Display device

Abstract

A display device is disclosed. The display device comprises: a display panel; a composite material plate positioned at a rear side of the display panel; and a side frame extending along the circumference of the display panel and fixing the display panel to the composite material plate, wherein the composite material plate includes: a front skin forming a front surface; a rear skin forming a rear surface and facing the front skin; and a core, which is positioned between the front skin and the rear skin and includes fibers, the side frame includes: a vertical part covering an edge of the display panel and / or an edge of the composite material plate; and a horizontal part positioned between the display panel and the composite material plate and connected to the vertical part, and, at a position corresponding to the horizontal part of the side frame, the rear skin can be folded and the front skin can be inserted into the folded rear skin.

Description

Display device

[0001] The present disclosure relates to a display device.

[0002] As the information society develops, the demand for display devices is increasing in various forms. In response to this, various display devices such as LCD (Liquid Crystal Display Device), PDP (Plasma Display Panel), ELD (Electroluminescent Display), VFD (Vacuum Fluorescent Display), and OLED (Organic Light Emitting Diode) have recently been researched and are being used.

[0003] Among these, display devices using Organic Light Emitting Diodes (OLEDs) have the advantage of superior brightness and viewing angle compared to liquid crystal display devices, and can be implemented as ultra-thin because they do not require a backlight unit.

[0004] Recently, much research is being conducted to ensure the rigidity and structural stability of large-screen ultra-thin display devices.

[0005] The present disclosure aims to solve the aforementioned problems and other problems.

[0006] Another objective may be to ensure the structural rigidity of large-screen ultra-thin display devices.

[0007] Another objective may be to ensure the structural stability of the display device.

[0008] Another purpose may be to improve the flatness of the frame of the display device.

[0009] Another purpose may be to improve the bonding structure of the display device.

[0010] Another purpose may be to increase the moldability of the skin forming the frame of the display device.

[0011] A display device according to one aspect of the present disclosure for achieving the above-described purpose comprises: a display panel; a composite material plate located at the rear of the display panel; and a side frame extending along the periphery of the display panel and fixing the display panel to the composite material plate, wherein the composite material plate comprises: a front skin forming a front surface; a rear skin forming a rear surface and facing the front skin; and a core located between the front skin and the rear skin and comprising fibers, wherein the side frame comprises: a vertical portion covering at least one of the edge of the display panel or the edge of the composite material plate; and a horizontal portion located between the display panel and the composite material plate and connected to the vertical portion, wherein at a position corresponding to the horizontal portion of the side frame, the rear skin is folded and the front skin can be inserted into the folded rear skin.

[0012] The effects of the display device according to the present disclosure are described as follows.

[0013] According to at least one of the embodiments of the present disclosure, structural rigidity of a large-screen ultra-thin display device can be secured.

[0014] According to at least one of the embodiments of the present disclosure, structural stability of the display device can be secured.

[0015] According to at least one of the embodiments of the present disclosure, the flatness of the frame of a display device can be improved.

[0016] According to at least one of the embodiments of the present disclosure, the coupling structure of a display device can be improved.

[0017] According to at least one of the embodiments of the present disclosure, the degree of molding of the skin forming the frame of the display device can be increased.

[0018] Further scopes of the applicability of the present disclosure will become apparent from the following detailed description. However, since various changes and modifications within the spirit and scope of the present disclosure are clearly understood by those skilled in the art, specific embodiments, such as the detailed description and preferred embodiments of the present disclosure, should be understood as being given merely as examples.

[0019] FIGS. 1 to 33 are drawings illustrating examples of display devices according to embodiments of the present disclosure.

[0020] The embodiments disclosed in this specification will be described in detail with reference to the attached drawings, provided that identical or similar components are given the same reference number regardless of the drawing symbols, and redundant descriptions thereof will be omitted.

[0021] The suffixes "module" and "part" used for components in the following description are assigned or used interchangeably solely for the ease of drafting the specification, and do not inherently possess distinct meanings or roles.

[0022] In describing the embodiments disclosed in this specification, if it is determined that a detailed description of related prior art may obscure the essence of the embodiments disclosed in this specification, such detailed description is omitted. Furthermore, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; it should be understood that they include all modifications, equivalents, and substitutions that fall within the concept and technical scope of this disclosure.

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

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

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

[0026] Even when describing an embodiment with reference to a specific drawing, reference numbers not appearing in the specific drawing may be mentioned if necessary, and reference numbers not appearing in the specific drawing are used when the reference numbers appear in other figures.

[0027]

[0028] Referring to FIG. 1, the display device (100) may include a display panel (110). The display panel (110) may display an image.

[0029] The display device (100) may include a first long side (LS1), a second long side (LS2) facing the first long side (LS1), a first short side (SS1) adjacent to the first long side (LS1) and the second long side (LS2), and a second short side (SS2) facing the first short side (SS1).

[0030] For the convenience of explanation, the lengths of the first and second long sides (LS1, LS2) are depicted and described as being longer than the lengths of the first and second short sides (SS1, SS2), but it is also possible for the lengths of the first and second long sides (LS1, LS2) to be approximately the same as the lengths of the first and second short sides (SS1, SS2).

[0031] A direction parallel to the long side (Long Side, LS1, LS2) of the display device (100) can be referred to as the first direction (DR1) or left-right direction (LR). A direction parallel to the short side (Short Side, SS1, SS2) of the display device (100) can be referred to as the second direction (DR2) or up-down direction (UD).

[0032] The direction perpendicular to the long side (LS1, LS2) and short side (SS1, SS2) of the display device (100) may be called the third direction (DR3) or the front-back direction (FR). Here, the direction in which the display panel (110) displays an image may be called the front, and the opposite direction may be called the rear.

[0033] Hereinafter, a display panel (110) is described using an organic light-emitting diode (OLED) as an example, but the display panel (110) applicable to the present disclosure is not limited thereto.

[0034] The display panel (110) forms the front surface of the display device (100) and can display an image forward. The display panel (110) can output an image by dividing the image into multiple pixels and adjusting the color, brightness, and saturation for each pixel. The display panel (110) can be divided into an active area where the image is displayed and a de-active area where the image is not displayed. The display panel (110) can generate light corresponding to the color red, green, or blue according to a control signal.

[0035]

[0036] Referring to FIG. 2, the material complexed panel (130) may include a core (131), a front skin (132), and a rear skin (133). The core (131), the front skin (132), and the rear skin (133) may be combined with each other. The material complexed panel (130) may be referred to as a fiber complexed panel (130), a fiber complexed plate (130), a material complexed plate (130), a middle frame (130), or a rear plate (130).

[0037] The front skin (132) can form the front surface of the composite material panel (130). The rear skin (133) can form the rear surface of the composite material panel (130). The front skin (132) and the rear skin (133) may include a metal material.

[0038] For example, the front skin (132) and the rear skin (133) may be galvanized iron. As another example, the front skin (132) and the rear skin (133) may include aluminum (Al).

[0039] For example, the thickness of the front skin (132) and the rear skin (133) may be 0.2 to 0.5 millimeters. As another example, the front skin (132) and the rear skin (133) formed from galvanized steel may be 0.27 millimeters. As another example, the front skin (132) and the rear skin (133) containing aluminum may be 0.5 millimeters.

[0040] The front skin (132) and the rear skin (133) may face each other with respect to the core (131) described later. The core (131) may be located between the front skin (132) and the rear skin (133). The core (131) may include fibers. The core (131) may be formed from a composite material. The core (131) may include main fibers and binder fibers. The binder fibers may be mixed between the main fibers.

[0041] Accordingly, the bending stiffness and / or torsional stiffness of the display device can be improved.

[0042]

[0043] Referring to FIG. 3, the core (131), the front skin (132), and the rear skin (133) can be combined through a process of stacking the front skin (132), the core (131), and the rear skin (133) in sequence and then combining them. For example, the front skin (132) and the core (131) may be combined by an adhesive layer, and the rear skin (133) and the core (131) may be combined. For example, a roller (Ra, Rb) may press the front skin (132) and the core (131) to strengthen the bond, and press the rear skin (133) and the core (131) to strengthen the bond.

[0044]

[0045] Referring to FIG. 4, the composite material panel (130) may have a flat section (130P), a receiving section (137), and an outer part (135). The outer part (135) may be formed around the perimeter of the flat section (130P). A first outer part (135a) may be formed along the upper edge of the flat section (130P), a second outer part (135b) may be formed along the left edge of the flat section (130P), a third outer part (135c) may be formed along the lower edge of the flat section (130P), and a fourth outer part (135d) may be formed along the right edge of the flat section (130P). The outer part (135) may be formed as the flat section (130P) is pressed. The outer part (135) may form a step as it descends from the flat section (130P). The thickness of the flat portion (130P) may be greater than the thickness of the outer part (135).

