment may occur between the multiple display devices 100 due to mechanical tolerances or errors that occur during the attachment process by the operator. In a splicing display device TD of an exemplary embodiment of the present invention, even with multiple display devices 100 attached to the wall portion 200, it is possible to perform secondary alignment of the slight misalignment between the multiple display devices 100 in the X-axis, Y-axis, and Z-axis directions.

[0053] Figure 2 This is an exploded perspective view of a display device according to an exemplary embodiment of the present invention. Figure 2 This is an exploded perspective view of the display device 100 as viewed from the rear side.

[0054] Reference Figure 2 The display device 100 includes a protective plate 110, a display panel 120, multiple flexible films 130, a printed circuit board 140, a back cover 150, multiple mounting units 160, multiple adhesive members AD, and multiple fastening members SC.

[0055] Display panel 120 is a component that displays images to a user. Display panel 120 may include, for example, display elements and circuitry, wiring, and components for driving the display elements. The display elements can be defined differently depending on the type of display panel 120. For example, when display panel 120 is an organic light-emitting display panel, the display elements may be organic light-emitting elements comprising an anode, an organic light-emitting layer, and a cathode. For example, when display panel 120 is an inorganic light-emitting display panel, the display elements may be light-emitting diodes (LEDs) or micro-LEDs comprising an n-type semiconductor layer, a p-type semiconductor layer, and a light-emitting layer. However, the present invention is not limited thereto, and the display elements of display panel 120 can be configured in various ways.

[0056] A protective plate 110 is provided to cover the front of the display panel 120. The protective plate 110 is configured to cover the display panel 120 and protect the display panel 120 from external impacts, moisture, heat, etc. The protective plate 110 can be formed of a material that is impact-resistant and light-transmitting. For example, the protective plate 110 can be a substrate formed of glass or a film formed of a plastic material such as polycarbonate (PC), polyimide (PI), polymethyl methacrylate (PMMA), or polyethylene terephthalate (PET), but is not limited thereto.

[0057] On the other hand, the accompanying drawings illustrate the assembly of a display device TD by attaching a display device 100, including a display panel 120 and a protective plate 110, to a wall portion 200. However, the protective plate 110 can be detached from the display panel 120 after the assembly of the display device TD is completed, and only the display panel 120 can be attached to the wall portion 200. That is, the protective plate 110 can be permanently attached to the display panel 120, but it can also be temporarily attached to the display panel 120 only during the assembly process to minimize the impact applied to the display panel 120 during assembly. However, the invention is not limited to this.

[0058] Multiple flexible films 130 are bonded to the back of the display panel 120. Each flexible film 130 is a film on which various components are disposed to supply signals to display elements and circuit units, and can be electrically connected to the display panel 120. The multiple flexible films 130 can supply power voltage, data voltage, etc., to the display panel 120. On the other hand, in Figure 2 The illustration shows six flexible films 130 bonded to the upper edge of the display panel 120. However, the number and arrangement of the flexible films 130 can be varied according to the design, but the invention is not limited thereto.

[0059] Driver ICs, such as gate driver ICs and data driver ICs, can be disposed on multiple flexible films 130. Driver ICs are components that process data used for displaying images and drive signals used to process that data. Driver ICs can be disposed in various ways, such as chip-on-glass (COG), chip-on-film (COF), or tape-on-package (TCP), depending on the mounting method. For ease of explanation, it has been stated that the driver ICs are mounted on multiple flexible films 130 in a chip-on-film manner, but are not limited to this.

[0060] Printed circuit board 140 is electrically connected to multiple flexible films 130. Printed circuit board 140 is a component that supplies signals to a driver IC. Various components for supplying various signals, such as drive signals and data signals, to the driver IC can be disposed on printed circuit board 140. On the other hand, although... Figure 2 The illustration shows a printed circuit board 140, but the number of printed circuit boards 140 can be varied according to the design, but is not limited to this.

[0061] Multiple mounting units 160 are disposed on the back of the display panel 120. The multiple mounting units 160 are components for attaching the display device 100 to the wall portion 200. Furthermore, the multiple mounting units 160 are components for adjusting the step height between the multiple display devices 100 attached to the wall portion 200. At least a portion of each of the multiple mounting units 160 can be fixed to the back of the display panel 120. On the other hand, although... Figure 2 The illustration shows two mounting units 160 on each side of the display panel 120. The number and arrangement of the mounting units 160 are not limited to this.

[0062] Multiple mounting units 160 can be arranged adjacent to the edges of the display panel 120. For example, some of the mounting units 160 can be arranged adjacent to the left edge of the display panel 120, and the remaining mounting units 160 can be arranged adjacent to the right edge of the display panel 120. When the wall portion 200 is formed in a curved shape, even when the multiple display devices 100 are aligned as close as possible, gaps may form between the display panels 120 due to the steps of the wall portion 200. When the mounting units 160 are too far apart from the left and right edges of the display panel 120, Z-axis gaps are generated in the display panels 120 attached to the wall portion 200 due to the mounting units 160, and these gaps can be recognized by the user. Therefore, by arranging each of the multiple mounting units 160 adjacent to the edges of the display panel 120, the gaps between the display panels 120 can be minimized.

[0063] Multiple adhesive members AD are disposed between multiple mounting units 160 and display panel 120. The adhesive members AD can attach at least a portion of the components of the multiple mounting units 160 to the display panel 120. The adhesive members AD can be double-sided tape, but are not limited thereto.

[0064] A rear cover 150 is disposed on the back of the display panel 120. The rear cover 150 may be configured to cover the display panel 120, multiple mounting units 160, multiple flexible films 130, and printed circuit board 140 on the back of the display panel 120. The rear cover 150 may support the display panel 120 on the back of the display panel 120 and protect other components of the display device 100, particularly the multiple flexible films 130 and the printed circuit board 140. The rear cover 150 may be formed of a rigid material, such as a metallic material like aluminum (Al), copper (Cu), zinc (Zn), silver (Ag), gold (Au), iron (Fe), stainless steel (SUS), or Invar, or a material like plastic.

[0065] The rear cover 150 includes a plurality of openings 151 that expose at least a portion of each of the plurality of mounting units 160. The plurality of openings 151 expose the plurality of mounting units 160 from the rear cover 150, such that the plurality of mounting units 160 between the display panel 120 and the rear cover 150 can be attached to the wall portion 200.

[0066] The back cover 150 and the plurality of mounting units 160 are provided with fastening members SC. The fastening members SC can pass through the back of the back cover 150 and be attached to the plurality of mounting units 160. Specifically, the fastening members SC can be attached to the housings of the plurality of mounting units 160 and the back cover 150. The fastening members SC can be, for example, screws, but are not limited thereto.

[0067] In the following text, reference will be made to Figures 3a to 4b More specifically, a plurality of mounting units 160 of a display device 100 according to an exemplary embodiment of the present invention will be described.

