Patent Publication Number: US-10327349-B2

Title: Display device

Description:
Pursuant to 35 U.S.C. § 119(a), this application claims the benefit of earlier filing date and right of priority to Korean Patent Application No. 10-2016-0046908, filed on Apr. 18, 2016, the contents of which are hereby incorporated by reference herein in its entirety. 
     BACKGROUND OF THE INVENTION 
     Field of the Invention 
     The present disclosure relates to a display device. 
     Discussion of the Related Art 
     With the development of the information society, various demands for display devices are increasing. Various display devices, such as liquid crystal displays (LCDs), plasma display panels (PDPs), electroluminescent displays (ELDs), and vacuum fluorescent displays (VFDs), have been recently studied and used in response to the various demands for the display devices. 
     A display device using an organic light emitting diode (OLED) is advantageous in that it has better luminance characteristic and viewing angle characteristic than a liquid crystal display, and has a ultra-thin profile because it does not require a backlight unit unlike the liquid crystal display. 
     SUMMARY OF THE INVENTION 
     In one aspect, there is provided a display device including a plurality of stand assemblies, a plurality of center frames correspondingly coupled to upper portions of the plurality of stand assemblies, and a plurality of display panels positioned on at least one side of the plurality of center frames, wherein at least a portion of the plurality of display panels are arranged to form a curved surface, wherein the plurality of center frames are positioned along a curved arrangement corresponding to the curved surface of the at least the portion of the plurality of display panels, and wherein a long side of one center frame of the plurality of center frames is disposed adjacent to a long side of another center frame of the plurality of center frames. 
     Each stand assembly may include a base and a plurality of stand frames positioned to extend upwardly from the base, the plurality of stand assemblies are positioned along the curved arrangement, and a short side of a corresponding center frame of the plurality of center frames is coupled to the plurality of stand frames. 
     A first surface of a center frame of the plurality of center frames may include a first depressed groove configured to accommodate a cable coupled to the display panel. 
     The first depressed groove may extend from a long side of the center frame to a short side of the center frame, wherein the short side is coupled to a corresponding stand assembly. 
     A second surface of the center frame opposite the first surface may include a second depressed groove. 
     The display device may further include a plurality of center frame brackets. Each center frame bracket may be configured to couple a long side of a first center frame to a long side of an adjacent second center frame. 
     Each center frame bracket may include a refractive portion disposed between the corresponding first and second center frames, and first and second connection portions respectively extending from the refractive portion toward the first and second center frames. 
     The first connection portion may be inclined with respect to the second connection portion at a predetermined angle and extends toward the first center frame. 
     The display device may further include a plurality of middle frames coupled to sides of the plurality of center frames. 
     Each middle frame include a body portion shaped to define a first coupling hole, and a first extension portion and a second extension portion extending in opposite directions from a first side of the body portion. A second side of the body portion may be configured to couple to a coupling groove disposed at the edge region of the corresponding center frame via the first coupling hole. 
     A length of the first and second extension portions may be equal to or greater than a sum of a thickness of a corresponding center frame and a thickness of a corresponding display panel positioned on at least one side of the center frame. 
     The display device may further include at least one deco configured to be coupled to a long side of a corresponding display panel of the plurality of display panels. At least a portion of the at least one deco may be externally exposed. 
     The at least one deco may include at least one extension portion that extends toward a display surface of the corresponding display panel and overlaps at least a portion of the display surface. 
     The display device may further include a first magnetic member positioned on at least one first location along a long side of an outermost display panel of the plurality of display panels, and a second magnetic member positioned on at least one second location of the center frame and configured to magnetically couple to the first magnetic member on the at least one first location. 
     The display device may further include a plurality of stand covers correspondingly coupled to the plurality of stand assemblies and configured to shield the plurality of stand assemblies. 
     The plurality of display panels may include a first display panel having a concave display surface, and a second display panel having a convex display surface. 
     The first display panel may correspond to a plurality of front panels and the second display panel corresponds to a plurality of rear panels, and the plurality of rear panels is positioned on the center frame after the plurality of front panels is positioned on the center frame. 
     The plurality of display panels may include a front display panel on a first side of the center frame and a rear display panel on a second side of the center frame opposite the first side. 
     The display device may further include a plurality of middle frames each coupled to an edge region of a corresponding center frame of the plurality of center frames. Each middle frame may include a body portion shaped to define a first coupling hole, and a first extension portion and a second extension portion extending in opposite directions from a first side of the body portion. A second side of the body portion may be configured to couple to a coupling groove disposed at the edge region of the corresponding center frame via the first coupling hole. 
     A middle frame of the plurality of middle frames may be coupled to the edge region of a corresponding center frame such that a distal edge of the second side of the body portion does not contact a first surface of the coupling groove of the corresponding center frame, a first separation space is defined between the distal edge of the second side of the body portion and the first surface of the coupling groove, and a second separation space is defined between one of the first extension portion or the second extension portion and a second surface of the coupling groove. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. In the drawings: 
         FIGS. 1, 2, 3A, 3B, 3C, 4A, 4B, 5A and 5B  illustrate a display device according to an embodiment of the invention; 
         FIGS. 6, 7, 8, 9, 10, 11, 12A, 12B, 13, 14 and 15  illustrate configuration of a stand assembly of a display device according to an embodiment of the invention; 
         FIGS. 16, 17, 18, 19A, 19B, 20, 21, 22, 23, 24A, 24B, 24C, 25A and 25B  illustrate configuration of a center frame assembly according to an embodiment of the invention; 
         FIGS. 26, 27, 28, 29, 30, 31, 32, 33, 34A, 34B, 35, 36, 37A, 37B, 38, 39, 40A, 40B, 41A, 41B, 41C ,  42 A and  42 B illustrate configuration of a panel assembly according to an embodiment of the invention; and 
         FIGS. 43, 44, 45, 46, 47 and 48  illustrate configuration of a cover assembly according to an embodiment of the invention. 
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     Reference will now be made in detail embodiments of the invention examples of which are illustrated in the accompanying drawings. Since the present invention may be modified in various ways and may have various forms, specific embodiments are illustrated in the drawings and are described in detail in the present specification. However, it should be understood that the present invention are not limited to specific disclosed embodiments, but include all modifications, equivalents and substitutes included within the spirit and technical scope of the present invention. 
     The terms ‘first’, ‘second’, etc. may be used to describe various components, but the components are not limited by such terms. The terms are used only for the purpose of distinguishing one component from other components. For example, a first component may be designated as a second component without departing from the scope of the present invention. In the same manner, the second component may be designated as the first component. 
     The term “and/or” encompasses both combinations of the plurality of related items disclosed and any item from among the plurality of related items disclosed. 
     When an arbitrary component is described as “being connected to” or “being linked to” another component, this should be understood to mean that still another component(s) may exist between them, although the arbitrary component may be directly connected to, or linked to, the second component. In contrast, when an arbitrary component is described as “being directly connected to” or “being directly linked to” another component, this should be understood to mean that no component exists between them. 
     The terms used in the present application are used to describe only specific embodiments or examples, and are not intended to limit the present invention. A singular expression can include a plural expression as long as it does not have an apparently different meaning in context. 
     In the present application, the terms “include” and “have” should be understood to be intended to designate that illustrated features, numbers, steps, operations, components, parts or combinations thereof exist and not to preclude the existence of one or more different features, numbers, steps, operations, components, parts or combinations thereof, or the possibility of the addition thereof. 