[0046] The cable hole (136) may be formed by penetrating the front skin (132, see FIG. 2) and the rear skin (133, see FIG. 2) of the receiving portion (137). The cable hole (136) may be formed in the flat portion (130P) and / or the receiving portion (137) adjacent to the lower edge of the flat portion (130P). There may be multiple cable holes (136). The first cable hole (136a) may be located adjacent to the second cable hole (136b).

[0047] A receiving portion (137) may be formed between the flat plate portion (130P) and the third outer part (135c) adjacent to the lower edge of the flat plate portion (130P). There may be multiple receiving portions (137). A first receiving portion (137a) may be located between the first cable hole (136a) and the second short side (SS2). A second receiving portion (137b) may be located between the second cable hole (136b) and the first short side (SS1). The receiving portion (137) may be formed by pressing the flat plate portion (130P) and / or the third outer part (135c). The receiving portion (137) may form a step as it is lowered from the flat plate portion (130P) and / or the third outer part (135c).

[0048]

[0049] Referring to FIG. 5, the receiving portion (137) can be formed by pressing the flat portion (130P). The front skin (132) of the receiving portion (137) can form a step (D1) that is lower from the front skin (132) of the flat portion (130P). The rear skin (133) of the receiving portion (137) can form a step (D2) that is higher from the rear skin (133) of the flat portion (130P). At this time, the height of the step (D1) that is lower from the front skin (132) of the flat portion (130P) to the front skin (132) of the receiving portion (137) can be greater than the height of the step (D2) that is higher from the rear skin (133) of the flat portion (130P) to the rear skin (133) of the receiving portion (137). The thickness (T1) of the flat plate portion (130P) may be greater than the thickness (T2) of the receiving portion (137).

[0050] As the front skin (132) of the flat plate (130P) is pressed in the direction of the rear skin (133), the core (131) of the composite material panel (130) can absorb external force. The magnitude of the external force applied to the front skin (132) of the flat plate (130P) may be greater than the magnitude of the external force applied to the rear skin (133) of the flat plate (130P). The core (131) of the composite material panel (130) can absorb shock as well as secure rigidity.

[0051] The thickness (T4) of the third outer part (135c) may be greater than the thickness (T2) of the receiving portion (137). A step (D2) may be formed that rises from the rear skin (133) of the third outer part (135c) to the rear skin (133) of the receiving portion (137). The height of the step (D2) between the rear skin (133) of the third outer part (135c) and the rear skin (133) of the receiving portion (137) may be the same as the height of the step (D2) between the rear skin (133) of the receiving portion (137) and the rear skin (133) of the flat portion (130P).

[0052] The protruding pad (138) may be formed by protruding from the front skin (132) of the third outer part (135c). The front skin (132) of the protruding pad (138) may form a step (D4) that lowers to the front skin (132) of the third outer part (135c). The height of the step (D4) formed by the third outer part (135c) and the protruding pad (138) may be smaller than the height of the steps (D1, D2) formed by the flat portion (130P) and the receiving portion (137). A step (D3) that lowers from the front skin (132) of the protruding pad (138) to the front skin (132) of the receiving portion (137) may be formed. The thickness (T3) of the protruding pad (138) may be greater than the thickness (T4) of the third outer part (135c), smaller than the thickness (T1) of the flat part (130P), and smaller than the thickness (T2) of the receiving part (137).

[0053] The fastening groove (H) may protrude from the rear skin (133) of the receiving portion (137). The fastening groove (H) may be recessed in the front skin (132) of the receiving portion (137) and may protrude from the rear skin (133) of the receiving portion (137). The center of the fastening groove (H) may be penetrated.

[0054]

[0055] Referring to FIGS. 6 and 7, a fastening groove (H) may be formed in a flat plate (130P). The fastening groove (H) may be formed as the flat plate (130P) is pressed. The front skin (132) of the fastening groove (H) may be formed by being recessed from the front skin (132) of the flat plate (130P). The rear skin (133) of the flat plate (130P) and the rear skin (133) of the fastening groove (H) may form the same plane. The thickness (T0) of the fastening groove (H) may be smaller than the thickness (T1) of the flat plate (130P).

[0056] A fastening member (h) may be formed in the center of the fastening groove (H). The fastening member (h) may be formed by punching the fastening groove (H). The fastening member (h) may be formed by penetrating the front skin (132) and the rear skin (133) of the fastening groove (H). The length of the shaft (SA) of the fastening member (S) may be greater than the thickness (T0) of the fastening groove (H). The shaft (SA) of the fastening member (S) may be inserted into the fastening groove (H) and protrude outside the rear skin (132) of the fastening groove (H) through the fastening member (h). The depth (D5) of the fastening groove (H) may be greater than the thickness of the head (SH). The head (SH) of the fastening member (S) may be concealed within the fastening groove (H).

[0057]

[0058] Referring to FIGS. 8 and 9, a PCB plate (150) may be formed on the rear of a composite material panel (130). The PCB plate (150) may be referred to as a PCB mount (150). For example, the PCB plate (150) may be formed by press-molding a rear skin (133).

[0059] The PCB plate (150) may be provided with a horizontal portion (152), a vertical portion (153), a dome portion (154), and a recessed portion (155). The horizontal portion (152) may be formed by protruding from the front to the rear of the PCB plate (150) and extending long in the left-right direction of the PCB plate (150). The vertical portion (153) may be formed by protruding from the front to the rear of the PCB plate (150) and extending long in the up-down direction of the PCB plate (150). The dome portion (154) may be formed by protruding from the front to the rear of the PCB plate (150). The recessed portion (155) may be formed by being recessed from the rear to the front of the vertical portion (153) and / or the horizontal portion (152).

[0060]

[0061] Referring to FIGS. 10 and 11, the side frame (140) may be joined to an outer part (135, see FIG. 4) adjacent to the flat plate portion (130P). The side frame (140) may have a first part (141), a second part (142), a third part (143), a fourth part (144), and a fifth part (145). The second part (142) may be bent from the first part (141) at a first corner (C1).

[0062] The first part (141) may have a horizontal section (141H) and a vertical section (141V). The horizontal section (141H) of the first part (141) may be fixed on the first outer part (135a, see FIG. 4). The second part (142) may have a horizontal section (142H) and a vertical section (142V). The horizontal section (142H) of the second part (142) may be fixed on the fourth outer part (135d, see FIG. 4).

[0063] A gap (G1) may be formed between the horizontal portion (141H) of the first part (141) and the horizontal portion (142H) of the second part (142). The vertical portion (141V) of the first part (141) and the vertical portion (142V) of the second part (142) may be connected by bending. A hole (H1) connected to the gap (G1) may be formed between the horizontal portions (141H, 142H) adjacent to the vertical portions (141V, 142V). The size of the hole (H1) or the diameter of the hole (H1) may be larger than the width of the gap (G1). The description of the first corner (C1) of the side frame (140) may be applied equally to the second corner (C2) of the side frame (140).

[0064]

[0065] Referring to FIGS. 10 and 12, the side frame (140) may be joined to an outer part (135, see FIG. 4) adjacent to the flat plate portion (130P). The side frame (140) may have a first part (141), a second part (142), a third part (143), a fourth part (144), and a fifth part (145). The second part (142) may be bent from the third part (143) at a third corner (C3).

[0066] The third part (143) may have a horizontal section (143H) and a vertical section (143V). The horizontal section (143H) of the third part (143) may be fixed on the third outer part (135c, see FIG. 4). The second part (142) may have a horizontal section (142H) and a vertical section (142V). The horizontal section (142H) of the second part (142) may be fixed on the fourth outer part (135d, see FIG. 4).

[0067] A gap (G3) may be formed between the horizontal portion (143H) of the third part (143) and the horizontal portion (142H) of the second part (142). The vertical portion (143V) of the third part (143) and the vertical portion (142V) of the second part (142) may be connected by bending. A hole (H3) may be formed by connecting the gap (G3) between the horizontal portions (143H, 142H) adjacent to the vertical portions (143V, 142V). The size of the hole (H3) or the diameter of the hole (H3) may be larger than the width of the gap (G3). The description of the first corner (C3) of the side frame (140) may be applied equally to the fourth corner (C4) of the side frame (140).

[0068]

[0069] Referring to FIGS. 10 and 13, the third part (143) and the fourth part (144) of the side frame (140) may be positioned or fixed on the third outer part (135c). The end of the third part (143) of the side frame (140) may be joined to the end of the fourth part (144) of the side frame (140).

