Display device

Abstract

Disclosed is a display device. The display device of the present disclosure may comprise: a display panel; a frame located behind the display panel; a substrate positioned between the display panel and frame, and coupled to the latter; and a heat dissipation plate positioned between and coupled to the substrate and frame, wherein the substrate comprises a plurality of long first plates distanced from each other, and the heat dissipation plate may comprise bent parts which are positioned between adjacent first plates from among the plurality of first plates and protrude forward toward the display panel.

Description

display device

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

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

[0003] Among these, the LCD panel has a TFT substrate and a color substrate facing each other with a liquid crystal layer and a liquid crystal layer interposed between them, and can display an image using light provided from a backlight unit.

[0004] As the picture quality provided by recent display devices has advanced to high definition, research is also being actively conducted on the structure of the substrate on which the light source such as the LED is mounted, the support structure of the reflective sheet for the substrate, and the support structure that supports the diffuser plate.

[0005] The present disclosure aims to solve the above-mentioned and other problems.

[0006] Another purpose may be to provide a display device capable of improving the degradation of the light performance of a backlight unit.

[0007] Another purpose may be to provide a display device that can effectively dissipate heat generated from the substrate and light source.

[0008] Another purpose may be to provide a display device that can ensure ease of assembly of the substrate to a heat sink or frame.

[0009] Another purpose may be to provide a display device that can increase the rigidity of the heat sink or frame.

[0010] Another purpose may be to provide a display device capable of maintaining a constant gap between a diffuser and a light source.

[0011] Another purpose may be to provide a support that can be slidably attached to a heat sink or frame in the narrow gaps between the light sources.

[0012] Another purpose may be to provide a structure that improves the stability of the supporter coupled to the heat sink or frame.

[0013] According to one aspect of the present disclosure for achieving the above or other purposes, a display device may include: a display panel; a frame positioned at the rear of the display panel; a substrate positioned between the display panel and the frame and coupled to the frame; and a heat sink positioned between the substrate and the frame and coupled to the substrate and the frame; wherein the substrate may include a plurality of first plates that are elongated and spaced apart from each other, and the heat sink may include a curved portion that protrudes forward toward the display panel and is disposed between adjacent first plates among the plurality of first plates.

[0014] According to one aspect of the present disclosure for achieving the above or other purposes, according to one aspect of the present disclosure for achieving the above or other purposes, a display device may include: a display panel; a frame positioned at the rear of the display panel; and a substrate positioned between the display panel and the frame and coupled to the frame; wherein the substrate may include a plurality of first plates that are elongated and spaced apart from each other, and the frame may include a curved portion that protrudes forward toward the display panel and is positioned between neighboring first plates among the plurality of first plates.

[0015] The effects of the display device according to the present disclosure are described as follows.

[0016] According to at least one of the embodiments of the present disclosure, a display device capable of improving degradation of light performance of a backlight unit can be provided.

[0017] According to at least one of the embodiments of the present disclosure, a display device capable of effectively dissipating heat generated from a substrate and a light source can be provided.

[0018] According to at least one of the embodiments of the present disclosure, a display device can be provided that can ensure ease of assembly of a substrate to a heat sink or frame.

[0019] According to at least one of the embodiments of the present disclosure, a display device capable of increasing the rigidity of a heat sink or frame can be provided.

[0020] According to at least one of the embodiments of the present disclosure, a display device capable of maintaining a constant distance between a diffuser and a light source can be provided.

[0021] According to at least one of the embodiments of the present disclosure, a supporter can be provided that can be slidably coupled to a heat sink or frame at a narrow gap between light sources.

[0022] According to at least one of the embodiments of the present disclosure, a structure can be provided that improves the stability of a supporter coupled to a heat sink or a frame.

[0023] Further scope of the applicability of the present disclosure will become apparent from the detailed description below. However, since various modifications and variations within the spirit and scope of the present disclosure will become apparent to those skilled in the art, it should be understood that the detailed description and specific examples, such as preferred embodiments of the present disclosure, are given by way of example only.

[0024] Figures 1 to 18 are drawings illustrating examples of display devices according to embodiments of the present disclosure.

[0025] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Regardless of the drawing numbers, identical or similar components are given the same reference numbers and redundant descriptions thereof will be omitted.

[0026] The suffixes "module" and "part" used for components in the following description are given or used interchangeably only for the convenience of writing specifications, and do not have distinct meanings or roles in themselves.

[0027] In addition, when describing the embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the attached drawings are only intended to facilitate easy understanding of the embodiments disclosed in this specification, and the technical ideas disclosed in this specification are not limited by the attached drawings, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and technical scope of the present disclosure.

[0028] Terms that include ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by these terms. These terms are used solely to distinguish one component from another.

[0029] When a component is referred to as being "connected" or "connected" to another component, it should be understood that it may be directly connected or connected to that other component, but that there may be other components intervening. Conversely, when a component is referred to as being "directly connected" or "connected" to another component, it should be understood that there are no other components intervening.

[0030] Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0031] In this application, terms such as “include” or “have” are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in the specification, but should be understood not to exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0032]

[0033] Referring to FIG. 1, a display device (1) may include a display panel (10). The display panel (10) may display a screen.

[0034] The display device (1) may include a first long side (First Long Side, LS1), a second long side (Second Long Side, LS2) opposite to the first long side (LS1), a first short side (First Short Side, SS1) adjacent to the first long side (LS1) and the second long side (LS2), and a second short side (Second Short Side, SS2) opposite to the first short side (SS1). Meanwhile, for convenience of explanation, the lengths of the first and second long sides (LS1, LS2) are illustrated and described as being longer than the lengths of the first and second short sides (SS1, SS2), but it may also be possible for the lengths of the first and second long sides (LS1, LS2) to be approximately equal to the lengths of the first and second short sides (SS1, SS2).