[0068] Figure 3a This is an exploded perspective view of the mounting unit of a display device according to an exemplary embodiment of the present invention. Figure 3b This is an enlarged perspective view of a display device according to an exemplary embodiment of the present invention. Figure 3c This is an enlarged perspective cross-sectional view of a display device according to an exemplary embodiment of the present invention. Figure 4a and Figure 4b It is along Figure 3b A sectional view of line IV-IV'. Figure 3b and Figure 3cThis is an enlarged view of the opening 151 of the back cover 150 when viewed from the rear side of the display device 100. Figure 4a This is a cross-sectional view showing the step control unit 163 and the display panel 120 being positioned closest to each other. Figure 4b This is a cross-sectional view showing the step control unit 163 and the display panel 120 being positioned at their furthest points.

[0069] Reference Figures 3a to 3c Each of the multiple mounting units 160 includes a panel magnet 161, a panel ferromagnet 162, a step control unit 163, and a housing 164.

[0070] The panel magnet 161 is a magnet used to attach the display device 100 and the mounting fixture 500, or to attach the display device 100 and the wall portion 200. The panel magnet 161 may be a rod-shaped neodymium (Nd) bipolar magnet, including an N pole 161N and an S pole 161S, but is not limited thereto.

[0071] Panel ferromagnets 162 are disposed on both sides of panel magnet 161. The panel ferromagnets 162 are disposed on opposite sides of the side portion of panel magnet 161. One of the panel ferromagnets 162 can contact the N pole 161N of panel magnet 161, and the other panel ferromagnet 162 can contact the S pole 161S of panel magnet 161. Panel ferromagnets 162 can be formed of various ferromagnetic materials, such as steel, but are not limited thereto. Furthermore, although the accompanying drawings illustrate panel ferromagnets 162 as having a cuboid shape, the shape of panel ferromagnets 162 can be varied and is not limited thereto.

[0072] A step control unit 163 is disposed on both sides of the panel magnet 161 and the panel ferromagnet 162. The step control unit 163 may be disposed on one side of the panel ferromagnet 162. The panel ferromagnet 162 may be disposed between the step control unit 163 and the panel magnet 161. The step control unit 163 is a component of the plurality of mounting units 160 that is directly attached to the wall portion 200, and may be formed of a ferromagnet to form magnetic lines of force with the wall portion 200. The step control unit 163 may be formed of the same ferromagnet as the panel ferromagnet 162 to form magnetic lines of force with the wall portion 200. For example, the step control unit 163 may be formed of steel, but is not limited thereto.

[0073] Reference Figures 3a to 3cThe panel magnet 161, panel ferromagnet 162, and step control unit 163 can be exposed through multiple openings 151 of the rear cover 150. The panel magnet 161, panel ferromagnet 162, and step control unit 163 can overlap with the multiple openings 151 of the rear cover 150. The panel magnet 161, panel ferromagnet 162, and step control unit 163 exposed from the rear cover 150 form magnetic lines of force together with the wall portion 200, and the mounting unit 160 can be attached to the wall portion 200. Reference will be made later. Figures 6a to 6c This needs to be explained.

[0074] Simultaneously refer to Figure 3a as well as Figure 4a and Figure 4b Each step control unit 163 includes a first portion 163a and a second portion 163b. The first portion 163a is exposed from a plurality of openings 151 in the rear cover 150. The first portion 163a can protrude outward from the plurality of openings 151 in the rear cover 150. The first portion 163a can be directly attached to the wall portion 200 when splicing the display device 100, as will be referred to below. Figures 6a to 7b This needs to be explained.

[0075] The second portion 163b is the part not exposed through the plurality of openings 151 of the rear cover 150. The second portion 163b may be the portion extending from the first portion 163a into the space between the display panel 120 and the rear cover 150. Since the second portion 163b does not overlap with the plurality of openings 151, it is able to move only between the display panel 120 and the rear cover 150. Therefore, the step control unit 163 can be configured to move only between the display panel 120 and the rear cover 150 using the second portion 163b.

[0076] As described in this invention, the first portion 163a and the second portion 163b of the step control unit 163 are integrally formed, thus enabling the reciprocating movement of the step control unit 163 to be performed only within a predetermined range. However, the step control unit 163 can be configured by separately forming the first portion 163a and the second portion 163b and attaching the second portion 163, which serves as a stop, to a surface of the first portion 163a having a cuboid shape, but the shape of the step control unit 163 is not limited to this.

[0077] The step control unit 163 is configured to slide from other components of the plurality of mounting units 160 and to control the step height between the display devices 100 in the Z-axis direction during splicing. For example, the housing 164, the panel magnet 161, and the panel ferromagnet 162 can move integrally, and the step control unit 163 can slide along the side of the panel ferromagnet 162 and the side of the housing 164 to the outside of the opening 151 of the rear cover 150.

[0078] For example, the step control unit 163 can be as follows: Figure 4a It is positioned closest to the display panel 120 as shown. Furthermore, refer to... Figure 4b The step control unit 163 can slide along the side of the panel ferromagnet 162 to the outside of the opening 151 of the rear cover 150. That is, the step control unit 163 is configured to move through the opening 151 of the rear cover 150 in a direction perpendicular to the back of the display panel 120.

[0079] In this configuration, the range of motion of the step control unit 163 can be determined by the distance between the display panel 120 and the rear cover 150, and the thickness of the second portion 163b. Firstly, the thickness of the second portion 163b can be less than the distance between the display panel 120 and the rear cover 150. The first portion 163a of the step control unit 163 can move outwards from the rear cover 150 through multiple openings 151. Furthermore, the second portion 163b can move only between the rear cover 150 and the display panel 120. In this configuration, when the thickness of the second portion 163b is the same as the distance between the rear cover 150 and the display panel 120, the step control unit 163 can be fixed between the display panel 120 and the rear cover 150 because the second portion 163b is fixed and cannot move between the display panel 120 and the rear cover 150. On the other hand, as in the display device 100 of an exemplary embodiment of the present invention, when the thickness of the second portion 163b is less than the distance between the display panel 120 and the rear cover 150, the second portion 163b can move between the display panel 120 and the rear cover 150, and according to the movement of the second portion 163b, the first portion 163a can also move outward of the rear cover 150 within a predetermined range. Therefore, the step control range of the step control unit 163 can be determined by the thickness of the second portion 163b and the distance between the display panel 120 and the rear cover 150.

[0080] An adhesive member AD is disposed between the display panel 120 and the mounting unit 160. The adhesive member AD can be disposed between the panel magnet 161, the panel ferromagnet 162, the step control unit 163, and the housing 164 and the display panel 120. The adhesive member AD can attach at least the panel magnet 161 and the panel ferromagnet 162 from the components of the mounting unit 160 to the display panel 120. The adhesive member AD can fix the panel magnet 161 and the panel ferromagnet 162 to the display panel 120 to prevent the panel magnet 161 and the panel ferromagnet 162 exposed from the opening 151 of the rear cover 150 from separating from the housing 164 by moving to the outside of the rear cover 150. Furthermore, the adhesive member AD can be spaced apart from the step control unit 163, allowing the step control unit 163 to slide outwards from the rear cover 150. On the other hand, in the accompanying drawings, the bonding member AD is shown to overlap with the panel magnet 161, the panel ferromagnet 162, the step control unit 163, and the housing 164. However, the bonding member AD may be formed to correspond only to the panel magnet 161 and the panel ferromagnet 162, but is not limited to this.