[0070] The horizontal portion (144H) of the fourth part (144) may come into contact with the horizontal portion (143H) and the vertical portion (143V) of the third part (143). The vertical portion (144V) of the fourth part (144) may come into contact with the vertical portion (143V) of the third part (143). The vertical portion (143V) of the third part (143) may come into contact with the horizontal portion (144H) and the vertical portion (144V) of the fourth part (144). The end of the third part (143) may be fixed to the end of the fourth part (144). For example, the end of the third part (143) and the end of the fourth part (144) may be fixed by welding.

[0071]

[0072] Referring to FIG. 14, the display panel (110) can be coupled or fixed onto the side frame (140). The horizontal portion (143H) of the side frame (140) can support the rear of the display panel (110), and the vertical portion (143V) can cover the side of the display panel (110). For example, the vertical portion (143V) of the third part (143) of the side frame (140) can cover the side of the lower edge of the display panel (110).

[0073] The vertical portion (143V) can cover the side of the composite material panel (130). For example, the vertical portion (143V) of the third part (143) of the side frame (140) can cover the side of the third outer part (135c) of the composite material panel (130).

[0074] The flexible cable (113) may extend from the lower edge of the display panel (110) to the horizontal portion (143H) of the display panel (110) and the side frame (140). The flexible cable (113) may extend between the rear surface of the display panel (110) and the composite material panel (130). For example, the flexible cable (113) may be a COF (113).

[0075] The source signal board (115) can be electrically connected to the flexible cable (113). The source signal board (115) can be fixed to one side of the flexible cable (113). For example, the source signal board (115) can be an S-PCB (115). The source signal board (115) can be located in the receiving portion (137) of the composite material panel (130).

[0076] The flexible cable (113) may be positioned between the protruding pad (138) of the composite material panel (130) and the display panel (110). The flexible cable (113) may come into contact with the protruding pad (138). Heat generated from the source signal substrate (115) and / or the flexible cable (113) may be dissipated through the protruding pad (138).

[0077] A heat dissipation pad (114) may be positioned between the flexible cable (113) in contact with the protruding pad (138) and the rear surface of the display panel (110). The heat dissipation pad (114) may be provided with an elastic material (114a) and a conductive film (114b). The core (114a) of the heat dissipation pad (114) may be formed of an elastic material, and the conductive film (114b) may cover the core (114a) of the heat dissipation pad (114). Accordingly, the flexible cable (113) may remain in contact with the protruding pad (138).

[0078]

[0079] Referring to FIGS. 15 and 16, an inner frame (210, 230) may be formed on the front and / or rear of a composite material panel (130). The inner frame (210, 230) may be referred to as a pressed frame (210, 230) or a rigid line (210, 230). The inner frame (210, 230) may be formed by the front skin (132) and / or rear skin (133) of the composite material panel (130) being pressed and the core (131, see FIG. 2) being compressed.

[0080] The inner frame (210, 230) may include a front inner line (210), a rear inner line (230), and a node hole (220). The front inner line (210) may be formed by indenting the front skin (132) of the composite material panel (130). The rear inner line (230) may be formed by indenting the rear skin (133) of the composite material panel (130).

[0081] The front inner line (210) may include a first front horizontal line (211), a second front horizontal line (212), a third front horizontal line (213), a first front vertical line (214), and a second front vertical line (215). The first front horizontal line (214) may form the upper side of the front inner line (210). The third front horizontal line (213) may form the lower side of the front inner line (210). The second front horizontal line (212) may be located between the first front horizontal line (211) and the third front horizontal line (213). The first front vertical line (214) may connect one end of the first front horizontal line (211), one end of the second front horizontal line (212), and one end of the third front horizontal line (213). The second front vertical line (215) can connect the other end of the first front horizontal line (211), the other end of the second front horizontal line (212), and the other end of the third front horizontal line (213). For example, the first distance (L1) between the first front horizontal line (211) and the second front horizontal line (212) may be smaller than the second distance (L2) between the second front horizontal line (212) and the third front horizontal line (213).

[0082] A node hole (220) can be formed at the point where the front horizontal lines (211, 212, 213) and the front vertical lines (214, 215) meet. The node hole (220) can be formed by penetrating the front skin (132), the core (131), and the rear skin (133) of the composite material panel (130).

[0083] The rear inner line (230) may include a first rear horizontal line (231), a second rear horizontal line (232), a third rear horizontal line (233), a first rear vertical line (234), and a second rear vertical line (235, see FIG. 23). The first rear horizontal line (234) may form the upper side of the rear inner line (230). The third rear horizontal line (233) may form the lower side of the rear inner line (230). The second rear horizontal line (232) may be located between the first rear horizontal line (231) and the third rear horizontal line (233). The first rear vertical line (234) may connect one end of the first rear horizontal line (231), one end of the second rear horizontal line (232), and one end of the third rear horizontal line (233). The second rear vertical line (235, see FIG. 23) can connect the other end of the first rear horizontal line (231), the other end of the second rear horizontal line (232), and the other end of the third rear horizontal line (233). For example, the third distance (L3) between the first rear horizontal line (231) and the second rear horizontal line (232) may be smaller than the fourth distance (L4) between the second rear horizontal line (232) and the third rear horizontal line (233).

[0084] A node hole (220) can be formed at the point where the rear horizontal lines (231, 232, 233) and the rear vertical lines (234, 235) meet. The node hole (220) can be formed by penetrating the front skin (132), the core (131), and the rear skin (133) of the composite material panel (130).

[0085] The PCB plate (150) is formed separately from the composite material panel (130) and can be coupled or fixed to the rear of the composite material panel (130) or the back surface of the composite material panel (130).

[0086] The length of the rear inner line (230) may be smaller than the length of the PCB plate (150). The width of the rear inner line (230) may be smaller than the width of the PCB plate (150). The PCB plate (150) may cover the rear inner line (230).

[0087] Accordingly, the bending stiffness and / or torsional stiffness of the composite material panel (130) can be improved.

[0088]

[0089] Referring to FIG. 17, there may be a plurality of node holes (220). The plurality of node holes (220) may include a first node hole (221), a second node hole (222), a third node hole (223), a fourth node hole (224), a fifth node hole (225), and a sixth node hole (226).

[0090] The first node hole (221) may be located at the corner (C2) formed by the first horizontal line (211, 231) and the first vertical line (214, 234). The first node hole (221) may be formed by penetrating the composite material panel (130) at the corner (C2) of the first horizontal line (211, 231) and the first vertical line (214, 234).

[0091] The second node hole (222) may be located at the corner (C1) formed by the first horizontal line (211, 231) and the second vertical line (215, 235). The second node hole (222) may be formed by penetrating the composite material panel (130) at the corner (C1) of the first horizontal line (211, 231) and the second vertical line (215, 235).

[0092] The third node hole (223) may be located at the node (M2) formed by the second horizontal line (212, 232) and the first vertical line (214, 234). The third node hole (223) may be formed by penetrating the composite material panel (130) at the node (M2) of the second horizontal line (212, 232) and the first vertical line (214, 234).

[0093] The fourth node hole (224) may be located at the node (M1) formed by the second horizontal line (212, 232) and the second vertical line (215, 235). The fourth node hole (224) may be formed by penetrating the composite material panel (130) at the node (M1) of the second horizontal line (212, 232) and the second vertical line (215, 235).

[0094] The fifth node hole (225) may be located at the corner (C4) formed by the third horizontal line (213, 233) and the first vertical line (214, 234). The fifth node hole (225) may be formed by penetrating the composite material panel (130) at the corner (C4) of the third horizontal line (213, 233) and the first vertical line (214, 234).

[0095] The sixth node hole (226) may be located at the corner (C3) formed by the third horizontal line (213, 233) and the second vertical line (215, 235). The sixth node hole (226) may be formed by penetrating the composite material panel (130) at the corner (C3) of the third horizontal line (213, 233) and the second vertical line (215, 235).

[0096] Accordingly, the bending rigidity and / or torsional rigidity of the composite material panel (130) can be improved, as well as the flatness of the display panel (110) coupled to the composite material panel (130).

[0097]

[0098] Referring to FIG. 18, the size of the sixth node hole (226) may be larger than the width of the third horizontal line (213, 233) and / or the second vertical line (215, 235). For example, if the sixth node hole (226) is square, the width (A, B) of the sixth node hole (226) may be larger than the width (W) of the third horizontal line (213, 233) and / or the second vertical line (215, 235). For another example, if the sixth node hole (226) is circular, the diameter of the sixth node hole (226) may be larger than the width of the third horizontal line (213, 233) and / or the second vertical line (215, 235). The description of the sixth node hole (226) may apply to the first node hole (221), the second node hole (222), and / or the fifth node hole (225).