[0035] The direction parallel to the long sides (LS1, LS2) of the display device (1) may be referred to as the left-right direction or the first direction (DR1). The direction parallel to the short sides (SS1, SS2) of the display device (1) may be referred to as the up-down direction or the second direction (DR2). The direction perpendicular to the long sides (LS1, LS2) and short sides (SS1, SS2) of the display device (1) may be referred to as the front-back direction or the third direction (DR3).

[0036] The direction in which the display panel (10) displays an image may be referred to as the front (F, z), and the opposite direction may be referred to as the rear (R). The first long side (LS1) may be referred to as the upper side (U, y). The second long side (LS2) may be referred to as the lower side (D). The first short side (SS1) may be referred to as the left side (Le, x). The second short side (SS2) may be referred to as the right side (Ri).

[0037] The first long side (LS1), the second long side (LS2), the first short side (SS1), and the second short side (SS2) may be referred to as edges of the display device (1). In addition, the point where the first long side (LS1), the second long side (LS2), the first short side (SS1), and the second short side (SS2) meet each other may be referred to as a corner.

[0038] For example, the point where the first short side (SS1) and the first long side (LS1) meet can be called the first corner (C1). The point where the first long side (LS1) and the second short side (SS2) meet can be called the second corner (C2). The point where the second short side (SS2) and the second long side (LS2) meet can be called the third corner (C3). The point where the second long side (LS2) and the first short side (SS1) meet can be called the fourth corner (C4).

[0039]

[0040] Referring to FIG. 2, the display device may include a display panel (10), a side frame (20), a backlight unit, a frame (80), and a back cover (90).

[0041] The display panel (10) can form the front surface of a display device and display an image. The display panel (10) can display an image by having a plurality of pixels output RGB (Red, Green, or Blue) for each pixel in accordance with the timing. The display panel (10) can be divided into an active area where an image is displayed and a de-active area where an image is not displayed. The display panel (10) can include a front substrate and a rear substrate that face each other with a liquid crystal layer therebetween. The display panel (10) can be referred to as an LCD panel.

[0042] The front substrate may include a plurality of pixels composed of red, green, and blue sub-pixels. The front substrate may output light corresponding to the color red, green, or blue according to a control signal.

[0043] The rear substrate may include switching elements. The rear substrate may switch the pixel electrode. For example, the pixel electrode may change the molecular arrangement of the liquid crystal layer according to a control signal input from an external source. The liquid crystal layer may include liquid crystal molecules. The arrangement of the liquid crystal molecules may change in response to a voltage difference generated between the pixel electrode and the common electrode. The liquid crystal layer may transmit light provided from the backlight unit to the front substrate or block it.

[0044] The side frame (20) may extend along the perimeter of the display panel (10). The side frame (20) may cover a side surface of the display panel (10). The side frame (20) may be coupled to the display panel (10) and may support the display panel (10). The side frame (20) may be referred to as a guide panel.

[0045] The backlight unit may be located at the rear of the display panel (10). The backlight unit may be coupled to the frame (80) at the front of the frame (80). The backlight unit may be driven by a full driving method or a partial driving method such as local dimming or impulsive. The backlight unit may include light sources (51) that provide light to the front, a substrate (40) on which the light sources (51) are mounted, lenses (53) that cover the light sources (51), a reflective sheet (60) that covers the front of the substrate (40), and an optical layer (30) that is located in front of the reflective sheet (60).

[0046] The light source (51) may be a light emitting diode (LED) chip or a package including at least one LED chip. For example, the light source (51) may be a colored LED that emits at least one color, such as red, blue, or green, or a white LED. For example, the light source (51) may be a mini LED. A power supply (not shown) of the display device may provide power to the light source (51) through the substrate (40).

[0047] Each of the plurality of lenses (53) can cover each of the plurality of light sources (51). A receiving portion (not shown) can be formed on a lower surface of the lens (53) and can surround the light source (51). A dome portion (not shown) can form an upper surface of the lens (53) and can have an approximately hemispherical shape. The lens (53) can include at least one of silicone, polymethyl methacrylate (PMMA), and polycarbonate (PC). Light provided from the light source (51) can be refracted or reflected by the lens (53) and spread at a wider angle than the light source (51).

[0048] The reflective sheet (60) may include at least one of a metal and a metal oxide, which are reflective materials. For example, the reflective sheet (60) may include a metal and / or metal oxide having a high reflectivity, such as at least one of aluminum (Al), silver (Ag), gold (Au), and titanium dioxide (TiO2). For example, a resin may be deposited or applied on the reflective sheet (60) and may diffuse light from the light source (51).

[0049] The optical layer (30) may face the display panel (10) with respect to the side frame (20). The optical layer (30) may evenly transmit light from a light source (51) to the display panel (10). The optical layer (30) may include a diffusion plate (31) and an optical sheet (32).

[0050] A diffuser (31) may be positioned between a reflective sheet (60) and an optical sheet (32). The diffuser (31) may diffuse light from a light source (51). In addition, an air gap may be formed between the reflective sheet (60) and the diffuser (31). The air gap may function as a buffer, and the light from the light source (51) may be widely spread by the air gap.

[0051] The supporter (39) can be positioned between the reflective sheet (60) and the diffuser plate (31), and one side can be joined to at least one of the reflective sheet (60), the heat sink (83), and the frame (80), and the other side can support the diffuser plate (31). The supporter (39) can be referred to as a spacer.