[0081] A housing 164 is provided that surrounds the panel magnet 161, a plurality of panel ferromagnets 162, and a plurality of step control units 163. The housing 164 may be configured to surround the sides of the panel magnet 161, the plurality of panel ferromagnets 162, and the plurality of step control units 163 between the display panel 120 and the rear cover 150. Furthermore, the housing 164 may be secured to the rear cover 150 by means of a fastening member SC that passes through the rear cover 150 and is threaded into a fastening hole 164H of the housing 164.

[0082] The housing 164 also includes a mounting portion 164a on its side wall. Second portions 163b of the plurality of step control units 163 are mounted on the mounting portion 164a. The mounting portion 164a extends from the side wall of the housing 164 into the space between the plurality of step control units 163 and the bonding member AD, such that the second portions 163b of the plurality of step control units 163 can be mounted thereon.

[0083] Furthermore, multiple step control units 163 can be attached to the adhesive member AD via mounting portions 164a. The multiple step control units 163 are configured to move within a predetermined range from the opening 151 of the rear cover 150 to the outer side of the rear cover 150, and can control the step height between the display devices 100 in the Z-axis direction during assembly. If the multiple step control units 163 are attached to the adhesive member AD, the step control units 163 cannot move to the outer side of the rear cover 150 and the step height between the display devices 100 cannot be adjusted. Therefore, to separate the step control units 163 from the adhesive member AD, mounting portions 164a extending from the side wall of the housing 164 into the space between the step control units 163 and the adhesive member AD can also be provided. However, if the adhesive member AD only overlaps with the panel magnet 161 and the panel ferromagnet 161, the mounting portions 164a of the housing 164 can be omitted, but the invention is not limited thereto.

[0084] Before describing the process of assembling the display device 100 below, we will refer to the following: Figure 5a and Figure 5b This is to illustrate the installation fixture 500 that can be used for splicing.

[0085] Figure 5a and Figure 5b This is a perspective view of a mounting fixture used in a method for manufacturing a splicing display device according to an exemplary embodiment of the present invention.

[0086] Reference Figure 5a and Figure 5b The mounting fixture 500 includes a first support member 501, a second support member 502, a third support member 503, a fourth support member 504, a handle 505, a hinge structure 506, multiple fixture magnets 510, and multiple fixture ferromagnets 520.

[0087] The first support member 501, the second support member 502, the third support member 503, and the fourth support member 504 of the mounting fixture 500 are structures for supporting other components of the mounting fixture 500 and can be implemented in the form of a frame. The first support member 501 and the second support member 502 are supports extending in the X-axis direction, and the third support member 503 and the fourth support member 504 are supports extending in the Y-axis direction. The first support member 501, the second support member 502, the third support member 503, and the fourth support member 504 can be formed of a rigid material, such as metal or plastic. However, the invention is not limited thereto. Furthermore, in Figure 5a and Figure 5b In the description, the mounting fixture 500 is composed of four support members extending in the X-axis and Y-axis directions, but the invention is not limited thereto as long as the support members are structures for supporting the mounting fixture 500.

[0088] Multiple jig magnets 510 are fixed to the third support member 503 and the fourth support member 504. The multiple jig magnets 510 are magnets used for attaching the display device 100 and mounting jig 500. The multiple jig magnets 510 can be rod-shaped neodymium (Nd) bipolar magnets, including an N pole 510N and an S pole 510S, but are not limited thereto. The multiple jig magnets 510 can be fixed to the third support member 503 and the fourth support member 504 by means of an adhesive layer or individual fixing devices. Alternatively, the multiple jig magnets 510 are not directly fixed to the third support member 503 and the fourth support member 504, but can be indirectly fixed to the third support member 503 and the fourth support member 504 by means of fixing to multiple jig ferromagnets 520. Therefore, each of the multiple jig magnets 510 can be disposed between jig ferromagnets 520 facing each other.

[0089] Multiple jig ferromagnets 520 are each disposed on the third support member 503 and the fourth support member 504, and are disposed on both sides of each of the multiple jig magnets 510. The multiple jig ferromagnets 520 can be fixed to the third support member 503 and the fourth support member 504. The multiple jig ferromagnets 520 can be formed of various ferromagnetic materials, such as steel, but are not limited thereto.

[0090] A handle 505, used to allow an operator to grip the mounting fixture 500 and perform operations, can be fixed to the third support 503 and the fourth support 504. By utilizing the handle 505 fixed to the third support 503 and the fourth support 504, the operator can align the mounting fixture 500 and attach the mounting fixture 500 to the display device 100 during the assembly process of the display device 100, and can freely align the display device 100. Figure 5a and Figure 5b The shape of the handle 505 shown is exemplary and not limited thereto.

[0091] Hing structure 506 is fixed to the first support member 501, the second support member 502, the third support member 503, and the fourth support member 504. Hing structure 506 is configured to allow the operator to grip handle 505. Figure 5bThe structure of the handle 505 is shown in the direction of the arrow. Specifically, the handle 505 on the third support member 503 can be rotated inward by a hinge structure 506 fixed between the first support member 501 and the third support member 503 and between the second support member 502 and the third support member 503. The handle 505 on the fourth support member 504 can be rotated inward by a hinge structure 506 fixed between the first support member 501 and the fourth support member 504 and between the second support member 502 and the fourth support member 504. With such a hinge structure 506, the operator can easily detach and attach the mounting fixture 500 and the display device 100. However, the shape and structure of the mounting fixture 500 used in the manufacturing method of the splicing display device TD of an exemplary embodiment of the present invention are not limited to the shape and structure shown in the drawings, and the shape and structure of the mounting fixture 500 can be designed in various ways, as long as it includes fixture magnets 510 and fixture ferromagnets 520 arranged to correspond to the mounting unit 160 of the display device 100.

[0092] On the other hand, although it has been stated that the mounting jig 500 includes multiple jig ferromagnets 520, the multiple jig ferromagnets 520 can be omitted. If the multiple jig ferromagnets 520 are omitted, the dimensions of each of the multiple jig magnets 510 can be designed to correspond to the sum of the dimensions of the panel magnet 161 and the panel ferromagnet 162.

[0093] In the following text, reference will be made to Figures 6a to 6c This document details a method for manufacturing a splicing display device TD using a mounting fixture 500.

[0094] Figures 6a to 6c This is a cross-sectional view illustrating a method for manufacturing a splicing display device according to an exemplary embodiment of the present invention. Figures 6a to 6c For ease of explanation, only the fixture magnet 510 and fixture ferromagnet 520 of the various components of the mounting fixture 500 are illustrated, and only the display panel 120, protective plate 110, panel magnet 161, panel ferromagnet 162, step control unit 163 and rear cover 150 of the various components of the display device 100 are illustrated.