     Unless otherwise specified, all of the terms which are used herein, including the technical or scientific terms, have the same meanings as those that are generally understood by a person having ordinary knowledge in the art to which the present invention pertains. The terms defined in a generally used dictionary must be understood to have meanings identical to those used in the context of a related art, and are not to be construed to have ideal or excessively formal meanings unless they are obviously specified in the present application. 
     The following exemplary embodiments of the present invention are provided to those skilled in the art in order to describe the present invention more completely. Accordingly, shapes and sizes of elements shown in the drawings may be exaggerated for clarity. 
     Hereinafter, embodiments of the invention are described using a liquid crystal display panel as an example of a display panel. Other display panels may be used. For example, a plasma display panel (PDP), a field emission display (FED) panel, and an organic light emitting diode (OLED) display panel may be used. 
     In what follows, a display panel may include a first long side, a second long side opposite the first long side, a first short side adjacent to the first long side and the second long side, and a second short side opposite the first short side. 
     In embodiments disclosed herein, the first short side may be referred to as a first side area; the second short side may be referred to as a second side area opposite the first side area; the first long side may be referred to as a third side area that is adjacent to the first side area and the second side area and is positioned between the first side area and the second side area; and the second long side may be referred to as a fourth side area that is adjacent to the first side area and the second side area, is positioned between the first side area and the second side area, and is opposite to the third side area. 
     Embodiments of the invention describe and illustrate that lengths of the first and second long sides are longer than lengths of the first and second short sides for the convenience of explanation. However, the lengths of the first and second long sides may be almost equal to the lengths of the first and second short sides. 
     In the following description, a first direction may be a direction parallel to the long sides of the display panel, and a second direction may be a direction parallel to the short sides of the display panel. Further, a third direction may be a direction vertical to the first direction and/or the second direction. The first direction and the second direction may be commonly referred to as a horizontal direction. Further, the third direction may be referred to as a vertical direction. 
     Further, a specific figure and/or specific contents of the specification may be replaced and combined with other figures and/or other contents of the specification unless they are incompatible. 
       FIGS. 1 to 5  illustrate a display device according to an embodiment of the invention. 
     As shown in  FIGS. 1 to 5 , a display device  1  according to an embodiment of the invention may include a plurality of panel assemblies  10  and  20 , in which at least a portion is curved. 
     As shown in  FIGS. 1 and 2 , the display device  1  may include a frame (or a center frame)  30  and the panel assemblies  10  and  20  attached to the frame  30 . 
     The frame  30  may be a component structurally supporting the display device  1 . The frame  30  may be made of aluminum, so as to provide rigidity. 
     The frame  30  may be formed in a curved shape. For example, the frame  30  may be formed in at least one of a concave curved shape and/or a convex curved shape. For example, the frame  30  may be configured such that the frame  30  of the concave curved shape and the frame  30  of the convex curved shape are disposed. 
     The panel assemblies  10  and  20  may be formed in a curved shape. In other words, the panel assemblies  10  and  20  may be formed in a curved shape corresponding to the frame  30 . In other words, the panel assemblies  10  and  20  may be formed in at least one of a concave curved shape and/or a convex curved shape. 
     The panel assemblies  10  and  20  may include a front panel  10  and a rear panel  20 . The front panel  10  and the rear panel  20  may be positioned on one surface and the other surface of the frame  30 . For example, the front panel  10  including first to fourth front panels  11 ,  13 ,  15 , and  17  may be positioned on one surface of the frame  30 , and the rear panel  20  including first to fourth rear panels  21 ,  23 ,  25 , and  27  may be positioned on the other surface of the frame  30 . 
     The panel assemblies  10  and  20  may be disposed such that their long sides are perpendicular to the ground. Namely, the panel assemblies  10  and  20  may be disposed such that their long sides are adjacent to each other in a longitudinal direction. 
     Alternatively, the panel assemblies  10  and  20  may be disposed such that their short sides are perpendicular to the ground. In this instance, it may be appropriate to display a long side of an image in a horizontal direction. 
     The panel assemblies  10  and  20  on one surface and the other surface of the frame  30  may have shapes corresponding to each other. For example, the first front panel  11  and the fourth rear panel  27  may have a concave shape and a convex shape corresponding to each other. 
     Because the panel assemblies  10  and  20  are disposed on one surface and the other surface of the frame  30  as described above, a displayed image may be observed at various positions. For example, when a panel is installed in a lobby such as an airport, an image can be effectively transferred. 
     As shown in  FIGS. 3 and 4 , the display device  1  may be configured in various forms. 
     As shown in  FIG. 3A , the display device  1  may have a shape based on first to fourth frames  31  to  34 . For example, the third and fourth frames  33  and  34  of a concave shape may be positioned subsequent to the first and second frames  31  and  32  of a convex shape. In this instance, the display device  1  may have a wave shape. 
     As shown in  FIG. 3B , the display device  1  may have a shape based on first to third frames  31  to  33 . For example, a plurality of convex-shaped frames  30  and a concave-shaped frame  30  may be coupled, or vice versa. 
     As shown in  FIG. 3C , the display device  1  may be configured such that the number of concave-shaped frame  30  is different from the number of convex-shaped frame  30 . Namely, the left and right sides of the display device  1  may be asymmetrical. 
     As shown in  FIGS. 4A and 4B , at least a portion of the display device  1  may be disposed in a circular shape. Namely, a plurality of concave-shaped frames  30  may be successively disposed. 
     As shown in  FIG. 4A , when first to fourth frames  31  to  34  of a concave shape are successively disposed, a portion of the display device  1  may be formed in a circular shape. 
     As shown in  FIG. 4B , when frames  30  of the same shape are successively disposed, the display device  1  may be entirely formed in a circular shape. 
     As shown in  5 A and  5 B, at least a portion of the display device  1  according to the embodiment of the invention may be flat formed. 
     As shown in  FIG. 5A , the display device  1  may be entirely formed in a flat shape. For example, panel assemblies  10  and  20  may be disposed on both side surfaces of a flat frame  30 . The adjacent panel assemblies  10  and  20  may partially overlap each other. The panel assemblies  10  and  20  may be coupled in predetermined order in consideration of the overlapping. 
     As shown in  FIG. 5B , a portion of each of panel assemblies  10  and  20  may be in a flat shape, and another portion may be in a curved shape. For example, first and fourth front panels  11  and  17 , first and fourth rear panels  21  and  27 , and frames  30  corresponding to the first and fourth front and rear panels may have a flat shape. On the other hand, second and third front panels  13  and  15 , second and third rear panels  23  and  25 , and frames  30  corresponding to the second and third front and rear panels may have a curved shape. 
       FIGS. 6 to 15  illustrate configuration of a stand assembly of the display device according to the embodiment of the invention. 
     As shown in  FIGS. 6 to 15 , the display device  1  according to the embodiment of the invention may include a stand assembly  40  supporting the display device  1 . 
     As shown in  FIGS. 6 and 7 , the stand assembly  40  may include a plurality of stand assemblies. For example, the stand assembly  40  may include first to fourth stand assemblies  40   a  to  40   d.    