[0052] The optical sheet (32) may be adjacent to or in contact with the front surface of the diffusion plate (31). The optical sheet (32) may include at least one sheet. For example, the optical sheet (32) may include a plurality of sheets having different functions, and the plurality of sheets may be adhered or closely attached to each other. For example, the first optical sheet (32a) may be a diffusion sheet, and the second optical sheet (32b) may be a prism sheet. The diffusion sheet may prevent light from being partially concentrated from the diffusion plate (31) to uniformly distribute the light. The prism sheet may collect the light from the diffusion sheet and provide it to the display panel (10). At this time, the number and / or positions of the diffusion sheet and the prism sheet may be changed.

[0053] For example, the optical sheet (32) can change the wavelength or color of light provided from the light source (51). For example, the optical sheet (32) can include a red series phosphor and / or a green series phosphor. In this case, the light source (51) can provide blue series light, and the optical sheet (32) can change the light of the light source (51) to white. The optical sheet (32) can be referred to as a QD sheet (Quantum Dot Sheet).

[0054] The frame (80) may be positioned at the rear of the backlight unit. The display panel (10), the side frame (20), and the backlight unit may be coupled to the frame (80). The frame (80) may support the components of the display device described above and below. For example, the frame (80) may include a metal material such as an aluminum alloy. The frame (80) may be referred to as a main frame, a module cover, or a cover bottom.

[0055] The back cover (90) can cover the rear of the frame (80) and can be joined to the frame (80). For example, the back cover (90) can be an injection-molded resin material. As another example, the back cover (90) can include a metal material.

[0056]

[0057] Referring to Fig. 3, the frame (80) may include a flat portion (81). The flat portion (81) may form a central region of the frame (80). A heat sink (83) may cover the front of the flat portion (81) and may be coupled to the flat portion (81). The front of the heat sink (83) may be formed as a flat plane, and a protrusion (84) protruding forward may be formed in a portion of the front. The protrusion (84) may be provided with a coupling portion (85) into which a supporter (39) may be inserted and fixed. The protrusion (84) may be referred to as a curved portion or a support rib.

[0058] A plurality of coupling portions (85) may be formed on the front surface of the heat sink (83). The plurality of coupling portions (85) may be formed in each of a plurality of regions (83A1, 83A2, 83A3, 83A4, 83A5, 83A6, 83A7, 83A8, 83A9) of the heat sink (83) (see FIG. 4). The plurality of coupling portions (85) may be arranged symmetrically in the vertical direction and the left-right direction. In this case, each of the plurality of supporters (39) may be coupled to each of the plurality of coupling portions (85). The number and arrangement of the supporters (39) provided in the display device may be variably determined in consideration of the size of the display device, the installation environment, etc.

[0059] As another example, the display device may not be provided with a heat sink (83). A protrusion (84) protruding forward may be formed on a portion of the front surface of the flat portion (81) of the frame (80). The protrusion (84) may be provided with a connecting portion (85) into which a supporter (39) may be inserted and fixed.

[0060] For convenience, the protrusion (84) and the connecting portion (85) are described as being formed on the front surface of the heat sink (83). However, the features related to the protrusion (84) and the connecting portion (85) described below can be equally applied even when the protrusion (84) and the connecting portion (85) are formed on the frame (80).

[0061] The side portion (70) may be positioned at the edge of the heat sink (83). The side portion (70) may include at least one of a metal and a metal oxide that is a reflective material. For example, the side portion (70) may include a metal and / or metal oxide having a high reflectivity, such as at least one of aluminum (Al), silver (Ag), gold (Au), and titanium dioxide (TiO2). For example, a resin may be deposited or applied on the side portion (70).

[0062] And, the side portion (70) may include a first side portion (71), a second side portion (72), a third side portion (73), and a fourth side portion (74). The side portion (70) may be referred to as a chamfer portion.

[0063]

[0064] Referring to FIGS. 4 and 5, the substrate (40) may cover the front of the heat sink (83) and may be coupled to the heat sink (83). For example, the substrate (40) may include at least one of polycarbonate (PC), polyethylene terephthalate (PET), glass, and silicon. The substrate (40) may be a printed circuit board (PCB).

[0065] The substrate (40) may have an overall fork shape. The substrate (40) may include straps. The straps may be referred to as first plates. The straps (412, 422) may extend long in the horizontal direction. For example, the straps (412) included in the substrate (41) may extend long in a straight shape in the horizontal direction (see FIG. 7). For example, the straps (422) included in the substrate (42) may extend long in the horizontal direction, but may have a shape that is bent in a zigzag shape in a direction intersecting the horizontal direction (see FIG. 10). The straps may be spaced apart from each other in the vertical direction. In this specification, the substrate (41) and the substrate (42) are distinguished by their drawing symbols according to the shape of the straps, but both the substrates (41, 42) are embodiments of the substrate (40) and include the characteristics of the substrate (40) described in this specification.

[0066] The substrate (40) may include a second plate (411, 421) and a plurality of first plates (412, 422). The second plate (411, 421) may extend vertically. The plurality of first plates (412, 422) may extend horizontally from one long side of the second plate (411, 421) and may be spaced apart from each other in the vertical direction.