[0095] First, refer to Figure 6aThe mounting fixture 500 is attached to the front of the display device 100. The mounting fixture 500 can be attached to the front of the display device 100 by positioning the respective fixture magnets 510 and fixture ferromagnets 520 of the mounting fixture 500 to correspond to the panel magnet 161, panel ferromagnet 162, and step control unit 163 of the display device 100. For example, the N pole 161N of the panel magnet 161 and the S pole 510S of the fixture magnet 510 are positioned to correspond to each other, and the S pole 161S of the panel magnet 161 and the N pole 510N of the fixture magnet 510 are positioned to correspond to each other, so that the mounting fixture 500 can be attached to the front of the display device 100.

[0096] When the mounting fixture 500 is attached to the display device 100 such that the mounting unit 160 of the display device 100 corresponds to the fixture magnet 510 and fixture ferromagnet 520 of the mounting fixture 500, a first magnetic field line ML1 can be induced in the panel magnet 161, panel ferromagnet 162, step control unit 163, fixture magnet 510 and fixture ferromagnet 520.

[0097] With the operator holding the handle 505 of the mounting fixture 500, the display device 100 attached to the mounting fixture 500 can be positioned along the Z-axis direction by means of the first magnetic line ML1. Figure 6a The arrow in the image indicates the direction of the shift toward the wall portion 200.

[0098] Reference Figure 6b The display device 100 is brought into contact with the wall portion 200. The step control unit 163 on the back of the display device 100 can also contact the wall portion 200. The first portion 163a of the step control unit 163, formed of a ferromagnetic material, can contact the wall portion 200. At this time, the wall portion 200 can have a plate-like shape formed of a metallic material, such as a plate formed of ferromagnetic steel. Therefore, the wall portion 200 can have a simple plate-like shape formed of a metallic material capable of magnetically attaching the step control unit 163, without including complex shapes or complex fixtures. Therefore, in the process of bringing the display device 100 into contact with the wall portion 200, complex steps such as precisely aligning the mounting unit 160 with a specific position on the wall portion 200 can be omitted.

[0099] A second magnetic field line ML2 can be induced between the wall portion 200 and the mounting unit 160 while the display device 100 is in contact with the wall portion 200. However, since the first magnetic field line ML1 is induced by two magnets and six ferromagnets, and the second magnetic field line ML2 is induced by one magnet and five ferromagnets, the size of the first magnetic field line ML1 is larger than the size of the second magnetic field line ML2.

[0100] Furthermore, the fixture magnet 510 of the mounting jig 500 can be configured to have a size larger than that of the panel magnet 161, such that the size of the first magnetic line ML1 is larger than the size of the second magnetic line ML2. Specifically, the magnetic lines can vary depending on the magnet's magnetic force, contact area, and distance between the magnets. As the magnet's magnetic force or contact area increases, the size of the magnetic lines can increase, and as the distance between the magnets decreases, the size of the magnetic lines can also increase. In this case, since the display panel 120 and the protective plate 110 are disposed between the panel magnet 161 and the fixture magnet 510, a gap can exist between the panel magnet 161 and the fixture magnet 510, and the strength of the magnetic lines can be reduced. Therefore, when the size of the fixture magnet 510 is equal to or smaller than the size of the panel magnet 161, the size of the first magnetic line ML1 formed between the mounting unit 160 and the mounting jig 500 can be smaller than the size of the second magnetic line ML2 formed between the mounting unit 160 and the wall portion 200. Therefore, by making the size of the jig magnet 510 larger than the size of the panel magnet 161, the strength of the first magnetic field line ML1 can be greater than the strength of the second magnetic field line ML2. For example, the jig magnet 510 has a larger size than the panel magnet 161, such that the panel magnet 161 and the panel ferromagnet 162 correspond to the jig magnet 510, and the step control unit 163 formed of the ferromagnet can be configured to correspond to the jig ferromagnet 520.

[0101] Furthermore, because the force of the first magnetic line ML1 fixing the mounting fixture 500 and the display device 100 is greater than the force of the second magnetic line ML2 fixing the display device 100 and the wall portion 200, the display device 100 is not completely fixed to the wall portion 200, and the operator can move the display device 100 together with the mounting fixture 500 in a manner that allows the operator to move the mounting fixture 500. Specifically, the operator can move the mounting fixture 500 while the display device 100 is in contact with the wall portion 200, and as... Figure 6b The arrows indicate that the display device 100 can be moved in the X-axis direction, and the display device 100 can also be moved in the Y-axis direction. Therefore, the operator can more precisely align the display device 100 while it is in contact with the wall portion 200, thus achieving final alignment of the display device 100.

[0102] Moreover, such as Figure 6bAs shown, when the second magnetic line ML2 is present, the operator can more easily align the display device 100. That is, when the second magnetic line ML2 exists between the display device 100 and the wall portion 200, an attractive force exists between the display device 100 and the wall portion 200 by means of the second magnetic line ML2. Therefore, compared to the case where the second magnetic line ML2 is not present, the distance the display device 100 moves can be smaller when the operator moves the display device 100 with the same force. Therefore, since the operator can move the display device 100 more precisely by means of the second magnetic line ML2, the operator can more easily align the display device 100.

[0103] However, if the intention is to improve the degree of sliding during the alignment process of the display device 100 by completely removing the second magnetic line ML2, the second magnetic line ML2 can be completely removed by adjusting the strength levels of the fixture magnet 510 of the mounting jig 500 and the panel magnet 161 of the display device 100. That is, by making the magnetic force of the fixture magnet 510 of the mounting jig 500 much greater than the magnetic force of the panel magnet 161 of the display device 100, the second magnetic line ML2 can be removed and only the first magnetic line ML1 can remain.

[0104] Reference Figure 6c The mounting fixture 500 can be detached from the display device 100. That is, after aligning the display device 100 in the desired position, the mounting fixture 500 can be detached from the display device 100 using the handle 505 of the mounting fixture 500.

[0105] Specifically, as referred to above Figure 5a and Figure 5b As described above, the operator can use the hinge structure 506 to rotate the handle 505 of the mounting fixture 500. At this time, as... Figure 6c As shown, the fixture magnet 510 and fixture ferromagnet 520 of the mounting fixture 500 rotate in the direction of arrow ① and can be detached from the display device 100. Figure 6c For ease of illustration, arrow ① is shown as being located on the XZ plane, but in practice, arrow ① is located on the YZ plane.

[0106] As the fixture magnets 510 and ferromagnets 520 of the mounting fixture 500 are removed from the display device 100, the first magnetic line ML1 is removed, and a third magnetic line ML3 with a strength greater than the second magnetic line ML2 can be induced in the wall portion 200, the panel magnet 161, the panel ferromagnet 162, and the step control unit 163. Therefore, after the mounting fixture 500 is completely separated from the display device 100 in the direction of arrow ②, the display device 100 can be attached and fixed to the wall portion 200 by means of the third magnetic line ML3.

[0107] On the other hand, after aligning the display device 100 in the X-axis and Y-axis directions and attaching it to the wall portion 200, the display device 100 can be aligned in the Z-axis direction. When the display device 100 is aligned in the Z-axis direction, a weak magnetic mounting fixture with a weak magnetic force can be used to move the display device 100 in the Z-axis direction without removing the display device 100 from the wall portion 200. Referring to the following... Figure 7a and Figure 7b This describes the process of aligning the display device 100 in the Z-axis direction.