[0099]

[0100] Referring to FIG. 19, the size of the fourth node hole (224) may be larger than the width of the second horizontal line (212, 232) and / or the second vertical line (215, 235). For example, if the fourth node hole (224) is square, the width (A, B) of the fourth node hole (224) may be larger than the width of the second horizontal line (212, 232) and / or the second vertical line (215, 235). As another example, if the fourth node hole (224) is circular, the diameter of the fourth node hole (224) may be larger than the width of the second horizontal line (212, 232) and / or the second vertical line (215, 235). The description of the fourth node hole (224) may also apply to the third node hole (223).

[0101]

[0102] Referring to FIG. 20, the front inner line (210) can be formed on the composite material panel (130) by compressing the core (131) and indenting the front skin (132). The rear inner line (230) can be formed on the composite material panel (130) by compressing the core (131) and indenting the rear skin (133).

[0103] The front inner line (210) and the rear inner line (230) may be symmetrical with respect to the core (131). For example, the width (W) of the front inner line (210) may be substantially the same as the width (W) of the rear inner line (230). For another example, the depth (D10) of the front inner line (210) may be substantially the same as the depth (D11) of the rear inner line (230).

[0104] A pressed area (PA) in which the core (131) is compressed may be formed between the front inner line (210) and the rear inner line (230). The density of the core (131) in the pressed area (PA) may be greater than the density of the core (131) in the uncompressed area.

[0105] Accordingly, the bending stiffness and / or torsional stiffness of the composite material panel (130) can be improved.

[0106]

[0107] Referring to FIG. 21, an adhesive member (AD) may be placed on a flat portion (130P) of a composite material panel (130). The adhesive member (AD) may be adhered to a front skin (132) of the composite material panel (130). There may be multiple adhesive members (AD).

[0108] The first adhesive member (AD1) can be fixed to the first part (141) of the side frame (140). The first adhesive member (AD1) can be extended along the longitudinal direction of the first part (141) of the side frame (140). The second adhesive member (AD2) can be extended along the longitudinal direction of the second part (142) of the side frame (140) and fixed to the second part (142). The third adhesive member (AD3) can be extended along the second part (142) of the side frame (140), parallel to the second part (142), and fixed to the flat plate (130P) spaced apart from the first adhesive member (AD1).

[0109] The fifth adhesive member (AD5) is extended along the longitudinal direction of the fifth part (145) of the side frame (140) and can be fixed to the fifth part (145). The fourth adhesive member (AD4) is extended along the fifth part (145) of the side frame (140), parallel to the fifth part (145), and can be fixed to the flat plate portion (130P) spaced apart from the fifth adhesive member (AD5).

[0110] The sixth adhesive member (AD6) is extended along the longitudinal direction of the first part (141) of the side frame (140) and can be fixed to the flat plate portion (130P) spaced apart from the first adhesive member (AD1). The 14th distance (G14) from the first part (141) of the side frame (140) to the sixth adhesive member (AD6) may be smaller than the 15th distance (G15) from the sixth adhesive member (AD6) to the first front horizontal inner line (211).

[0111] The seventh adhesive member (AD7) extends along the longitudinal direction of the sixth adhesive member (AD6) and can be fixed to the flat plate portion (130P) between the first front vertical line (214) and the fourth adhesive member (AD4). The seventh adhesive member (AD7) can be located between the sixth adhesive member (AD6) and the ninth adhesive member (AD9). The 16th distance (G16) from the fourth adhesive member (AD4) to one end of the seventh adhesive member (AD7) may be smaller than the 17th distance (G17) from the first front vertical line (214) to the other end of the seventh adhesive member (AD7).

[0112] The ninth adhesive member (AD9) extends along the longitudinal direction of the sixth adhesive member (AD6) and can be fixed to the flat plate portion (130P) between the first front vertical line (214) and the fourth adhesive member (AD4). The ninth adhesive member (AD9) can be located between the seventh adhesive member (AD7) and the receiving portion (137). The 18th distance (G18) from the fourth adhesive member (AD4) to one end of the ninth adhesive member (AD9) may be smaller than the 19th distance (G19) from the first front vertical line (214) to the other end of the ninth adhesive member (AD9).

[0113] The eighth adhesive member (AD8) extends along the longitudinal direction of the sixth adhesive member (AD6) and can be fixed to the flat plate portion (130P) between the second front vertical line (215) and the third adhesive member (AD3). The eighth adhesive member (AD8) can be located between the sixth adhesive member (AD6) and the receiving portion (137). The 20th distance (G20) from the third adhesive member (AD3) to one end of the eighth adhesive member (AD8) may be smaller than the 21st distance (G21) from the second front vertical line (215) to the other end of the eighth adhesive member (AD8).

[0114] The 10th adhesive member (AD10) extends along the longitudinal direction of the 6th adhesive member (AD6) and can be fixed to the flat plate portion (130P) between the 2nd front vertical line (215) and the 3rd adhesive member (AD3). The 10th adhesive member (AD10) can be located between the 8th adhesive member (AD8) and the receiving portion (137). The 22nd distance (G22) from the 3rd adhesive member (AD3) to one end of the 10th adhesive member (AD10) may be smaller than the 23rd distance (G23) from the 2nd front vertical line (215) to the other end of the 10th adhesive member (AD10).

[0115] The 11th adhesive member (AD11) is extended along the longitudinal direction of the 2nd front horizontal line (212) and can be fixed to the flat plate (130P) between the 2nd front horizontal line (212) and the 3rd front horizontal line (213). The 12th adhesive member (AD12) is extended along the longitudinal direction of the 2nd front horizontal line (212) and can be located between the 1st front horizontal line (211) and the 2nd front horizontal line (212). The length of the 12th adhesive member (AD12) may be shorter than the length of the 11th adhesive member (AD11).

[0116] The 10th distance (G10) between the 1st front horizontal line (211) and the 12th adhesive member (AD12) may be smaller than the 11th distance (G11) between the 12th adhesive member (AD12) and the 2nd front horizontal line (212). For example, the 10th distance (G10) may be 40 millimeters or more. For example, the distance between one end of the 12th adhesive member (AD12) and the 1st vertical front line (214) may be 20 millimeters or more. As another example, the distance between the other end of the 12th adhesive member (AD12) and the 2nd vertical front line (215) may be 20 millimeters or more.

[0117] The 12th distance (G12) between the 2nd front horizontal line (212) and the 11th adhesive member (AD11) may be greater than the 13th distance (G13) between the 11th adhesive member (AD11) and the 3rd front horizontal line (213). For example, the 13th distance (G13) may be 40 millimeters or more.

[0118] The display panel (110) can be bonded to or fixed to the composite material panel (130) by means of an adhesive member (AD). Accordingly, the display panel (110) can be fixed flatly to the composite material panel (130).

[0119]

[0120] Referring to FIGS. 22 and 23, the composite material panel (130) may have a flat portion (130P), a receiving portion (137), and an outer part (135). The outer part (135) may be formed around the perimeter of the flat portion (130P) and may form the edge of the composite material panel (130). A first outer part (135a) may be formed along the upper edge of the flat portion (130P), a second outer part (135b) may be formed along the left edge of the flat portion (130P), a third outer part (135c) may be formed along the lower edge of the flat portion (130P), and a fourth outer part (135d) may be formed along the right edge of the flat portion (130P). The outer part (135) may be formed as the flat portion (130P) is pressed. The outer part (135) can form a step as it slopes downward from the flat portion (130P). The thickness of the flat portion (130P) may be greater than the thickness of the outer part (135). The lower edge of the flat portion (130P) may form a curved line.

[0121] A receiving portion (137) may be formed on a third outer part (135c) adjacent to the lower edge of a flat plate portion (130P). There may be multiple receiving portions (137). A first receiving portion (137a) may be located between a first cable hole (136a) and a second short side (SS2). A second receiving portion (137b) may be located between a second cable hole (136b) and a first short side (SS1). A first receiving portion (137a) may be connected to a second receiving portion (137b). A receiving portion (137) may be formed as the third outer part (135c) is pressed from the front to the rear. A receiving portion (137) may form a step that is lower from the front of the outer part (135c).

[0122] The cable hole (136) may be formed by penetrating the front skin (132, see FIG. 2) and the rear skin (133, see FIG. 2) of the receiving portion (137). The cable hole (136) may be formed in the receiving portion (137) and / or the third outer part (135c) adjacent to the lower edge of the flat portion (130P). There may be multiple cable holes (136). The first cable hole (136a) may be located adjacent to the second cable hole (136b).