[0067] The substrate (40) may be provided in at least one form. The substrate (40) may include a plurality of adjacent substrates (41a, 41b, 41c, 41d, 41e, 41f, 41g, 41h, 41i). The first substrate (41a), the second substrate (41b), the third substrate (41c), the fourth substrate (41d), the fifth substrate (41e), the sixth substrate (41f), the seventh substrate (41g), the eighth substrate (41h), and the ninth substrate (41i) may be arranged on an imaginary horizontal plane (i.e., the XY plane). Each of the plurality of substrates (41a, 41b, 41c, 41d, 41e, 41f, 41g, 41h, 41i) can be coupled to each of the plurality of regions (83A1, 83A2, 83A3, 83A4, 83A5, 83A6, 83A7, 83A8, 83A9) of the heat sink (83).

[0068] Each of the plurality of lenses (53) can cover each of the plurality of light sources (51) mounted on the substrate (40). The power supply (not shown) of the display device can supply power to the light sources (51) through connectors (not shown) mounted on the rear surface of the substrate (40).

[0069] The reflective sheet (60) can cover the front of the substrate (40) and can be bonded to the substrate (40). The reflective sheet (60) can cover the second plate (411, 421), the plurality of first plates (412, 422), and the space between the plurality of first plates (412, 422). The lenses (53, see FIGS. 2 and 13) can be positioned in the holes (611) of the reflective sheet (60).

[0070] The reflective sheet (60) may have a rectangular plate shape. The reflective sheet (60) may be provided in at least one form. The reflective sheet (60) may include a plurality of adjacent reflective sheets (60a, 60b, 60c, 60d, 60e, 60f, 60g, 60h, 60i). The first reflective sheet (60a), the second reflective sheet (60b), the third reflective sheet (60c), the fourth reflective sheet (60d), the fifth reflective sheet (60e), the sixth reflective sheet (60f), the seventh reflective sheet (60g), the eighth reflective sheet (60h), and the ninth reflective sheet (60i) may be positioned on an imaginary horizontal plane (i.e., the XY plane).

[0071] Each of the plurality of reflective sheets (60a, 60b, 60c, 60d, 60e, 60f, 60g, 60h, 60i) can be bonded to each of the plurality of substrates (41a, 41b, 41c, 41d, 41e, 41f, 41g, 41h, 41i). The size of each of the plurality of reflective sheets can correspond to the size of each of the plurality of substrates. The size of the first reflective sheet (60a) can correspond to the size of the first substrate (41a). For example, the size of the first reflective sheet (60a) can be substantially the same as the size of the first substrate (41a).

[0072]

[0073] Referring to FIG. 6 together with FIG. 5, the first substrate (41a) may include a plurality of first plates (412) and a second plate (411). The first substrate (41a) may have an overall fork-type shape. Meanwhile, the second plate (411) may be referred to as a vertical plate or body, and the first plate (412) may be referred to as a horizontal plate or rib.

[0074] The second plate (411) may be elongated. For example, the longitudinal direction of the second plate (411) may be parallel to the vertical direction. A connector (not shown) may be mounted on one surface of the second plate (411). A plurality of first plates (412) may be elongated in a direction intersecting the longitudinal direction of the second plate (411) from one long side of the second plate (411) and may be spaced apart from each other in the longitudinal direction of the second plate (411). The direction in which the plurality of first plates (412) are spaced apart from each other may be parallel to the longitudinal direction of the second plate (411), i.e., the vertical direction. The length (41Lb) of each of the plurality of first plates (412) may be greater than the length (41Ha) of the second plate (411). The width (41La) of the second plate (411) can be defined in the longitudinal direction of the plurality of first plates (412). The width (41Hb) of each of the plurality of first plates (412) can be defined in the longitudinal direction of the second plate (411) and can be smaller than the width (41La) of the second plate (411). Meanwhile, the longitudinal direction of the plurality of first plates (412) can be referred to as the longitudinal direction of the first substrate (41a).

[0075] The 1-1 plate (412a), the 1-2 plate (412b), the 1-3 plate (412c), the 1-4 plate (412d), the 1-5 plate (412e), the 1-6 plate (412f), the 1-7 plate (412g), the 1-8 plate (412h), the 1-9 plate (412i), the 1-10 plate (412j), the 1-11 plate (412k), the 1-12 plate (412l), the 1-13 plate (412m), the 1-14 plate (412n), and the 1-15 plate (412o) can be arranged sequentially in the vertical direction.

[0076] A plurality of light sources (51) may be mounted on the second plate (411) and the plurality of first plates (412) and may be spaced apart from each other. For example, the plurality of light sources (51) may be attached or bonded on the first substrate (41). The plurality of light sources (51) may be positioned on the second plate (411) and the plurality of first plates (412) in rows and columns. The rows may be defined in the left-right direction, and the columns may be defined in the up-down direction. For example, the light source (51) may be an LED (Light Emitting Diode) chip or a package including at least one LED chip. For example, the light source (51) may be a colored LED that emits at least one color such as red, blue, green, or a white LED. For example, the light source (51) may be a mini LED.

[0077] Each of the plurality of lenses (53) can cover each of the plurality of light sources (51). A receiving portion (not shown) can be formed on a lower surface of the lens (53) and can surround the light source (51). The covering portion (not shown) can form an upper surface of the lens (53). For example, the covering portion can have a dome shape or a shape in which two domes overlap. For example, the lens (53) can be a lens with asymmetric light distribution. The lens (53) can include at least one of resin, silicone, polymethyl methacrylate (PMMA), and polycarbonate (PC). Light provided from the light source (51) can be refracted or reflected by the lens (53) and spread at a wider angle than the light source (51). That is, a sufficient amount of light can be secured over a wide range in comparison to the number and position of light sources (51) mounted on the first substrate (41a). For example, the lens (53) may be a refractive lens. Meanwhile, the lens (53) may be referred to as a secondary lens.