[0108] Figure 7a and Figure 7b This is a schematic cross-sectional view illustrating the alignment process of a splicing display device according to an exemplary embodiment of the present invention. The weak magnetic mounting fixture used when aligning the display device 100 in the Z-axis direction is only different in the magnetic force of the fixture magnet 510 and the size of the fixture ferromagnet 520 from the traditional fixture magnet 510. Figure 5a and Figure 5b The mounting fixture 500 described in the text is different, but the other structures of the weak magnetic force mounting fixture are almost identical. Figure 5a and Figure 5b The installation fixture 500 described herein is the same. Furthermore, for ease of explanation, Figure 7a and Figure 7b Only the fixture magnet 530 and fixture ferromagnet 540 of the weak magnetic force mounting fixture are shown.

[0109] Reference Figure 7a A weak magnetic mounting fixture is attached to the front of the display device 100, which needs to be aligned in the Z-axis direction. The fixture magnet 530 and fixture ferromagnet 540 of the weak magnetic mounting fixture are positioned to correspond to the mounting unit 160 of the display device 100, allowing the weak magnetic mounting fixture to be attached to the front of the display device 100. For example, the fixture magnet 530 and fixture ferromagnet 540 can be configured to correspond to the panel magnet 161 and panel ferromagnet 162. The weak magnetic mounting fixture can be positioned such that the N pole 161N of the panel magnet 161 and the S pole 530S of the fixture magnet 530 correspond to each other, and the S pole 161S of the panel magnet 161 and the N pole 530N of the fixture magnet 530 correspond to each other.

[0110] When the weak magnetic mounting fixture is attached to the display device 100, such that the mounting unit 160 corresponds to the fixture magnet 530 and the fixture ferromagnet 540, a fourth magnetic field line ML4 can be induced in the panel magnet 161, the panel ferromagnet 162, the step control unit 163, the fixture magnet 530, and the fixture ferromagnet 540. Furthermore, as the weak magnetic mounting fixture is attached to the front of the display device 100, a fifth magnetic field line ML5, weaker than the third magnetic field line ML3, can be induced between the mounting unit 160 and the wall portion 200.

[0111] Reference Figure 7b With the operator holding the handle 505 of the weak magnetic mounting fixture, the operator can move the display panel 120 attached to the weak magnetic mounting fixture in the Z-axis direction, that is, in a direction perpendicular to one surface of the display device 100. At this time, as described above... Figure 4a and Figure 4b As described above, only the step control unit 163 is fixed to the wall portion 200, while the remaining components, excluding the step control unit 163, can slide along one surface of the step control unit 163. Therefore, the step height between the display panels 120 in the Z-axis direction can be adjusted by moving the weak magnetic mounting fixture in the Z-axis direction.

[0112] When the display panel 120 and the panel magnet 161 move away from a surface of the wall portion 200, the distance between the second portion 163b of the step control unit 163 and the display panel 120 can increase. Conversely, when the display panel 120 and the panel magnet 161 move closer to a surface of the wall portion 200, the distance between the second portion 163b of the step control unit 163 and the display panel 120 can decrease.

[0113] At this time, because the normal force is greater than the frictional force, the mounting unit 160 remains attached to the wall 200, and the panel magnet 161 and panel ferromagnet 162 can slide against each other with the step control unit 163. Specifically, the normal force acting between the mounting unit 160 and the wall 200 can be the magnetic force of the panel magnet 161. Furthermore, the frictional force between the panel ferromagnet 162 and the step control unit 163 can be determined by multiplying the coefficient of friction by the normal force, and the coefficient of friction has a value less than or equal to 1 in most cases, except in special circumstances. Therefore, because the force that attaches the mounting unit 160 to the wall 200 is large, the panel ferromagnet 162 and panel magnet 161 can slide in the Z-axis direction while the step control unit 163 remains attached to the wall 200.

[0114] Furthermore, a weak magnetic mounting fixture can be used to induce a quantity of magnetic field lines sufficient to keep the mounting unit 160 fixed to the wall portion 200. If a magnet with a strong magnetic force is used as the fixture magnet 530 of the weak magnetic mounting fixture, a larger quantity of magnetic field lines will be induced between the weak magnetic mounting fixture and the mounting unit 160, while only a weak quantity of magnetic field lines will be induced between the mounting unit 160 and the wall portion 200, allowing the display device 100 to be separated from the wall portion 200. Therefore, in order to induce a magnetic field line of sufficient strength to fix the display device 100 to the wall portion 200 when aligning the display device 100 in the Z-axis direction, the fixture magnet 530 of the weak magnetic mounting fixture can have a weaker strength than the fixture magnet 510 of the mounting fixture 500, but a greater strength than the panel magnet 161.

[0115] Therefore, the display device 100 can be aligned in the X-axis and Y-axis directions using a weak magnetic mounting fixture, thereby enabling alignment in the Z-axis direction without separating the display device 100 fixed to the wall portion 200 from the wall portion 200.

[0116] On the other hand, in utilizing Figures 6a to 7b In the process illustrated for manufacturing the splicing display device TD, in order to replace or repair a specific display device 100 or disassemble the splicing display device TD, it may be necessary to separate the corresponding display device 100 from the wall portion 200. Even in this case, the display device 100 can be easily removed from the wall portion 200 using the mounting jig 500, which will be referred to... Figures 8a to 8c Detailed explanation.

[0117] Figures 8a to 8c This is a cross-sectional view illustrating a method for manufacturing a splicing display device according to one embodiment of the present invention.

[0118] First, refer to Figure 8a The operator can move the mounting fixture 500 in the direction of arrow ① to position it in contact with the display device 100. At this time, the operator can align the mounting fixture 500 at the desired position on the display device 100. That is, the mounting fixture 500 can be aligned with the front of the display device 100, such that the plurality of panel magnets 161 and the plurality of fixture magnets 510 correspond to each other, and the plurality of panel ferromagnets 162 correspond to the plurality of fixture ferromagnets 520.

[0119] Then, after aligning the mounting fixture 500 at the desired position, the plurality of fixture magnets 510 and the plurality of fixture ferromagnets 520 of the mounting fixture 500 can be brought into contact with the display device 100 using the handle 505 of the mounting fixture 500. That is, the operator can bring the plurality of fixture magnets 510 and the plurality of fixture ferromagnets 520 of the mounting fixture 500 into contact with the display device 100 by rotating the handle 505 in the direction of arrow ②. Figure 8a For ease of illustration, the arrow ② is shown to be on the XZ plane, but in practice, the arrow ② is on the YZ plane.

[0120] Then, refer to Figure 8b The mounting fixture 500 can be attached to the display device 100 such that multiple panel magnets 161 and multiple fixture magnets 510 correspond to each other, and multiple panel ferromagnets 162 correspond to multiple fixture ferromagnets 520. For example, the fixture magnets 510 of the mounting fixture 500 are configured such that their polarities are opposite to and overlap with the polarities of the panel magnets 161 of the corresponding display device 100. That is, the mounting fixture 500 can be configured such that the N pole 510N of the fixture magnet 510 overlaps with the S pole 161S of the panel magnet 161, and the S pole of the fixture magnet 510 overlaps with the N pole 161N of the panel magnet 161. As described above, with the mounting fixture 500, a first magnetic field line ML1 can be sensed in the fixture magnets 510, fixture ferromagnets 520, panel magnets 161, panel ferromagnets 162, and step control unit 163.