     The first to fourth stand assemblies  40   a  to  40   d  may be independently assembled. The independently assembled first to fourth stand assemblies  40   a  to  40   d  may be coupled to form one stand assembly  40 . The first to fourth stand assemblies  40   a  to  40   d  may correspond to a specific location of the curved display device  1 . In the following description, a description of one of the stand assembly  40  and the first to fourth stand assemblies  40   a  to  40   d  will be replaced with a description of the others because the stand assemblies  40  and  40   a  to  40   d  may have a difference only in a curved shape. 
     The stand assembly  40  may include a base  41 , a stand frame  45  that is coupled to the base  41  and stands, a frame bar  43  coupled to the stand frame  45  in a transverse direction, and a base frame  47  on the base  41 . 
     The base  41  may be formed in a plate shape. Namely, the base  41  may form a bottom surface of the stand assembly  40 . The base  41  may include a plurality of through holes for coupling various components. 
     The stand frame  45  may be a bar coupled to the base  41  in a longitudinal direction. One end of the stand frame  45  may be coupled to the base  41 , and the other end may upwardly face. The stand frame  45  may include first and second stand frames  45   a  and  45   b  (see  FIG. 8 ). 
     The frame bar  43  may be coupled to the stand frame  45 . In other words, the frame bar  43  may be transversely coupled to the stand frame  45  longitudinally coupled to the base  41 . The frame bar  43  may be positioned between the first and second stand frames  45   a  and  45   b . The frame bar  43  may strengthen rigidity of the stand frame  45 . The frame bar  43  may have a curved shape corresponding to a disposition of the stand frame  45 . 
     The base frame  47  may be coupled to a plane of the base  41 . The base frame  47  coupled to the plane of the base  41  may provide rigidity for the base  41  so that the base  41  is not twisted. The base frame  47  may include first and second base frames  47   a  and  47   b  coupled to the base  41  along both sides of the base  41 . 
     As shown in  FIG. 8 , the stand assembly  40  may include first and second frame bars  43   a  and  43   b  positioned between the first and second stand frames  45   a  and  45   b . The first and second frame bars  43   a  and  43   b  may provide rigidity for a structure of the first and second stand frames  45   a  and  45   b . The first and second frame bars  43   a  and  43   b  may make the first and second stand frames  45   a  and  45   b  be spaced apart from each other. The frame  30  may be inserted in a separation space formed by the first and second frame bars  43   a  and  43   b.    
     The stand assembly  40  may include a ball caster  49 . 
     The ball casters  49  may be coupled to a plurality of positions of a lower surface of the base  41 , so as to support the stand assembly  40 . The ball casters  49  may enable each stand assembly  40  to move. For example, a ball and/or a wheel included in the ball caster  49  may rotate and thus may change a position of the stand assembly  40 . 
     The ball caster  49  may be coupled to the base  41 . For example, the ball caster  49  may be coupled to the second base  41   b  underlying the first base  41   a.    
     As shown in  FIG. 9 , the frame  30  may be coupled to the stand assembly  40 . The frame  30  may be positioned between the first and second stand frames  45   a  and  45   b . For example, the frame  30  may be positioned between  1   a ,  1   b  and  1   c  stand frames  45   a   1 ,  45   a   2  and  45   a   3  and  2   a ,  2   b  and  2   c  stand frames  45   b   1 ,  45   b   2  and  45   b   3 . 
     The frame bar  43  may be positioned between the  1   a ,  1   b  and  1   c  stand frames  45   a   1 ,  45   a   2  and  45   a   3  and the  2   a ,  2   b  and  2   c  stand frames  45   b   1 ,  45   b   2  and  45   b   3 . For example, the second frame bar  43   b  may be coupled to the  1   a ,  1   b  and  1   c  stand frames  45   a   1 ,  45   a   2  and  45   a   3  and the  2   a ,  2   b  and  2   c  stand frames  45   b   1 ,  45   b   2  and  45   b   3 . 
     The second frame bar  43   b  may provide rigidity for the  1   a ,  1   b  and  1   c  stand frames  45   a   1 ,  45   a   2  and  45   a   3  and the  2   a ,  2   b  and  2   c  stand frames  45   b   1 ,  45   b   2  and  45   b   3  and form a frame coupling space (where the frame  30  will be disposed and coupled) between the  1   a ,  1   b  and  1   c  stand frames  45   a   1 ,  45   a   2  and  45   a   3  and the  2   a ,  2   b  and  2   c  stand frames  45   b   1 ,  45   b   2  and  45   b   3 . For example, when the second frame bar  43   b  has a first thickness T 1 , and a distance between the  1   a ,  1   b  and  1   c  stand frames  45   a   1 ,  45   a   2  and  45   a   3  and the  2   a ,  2   b  and  2   c  stand frames  45   b   1 ,  45   b   2  and  45   b   3  is a second thickness T 2 , the first thickness T 1  may be the same as the second thickness T 2 . The first and second thicknesses T 1  and T 2  may be equal to or greater than a thickness (i.e., a third thickness) T 3  of the frame  30 . Thus, the frame  30  may be fixed in a form to be placed on the second frame bar  43   b.    
     As shown in  FIGS. 10 to 12 , the stand assembly  40  of the display device  1  according to the embodiment of the invention may be fixed in a suitable form using the ball casters  49  and a fixer  42 . 
     As shown in  FIG. 10 , the ball casters  49  may be coupled to bottom surfaces of the first to fourth stand assemblies  40   a  to  40   d  of the display device  1  according to the embodiment of the invention. The first to fourth stand assemblies  40   a  to  40   d  may adjust their position using the ball casters  49 . 
     As shown in  FIG. 11 , an operator may dispose the first and second stand assemblies  40   a  and  40   b  adjacent to each other and then dispose the fixer  42 . 
     The first and second stand assemblies  40   a  and  40   b  may include first to fourth stand coupling holes Ha 1 , Ha 2 , Hb 1 , and Hb 2 . The fixer  42  may include first to fourth fixer coupling holes Hc 1 , Hc 2 , Hd 1 , and Hd 2 . A first diameter D 1  of each of the first to fourth stand coupling holes Ha 1 , Ha 2 , Hb 1 , and Hb 2  may be less than a second diameter D 2  of each of the first to fourth fixer coupling holes Hc 1 , Hc 2 , Hd 1 , and Hd 2 . 
     As shown in  FIG. 12A , the first and second stand assemblies  40   a  and  40   b  may not be initially positioned in place. This may be perceived intuitively by the first to fourth stand coupling holes Ha 1 , Ha 2 , Hb 1 , and Hb 2  observed through the first to fourth fixer coupling holes Hc 1 , Hc 2 , Hd 1 , and Hd 2 . For example, because the second stand assembly  40   b  is not positioned in place, the fourth stand coupling hole Hb 2  observed through the fourth fixer coupling hole Hd 2  may be out of position, and the third stand coupling hole Hb 1  may not be observed through the third fixer coupling hole Hd 1 . 
     As shown in  FIG. 12B , the operator may adjust the position of the first and second stand assemblies  40   a  and  40   b . The position adjustment may be easily performed using ball casters  49   a  and  49   b  on the bottom surfaces of the first and second stand assemblies  40   a  and  40   b.    
     The fact that the first and second stand assemblies  40   a  and  40   b  are positioned in place may be easily determined based on whether or not the first to fourth stand coupling holes Ha 1 , Ha 2 , Hb 1 , and Hb 2  are respectively positioned in the center of the first to fourth fixer coupling holes Hc 1 , Hc 2 , Hd 1 , and Hd 2 . Namely, the operator may easily dispose the first and second stand assemblies  40   a  and  40   b  in place using the ball casters  49   a  and  49   b  and the fixer  42  without using a separate tool, etc. 