[0123] An inner frame (210, 230) may be formed on the front and / or rear of a composite material panel (130). The inner frame (210, 230) may be referred to as a pressed frame (210, 230) or a rigid line (210, 230). The inner frame (210, 230) may be formed by the front skin (132) and / or rear skin (133) of the composite material panel (130) being pressed and the core (131, see FIG. 2) being compressed.

[0124] The inner frame (210, 230) may include a front inner line (210), a rear inner line (230), and a node hole (220). The front inner line (210) may be formed by indenting the front skin (132) of the composite material panel (130). The rear inner line (230) may be formed by indenting the rear skin (133) of the composite material panel (130).

[0125] The front inner line (210) may include a first front horizontal line (211), a second front horizontal line (212), a third front horizontal line (213), a first front vertical line (214), and a second front vertical line (215). The first front horizontal line (211) may form the upper side of the front inner line (210). The third front horizontal line (213) may form the lower side of the front inner line (210). The second front horizontal line (212) may be located between the first front horizontal line (211) and the third front horizontal line (213). The first front vertical line (214) may connect one end of the first front horizontal line (211), one end of the second front horizontal line (212), and one end of the third front horizontal line (213). The second front vertical line (215) can connect the other end of the first front horizontal line (211), the other end of the second front horizontal line (212), and the other end of the third front horizontal line (213). For example, the first distance (L1) between the first front horizontal line (211) and the second front horizontal line (212) may be smaller than the second distance (L2) between the second front horizontal line (212) and the third front horizontal line (213).

[0126] A node hole (220) can be formed at the point where the front horizontal lines (211, 212, 213) and the front vertical lines (214, 215) meet. The node hole (220) can be formed by penetrating the front skin (132), the core (131), and the rear skin (133) of the composite material panel (130).

[0127] The rear inner line (230) may include a first rear horizontal line (231), a second rear horizontal line (232), a third rear horizontal line (233), a first rear vertical line (234), and a second rear vertical line (235). The first rear horizontal line (231) may form the upper side of the rear inner line (230). The third rear horizontal line (233) may form the lower side of the rear inner line (230). The second rear horizontal line (232) may be located between the first rear horizontal line (231) and the third rear horizontal line (233). The first rear vertical line (234) may connect one end of the first rear horizontal line (231), one end of the second rear horizontal line (232), and one end of the third rear horizontal line (233). The second rear vertical line (235) can connect the other end of the first rear horizontal line (231), the other end of the second rear horizontal line (232), and the other end of the third rear horizontal line (233). For example, the third distance (L3) between the first rear horizontal line (231) and the second rear horizontal line (232) may be smaller than the fourth distance (L4) between the second rear horizontal line (232) and the third rear horizontal line (233).

[0128] A node hole (220) can be formed at the point where the rear horizontal lines (231, 232, 233) and the rear vertical lines (234, 235) meet. The node hole (220) can be formed by penetrating the front skin (132), the core (131), and the rear skin (133) of the composite material panel (130).

[0129] The receiving portion (137) can be formed as the third outer part (135c) is pressed from the front to the rear. The receiving portion (137) can form a step that rises from the rear of the third outer part (135c).

[0130] A cut-out portion (139) may be formed in at least a portion of a curved line formed along the lower edge of the flat portion (130P). There may be multiple cut-out portions (139). A first cut-out portion (139a) may be aligned with the first receiving portion (137a), and a second cut-out portion (139b) may be aligned with the second receiving portion (137b). A cut-out portion (139) may be formed on a line forming a step between the front of the flat portion (130P) and the third outer part (135c). A cut-out portion (139) may be formed on a line forming a step between the third outer part (135c) and the receiving portion (137).

[0131] Accordingly, the bending stiffness and / or torsional stiffness of the composite material panel (130) can be improved, as well as the flatness of the composite material panel (130).

[0132]

[0133] Referring to FIG. 24, the third outer part (135c) can be formed by pressing the flat plate portion (130P). The front skin (132) of the third outer part (135c) can form a step (D5) that is lowered from the front skin (132) of the flat plate portion (130P).

[0134] The receiving portion (137) can be formed as the third outer part (135c) is pressed. The front skin (132) of the receiving portion (137) can form a step (D6) that is lowered from the front skin (132) of the third outer part (135c).

[0135] The rear skin (133) of the receiving portion (137) may form a step (D2) that rises from the rear skin (133) of the third outer part (135c). For example, the height of the step (D6) that lowers from the front skin (132) of the third outer part (135c) to the front skin (132) of the receiving portion (137) may be smaller than the height of the step (D2) that rises from the rear skin (133) of the third outer part (135c) to the rear skin (133) of the receiving portion (137). The thickness (T1) of the flat portion (130P) may be greater than the thickness (T2) of the receiving portion (137). The thickness (T4) of the third outer part (135c) may be smaller than the thickness (T1) of the flat portion (130P). The thickness (T2) of the receiving portion (137) may be greater than the thickness (T4) of the third outer part (135c).

[0136] As the front skin (132) of the flat plate (130P) is pressed in the direction of the rear skin (133), the core (131) of the composite material panel (130) can absorb external force. The magnitude of the external force applied to the front skin (132) of the flat plate (130P) may be greater than the magnitude of the external force applied to the rear skin (133) of the flat plate (130P). The core (131) of the composite material panel (130) can absorb shock as well as secure rigidity.

[0137] The fastening groove (H) may protrude from the rear skin (133) of the receiving portion (137). The fastening groove (H) may be recessed in the front skin (132) of the receiving portion (137) and may protrude from the rear skin (133) of the receiving portion (137). The center of the fastening groove (H) may be penetrated.

[0138]

[0139] Referring to FIG. 25, the first incision (139a) may include a first slit (139a1) and a second slit (139a2). The first slit (139a1) and / or the second slit (139a2) may extend long in the longitudinal direction of the receiving portion (137). The first slit (139a1) may be formed at the boundary of the flat portion (130P), the boundary of the third outer part (135c), and / or the boundary of the first receiving portion (137a). The second slit (139a2) may be formed adjacent to the first slit (139a1) at the boundary of the flat portion (130P), the boundary of the third outer part (135c), and / or the boundary of the first receiving portion (137a).

[0140] The first slit (139a1) may include an upper edge (1391), a left edge (1392), a right edge (1394), and a lower edge (1393). The upper edge (1391) may be formed in a stepped area formed at the lower edge boundary of the flat plate portion (130P). The lower edge (1393) may be formed in the first receiving portion (137a) adjacent to the upper edge of the first receiving portion (137a). The left edge (1392) connects the left end of the upper edge (1391) and the left end of the lower edge (1393) and may be formed in the lower edge stepped area of ​​the flat plate portion (130P), the third outer part (135c), and / or the first receiving portion (137a). The right side (1394) may be formed in a stepped area formed at the boundary of the lower side (1393) of the flat plate portion (130P), the third outer part (135c), and / or the first receiving portion (137a). For example, the length of the left side (1392) may be greater than the length of the right side (1394), the upper side (1391) may form a straight line, and the lower side (1393) may include a straight line and a curve.

[0141] The second slit (139a2) may include an upper edge (1395), a left edge (1396), a right edge (1398), and a lower edge (1397). The upper edge (1395) may be formed at the lower edge boundary of the flat plate portion (130P). The lower edge (1397) may be formed in the first receiving portion (137a) adjacent to the upper edge of the first receiving portion (137a). The left edge (1396) connects the left end of the upper edge (1395) and the left end of the lower edge (1397) and may be formed in the lower edge step area of ​​the flat plate portion (130P), the third outer part (135c), and / or the first receiving portion (137a). The right side (1398) may be formed in a stepped area formed at the lower boundary of the flat plate portion (130P), the third outer part (135c), and / or the first receiving portion (137a). For example, the length of the left side (1396) may be substantially the same as the length of the right side (1398), the upper side (1395) may include straight lines and curves, and the lower side (1397) may include straight lines and curves. The upper side (1395) may be parallel to the lower side (1397).

[0142]

[0143] Referring to FIG. 26, the second incision (139b) may include a first slit (139b1) and a second slit (139b2). The first slit (139b1) and / or the second slit (139b2) may extend long in the longitudinal direction of the receiving portion (137). The first slit (139b1) may be formed at the boundary of the flat portion (130P), the boundary of the third outer part (135c), and / or the boundary of the second receiving portion (137b). The second slit (139b2) may be formed adjacent to the first slit (139b1) at the boundary of the flat portion (130P), the boundary of the third outer part (135c), and / or the boundary of the second receiving portion (137b).