[0121] At this time, as the first magnetic field line ML1 is induced, a second magnetic field line ML2, which is weaker than the first magnetic field line ML1 and the third magnetic field line ML3, is induced in the wall portion 200, the panel ferromagnet 162, the panel magnet 161, and the step control unit 163. That is, the magnetic force between the display device 100 and the mounting fixture 500 can be greater than the magnetic force between the display device 100 and the wall portion 200.

[0122] Therefore, when the operator is Figure 8c When the mounting fixture 500 is pulled in the direction of the arrow shown, the display device 100 attached to the mounting fixture 500 can be separated from the wall portion 200. That is, since the magnetic force of pulling the mounting fixture of the display device 100 is greater than the magnetic force of pulling the wall portion 200 of the display device 100, when the operator pulls the mounting fixture 500, the display device 100 can be separated from the wall portion 200 along the mounting fixture 500. The same operation is repeated for multiple display devices 100, so that the splicing display device TD can be disassembled.

[0123] A typical method for manufacturing a splicing display device involves mounting fixtures on the back of multiple display devices and fastening the fixtures to a wall. However, in the process of using fixtures mounted on the back of the display devices, since the operator is located behind the wall and performs the fastening process, there is a problem of ensuring sufficient space for the operator to perform the work behind the wall. Furthermore, when it is necessary to repair a specific display device among the multiple display devices, the operator needs to move to the wall and separate the fixtures from the wall individually. In addition, to separate a display device, it may be inconvenient not only to disassemble the corresponding display device but also to disassemble the display devices 100 adjacent to that corresponding display device 100.

[0124] Therefore, in the display device 100, the splicing display device TD, and the manufacturing method thereof according to an exemplary embodiment of the present invention, the splicing display device TD can be easily manufactured from the front of the display device 100 using a mounting unit 160 comprising a plurality of panel magnets 161, a plurality of panel ferromagnets 162, and a plurality of step control units 163, and a mounting fixture 500 comprising a plurality of fixture magnets 510 and a plurality of fixture ferromagnets 520. That is, since the display device 100 can be fixed to the wall portion 200 while being held by the mounting fixture 500 from the front of the display device 100, there is no need to separately guarantee the working space behind the wall portion 200 in the display device 100, the splicing display device TD, and the manufacturing method thereof according to an exemplary embodiment of the present invention. Furthermore, since the display device 100 can be easily detached from the wall portion 200 from the front of the display device 100 using the mounting fixture 500, each of the multiple display devices 100 can be easily installed, maintained, and repaired.

[0125] Furthermore, in the display device 100, the splicing display device TD, and the manufacturing method of the splicing display device TD according to an exemplary embodiment of the present invention, it is not necessary to precisely align the display device 100 with the wall portion 200 during the step of contacting the display device 100 with the wall portion 200 using the mounting jig 500. When splicing the display device 100 using a separating device, the fixtures provided on the display device 100 and the wall portion 200, or the fixtures provided on the wall portion 200, should be precisely aligned so that the display device 100 can be attached to the wall portion 200. However, in the display device 100, the splicing display device TD, and the manufacturing method of the splicing display device TD according to an exemplary embodiment of the present invention, the wall portion 200 is configured as a simple plate shape formed of metal material, and the display device 100 and the wall portion 200 are attached to each other once as soon as the plurality of panel magnets 161 and the plurality of panel ferromagnets 162 of the display device 100 contact the wall portion 200. Therefore, even with the use of the wall portion 200, which has a simple shape and structure, no more precise alignment is required during the process of the first contact between the display device 100 and the wall portion 200, making it easier for operators to manufacture the splicing display device TD.

[0126] On the other hand, a magnetic field has the form of a closed curved surface connecting the N and S poles of a magnet, and when a separate ferromagnet is in contact with each of the N and S poles of a magnet, the magnetic field lines can be amplified through the ferromagnet. This amplification of magnetic field lines can be interpreted in the same way as the temporary magnetization of a ferromagnet in contact with each of the N and S poles of a magnet.

[0127] Based on this principle, in the display device 100, the splicing display device TD, and the manufacturing method of the splicing display device TD according to an exemplary embodiment of the present invention, a plurality of panel magnets 161, a plurality of panel ferromagnets 162, and a plurality of step control units 163 disposed on the back side of the display panel 120 can be used to attach the display device 100 to the wall portion 200. That is, since the magnetic lines of force of the plurality of panel magnets 161 can be amplified by the plurality of panel ferromagnets 162 and the plurality of step control units 163, the display device 100 can be fixed to the wall portion 200.

[0128] On the other hand, when the display device 100 is fixed to the wall portion 200 as described above, and the mounting fixture 500, including a plurality of fixture magnets 510, comes into contact with the display device 100, a magnetic field stronger than that induced between the mounting fixture 500 and the display device 100 can be induced. That is, the wall portion 200 can be made of a metallic material rather than a magnet, and the fixture magnets 510 are disposed on the mounting fixture 500. Therefore, when the mounting fixture 500 comes into contact with the display device 100, the magnitude of the first magnetic field ML1 induced in the mounting fixture 500 and the display device 100 can be greater than the magnitude of the second magnetic field ML2 induced in the display device 100 and the wall portion 200. This is because the wall portion 200 is not formed of a magnet that inherently possesses magnetic force, but is formed of a material that allows the induction of magnetic field lines, causing the magnetic field lines to shift toward the plurality of fixture magnets 510 of the mounting fixture 500, which have a magnetic force greater than that of the wall portion 200. This can be understood as the magnetic characteristic corresponding to the electrical characteristic of the wire with lower resistance among multiple wires to which current flows. Therefore, in the display device 100, the splicing display device TD, and the manufacturing method of the splicing display device TD in an exemplary embodiment of the present invention, the operator can easily align the display device 100 using the mounting jig 500 and can easily disassemble the display device 100 from the wall portion 200.

[0129] Furthermore, in the display device 100, the splicing display device TD, and the manufacturing method of the splicing display device TD according to an exemplary embodiment of the present invention, when it is found that a portion of the display device 100 constituting the splicing display device TD is misaligned, the distance and arrangement between the multiple display devices 100 can be easily realigned without disassembling and reassembling the multiple display devices 100 as a whole. That is, since the display devices 100 that need to be realigned can be realigned by attaching the mounting fixture 500 to the display device 100 from the front of the splicing display device TD, the realignment of the display devices 100 can be easily performed without disassembling or reassembling the multiple display devices 100.