     As shown in  FIG. 13 , a stand cover supporter  41   c  may be coupled to the base  141 . 
     The stand cover supporter  41   c  may fix the two adjacent stand assemblies  40 . For example, the stand cover supporter  41   c  may be coupled to the base  141  so that the first and second stand assemblies  40   a  and  40   b  are connected to each other. For example, a screw  41   d  may pass through the stand cover supporter  41   c  and a coupling hole  41   e  and may couple the stand cover supporter  41   c  to the base  141 . 
     The plurality of stand cover supporters  41   c  may be used to connect the two adjacent stand assemblies  40 . For example, the two stand cover supporters  41   c  may be positioned between the first and second stand assemblies  40   a  and  40   b  and coupled to them. 
     As shown in  FIGS. 14 and 15 , the components of the display device  1  may be coupled to the stand assembly  40 . The component of the display device  1  may include an electronic unit supplying electrical signals and/or electric power. The panel assemblies  10  and  20  (see  FIG. 26 ) displaying an image of the display device  1  may be configured to be relatively thin. The panel assemblies  10  and  20  (see  FIG. 26 ) may be formed in a thin and beautiful shape by applying an organic light emitting diode (OLED) display panel by way of example. Thus, the components necessary for an operation of the panel assemblies  10  and  20  (see  FIG. 26 ) may be disposed at the stand assembly  40 . 
     The component of the display device  1  may be coupled to the stand assembly  40  at different positions. For example, a portion of the component may be coupled to the stand frame  45 , and another portion of the component may be disposed on the base frame  47  in accordance with characteristics of the component. 
     The components of the display device  1  may be disposed in both side areas of the stand frame  45 . The display device  1  may include the first and second panel assemblies  10  and  20 . Namely, the display device  1  may include the first panel assembly  10  facing one side and the second panel assembly  20  facing the other side. Thus, a component corresponding to the first panel assembly  10  may be disposed in one side area, and a component corresponding to the second panel assembly  20  may be disposed in the other side area. Namely, components  51   a ,  53   a , and  55   a  corresponding to the first panel assembly  10  may be disposed in one side area, and components  51   b ,  53   b , and  55   b  corresponding to the second panel assembly  20  may be disposed in the other side area. 
     The components of the display device  1  may include power units  51   a  and  51   b , T-con units  53   a  and  53   b , and printed circuit board (PCB) units  55   a  and  55   b . The components may be attached to the stand frame  45  or attached to the base frame  47 . Such an arrangement of the components may be to minimize a width, a length, and/or a volume of the stand assembly  40 . For example, the T-con units  53   a  and  53   b  and/or the PCB units  55   a  and  55   b  having a relatively large area may be attached to the stand frame  45 . When the component having a relatively large area is longitudinally disposed on the stand frame  45 , a width of the Z-X plane of the base frame  47  can be prevented from being increased. Such an arrangement of the components may be to minimize a noise that may occur between the panel assemblies  10  and  20  and the components exchanging signals with the panel assemblies  10  and  20 . For example, the T-con units  53   a  and  53   b  and/or the PCB units  55   a  and  55   b  may transmit an image signal to the panel assemblies  10  and  20 . When a transmission path of the image signal becomes longer, a likelihood of occurrence of the noise may increase. Thus, the T-con units  53   a  and  53   b  and/or the PCB units  55   a  and  55   b  may be disposed on the stand frame  45  near to the panel assemblies  10  and  20 . Such an arrangement may be to minimize interference between operations of the components. For example, the power units  51   a  and  51   b  generating heat may be attached to the base frame  47 . By disposing the power units  51   a  and  51   b  at a distance from other components, the power units  51   a  and  51   b  can smoothly dissipate heat. Further, an influence of the heat dissipation on other components can be reduced. 
       FIGS. 16 to 25  illustrate configuration of a center frame assembly according to the embodiment of the invention. 
     As shown in  FIGS. 16 to 25 , the display device  1  according to the embodiment of the invention may include a center frame assembly  30 . The center frame assembly  30  may be a component, to which the panel assemblies  10  and  20  (see  FIG. 26 ) of the display device  1  are coupled. The center frame assembly  30  may guide the panel assemblies  10  and  20  to maintain a curved shape. 
     As shown in  FIG. 16 , the center frame assembly  30  may include first to fourth center frames  31  to  34 . The first to fourth center frames  31  to  34  may be formed in a curved shape. For example, the first and second center frames  31  and  32  may be formed in a concave curved shape, and the third and fourth center frames  33  and  34  may be formed in a convex curved shape. 
     The first to fourth center frames  31  to  34  may be coupled to the first to fourth stand assemblies  40   a  to  40   d . For example, the first to fourth center frames  31  to  34  may be coupled to upper sides of the stand frames  45  of the first to fourth stand assemblies  40   a  to  40   d.    
     A center frame bracket  70  may be coupled to a long side of the center frame assembly  30 . For example, a first center frame bracket  71  may be positioned between the first and second center frames  31  and  32 ; a second center frame bracket  73  may be positioned between the second and third center frames  32  and  33 ; and a third center frame bracket  75  may be positioned between the third and fourth center frames  33  and  34 . Each center frame bracket  70  may fix the adjacent center frames  30 . 
     As shown in  FIG. 17 , after the center frame  30  is temporarily fixed to the stand frame  45 , the center frame  30  may be firmly fixed to the stand frame  45  using a coupling means such as a bolt  66 . 
     As shown in  FIG. 18 , first, second, and third through holes  46   a ,  46   b , and  30   a  communicating with one another may be formed in the  1   a  and  2   a  stand frames  45   a   1  and  45   b   1  and the center frame  30 . The bolt  66  may pass through the first, second, and third through holes  46   a ,  46   b , and  30   a  and may be coupled to a nut  67 . 
     As shown in  FIGS. 19A, 19B and 20 , the center frame  30  may have a shape corresponding to the shape of the panel assemblies  10  and  20  that will be coupled to the center frame  30 . 
     As shown in  FIGS. 19A and 19B , a first groove  36   a  and a second groove  36   b  may be respectively formed on a first surface  35   a  and a second surface  35   b  of the center frame  30 . The first and second grooves  36   a  and  36   b  may be formed by more depressing a portion of each of the first and second surfaces  35   a  and  35   b  than another portion. 
     The first and second grooves  36   a  and  36   b  may correspond to a back structure of the panel assemblies  10  and  20 . For example, the first and second grooves  36   a  and  36   b  may be an area of the panel assemblies  10  and  20  corresponding to a cable connected to the T-con units  53   a  and  53   b , the PCB units  55   a  and  55   b , and/or the power units  51   a  and  51   b.    
     As shown in  FIG. 20 , the first groove  36   a  may be formed on the first surface  35   a , and the second groove  36   b  may be formed on the second surface  35   b . The first groove  36   a  may be positioned corresponding to the second groove  36   b.    
     First and second protrusions  35   c  and  36   c  may be positioned on the first and second grooves  36   a  and  36   b . The first and second protrusions  35   c  and  36   c  may have a height corresponding to the first and second surfaces  35   a  and  35   b . Namely, the first and second protrusions  35   c  and  36   c  may have a shape protruding from bottom surfaces of the first and second grooves  36   a  and  36   b.    