[0144] The first slit (139b1) may include an upper edge (1391), a left edge (1392), a right edge (1394), and a lower edge (1393). The upper edge (1391) may be formed in a stepped area formed at the lower edge boundary of the flat plate portion (130P). The lower edge (1393) may be formed in the second receiving portion (137b) adjacent to the upper edge of the second receiving portion (137b). The left edge (1392) connects the left end of the upper edge (1391) and the left end of the lower edge (1393) and may be formed in the lower edge stepped area of ​​the flat plate portion (130P), the third outer part (135c), and / or the second receiving portion (137b). The right side (1394) may be formed in a stepped area formed at the boundary of the lower side (1393) of the flat plate portion (130P), the third outer part (135c), and / or the second receiving portion (137b). For example, the length of the left side (1392) may be smaller than the length of the right side (1394), the upper side (1391) may form a straight line, and the lower side (1393) may include a straight line and a curve.

[0145] The second slit (139b2) may include an upper edge (1395), a left edge (1396), a right edge (1398), and a lower edge (1397). The upper edge (1395) may be formed at the lower edge boundary of the flat plate portion (130P). The lower edge (1397) may be formed in the second receiving portion (137b) adjacent to the upper edge of the second receiving portion (137b). The left edge (1396) connects the left end of the upper edge (1395) and the left end of the lower edge (1397) and may be formed in the lower edge step area of ​​the flat plate portion (130P), the third outer part (135c), and / or the second receiving portion (137b). The right side (1398) may be formed in a stepped area formed at the lower boundary of the flat plate portion (130P), the third outer part (135c), and / or the second receiving portion (137b). For example, the length of the left side (1396) may be substantially the same as the length of the right side (1398), the upper side (1395) may include straight lines and curves, and the lower side (1397) may include straight lines and curves. The upper side (1395) may be parallel to the lower side (1397).

[0146]

[0147] Referring to FIG. 27, the third outer part (135c) can be formed by pressing the flat plate portion (130P). The front skin (132) of the third outer part (135c) can form a step (D5) that is lowered from the front skin (132) of the flat plate portion (130P).

[0148] The receiving portion (137) can be formed as the third outer part (135c) is pressed. The front skin (132) of the receiving portion (137) can form a step (D6) that is lowered from the front skin (132) of the third outer part (135c).

[0149] The rear skin (133) of the receiving portion (137) may form a step (D2) that rises from the rear skin (133) of the third outer part (135c). For example, the height of the step (D6) that lowers from the front skin (132) of the third outer part (135c) to the front skin (132) of the receiving portion (137) may be smaller than the height of the step (D2) that rises from the rear skin (133) of the third outer part (135c) to the rear skin (133) of the receiving portion (137). The thickness (T1) of the flat portion (130P) may be greater than the thickness (T2) of the receiving portion (137). The thickness (T4) of the third outer part (135c) may be smaller than the thickness (T1) of the flat portion (130P). The thickness (T2) of the receiving portion (137) may be greater than the thickness (T4) of the third outer part (135c).

[0150] The core (131) of the composite material panel (130) can absorb external force as it is pressed from the front skin (132) of the flat section (130P) toward the rear skin (133). The magnitude of the external force applied to the front skin (132) of the flat section (130P) may be greater than the magnitude of the external force applied to the rear skin (133) of the flat section (130P). The core (131) of the composite material panel (130) can absorb shock as well as secure rigidity.

[0151] The fastening groove (H) may protrude from the rear skin (133) of the receiving portion (137). The fastening groove (H) may be recessed in the front skin (132) of the receiving portion (137) and may protrude from the rear skin (133) of the receiving portion (137). The center of the fastening groove (H) may be penetrated.

[0152] The first slit (139a1, 139b1) may be formed by penetrating the front skin (132), core (131), and / or rear skin (133). The second slit (139a2, 139b2) may be formed by penetrating the front skin (132), core (131), and / or rear skin (133).

[0153]

[0154] Referring to FIGS. 28 and 29, the outer part (135) may be formed around the perimeter of the flat plate (130P). The outer part (135) may form a step that is lower from the flat plate (130P). The outer part (135) may be formed by the front skin (132) being indented as the core (131, see FIG. 2) is compressed. The outer part (135) may also be formed by the front skin (132) being indented and the rear skin (133) protruding as the core (131) is compressed.

[0155] The third outer part (135c) may be formed adjacent to the lower edge of the flat plate (130P). The third outer part (135c) may be formed at the bottom of the flat plate (130P), forming a step that is lower from the flat plate (130P).

[0156] The receiving portions (137, 137a, 137b) may be formed on the third outer part (135c). The receiving portions (137, 137a, 137b) may be formed by pressing the flat plate portion (130P). The receiving portions (137, 137a, 137b) may form a step that is lower from the flat plate portion (130P). For example, the receiving portions (137, 137a, 137b) may form the same plane as the third outer part (135c). As another example, the receiving portions (137, 137a, 137b) may be formed by pressing the third outer part (135c).

[0157] The barrier slit (SL1, SL2) may be located at the boundary between the flat portion (130P) and the receiving portion (137a, 137b). The barrier slit (SL1, SL2) may be referred to as a barrier (SL1, SL2). The barrier slit (SL1, SL2) may be referred to as an incision portion (SL1, SL2). The barrier slit (SL1, SL2) may be referred to as a barrier cut-out (SL1, SL2).

[0158] Barrier slits (SL1, SL2) may be formed on the inclined surface of a step that slopes downward from the flat plate portion (130P) to the receiving portions (137a, 137b). Barrier slits (SL1, SL2) may be formed by cutting out a part of the flat plate portion (130P) and a part of the receiving portions (137a, 137b). There may be multiple barrier slits (SL1, SL2). Multiple barrier slits (SL1, SL2) may include a first slit (SL1) and a second slit (SL2).

[0159] The first slit (SL1) may include a first part (P1), a second part (P2), a third part (P3), a fourth part (P4), a fifth part (P5), a sixth part (P6), a seventh part (P7), and an eighth part (P8). The first part (P1), the second part (P2), and the third part (P3) may form the lower edge of the first slit (SL1). The fourth part (P4), the fifth part (P5), and the sixth part (P6) may form the upper edge of the first slit (SL1). The upper edge of the first slit (SL1) may be parallel to the lower edge of the first slit (SL1). The seventh part (P7) may connect one end of the upper edge of the first slit (SL1) with one end of the lower edge, and the eighth part (P8) may connect the other end of the upper edge of the first slit (SL1) with the other end of the lower edge. Part 7 (P7) can be placed next to Part 8 (P8).

[0160] The first part (P1) may be parallel to the third part (P3). The third part (P3) may be spaced apart from the first part (P1). The second part (P2) may connect the first part (P1) and the third part (P3). The fourth part (P4) may be parallel to the sixth part (P6). The sixth part (P6) may be spaced apart from the fourth part (P4). The fifth part (P5) may connect the fourth part (P4) and the sixth part (P6).

[0161] The fourth part (P4), the fifth part (P5), and the sixth part (P6) can form one edge of the flat plate portion (130P). The first part (P1), the second part (P2), and the third part (P3) can form one edge of the receiving portion (137a, 137b). The seventh part (P7) and the eighth part (P8) can form one edge of the step connecting the receiving portion (137a, 137b) and the flat plate portion (130P).

[0162] The second distance (D2) from the lower edge of the receiving portion (137a, 137b) to the third part (P3) may be greater than the first distance (D1) from the lower edge of the receiving portion (137a, 137b) to the first part (P1).

[0163] The second slit (SL2) may include a first part (E1), a second part (E2), a third part (E3), a fourth part (E4), a fifth part (E5), a sixth part (E6), a seventh part (E7), and an eighth part (E8). The first part (E1), the second part (E2), and the third part (E3) may form the lower edge of the second slit (SL2). The fourth part (E4), the fifth part (E5), and the sixth part (E6) may form the upper edge of the second slit (SL2). The upper edge of the second slit (SL2) may be parallel to the lower edge of the second slit (SL2). The seventh part (E7) may connect one end of the upper edge of the second slit (SL2) with one end of the lower edge, and the eighth part (E8) may connect the other end of the upper edge of the second slit (SL2) with the other end of the lower edge. Part 7 (E7) can be placed next to Part 8 (E8).

[0164] The first part (E1) may be parallel to the third part (E3). The third part (E3) may be spaced apart from the first part (E1). The second part (E2) may connect the first part (E1) and the third part (E3). The fourth part (E4) may be parallel to the sixth part (E6). The sixth part (E6) may be spaced apart from the fourth part (E4). The fifth part (E5) may connect the fourth part (E4) and the sixth part (E6).