[0130] Figure 9 This is a perspective view of an installation fixture according to another exemplary embodiment of the present invention. Figures 10a to 10c This is a schematic perspective view illustrating a method for manufacturing a splicing display device according to another exemplary embodiment of the present invention. Figures 10a to 10c For ease of explanation, only the wall portion 200, panel magnet 161, panel ferromagnet 162, step control unit 163, fixture magnet 910, and fixture ferromagnet 920 are shown. Figure 5a and Figure 5b Compared to the 500 installation fixture, Figures 9 to 10cThe mounting fixture 900 has a semi-circular fixture ferromagnetic body 920, and also includes a fixture housing 930 and a rotating rod 940. Figures 9 to 10c Other structures of the 900 mounting fixture Figure 5a and Figure 5b The installation fixture is roughly the same as that of the 500, so it will not be described in detail.

[0131] Reference Figure 9 and Figure 10a The fixture is provided with a cylindrical fixture housing 930 that surrounds the fixture magnet 910 and the fixture ferromagnet 920. The fixture magnet 910 and the fixture ferromagnet 920 can be disposed inside the cylindrical fixture housing 930.

[0132] The fixture magnet 910 and fixture ferromagnet 920, which are surrounded by the cylindrical fixture housing 930, can be formed into a near-cylindrical shape. For example, the fixture ferromagnet 920 disposed on both sides of the fixture magnet 910 can be semi-circular, and the semi-circular fixture magnet 910 and fixture ferromagnet 920 can be combined with each other to form a cylinder corresponding to the fixture housing 930.

[0133] A rotating rod 940 is attached to the fixture housing 930 of the mounting fixture 900. The rotating rod 940 can serve as a handle 505 for rotating the fixture magnet 910 and fixture ferromagnet 920 surrounded by the fixture housing 930. By rotating the rotating rod 940 attached to the fixture housing 930, the fixture magnet 910 and fixture ferromagnet 920 can be rotated together with the fixture housing 930. By rotatably configuring the fixture magnet 910 and fixture ferromagnet 920 of the mounting fixture 900 according to another exemplary embodiment of the present invention, a display device 100 can be attached to the wall portion 200 using a mounting fixture 900, and the step height between the display devices 100 can be adjusted at this time.

[0134] Reference Figure 10a When the display device 100 is attached to or removed from the wall portion 200, the mounting fixture 900 can be attached to the display device 100 such that the opposite polarities of the panel magnet 161 of the mounting unit 160 and the fixture magnet 910 of the mounting fixture 900 correspond to each other. For example, the mounting fixture 900 can be attached to the display device 100 such that the N pole 161N of the panel magnet 161 corresponds to the S pole 910S of the fixture magnet 910, and the S pole 161S of the panel magnet 161 corresponds to the N pole 910N of the fixture magnet 910.

[0135] Reference Figure 10bWhen adjusting the Z-axis step height between the display devices 100, the Z-axis step height can be adjusted after rotating the fixture magnet 910 and fixture ferromagnet 920 of the mounting fixture 900 by a predetermined angle. For example, when the fixture magnet 910 and fixture ferromagnet 920 are rotated approximately 45 degrees using the rotating rod 940, the overlap area between the fixture magnet 910 and the panel magnet 161 can be reduced. When the overlap area between the fixture magnet 910 and the panel magnet 161 is reduced, the strength of the magnetic lines of force formed between the mounting fixture 900 and the mounting unit 160 can be reduced, and the strength of the magnetic lines of force formed between the mounting unit 160 and the wall portion 200 can be increased. Therefore, by rotating the fixture magnet 910 and fixture ferromagnet 920 of the mounting fixture 900 by a predetermined angle, the step height between the display devices 100 in the Z-axis direction can be adjusted while the display devices 100 are fixed to the wall portion 200, and the mounting fixture 900 can be used as a weak magnetic mounting fixture.

[0136] Reference Figure 10c When the fixture 900 is removed from the display device 100 after alignment is completed, the fixture magnet 910 can be rotated to align the same polarities of the fixture magnet 910 and the panel magnet 161. First, after alignment in the X, Y, and Z axes, the fixture magnet 910 and fixture ferromagnet 920 can be rotated to align the same polarities of the fixture magnet 910 and the panel magnet 161. For example, the fixture magnet 910 can be rotated so that the N pole 910N of the fixture magnet 910 corresponds to the N pole of the panel magnet 161, and the S pole 910S of the fixture magnet 910 corresponds to the S pole 161S of the panel magnet 161. At this time, since the magnetism of the mounting fixture 900 and the magnetism of the panel magnet 161 are combined, the display device 100 can be more firmly fixed to the wall portion 200, and the magnetic force between the display device 100 and the wall portion 200 can be amplified. On the other hand, the mounting fixture 900 can be easily removed from the display device 100 by means of the repulsive force between the fixture magnet 910 and the panel magnet 161, which are arranged in such a way that the same polarity corresponds to each other. Therefore, since the mounting fixture 900 can be separated from the display device 100 while the display device 100 is more firmly fixed to the wall portion 200, misalignment of the display device 100, etc., caused by impact or the like during the process of separating the mounting fixture 900 can be minimized.

[0137] In another exemplary embodiment of the mounting jig 900 of the present invention, jig magnet 910 and jig ferromagnet 920 are rotatably configured such that the display device 100 can be attached to and detached from the wall portion 200 using a mounting jig 900, and the step height between the display devices 100 in the Z-axis direction can be aligned. When the display device 100 is attached to and detached from the wall portion 200, the strength of the magnetic lines of force formed between the display device 100 and the wall portion 200 is weakened, preventing the display device 100 from suddenly attaching to the wall portion 200 due to a strong impact, and allowing the display device 100 to be easily detached from the wall portion 200. Furthermore, the mounting jig 900 with strong magnetism can be attached to the front side of the display device 100, thereby reducing the strength of the magnetic lines of force formed between the display device 100 and the wall portion 200. Furthermore, by attaching a weak magnetic mounting fixture to the front of the display device 100, and moving the display device 100 in the Z-axis direction while it is attached to the wall portion 200, the step height can be adjusted. At this time, when the fixture magnet 910 and fixture ferromagnet 920 of the mounting fixture 900 are rotated at a predetermined angle, the overlap area between the fixture magnet 910 and fixture ferromagnet 920 and the panel magnet 161, panel ferromagnet 162, and step control unit 163 decreases, allowing only weak magnetic lines of force to form between the mounting fixture 900 and the mounting unit 160. Therefore, by rotatably configuring the fixture magnet 910 and fixture ferromagnet 920 of the mounting fixture 900, the strength of the magnetic lines of force formed between the display device 100 and the mounting fixture 900 can be adjusted. Furthermore, the display device 100 can be attached to and removed from the wall portion 200 using a mounting fixture 900, or the step height between the display devices 100 in the Z-axis direction can be easily adjusted.

[0138] Exemplary embodiments of the present invention can also be described as follows:

[0139] According to one aspect of the present invention, a display device is provided. The display device includes: a display panel; a plurality of mounting units disposed on the back side of the display panel; and a rear cover disposed on the back side of the display panel and the plurality of mounting units. Each of the plurality of mounting units includes: a panel magnet fixed to the back side of the display panel; and a plurality of step control units disposed on both sides of the panel magnet and configured to be movable in a direction perpendicular to one surface of the rear cover.

[0140] The rear cover may include multiple openings, each exposing at least a portion of the plurality of mounting units.