[0078] The first reflective sheet (60a) can cover not only the second plate (411) of the first substrate (41a) and the plurality of first plates (412), but also the space between the plurality of first plates (412). Accordingly, a sufficient amount of light can be secured over a wide range in comparison to the number and positions of the light sources (51) mounted on the first substrate (41a). Meanwhile, a plurality of lens holes (611) can be formed penetrating the first reflective sheet (60a), and a plurality of lenses (53) can be arranged.

[0079] The supporter (39) may be positioned between a plurality of first plates (412). The supporter (39) may extend in the longitudinal direction of the plurality of first plates (412), i.e., in the left-right direction.

[0080] Meanwhile, the description of the first substrate (41a) and the first reflective sheet (60a) described above can be equally applied to the remaining substrates (41b, 41c, 41d, 41e, 41f, 41g, 41h, 41i, see FIG. 4) and the remaining reflective sheets (60b, 60c, 60d, 60e, 60f, 60g, 60h, 60i, see FIG. 4).

[0081] For example, the first substrate (41a) may have substantially the same shape as the remaining substrates (41b, 41c, 41d, 41e, 41f, 41g, 41h, 41i). For example, one substrate may be separated into any two of the substrates (41) through a cutting process. Accordingly, the manufacturing cost of the substrate (41) may be reduced.

[0082]

[0083] Fig. 7 is a perspective view showing an enlarged view of the “AA” area of ​​Fig. 6, and Fig. 8 is a cross-sectional view of the “AA” area viewed from the left and right.

[0084] Referring to FIGS. 7 and 8 together with FIG. 6, the heat sink (83) can be positioned at the front of the frame (80) and can be coupled to the frame (80). That is, the heat sink (83) can be provided on the front of the frame (80). The heat sink (83) can cover the central area of ​​the frame (80). The heat sink (83) can provide a flat front surface on which the substrate (40) is installed.

[0085] The substrate (40) can be positioned in front of the heat sink (83) and can be coupled to the heat sink (83). That is, the substrate (40) can be provided on the front surface of the heat sink (83).

[0086] A protrusion (84) may be formed on the heat sink (83). The protrusion (84) may protrude forward toward the display panel (10). The protrusion (84) may be positioned between adjacent first plates among a plurality of first plates (412, 422). The protrusion (84) may extend in the longitudinal direction of the first plates (412, 422) from one end of the first plates (412, 422) to one side of the second plate (411, 421).

[0087] The protrusion (84) may include at least one support rib (841) protruding forward. For example, the protrusion (84) may include three support ribs. Each of the support ribs (841) may have a shape that protrudes forwardly from the heat sink (83) and extends in the longitudinal direction of the first plates (412, 422). The support ribs (841) may be referred to as ridges or protrusions. The space between adjacent support ribs (841) may have a rearwardly convex shape. The space between adjacent support ribs (841) may be referred to as a groove or a depression. The height at which the support ribs (841) protrude forward may be defined as the height (Ha) of the protrusion (84). The height (Ha) at which the protrusion (84) protrudes forward from the heat sink (83) may be equal to or smaller than the thickness of the substrate (40) defined in the front-back direction. The height (Ha) at which the protrusion (84) protrudes forward from the heat sink (83) may be equal to or smaller than the thickness of the first plates (412, 422). The width at which at least one support rib (841) is arranged adjacent to each other in the longitudinal direction of the second plates (411, 421) may be defined as the width (La) of the protrusion (84). The width (La) of the protrusion (84) may be equal to or smaller than the gap (Gb) between adjacent first plates among the first plates (412, 422).

[0088] Accordingly, the protrusion (84) can support the reflective sheet (60) placed on the front side of the substrate (40). The protrusion (84) can support the reflective sheet (60) by contacting at least a portion of the rear side of the reflective sheet (60).

[0089] By supporting the reflective sheet (60) by making contact with the rear surface of the reflective sheet (84), the reflective sheet can be prevented from sagging backward between the adjacent first plates, and light emitted from the light source can be evenly reflected by the reflective sheet to the optical layer (30).

[0090] The protrusion (84) may be formed integrally with the heat sink (83). For example, the heat sink (83) may be processed by press molding, and the protrusion (84) may be formed on the heat sink (83) by processing. The heat sink (83) may include a thermally conductive material. For example, the heat sink (83) may include a material with excellent thermal conductivity, such as aluminum, graphite, or copper.

[0091] Since the heat sink includes a heat-conducting material and the protrusions are arranged in a form that protrudes forward into the space between the adjacent first plates, heat generated from the substrate and the light source can be effectively dissipated by the heat sink and the protrusions.

[0092] Additionally, by forming a protrusion on the heat sink, the rigidity of the heat sink can be increased.

[0093]

[0094] Figure 9 is a perspective view showing an enlarged view of the “BB” area of ​​Figure 6.

[0095] Referring to FIG. 9 together with FIG. 6, one end of the protrusion (84) can support the second plate (411, 421). One end of the protrusion (84) can contact the second plate (411, 421). One end of the protrusion (84) can have a shape cut in the longitudinal direction and / or the front-back direction of the second plate (411, 421). One end of the protrusion (84) can have a flat cross-section in the longitudinal direction and / or the front-back direction of the second plate (411, 421).

[0096] A plurality of holes (86) may be formed in the heat sink (83). The holes (86) may be arranged adjacent to one end of the protrusions (84) and may extend in a longitudinal direction of the second plate (411, 421), a width direction of the protrusions (84), or an up-down direction. Each of the plurality of holes (86) may be formed adjacent to one end of each of the protrusions (84). The length (86H) along which the holes (86) extend may be greater than or equal to the width (La) of the protrusions (84). The length (86H) along which the holes (86) extend may be greater than or equal to the spacing (Gb) between the adjacent first plates.