     As shown in  FIGS. 21 and 22 , the center frame bracket  70  may connect the center frames  30 . The plurality of center frame brackets  70  may have similar shapes. Thus, in the following description, a description of the first center frame bracket  71  will be replaced with a description of other center frame brackets  70 . 
     As shown in  FIG. 21 , the first center frame bracket  71  may connect the first frame  31  and the second frame  32 . 
     The first center frame bracket  71  may include a refractive portion  71   a  and first and second connection portions  71   b  and  71   c  extended from both sides of the refractive portion  71   a.    
     The first and second connection portions  71   b  and  71   c  may not be parallel to each other. Namely, a second imaginary plane formed by the second connection portion  71   c  may be inclined to a first imaginary plane formed by the first connection portion  71   b  at a predetermined angle. Because the second connection portion  71   c  is inclined to the first connection portion  71   b , the first and second frames  31  and  32  coupled to the first and second connection portions  71   b  and  71   c  may form an inclination angle AD. The inclination angle AD may serve to make the first and second frames  31  and  32  naturally curved. The first and second connection portions  71   b  and  71   c  may be coupled to the first and second frames  31  and  32  by bolts coupled to the first and second connection portions  71   b  and  71   c  and through holes  31   a  and  32   a  of the first and second frames  31  and  32 . 
     As shown in  FIG. 22 , the center frame bracket  70  may be configured to simultaneously couple the frame  30  to the panel assemblies  10  and  20 . For example, a related configuration may be coupled to a plurality of depressions formed in at least a portion of the center frame bracket  70 . 
     The first frame  31  and the first front panel  11  may be coupled to a first depression  71   d  of the first center frame bracket  71 . Namely, an inner space of the first depression  71   d  may correspond to a sum of the first frame  31  and the first front panel  11 . Similarly, the second frame  32  and the third rear panel  25  may be coupled to a second depression  71   e  of the first center frame bracket  71 . The second front panel  13  and the fourth rear panel  27  may be coupled to third and fourth depressions  71   f  and  71   g  of the first center frame bracket  71 , respectively. 
     The depressions  71   d ,  71   e ,  71   f  and  71   g  may be inclined at a predetermined angle. Namely, the depressions  71   d ,  71   e ,  71   f  and  71   g  may form an inclination angle AS and serve to make the frame  30  and the panel assemblies  10  and  20  naturally curved. 
     As shown in  FIGS. 23 to 25 , the display device  1  according to the embodiment of the invention may include a middle frame  80 . 
     As shown in  FIG. 23 , the middle frame  80  may be coupled to the side and/or the top of the frame  30 . The middle frame  80  coupled to the frame  30  may serve to protect the sides of the panel assemblies  10  and  20  that will be coupled to the frame  30 . The middle frame  80  may include first and second side middle frames  81  and  82  coupled to the long side of the frame  30  and first to fourth top middle frames  83 ,  85 ,  87 , and  89  coupled to the short side of the frame  30 . For example, the first side middle frame  81  may be coupled to a long side of the first frame  31 , and the second side middle frame  82  may be coupled to a long side of the fourth frame  34 . The first to fourth top middle frames  83 ,  85 ,  87 , and  89  may be coupled to short sides of the first to fourth frames  31 ,  32 ,  33 , and  34 . 
     As shown in  FIG. 24A , the middle frame  80  may include a body  80   d  having a first coupling hole  80   a  and first and second extension portions  80   b  and  80   c  that are extended from the body  80   d  by a second distance H 2  in different directions. The second distance H 2  may be greater than a first distance H 1  corresponding to a thickness of the frame  30 . 
     The frame  30  may include a coupling groove  30   d . For example, a portion of the side of the frame  30  may include a stepped portion. For example, a recess having a length corresponding to the body  80   d  of the middle frame  80  may be formed at the side of the frame  30 . 
     As shown in  FIG. 24B , the middle frame  80  may be coupled to the frame  30 . A first coupling hole  80   a  of the middle frame  80  may correspond to a second coupling hole  30   c  of the frame  30 . A fastening member such as a bolt may be coupled to the first and second coupling holes  80   a  and  30   c  and may couple the middle frame  80  to the frame  30 . 
     As shown in  FIG. 24C , the second distance H 2  of the first and second extension portions  80   b  and  80   c  may be equal to or greater than a third distance H 3  including the panel assemblies  10  and  20  coupled to the frame  30 . The panel assemblies  10  and  20  can be protected by the first and second extension portions  80   b  and  80   c  extended by the second distance H 2 . For example, an impact applied to edges of the panel assemblies  10  and  20  can be absorbed in the first and second extension portions  80   b  and  80   c.    
     As shown in  FIG. 25A , the middle frame  80  may be coupled to the frame  30  in a state where first and second separation spaces SS 1  and SS 2  are formed. In other words, the middle frame  80  may be in a form that is not completely in contact with the frame  30 . The middle frame  80  may be naturally inclined to the frame  30  by the first and second separation spaces SS 1  and SS 2 . For example, an inclination angle AD between the frame  30  and the middle frame  80  may be formed. 
     As shown in  FIG. 25B , even when the panel assemblies  10  and  20  are coupled to the frame  30 , the first and second separation spaces SS 1  and SS 2  may be maintained. The panel assemblies  10  and  20  may maintain their inherent curvature R due to the first and second separation spaces  30   d  and  80   d  and may be coupled to the frame  30 . The first and second separation spaces  30   d  and  80   d  can prevent a load that may be generated when the panel assemblies  10  and  20  are coupled to the frame  30  in a state where the inherent curvature R is not maintained. 
       FIGS. 26 to 42  illustrate configuration of a panel assembly according to the embodiment of the invention. 
     As shown in  FIGS. 26 to 42 , the panel assemblies  10  and  20  according to the embodiment of the invention may be coupled to the frame  30 . The panel assemblies  10  and  20  coupled to the frame  30  may be configured so that a bezel area is minimized. The panel assemblies  10  and  20  coupled to the frame  30  may be configured so that the separation resulting from a concave shape or a convex shape is prevented. 
     As shown in  FIG. 26 , the first to fourth front panels  11 ,  13 ,  15 , and  17  and the first to fourth rear panels  21 ,  23 ,  25 , and  27  may be coupled to the front surface and the back surface of the frame  30 . 
     The first and second front panels  11  and  13  and the first and second rear panels  21  and  23  may have a concave shape, and the third and fourth front panels  15  and  17  and the third and fourth rear panels  25  and  27  may have a convex shape. 
     The first to fourth front panels  11 ,  13 ,  15 , and  17  may be coupled to the frame  30  in the order named. Namely, after the first front panel  11  is coupled to the frame  30 , the second front panel  13  may be coupled to the frame  30 . Further, the first to fourth rear panels  21 ,  23 ,  25 , and  27  may be coupled to the frame  30  in the order named in the same manner as the first to fourth front panels  11 ,  13 ,  15 , and  17 . 
     As shown in  FIG. 27 , each of the front panel  10  and the rear panel  20  may be configured such that one panel overlaps another panel to form an overlap area OA. For example, an overlap area OA may be formed between the first front panel  11  and the second front panel  13 . As described above, the front panel  10  and the rear panel  20  may be coupled to the frame  30  in a predetermined order. Thus, the front panel  10  may be configured such that the first front panel  11  is positioned under the second front panel  13 , the second front panel  13  is positioned under the third front panel  15 , and the third front panel  15  is positioned under the fourth front panel  17 . In other words, at least a portion of an Nth front or rear panel may be positioned on a front surface of at least a portion of an (N−1)th front or rear panel, where N is a positive integer equal to or greater than 2. 