[0141] The plurality of step control units may each include: a first portion exposed from the plurality of openings, with at least a portion of the first portion protruding to the outside of the rear cover; and a second portion extending from the first portion into the space between the display panel and the rear cover. The thickness of the second portion may be less than the distance between the display panel and the rear cover.

[0142] Each of the plurality of mounting units may further include: a housing that surrounds the panel magnet and the plurality of step control units between the display panel and the rear cover.

[0143] The display device may also include a fastening member that passes through the rear cover and is coupled to the housing.

[0144] The display device may further include an adhesive member disposed between the display panel and the panel magnet. The adhesive member may be spaced apart from the plurality of step control units.

[0145] The housing may include a mounting portion extending from the side wall of the housing into the space between the plurality of step control units and the bonding member, wherein at least a portion of the plurality of step control units is mounted in the mounting portion.

[0146] Each of the plurality of installation units may further include: a plurality of panel ferromagnets, disposed between the panel magnets and each of the plurality of step control units.

[0147] According to another aspect of the present invention, a splicing display device is also provided. The splicing display device includes: a plurality of display devices, each including a display panel and a plurality of mounting units disposed on the back side of the display panel; and a wall portion supporting the plurality of display devices and formed of ferromagnetic material. The plurality of mounting units each include: a panel magnet fixed to the back side of the display panel; a plurality of panel ferromagnets fixed to the back side of the display panel and in contact with the N and S poles of the panel magnets; and a plurality of step control units attached to the wall portion.

[0148] Magnetic lines of force can be induced between the panel magnet, the plurality of panel ferromagnets, the plurality of step control units, and the wall portion.

[0149] The display panel, the panel magnet, and the plurality of panel ferromagnets can be configured to move in a direction perpendicular to one surface of the wall.

[0150] The panel magnet and the plurality of panel ferromagnets can be configured to slide along a direction perpendicular to one surface of the wall portion with respect to the plurality of step control units.

[0151] Each of the plurality of display devices may further include a rear cover configured to cover the display panel and the plurality of mounting units. The rear cover may include a plurality of openings exposing the panel magnet, the plurality of panel ferromagnets, and a portion thereof of the plurality of step control units.

[0152] The plurality of step control units may each include: a first portion that protrudes outward from the plurality of openings and is attached to the wall portion; and a second portion that extends from the first portion into the space between the display panel and the back cover.

[0153] When the display panel and the panel magnet move in a direction away from one surface of the wall portion, the distance between the second part and the display panel can increase, and when the display panel and the panel magnet move in a direction close to one surface of the wall portion, the distance between the second part and the display panel can decrease.

[0154] While exemplary embodiments of the invention have been described in detail with reference to the accompanying drawings, the invention is not limited thereto and can be implemented in many different forms without departing from the inventive concept. Therefore, the exemplary embodiments of the invention are provided for illustrative purposes only and are not intended to limit the inventive concept. The scope of the inventive concept is not limited thereto. It should be understood that the above exemplary embodiments are illustrative in all respects and do not limit the invention. The scope of protection of the invention should be interpreted based on the appended claims, and all inventive concepts within their equivalents should be interpreted as falling within the scope of the invention.

Claims

1. A display device, comprising: Display panel; Multiple mounting units are disposed on the back of the display panel; as well as A rear cover, disposed on the back side of the display panel and the plurality of mounting units, includes a plurality of openings, each of the plurality of openings exposing at least a portion of each of the plurality of mounting units. Each of the plurality of installation units includes: A panel magnet is fixed to the back side of the display panel; and Multiple step control units are disposed on both sides of the panel magnet and configured to move in a direction perpendicular to one surface of the rear cover. Each of the plurality of mounting units further includes a housing that surrounds the panel magnet and the plurality of step control units between the display panel and the rear cover. Each of the plurality of step control units includes: The first portion is exposed through the plurality of openings, and at least a portion of the first portion protrudes to the outside of the rear cover; and The second part extends from the first part into the space between the display panel and the back cover. The display device further includes an adhesive member disposed between the display panel and the panel magnet, wherein the adhesive member is spaced apart from the plurality of step control units. The housing includes a mounting portion that extends from a side wall of the housing into the space between the plurality of step control units and the bonding member, such that at least a portion of the plurality of step control units is mounted in the mounting portion. Each of the plurality of step control units is configured to slide in a direction perpendicular to one surface of the rear cover while in contact with the flat side of the housing.

2. The display device as claimed in claim 1, wherein, The thickness of the second part is less than the distance between the display panel and the back cover.

3. The display device as claimed in claim 1, further comprising: A fastening component passes through the rear cover and engages with the housing.

4. The display device as claimed in claim 1, wherein, Each of the plurality of installation units further includes: Multiple panel ferromagnets are disposed between each of the panel magnets and each of the multiple step control units.

5. A splicing display device, comprising: Multiple display devices, each including a display panel, multiple mounting units disposed on the back of the display panel, and a back cover disposed to cover the display panel and the multiple mounting units; as well as The wall portion, supporting the plurality of display devices, is formed of ferromagnetic material. Each of the plurality of installation units includes: A panel magnet is fixed to the back side of the display panel; Multiple panel ferromagnets are fixed to the back side of the display panel and in contact with the N and S poles of the panel magnets; and Multiple step control units are attached to the wall portion. Each of the plurality of mounting units further includes a housing that surrounds the panel magnet and the plurality of step control units between the display panel and the rear cover. The rear cover includes multiple openings, each of which exposes at least a portion of each of the multiple mounting units. Each of the plurality of step control units includes: The first part protrudes outward from the plurality of openings and is attached to the wall portion; and The second part extends from the first part into the space between the display panel and the back cover. The display device further includes an adhesive member disposed between the display panel and the panel magnet, wherein the adhesive member is spaced apart from the plurality of step control units. The housing includes a mounting portion that extends from a side wall of the housing into the space between the plurality of step control units and the bonding member, such that at least a portion of the plurality of step control units is mounted in the mounting portion. Each of the plurality of step control units is configured to slide in a direction perpendicular to one surface of the rear cover while in contact with a flat side of the housing.

6. The splicing display device as described in claim 5, wherein, Magnetic lines of force are induced between the panel magnet, the plurality of panel ferromagnets, the plurality of step control units, and the wall portion.

7. The splicing display device as described in claim 5, wherein, The display panel, the panel magnet, and the plurality of panel ferromagnets are configured to be movable in a direction perpendicular to one surface of the wall portion.

8. The splicing display device as described in claim 7, wherein, The panel magnet and the plurality of panel ferromagnets are configured to slide along a direction perpendicular to one surface of the wall portion with respect to the plurality of step control units.

9. The splicing display device as described in claim 5, wherein, The plurality of openings respectively expose the panel magnet, the plurality of panel ferromagnets, and a portion of the plurality of step control units.

10. The splicing display device as described in claim 9, wherein, As the display panel and the panel magnet move in a direction away from one surface of the wall portion, the distance between the second portion and the display panel increases, and As the display panel and the panel magnet move along a direction close to one of the surfaces of the wall portion, the distance between the second portion and the display panel decreases.

Images