[0097] When the heat sink (83) is processed by press forming, a hole (86) is formed in one end of the protrusion (84), so that one end of the protrusion (84) can have a shape cut in the longitudinal direction and / or the front-back direction of the second plate (411, 421). The flat cross-section of one end of the protrusion (84) can come into contact with one side of the second plate (411, 421).

[0098] Accordingly, when a fork-shaped substrate is attached to a heat sink, the substrate can be accurately positioned on the heat sink. Furthermore, guide holes required for accurate substrate placement can be eliminated or minimized. Furthermore, the ease of assembly of the substrate to the heat sink or frame can be ensured.

[0099]

[0100] Referring to FIG. 10 together with FIG. 5, the first substrate (42a) may include a plurality of first plates (422) and a second plate (421). The first substrate (42a) may have a fork-type shape overall. The plurality of first plates (422) may extend long in the horizontal direction, but may have a shape that is bent in a zigzag shape in a direction intersecting the horizontal direction.

[0101] The second plate (421) may be extended vertically. A connector (not shown) may be mounted on one surface of the second plate (421). A plurality of first plates (422) may be extended vertically from one long side of the second plate (421) in a direction intersecting the longitudinal direction of the second plate (421) and may be spaced apart from each other in the longitudinal direction of the second plate (421). The direction in which the plurality of first plates (422) are spaced apart from each other may be parallel to the longitudinal direction of the second plate (421), i.e., the vertical direction. The length of each of the plurality of first plates (422) may be greater than the length of the second plate (421). The width of the second plate (421) may be defined in the longitudinal direction of the plurality of first plates (422). The width of each of the plurality of first plates (422) can be defined in the longitudinal direction of the second plate (421) and can be smaller than the width of the second plate (421). The longitudinal direction of the plurality of first plates (422) can be referred to as the longitudinal direction of the first substrate (42a).

[0102] The 1-1 plate (422a), the 1-2 plate (422b), the 1-3 plate (422c), the 1-4 plate (422d), the 1-5 plate (422e), the 1-6 plate (422f), the 1-7 plate (422g), the 1-8 plate (422h), the 1-9 plate (422i), the 1-10 plate (422j), the 1-11 plate (422k), the 1-12 plate (422l), the 1-13 plate (422m), the 1-14 plate (422n), and the 1-15 plate (422o) can be arranged sequentially in the vertical direction.

[0103] A plurality of light sources (51) may be mounted on the second plate (421) and the plurality of first plates (422), and may be spaced apart from each other. For example, the plurality of light sources (51) may be attached or bonded on the first substrate (42a). The plurality of light sources (51) may be positioned on the second plate (421) and the plurality of first plates (422) in rows and columns. The rows may be defined in the left-right direction, and the columns may be defined in the up-down direction.

[0104] A plurality of first plates (422) may have a shape that is elongated in a horizontal direction and bent in a zigzag shape in a direction intersecting the horizontal direction. The first plates (422) may be provided with at least one first bending portion (4221) and at least one second bending portion (4222). The first bending portion (4221) may protrude convexly in a first direction intersecting the longitudinal direction of the first plates (422). For example, the upper surface of the first bending portion (4221) may protrude convexly in the upward direction, and the lower surface of the first bending portion (4221) may be indented concavely in the upward direction. The second bending portion (4222) may extend from the first bending portion (4221) and protrude convexly in a direction opposite to the first direction. For example, the lower surface of the second bending portion (4222) may be convexly protruded in the downward direction, and the upper surface of the second bending portion (4222) may be concavely indented in the downward direction. The first bending portion (4221) and the second bending portion (4222) may be alternately arranged along the longitudinal direction of the first plates (422).

[0105] The protrusion (84) may have a shape corresponding to the zigzag shape of the first plates (422). The protrusion (84) may have a shape corresponding to a gap formed between adjacent first plates. The protrusion (84) may have a shape corresponding to the shape in which the first bending portion (4221) and the second bending portion (4222) protrude between the adjacent first plates. That is, the protrusion (84) may have a shape that extends in the longitudinal direction of the first plates (422), but has a portion that is convexly bent upward and a portion that is convexly bent downward repeatedly.

[0106] The first reflective sheet (60a) can cover not only the second plate (421) of the first substrate (42a) and the plurality of first plates (422), but also the space between the plurality of first plates (422). Accordingly, a sufficient amount of light can be secured over a wide range in comparison to the number and positions of the light sources (51) mounted on the first substrate (42a). Meanwhile, a plurality of lens holes (611) can be formed penetrating the first reflective sheet (60a), and a plurality of lenses (53) can be arranged.

[0107] The first substrate (42a) may have substantially the same shape as the remaining substrates. For example, one substrate may be separated into any two of the substrates (42) through a cutting process. Accordingly, the manufacturing cost of the substrate (42) can be reduced.

[0108]

[0109] Fig. 11 is a plan view showing an enlarged view of the “CC” area of ​​Fig. 10, and Fig. 12 is a plan view showing an enlarged view of the “DD” area of ​​Fig. 10.

[0110] Referring to FIG. 11 together with FIG. 10, the protrusion (84) may include at least one support rib (841) protruding forward. Each of the support ribs (841) may protrude convexly forward from the heat sink (83) and have a shape corresponding to the curved shape of the first plates (422).

[0111] The protrusion (84) may include guide ribs (84a, 84b). The guide ribs (84a, 84b) may be arranged at both ends or at either end of the longitudinal direction of the support rib (841). The first guide rib (84a) may be arranged at one end of the support rib (841) adjacent to the second plate (421). The first guide rib (84a) may be arranged between the second plate (421) and the support rib (841). The first guide rib (84a) may extend in one direction.