     As shown in  FIGS. 28 and 29 , the first front panel  11  and the second front panel  13  may form an overlap area OA. The first front panel  11  and the second front panel  13  may have a black matrix area. 
     The black matrix area may be a non-display area at the outside of a display panel. The display panel may include a display area and a non-display area. The display area may be an area displaying an image, and the non-display area may be an area in which an image is not displayed. The display area may be an active area, and the non-display area may be an inactive area. The non-display area may be an area necessary for connection of display electrodes and/or touch electrodes. The non-display area may be formed along long sides and/or short sides of the display panel. Sizes of the non-display area along a specific long side and/or a specific short side may be different from each other. For example, a size of the non-display area corresponding to a specific side, on which a source PCB for driving the display panel is disposed, may be greater than a size of the non-display area corresponding to another side. 
     As shown in  FIG. 28 , at least a portion of a second long side LS 1   b  of the first front panel  11  may overlap at least a portion of a first long side LS 2   a  of the second front panel  13 . The second long side LS 1   b  of the first front panel  11  may have a  1   a  non-display area BM 1   a , and the first long side LS 2   a  of the second front panel  13  may have a  2   b  non-display area BM 2   b.    
     As shown in  FIG. 29 , in the first front panel  11 , a size of the  1   a  non-display area BM 1   a  may be greater than sizes of  2   a  to  4   a  non-display areas BM 1   b , BM 1   c , and BM 1   d . The  1   a  non-display area BM 1   a  of the first front panel  11  may overlap the  2   b  non-display area BM 2   b  of the second front panel  13 . Thus, a size of the non-display area displayed outside when the  1   a  non-display area BM 1   a  overlaps the  2   b  non-display area BM 2   b  may be smaller than a size of the non-display area displayed outside when the  1   a  non-display area BM 1   a  and the  2   b  non-display area BM 2   b  are disposed in parallel with each other. 
     The  2   b  non-display area BM 2   b  may overlap an inner boundary of the  1   a  non-display area BM 1   a . Namely, the first and second front panels  11  and  13  may overlap each other such that the  2   b  non-display area BM 2   b  is the same as or adjacent to a boundary between the  1   a  non-display area BM 1   a  and the display area of the first front panel  11 . 
     As shown in  FIG. 30 , when the first and second front panels  11  and  13  are overlapped and coupled with each other, only the non-display area of the second front panel  13  may be observed from the outside. For example, the  1   a  non-display area BM 1   a  of the first front panel  11  may be covered by the second front panel  13 , and the  2   b  non-display area BM 2   b  of the second front panel  13  may be exposed to the outside. In other words, a non-display area WBZ observed from the outside may be smaller than an overlap area OA when the panels actually overlap each other. 
     As shown in  FIG. 31 , the panel assemblies  10  and  20  may be positioned on the front surface and the back surface of the frame  30 . The adjacent panel assemblies  10  and  20  may partially overlap each other. 
     The panel assemblies  10  and  20  may be coupled to each other by adhesive layers  19  and  29 . The adhesive layers  19  and  29  may be an adhesive or an adhesive tape corresponding to the overlap area OA. However, the above-described coupling form of the panel assemblies  10  and  20  may be implemented even using the center frame bracket  70  (see  FIG. 22 ) having a depression. 
     As shown in  FIG. 32 , at least a portion of the frame  30  may overlap the panel assembly  10 . In other words, the sizes of the frame  30  and the panel assembly  10  may not be the same. For example, at least one of a width and/or a length of the frame  30  may be different form at least one of a width and/or a length of the panel assembly  10 . 
     The panel assembly  10  may include a plurality of long sides. A first long side of the plurality of long sides may be at a location corresponding to a first long side of the frame  30 . Namely, the first long side of the panel assembly  10  and the first long side of the frame  30  may form an overlap area OA. 
     A second long side opposite the first long side of the panel assembly  10  may not correspond to a second long side of the frame  30 . Namely, the second long side of the panel assembly  10  may more protrude than the second long side of the frame  30 . In other words, a non-overlap area UOA may be formed on the second long side of the panel assembly  10 . 
     The non-overlap area UOA may overlap not the first frame  31  but the frame  30 . For example, the non-overlap area UOA may overlap the second frame  32  next to the first frame  31 . However, it is expressed as the non-overlap area UOA in that the non-overlap area UOA does not overlap the first front panel  11 . 
     The formation of the non-overlap area UOA may indicate that the width of the panel assembly  10  is greater than the width of the frame  30 . Thus, the panel assembly  10  may more protrude than the frame  30  by a width difference (or by the non-overlap area UOA). 
     The frame  30  may have a size different from the panel assembly  10 . Namely, as described above, the width of the frame  30  may be different from the width of the panel assembly  10 . Further, the length of the frame  30  may be different from the length of the panel assembly  10 . For example, the length of the frame  30  may be greater than the length of the panel assembly  10 . Thus, a first short side of the panel assembly  10  may be at a location corresponding to a first short side of the frame  30 , but a second short side opposite the first short side of the panel assembly  10  may not correspond to a second short side of the frame  30 . Hence, the frame  30  may be divided into an overlap area CA and a non-overlap area UA. The non-overlap area UA may be an area where the frame  30  is coupled to the stand assembly  40 . 
     As shown in  FIG. 33 , a cable CB may be positioned on the back surface of the panel assembly  10 . Namely, the cable CB may be used to supply signals and/or electric power required to drive a source PCB P, a chip-on film (COF) C, etc. necessary for an operation of the panel assembly  10 . The cable CB may be a plurality of cables including first and second cables CB 1  and CB 2 . 
     The panel assembly  10  may have long sides disposed in the longitudinal direction. Namely, the panel assembly  10  may be disposed in the longitudinal direction. In other words, the long sides of the panel assembly  10  may be disposed in a direction perpendicular to an installation surface (i.e., the ground). The source PCB P, the COF C, or the like may be disposed on one of the long sides of the panel assembly  10 , and the cable CB may be extended from the one long side of the panel assembly  10 . 
     The cable CB may be folded at least once. Namely, because the long side of the panel assembly  10  connected to the cable CB is longitudinally disposed, the cable CB extended in a direction parallel to the installation surface may be folded at least once and extended toward the ground. In other words, the extending direction of the cable CB may be changed to a direction toward the stand assembly  40 . 
     The frame  30  may have a first groove  36   a  corresponding to the cable CB. Because the relatively protruding cable CB is accommodated in the first groove  36   a , the panel assembly  10  and the frame  30  may be in close contact with each other. 
     As shown in  FIG. 34A , an insulating layer IT may be disposed on the first and second cables CB 1  and CB 2 . The insulating layer IT may correspond to an area where the first and second cables CB 1  and CB 2  are bent. The insulating layer IT may be formed in a triangular and/or rectangular shape. The insulating layer IT may include first to third insulating layers IT 1  to IT 3 . The first to third insulating layers IT 1  to IT 3  may be spaced apart from one another. 
     The insulating layer IT may include an adhesive layer. For example, an adhesive tape or an adhesive may be applied to one surface and/or the other surface of the insulating layer IT. The bending areas of the first and second cables CB 1  and CB 2  may be attached to each other by the adhesive layer. 