[0165] The fourth part (E4), the fifth part (E5), and the sixth part (E6) can form one edge of the flat plate portion (130P). The first part (E1), the second part (E2), and the third part (E3) can form one edge of the receiving portion (137a, 137b). The seventh part (E7) and the eighth part (E8) can form one edge of the step connecting the receiving portion (137a, 137b) and the flat plate portion (130P).

[0166] The second distance (D2) from the lower edge of the receiving portion (137a, 137b) to the third part (E3) may be greater than the first distance (D1) from the lower edge of the receiving portion (137a, 137b) to the first part (E1). The first slit (SL1) may be symmetrical to the second slit (SL2).

[0167] Accordingly, the defect in the display panel (110) being poorly bonded to the composite material panel (130) due to the curvature occurring in the skin (132, 133) while forming the receiving portion (137a, 137b) can be improved.

[0168]

[0169] Referring to FIG. 30, a plurality of barrier slits (SL1, SL2) may include a first slit (SL1), a second slit (SL2), and a third slit (SL3). The third slit (SL3) may be extended and spaced apart from the first slit (SL1) and the second slit (SL2). The third slit (SL3) may face the receiving portions (137a, 137b) with respect to the first slit (SL1) and the second slit (SL2).

[0170] The length (L1) of the third slit (SL3) may be smaller than the distance between the seventh part (P7) of the first slit (SL1) and the seventh part (E7) of the second slit (SL2). The width (w1) of the third slit (SL3) may be smaller than the widths (w2, w3) of the first slit (SL1) and / or the second slit (SL2).

[0171] The third distance (D3) from the sixth part (P6) of the first slit (SL1) to the third slit (SL3) may be smaller than the second distance (D2) from the lower edge of the receiving portion (137a, 137b) to the third part (P3) of the first slit (SL1).

[0172] Accordingly, the display panel (110) being poorly bonded to the composite material panel (130) due to the curvature of the composite material panel (130) can be improved.

[0173]

[0174] Referring to FIGS. 31 and 32, the rear skin (133) may include a flat part (133a) and a folding part (133b). The folding part (133b) of the rear skin (133) may be referred to as an outer folding part (133b). The flat part (133a) may form the rear surface of the composite material panel (130). The flat part (133a) may extend adjacently to the inner side of the vertical portion (140V) of the side frame (140). The folding part (133b) may be formed by extending from the flat part (133a) and folding. The folding part (133b) may overlap with the flat part (133a) in the thickness direction of the display panel (110). The folding part (133b) may face the horizontal portion (140H) of the side frame (140) and overlap with the horizontal portion (140H). The width (Wb) of the folding part (133b) may be smaller than the width (Ws) of the horizontal portion (140H) of the side frame (140). For example, the rear skin (133) may have a cross-section in the shape of a hairpin corner overall by the flat part (133a) and the folding part (133b).

[0175] The front skin (132) may include an inner flat part (132a), an outer flat part (132b), and a folding part (132d). The folding part (132d) of the front skin (132) may be referred to as the inner folding part (132d). The inner flat part (132a) may be located opposite the flat part (133a) of the rear skin (133) with respect to the core (131). The inner flat part (132a) may be parallel to the flat part (133a) of the rear skin (133). The core (131) may be located between the inner flat part (132a) and the flat part (133a) of the rear skin (133).

[0176] The outer flat part (132b) may face the flat part (133a) of the rear skin (133). The outer flat part (132b) may be supported by the flat part (133a) of the rear skin (133) or may come into contact with the flat part (133a) of the rear skin (133). The outer flat part (132b) may overlap with the horizontal portion (140V) of the side frame (140). The outer flat part (132b) may be located between the flat part (133a) of the rear skin (133) and the folding part (133b). A portion of the outer flat part (132b) may be located between the flat part (133a) of the rear skin (133) and the horizontal portion (140H) of the side frame (140). The outer flat part (132b) can form a low step from the inner flat part (132a).

[0177] The front skin (132) may include a connecting portion (132c). The connecting portion (132c) may connect the inner flat part (132a) and the outer flat part (132b). The connecting portion (132c) may form an obtuse angle with respect to the inner flat part (132b). The connecting portion (132c) may form an obtuse angle with respect to the outer flat part (132b). An air room (AG1) or air gap (AG1) may be formed between the connecting portion (132c) and the core (131).

[0178] The folding part (132d) of the front skin (132) may be extended by folding from the outer flat part (132b). The folding part (132d) of the front skin (132) may be located between the outer flat part (132b) and the folding part (133b) of the rear skin (133). The folding part (132d) of the front skin (132) may overlap with the folding part (133b) of the rear skin (133). For example, the overlap area (Wc) between the folding part (132d) of the front skin (132) and the folding part (133b) of the rear skin (133) may be 8 millimeters or more. The width (Wb) of the folding part (133b) of the rear skin (133) may be greater than the width (Wa) of the folding part (132d) of the front skin (132). The folding part (132d) of the front skin (132) may be supported by or in contact with the folding part (133b) of the rear skin (133). The folding part (132d) of the front skin (132) may form a gap with the outer flat part (132b) of the front skin (132). In another embodiment, the folding part (132d) of the front skin (132) may be omitted, and the outer flat part (132b) of the front skin (132) may be inserted and engaged between the flat part (133a) and the folding part (133b) of the rear skin (133).

[0179] An air room (AG2) or air gap (AG2) may be formed between the part where the folding part (133b) of the rear skin (133) is folded from the flat part (133a) and the part where the outer flat part (132b) and the folding part (132d) of the front skin (132) are folded.

[0180] The adhesive member (AD) may be positioned between the horizontal portion (140H) of the side frame (140) and the folding part (133b) of the rear skin (133). The adhesive member (AD) may secure the horizontal portion (140H) of the side frame (140) to the folding part (133b) of the rear skin (133). The adhesive member (AD) may be positioned between the horizontal portion (140H) of the side frame (140) and the display panel (110). The adhesive member (AD) may secure the display panel (110) to the horizontal portion (140H) of the side frame (140).

[0181] The outer part (135) forming a step lowered from the flat portion (130P) can be formed by the connecting portion (132c), outer flat part (132b), and / or folding part (132d) of the front skin (132).

[0182] Accordingly, the bonding strength of the front skin (132), core (131), and / or rear skin (133) of the composite material panel (130) can be strengthened and the heat dissipation efficiency can be improved. The front skin (132), core (131), and / or rear skin (133) of the composite material panel (130) can be bonded to each other without an adhesive sheet.

[0183]

[0184] Referring to FIG. 33, the rear skin (133) may include a flat part (133a) and a folding part (133b). The folding part (133b) of the rear skin (133) may be referred to as an outer folding part (133b). The flat part (133a) may form the rear surface of the composite material panel (130). The flat part (133a) may extend adjacently to the inner side of the vertical portion (140V) of the side frame (140). The folding part (133b) may be formed by extending from the flat part (133a) and folding. The folding part (133b) may overlap with the flat part (133a) in the thickness direction of the display panel (110). The folding part (133b) may face the horizontal portion (140H) of the side frame (140) and overlap with the horizontal portion (140H). The width (Wb) of the folding part (133b) may be smaller than the width (Ws) of the horizontal portion (140H) of the side frame (140). For example, the rear skin (133) may have a cross-section in the shape of a hairpin corner overall by the flat part (133a) and the folding part (133b).

[0185] The front skin (132) may include an inner flat part (132a), an outer flat part (132b), and a folding part (132d). The folding part (132d) of the front skin (132) may be referred to as the inner folding part (132d). The inner flat part (132a) may be located opposite the flat part (133a) of the rear skin (133) with respect to the core (131). The inner flat part (132a) may be parallel to the flat part (133a) of the rear skin (133). The core (131) may be located between the inner flat part (132a) and the flat part (133a) of the rear skin (133).

[0186] The outer flat part (132b) may face the flat part (133a) of the rear skin (133). The outer flat part (132b) may be supported by the flat part (133a) of the rear skin (133) or may come into contact with the flat part (133a) of the rear skin (133). The outer flat part (132b) may overlap with the horizontal portion (140V) of the side frame (140). The outer flat part (132b) may be located between the flat part (133a) of the rear skin (133) and the folding part (133b). A portion of the outer flat part (132b) may be located between the flat part (133a) of the rear skin (133) and the horizontal portion (140H) of the side frame (140). The outer flat part (132b) can form a low step from the inner flat part (132a).