[0112] For example, the first guide rib (84a1) may extend in a direction intersecting the longitudinal direction of the second plate (421). One end of the first guide rib (84a1) may be connected to the support rib (841), and the other end of the first guide rib (84a1) may have a shape cut in the longitudinal direction and / or the front-rear direction of the second plate (421). The other end of the first guide rib (84a1) may have a flat cross-section in the longitudinal direction and / or the front-rear direction of the second plate (421). The flat cross-section of the first guide rib (84a1) may be in contact with one side of the second plate (421).

[0113] For example, the first guide rib (84a2) may extend in the longitudinal direction of the second plate (421). One end and the other end of the first guide rib (84a2) may have a shape cut in a direction intersecting the longitudinal direction of the second plate (421) and / or in the front-back direction. The cross sections of one end and the other end of the first guide rib (84a2) may contact one side of the adjacent first plates (422).

[0114]

[0115] Referring to FIG. 12 together with FIG. 10, the second guide rib (84b) of the protrusion (84) can be arranged at the other end of the support rib (841). The second guide rib (84b) can be extended in one direction.

[0116] For example, the second guide rib (84b1) may extend in a direction intersecting the longitudinal direction of the second plate (421). One end of the second guide rib (84b1) may be connected to the support rib (841), and the other end of the second guide rib (84b1) may have a shape cut in the longitudinal direction and / or the front-back direction of the second plate (421). The other end of the second guide rib (84b1) may have a flat cross-section in the longitudinal direction and / or the front-back direction of the second plate (421). The cross-section of the other end of the second guide rib (84b1) may be aligned parallel to the ends of the adjacent first plates (422) in the longitudinal direction of the second plate (421).

[0117] For example, the second guide rib (84b2) may extend in the longitudinal direction of the second plate (421). One end and the other end of the second guide rib (84b2) may have a shape cut in a direction intersecting the longitudinal direction of the second plate (421) and / or in the front-back direction. The cross sections of one end and the other end of the second guide rib (84b2) may contact one side of the adjacent first plates (422).

[0118] Accordingly, when a substrate having a zigzag shape is bonded to a heat sink, the substrate can be accurately positioned on the heat sink. Furthermore, guide holes required on the substrate for accurate substrate placement can be eliminated or minimized. Furthermore, the ease of assembly of the substrate to the heat sink or frame can be ensured.

[0119]

[0120] Referring to FIGS. 13 to 15, the supporter (39) can be coupled to at least one of the reflective sheet (60), the heat sink (83), and the frame (80). At least a portion of the supporter (39) can protrude forward of the reflective sheet (60) through the hole (612) of the reflective sheet (60).

[0121] A supporter (39) may include a body (391), a tip (392), a plurality of legs (393), and a fixed portion (394). The body (391) may be referred to as an elastic portion or a deformable portion. The tip (392) may be referred to as a head, a shear portion, or a tower. The legs (393) may be referred to as a fastening portion or a hook portion.

[0122] The body (391) may include a base (391a) and elastic parts (391b, 391c, 391d).

[0123] The base (391a) can be elongated left and right, narrowed up and down, and thinned front and back. The direction in which the base (391a) is elongated can be defined as the longitudinal direction of the supporter (39). The base (391a) can have a shape corresponding to the support rib (841) of the protrusion (84). The front of the base (391a) can protrude forward in a convex manner, and the rear can be recessed forward in a concave manner. The shape of the recessed rear can correspond to the shape in which the support rib (841) protrudes forward. The length of the base (391a) can be greater than the lengths of the elastic parts (391b, 391c, 391d).

[0124] One end and the other end of the elastic portion (391b, 391c, 391d) may be fixed to the front surface of the base (391a). The elastic portion (391b, 391c, 391d) may have a semicircular shape with a sunken center overall. The elastic portion (391b, 391c, 391d) may form an arc in a direction from the base (391a) toward the optical layer (30). A buffer space (39s) may be formed between the base (391a) and the elastic portion (391b, 391c, 391d). The elastic portion (391b, 391c, 391d) may be referred to as a bridge.

[0125] The first part (391b) can form one end of the elastic portion (391b, 391c, 391d) and can be bent. The second part (391c) can form the other end of the elastic portion (391b, 391c, 391d) and can be bent. The third part (391d) can be positioned between the first part (391b) and the second part (391c) and can connect the first part (391b) and the second part (391c).

[0126] The tip (392) may protrude forward from the third part (391d). The front end of the tip (392) may be positioned forward relative to the first part (391b) and the second part (391c). The tip (392) may be positioned furthest forward from the base (391a).

[0127] The legs (393) may protrude from the base (391a) in a direction intersecting the longitudinal direction of the supporter (39). The legs (393) may protrude from the base (391a) toward the first plate (412, 422) of the substrate (40). For example, the legs (393) may include a first leg (393a) protruding from one end of the base (391a) in a direction intersecting the longitudinal direction of the supporter (30), a second leg (393b) protruding from the other end of the base (391a) in a direction in which the first leg (393a) protrudes, a third leg (393c) protruding from the other end of the base (391a) in a direction opposite to the second leg (393b), and a fourth leg (393d) protruding from one end of the base (391a) in a direction opposite to the first leg (393a).