     As shown in  FIG. 34B , each of the first and second cables CB 1  and CB 2  may be bent once. The bent first and second cables CB 1  and CB 2  may be adjacent to each other at the first to third insulating layers IT 1  to IT 3 . The first to third insulating layers IT 1  to IT 3  can prevent the electrical connection of the first and second cables CB 1  and CB 2  in the bending areas of the first and second cables CB 1  and CB 2 . The first to third insulating layers IT 1  to IT 3  may be attached to and in close contact with one another in the bending areas. 
       FIGS. 35 to 42  illustrate configuration related to the coupling of the panel assemblies  10  and  20 . As shown in  FIGS. 35 to 42 , the display device  1  according to the embodiment of the invention may include a configuration capable of solving the problem of coupling resulting from the concave and/or convex panel assemblies  10  and  20 . 
     As shown in  FIG. 35 , the first and second front panels  11  and  13  and the first and second rear panels  21  and  23  may be formed in a concave shape, and the third and fourth front panels  15  and  17  and the third and fourth rear panels  25  and  27  may be formed in a convex shape. 
     Concave portions of the panel assemblies  10  and  20  may maintain the concave shape by being supported by the frame  30  formed of a metal material including aluminum, etc. For example, even when an elastic force for flattening is generated, the concave portions of the panel assemblies  10  and  20  may be supported by the frame  30  to maintain the concave shape. 
     Convex portions of the panel assemblies  10  and  20  may be spaced apart from the frame  30  by an elastic force for flattening. In Particular, the last long sides of the fourth front panel  17  and the fourth rear panel  27  may be separated in a separation direction DD. The display device  1  according to the embodiment of the invention may include a configuration for preventing the panel assembly  10  and  20  from being spaced apart from the frame  30 . 
     As shown in  FIG. 36 , a deco  90  may be coupled to the panel assemblies  10  and  20 . The deco  90  may be coupled after a process for assembling the panel assemblies  10  and  20 . The deco  90  may include first and second side decos  91  and  92  coupled to both long sides of the panel assemblies  10  and  20  and first and second top decos  93  and  95  coupled to both short sides of the panel assemblies  10  and  20 . The decor  90  may serve as a bezel. 
     The deco  90  may provide a beautiful appearance of the display device  1 . Namely, the deco  90  may be exposed to the outside from the side of the display device  1 . 
     The deco  90  can prevent the panel assemblies  10  and  20  from being separated from the frame  30 . Namely, the deco  90  may have a structure capable of preventing the panel assemblies  10  and  20  from being separated from the frame  30 . 
     As shown in  FIG. 37A , one surface of the deco  90  may be opened. For example, first and second extension portions  94  and  96  may protrude to form a coupling area  51 . 
     As shown in  FIG. 37B , when the first and second extension portions  94  and  96  are coupled, the deco  90  may be in the form of surrounding the side of the display device  1 . In other words, at least one of the first and second extension portions  94  and  96  may form an overlap area BO together with at least a portion of the display surface of each of the front and rear panels  10  and  20 . The first and second extension portions  94  and  96  protruding toward the display surface may serve as the bezel. The decor  90  can protect the front and rear panels  10  and  20  and can provide the beautiful appearance of the display device  1 . The display surface may indicate a surface of the panel on which an image is displayed. Namely, the display surface may be a surface opposite the back surface of the panel. 
     The deco  90  may prevent the front and rear panels  10  and  20  from being separated from the frame  30  by the first and second extension portions  94  and  96 . 
     As shown in  FIGS. 38 and 39 , the display device  1  according to the embodiment of the invention may include a stand side assembly  48 . The stand side assembly  48  may serve as an interface for the components coupled to the stand assembly  40 . 
     As shown in  FIG. 38 , the stand side assembly  48  may be coupled to the stand assembly  40 . The stand side assembly  48  may be coupled to the side assembly  40  through a fastening member such as a screw. 
     The stand side assembly  48  may include a first stand side assembly  48   a  coupled to one side of the stand assembly  40  and a second stand side assembly  48   b  coupled to the other side of the stand assembly  40 . 
     As shown in  FIG. 39 , lines LI supplying signals and/or electric power necessary for the operation of the display device  1  may be connected to the stand side assembly  48 . The lines LI may be connected to the component, for example, the T-con unit  53   a . The lines LI may be connected to at least one of the first and second stand side assemblies  48   a  and  48   b.    
     As shown in  FIGS. 40 to 42 , the display device  1  according to the embodiment of the invention may include a fixture  130  for preventing the separation of the panel assemblies  10  and  20 . The fixture  130  may include an adhesive and/or a magnet. 
     As shown in  FIG. 40A , a first fixture  131  may be positioned on the frame  30 . For example, the first fixture  131  may be disposed along the inside of the long side of the fourth frame  34 . The first fixture  131  may be a magnet. The first fixture  131  may be the second side deco  92 . 
     As shown in  FIG. 40B , a second fixture  133  may be positioned on the display panels  10  and  20 . For example, the second fixture  133  may be disposed along the inside of the long side of the fourth front panel  17 . The second fixture  133  may have a location and/or a shape corresponding to the first fixture  131 . The second fixture  133  may be a magnet and/or a metal capable of forming an attractive force with respect to the first fixture  131 . 
     The second fixture  133  may be disposed at a location that does not interfere with other components on the inner surface of the fourth front panel  17 . For example, the source PCB P, the COF C, or the like may be disposed on the inner surface of the fourth front panel  17 . The second fixture  133  may be disposed not to overlap the source PCB P, the COF C, or the like. For example, the second fixture  133  may be disposed in a blank area BC between the COFs C. 
     As shown in  FIG. 41A , the middle frame  80  may have a coupling groove  80   e . The coupling groove  80   e  may be a recess formed in a portion of the middle frame  80 . The first fixture  131  may be inserted into the coupling groove  80   e.    
     As shown in  FIG. 41B , the second fixture  133  may be positioned on the inner surface of the front panel  10 . For example, the second fixture  133  may be positioned on the inner surface of the fourth front panel  17 . In other words, the second fixture  133  may be positioned on the fourth front panel  17  of the convex shape. 
     As shown in  FIG. 41C , a depth of the coupling groove  80   e  may correspond to heights of the first and second fixtures  131  and  133 . Thus, a sum (i.e., a fourth height H 4 ) of thicknesses of the panel assemblies  10  and  20  and the frame  30  may not increase or may be minimized irrespective of the formation of the first and second fixtures  131  and  133 . The fourth front panel  17  of the convex shape may be stably attached to the frame  30  due to magnets, that have an attractive force between them, and/or metal bodies (i.e., the first and second fixtures  131  and  133 ) corresponding to the magnets. Further, although not shown, the deco  90  (see  FIG. 37 ) may be coupled, in addition to the first and second fixtures  131  and  133 . 
     As shown in  FIG. 42A , a separation area  34   b  may be provided between the inner surface of the fourth front panel  17  and a coupling surface  80   f  of the middle frame  80 . The second fixture  133  may be positioned in at least a portion of the separation area  34   b . The fourth front panel  17  may naturally bend depending on its inherent curvature due to the separation area  34   b.    