[0187] The front skin (132) may include a connecting portion (132c). The connecting portion (132c) may connect the inner flat part (132a) and the outer flat part (132b). The connecting portion (132c) may form an obtuse angle with respect to the inner flat part (132b). The connecting portion (132c) may form an obtuse angle with respect to the outer flat part (132b). An air room (AG1) or air gap (AG1) may be formed between the connecting portion (132c) and the core (131).

[0188] The front skin (132) may include an opening (132h). The opening (132h) may be located between the inner flat part (132a) and the connecting part (132c). The opening (132h) may be formed by cutting the front skin (132). The front skin (132) may include a middle flat part (132e) and a folded part (132g). The middle flat part (132e) may be located between the inner flat part (132a) and the connecting part (132c). The folded part (132g) may be bent and extended from the middle flat part (132a) and may cover the side of the core (131). The core (131) may be exposed to the outside of the composite panel (130) through the opening (132h). The opening (132h) of the front skin (132) can be formed by cutting and bending the fold portion (132g) from the middle flat part (132e) and the inner flat part (132a). An air room (AG1) can be formed by the fold portion (132g), the middle flat part (132e), and / or the inclined portion (132c). The core (131) can be supported by the fold portion (132g).

[0189] The folding part (132d) of the front skin (132) may be extended by folding from the outer flat part (132b). The folding part (132d) of the front skin (132) may be located between the outer flat part (132b) and the folding part (133b) of the rear skin (133). The folding part (132d) of the front skin (132) may overlap with the folding part (133b) of the rear skin (133). For example, the overlap area (Wc) between the folding part (132d) of the front skin (132) and the folding part (133b) of the rear skin (133) may be 8 millimeters or more. The width (Wb) of the folding part (133b) of the rear skin (133) may be greater than the width (Wa) of the folding part (132d) of the front skin (132). The folding part (132d) of the front skin (132) may be supported by or in contact with the folding part (133b) of the rear skin (133). The folding part (132d) of the front skin (132) may form a gap with the outer flat part (132b) of the front skin (132).

[0190] An air room (AG2) or air gap (AG2) may be formed between the curved portion where the folding part (133b) of the rear skin (133) folds from the flat part (133a) and the curved portion where the outer flat part (132b) and the folding part (132d) of the front skin (132) fold.

[0191] The adhesive member (AD) may be positioned between the horizontal portion (140H) of the side frame (140) and the folding part (133b) of the rear skin (133). The adhesive member (AD) may secure the horizontal portion (140H) of the side frame (140) to the folding part (133b) of the rear skin (133). The adhesive member (AD) may be positioned between the horizontal portion (140H) of the side frame (140) and the display panel (110). The adhesive member (AD) may secure the display panel (110) to the horizontal portion (140H) of the side frame (140).

[0192] The outer part (135) forming a step lowered from the flat portion (130P) can be formed by the connecting portion (132c) of the front skin (132), the outer flat part (132b) and / or the folding portion (132d) of the front skin (132).

[0193] Accordingly, the bonding strength of the front skin (132), core (131), and / or rear skin (133) of the composite material panel (130) can be strengthened and the heat dissipation efficiency can be improved. The front skin (132), core (131), and / or rear skin (133) of the composite material panel (130) can be bonded to each other without an adhesive sheet.

[0194]

[0195] Referring to FIGS. 1 to 33, the display device comprises: a display panel; a composite material plate located at the rear of the display panel; and a side frame extending along the perimeter of the display panel and fixing the display panel to the composite material plate, wherein the composite material plate comprises: a front skin forming the front surface; a rear skin forming the rear surface and facing the front skin; and a core located between the front skin and the rear skin and comprising fibers, wherein the side frame comprises: a vertical portion covering at least one of the edge of the display panel or the edge of the composite material plate; and a horizontal portion located between the display panel and the composite material plate and connected to the vertical portion, wherein at a position corresponding to the horizontal portion of the side frame, the rear skin is folded and the front skin can be inserted into the folded rear skin.

[0196] The rear skin comprises: a flat part forming the rear surface of the composite material plate; and a folding part extending while folding from the flat part, and the front skin can be inserted between the folding part of the rear skin and the flat part of the rear skin.

[0197] The front skin comprises: an inner flat part facing the rear of the display panel; and an outer flat part forming a lower step from the inner flat part, and the outer flat part of the front skin can be inserted between the folding part of the rear skin and the flat part of the rear skin.

[0198] The above front skin further includes a folding part that is folded and extended from the outer flat part, and the folding part of the front skin may be located between the folding part of the rear skin and the outer flat part of the front skin.

[0199] In the thickness direction of the display panel, the first width at which the folding part of the front skin and the folding part of the rear skin overlap may be smaller than the second width at which the horizontal part of the side frame and the folding part of the rear skin overlap.

[0200] An air room may be formed between the portion where the flat part of the rear skin and the folding part of the rear skin are folded, and between the portion where the outer flat part of the front skin and the folding part of the front skin are folded.

[0201] The front skin further includes a connecting portion connecting the inner flat part and the outer flat part, wherein the connecting portion forms an acute angle with respect to the rear surface of the display panel, and an air room may be formed between the connecting portion of the front skin and the flat part of the rear skin.

[0202] The front skin may include: a middle flat part located between the inner flat part and the connecting part; and a folded part that covers the side of the core, in which a part of the inner flat part is cut and bent.

[0203] The above core may be exposed to the outside through an opening formed by cutting a part of the inner flat part.

[0204] The above side frame may include: a first adhesive member for fixing the rear surface of the display panel to the horizontal portion of the side frame; and a second adhesive member for fixing the horizontal portion of the side frame to the folded rear skin.

[0205]

[0206] Some or other embodiments of the present disclosure described above are not exclusive or distinct from one another. Some or other embodiments of the present disclosure described above may be used in combination or combined for their respective configurations or functions.

[0207] For example, this means that configuration A described in a specific embodiment and / or drawing and configuration B described in another embodiment and / or drawing can be combined. That is, even if the combination between configurations is not directly described, it means that combination is possible, except in cases where it is described that combination is impossible.

[0208] The foregoing detailed description should not be interpreted restrictively in all respects and should be considered exemplary. The scope of the invention shall be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the invention are included within the scope of the invention.

Claims

1. Display panel; A composite material plate located at the rear of the above-mentioned display panel; and, It includes a side frame that extends along the perimeter of the display panel and secures the display panel to the composite plate, The above composite plate is: Front skin forming the front; A rear skin forming a rear and facing the front skin; and, It includes a core located between the front skin and the rear skin, and containing fibers, The above side frame is: A vertical portion covering at least one of the edge of the display panel or the edge of the composite material plate; and, It includes a horizontal portion located between the display panel and the composite material plate and connected to the vertical portion, A display device in which the rear skin is folded at a position corresponding to the horizontal portion of the side frame, and the front skin is inserted into the folded rear skin.

2. In Paragraph 1, The above rear skin is: A flat part forming the rear surface of the above composite material plate; and, It includes a folding part that extends while folding from the flat part above, and The above front skin is, A display device inserted between the folding part of the rear skin and the flat part of the rear skin.

3. In Paragraph 2, The above front skin is: An inner flat part facing the rear of the above-mentioned display panel; and, It includes an outer flat part that forms a low step from the inner flat part, and The outer flat part of the above front skin is, A display device inserted between the folding part of the rear skin and the flat part of the rear skin.

4. In Paragraph 3, The above front skin is: It further includes a folding part that extends while folding from the above outer flat part, and The folding part of the front skin above is, A display device located between the folding part of the rear skin and the outer flat part of the front skin.

5. In Paragraph 4, In the thickness direction of the display panel, the first width where the folding part of the front skin and the folding part of the rear skin overlap is, A display device smaller than a second width where the horizontal portion of the side frame and the folding part of the rear skin overlap.

6. In Paragraph 5, The part where the flat part of the rear skin and the folding part of the rear skin are folded, and A display device in which an air room is formed between the outer flat part of the front skin and the folding part of the front skin.

7. In Paragraph 3, The above front skin is: It further includes a connecting part connecting the inner flat part and the outer flat part, The above connection portion forms an acute angle with respect to the rear surface of the display panel, and A display device in which an air room is formed between the connecting part of the front skin and the flat part of the rear skin.

8. In Paragraph 7, The above front skin is: A middle flat part located between the inner flat part and the connecting part; and, A display device comprising a portion of the inner flat part that is cut and bent, and a bent portion that covers the side of the core.

9. In Paragraph 8, The above core is, A display device exposed to the outside through an opening formed by cutting a portion of the inner flat part.

10. In Paragraph 1, The above side frame is: A first adhesive member for fixing the rear surface of the display panel to the horizontal portion of the side frame; and, A display device comprising a second adhesive member that secures a horizontal portion of the side frame to the folded rear skin.

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