     As shown in  FIG. 42B , the first fixture  131  may be formed on the frame  30 . For example, the first fixture  131  may be disposed on one side of the fourth frame  34 . The second fixture  133  may be disposed on the inner surface of the fourth front panel  17  corresponding to the first fixture  131 . The second fixture  133  may be a magnet and/or a metal body. Such a structure may be applied to a case in which a sufficient space is not secured in the middle frame  80  and/or the inner area of the front panel  10  corresponding to the middle frame  80 . 
       FIGS. 43 to 48  illustrate configuration of a cover assembly according to the embodiment of the invention. 
     As shown in  FIGS. 43 and 44 , a stand supporter  107  may be coupled. 
     Bottom fixers  105  may be positioned at locations corresponding to each other on both side surfaces of the frame  30 . For example, a first bottom fixer  105   a  may be positioned on one side surface of the frame  30  corresponding to the front panel  10 , and a second bottom fixer  105   b  may be coupled to the other side surface of the frame  30  corresponding to the rear panel  20 . 
     The stand supporter  107  may support a stand cover  110  (see  FIG. 45 ). Namely, the stand supporter  107  may be a component to be coupled to an upper side of the stand cover  110 . 
     The stand supporter  107  and the bottom fixer  105  may be coupled to the frame  30  by fastening means  102  and  104 . The fastening means  102  and  104  may include a bolt  102  and a nut  104 . 
     As shown in  FIGS. 45 to 48 , the display device  1  according to the embodiment of the invention may include the stand cover  110 , stand side covers  112  and  114 , and a bottom deco  100 . 
     As shown in  FIG. 45 , the stand cover  110  may have a structure for shielding the stand assembly  40 . Namely, the stand cover  110  may have a structure for forming an appearance of the stand assembly  40  in which various components are installed. 
     The bottom deco  100  may be positioned under the panel assemblies  10  and  20 . For example,  1   a  and  1   b  bottom decos  101   a  and  101   b  may be coupled to one side of the panel assemblies  10  and  20 , and  2   a  and  2   b  bottom decos  103   a  and  103   b  may be coupled to the other side of the panel assemblies  10  and  20 . 
     The stand cover  110  may include first and second stand covers  111  and  113  corresponding to one side surface of the panel assemblies  10  and  20  and third and fourth stand covers  115  and  117  corresponding to the other side surface. Each stand cover  110  may correspond to the plurality of panel assemblies  10  and  20 . For example, the first stand cover  111  may have a shape corresponding to the first and second panels  11  and  13 . 
     The first stand cover  111  and the third stand cover  115  may have the same shape, and the second stand cover  113  and the fourth stand cover  117  may have the same shape. Therefore, the first and third stand covers  111  and  115  and the second and fourth stand covers  113  and  117  may be shared, thereby reducing the production and assembly cost. 
     The stand side covers  112  and  114  may be coupled to both sides of the stand assembly  40 . The stand side covers  112  and  114  may form an appearance of the stand assembly  40  together with the stand cover  110 . 
     The bottom deco  100  may be coupled to correspond to a top surface  100   a  of the stand cover  110 . The structure related to the coupling of the bottom deco  100  is as described above. 
     The bottom deco  100  may achieve the beautiful appearance of the display device  1  in spite of an overlap structure of the panel assemblies  10  and  20 . For example, the long sides of the first to fourth panels  11 ,  13 ,  15  and  17  may partially overlap one another as described above. The bottom deco  100  can prevent a stepped portion resulting from an overlap structure of the first to fourth panels  11 ,  13 ,  15  and  17  from appearing in the display device  1  through a stepped structure of the bottom deco  100 . 
     As shown in  FIG. 46 , a lower end part of the frame  30  may be positioned adjacent to the stand frame  45 . For example, the first and second stand frames  45   a  and  45   b  may be positioned on both sides of the frame  30 . A lower part of the frame  30  may be supported by the frame bar  43 . Because the lower part of the frame  30  is extended downwardly, the frame  30  may be longer than the display panels  10  and  20 . 
     The first and fourth stand covers  111  and  117  may be positioned on both sides of the frame  30 . The first and fourth stand covers  111  and  117  may be coupled to first and second stand supporters  107   a  and  107   b.    
     The  1   a  and  2   b  bottom decos  101   a  and  103   b  may be positioned on the first and fourth stand covers  111  and  117 . The  1   a  and  2   b  bottom decos  101   a  and  103   b  may be positioned at boundaries between the first and fourth stand covers  111  and  117  and the panel assemblies  10  and  20 , thereby achieving the beautiful appearance of the display device  1 . 
     As shown in  FIG. 47 , the long side of the second front panel  13  may overlap the long side of the first front panel  11 . Namely, the second front panel  13  may more protrude to the front than the first front panel  11  by a first distance HD 1  (see  FIG. 48 ) corresponding to a thickness of the second front panel  13 . In the same manner as this, the long side of the third front panel  15  may more protrude to the front than the second front panel  13  by a distance corresponding to a thickness of the third front panel  15 . 
     A front surface  109  of the bottom deco  100  may be flat regardless of a step structure of the panel assemblies  10  and  20 . Namely, a distance protruded by the overlap of the panel assemblies  10  and  20  may be offset by the bottom deco  100 . 
     The stand cover  110  may be flat regardless of the overlap of the panel assemblies  10  and  20 . For example, the first stand cover  111  and the second stand cover  113  may be flat connected to each other regardless of a height difference resulting from the overlap of the second and third front panels  13  and  15 . The flat surface of the stand cover  110  may be obtained by offsetting the height difference of the panel assemblies  10  and  20  by the bottom deco  100 . 
     As shown in  FIG. 48 , the  1   a  bottom deco  101   a  may include a first area A 1  and a second area A 2 . The first area A 1  may correspond to the first front panel  11 , and the second area A 2  may correspond to the second front panel  13 . 
     A boundary between the first and second areas A 1  and A 2  may have a height difference of the first distance HD 1 . Namely, a back surface  108  of the  1   a  bottom deco  101   a  may include a stepped portion having the height difference of the first distance HD 1 . A thickness of the  1   a  bottom deco  101   a  in the first area A 1  may be expressed as T 1 , and a thickness of the  1   a  bottom deco  101   a  in the second area A 2  may be expressed as T 2 . The first distance HD 1  may be formed corresponding to a thickness of the second front panel  13 . 
     A boundary between third and fourth areas A 3  and A 4  of the  1   b  bottom deco  101   b  may have a height difference of a second distance HD 2 . The second distance HD 2  may correspond to a thickness of the fourth panel  17 . 
     The thickness of the bottom deco  100  may vary from the first thickness T 1  to a fourth thickness T 4 . Namely, the thickness of the bottom deco  100  may decrease in order to offset the thicknesses of the panels positioned on the back surface  108 . The  2   a  and  2   b  bottom decos  103   a  and  103   b  may be in a shape symmetrical to the  1   a  and  1   b  bottom decos  101   a  and  101   b.    
     The foregoing embodiments are merely examples and are not to be considered as limiting the present disclosure. The present teachings can be readily applied to other types of methods and apparatuses. The features, structures, methods, and other characteristics of the embodiments described herein may be combined in various ways to obtain additional and/or alternative embodiments. 
     Certain embodiments or other embodiments of the invention described above are not mutually exclusive or distinct from each other. Any or all elements of the embodiments of the invention described above may be combined or combined with each other in configuration or function. 
     Although embodiments have been described with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope of the principles of this disclosure. More particularly, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art.