[0128] The fixed part (394) may include a hole (394b) penetrating the base (391a) in the front-back direction, a fixed leg (394a) extending from one side of the hole (394b) into the inside of the hole, and a fixed projection (394c) protruding from one end of the fixed leg (394a) toward the rear of the fixed leg (394a). The fixed projection (394c) may be positioned at the rear of the tip (392) in the front-back direction. The fixed projection (394c) may protrude from the base (391a) toward the heat sink (83).

[0129] The supporter (39) may be positioned between the reflective sheet (60) and the optical layer (30). The supporter (39) may be positioned between the reflective sheet (60) and the diffuser plate (31). The tip (392) of the supporter (39) may be adjacent to the rear surface of the diffuser plate (31). The front end of the tip (392) may be in contact with the rear surface of the diffuser plate (31) or may be slightly spaced apart therefrom to support the rear surface of the diffuser plate (31).

[0130] The supporter (39) may be elastic. The supporter (39) may be an injection-molded material. For example, the supporter (39) may include a plastic or resin material. The supporter (39) may include a material with excellent impact resistance and high-temperature reliability.

[0131] Accordingly, the gap between the diffuser and the light source can be maintained constant.

[0132]

[0133] Referring to Fig. 16, a joint (85) can be formed on a heat sink (83). The joint (85) can be formed on a protrusion (84).

[0134] The connecting portion (85) may include a plurality of insertion holes (851) extending in the longitudinal direction of the protrusion (84), a catch groove (852) formed on one side of each of the plurality of insertion holes (851), and a fixing hole (853) arranged between the plurality of insertion holes (851).

[0135] The plurality of insertion holes (851) can be formed long by cutting a portion of the protrusion (84) in the longitudinal direction of the protrusion (84). The plurality of insertion holes (851) include a first insertion hole (851a) spaced apart from the fixing hole (853) in the longitudinal direction of the protrusion (84) and into which a first leg (393a) is inserted, a second insertion hole (851b) facing the first insertion hole (851a) in the longitudinal direction of the protrusion (84) with respect to the fixing hole (853) and into which a second leg (393b) is inserted, a third insertion hole (851c) spaced apart from the second insertion hole (851b) in the width direction of the protrusion (84) and into which a third leg (393c) is inserted, and a fourth insertion hole (851a) spaced apart from the first insertion hole (851a) in the width direction of the protrusion (84) and facing the third insertion hole (851c) with respect to the fixing hole (853) in the longitudinal direction of the protrusion (84) and into which a fourth leg (393d) is inserted. It may include an insertion hole (851d).

[0136] The first engaging groove (852a) may be formed by recessing in the longitudinal direction of the protrusion (84) at one side boundary of the first insertion hole (851a). The second engaging groove (852b) may be formed by recessing in the longitudinal direction of the protrusion (84) at one side boundary of the second insertion hole (851b). The third engaging groove (852c) may be formed by recessing in the longitudinal direction of the protrusion (84) at one side boundary of the third insertion hole (851c). The fourth engaging groove (852d) may be formed by recessing in the longitudinal direction of the protrusion (84) at one side boundary of the fourth insertion hole (851d). The first to fourth engaging grooves (852a, 852b, 852c, 852d) may all be formed by recessing in the same direction.

[0137] The first to fourth insertion holes (851a, 851b, 851c, 851d) may be formed by penetrating at least a portion of the side surface and the front surface of the support rib (841) of the protrusion (84) and the valleys between the adjacent support ribs (841). For example, the first and second insertion holes (851a, 851b) may be formed by penetrating a portion of the side surface, the front surface, and a portion of the valley of a support protrusion adjacent to one side of a support protrusion arranged at the center of the protrusion (84). For example, the third and fourth insertion holes (851c, 851d) may be formed by penetrating a portion of the side surface, the front surface, and a portion of the valley of a support protrusion adjacent to the other side of the support protrusion arranged at the center of the protrusion (84).

[0138] The first to fourth catch grooves (852a, 852b, 852c, 852d) may be formed by penetrating at least a portion of a side surface of a support rib (841) of a protrusion (84) and a valley between adjacent support ribs (841). For example, the first and second catch grooves (852a, 852b) may be formed by penetrating a portion of a side surface and a valley of a support protrusion adjacent to one side of a support protrusion disposed at the center of the protrusion (84). For example, the third and fourth catch grooves (852c, 852d) may be formed by penetrating a portion of a side surface and a valley of a support protrusion adjacent to the other side of a support protrusion disposed at the center of the protrusion (84).

[0139] The fixing hole (853) may be arranged on the front side protruding forward from the support rib (841) of the protrusion (84). For example, the fixing hole (853) may be arranged on the front side of the support protrusion arranged at the center of the protrusion (84). The fixing hole (853) may be arranged closer to the second insertion hole (851b) and the third insertion hole (851c) than to the first insertion hole (851a) and the fourth insertion hole (851d). The fixing protrusion (394c) may be inserted into the fixing hole (853).

[0140]

[0141] Referring again to FIGS. 15 and 16, the length (Lb) of the plurality of legs (393) extending in the longitudinal direction of the supporter (39) may be equal to or less than the length (Lc) of the plurality of insertion holes (851) extending in the longitudinal direction of the protrusion (84). The length (Ld) of the portion forming the boundary of the engaging groove (852) of the heat sink (83) may be equal to or greater than the length (Lb) of the legs (393).

[0142] The width (Wb) defined by both ends of the legs spaced apart in a direction intersecting the longitudinal direction of the supporter (39) may be equal to or smaller than the width (Wd) defined by both ends of the insertion holes spaced apart in the width direction of the protrusion (84). The width (Wb) defined by both ends of the legs spaced apart in a direction intersecting the longitudinal direction of the supporter (39) may be larger than the width (Wc) defined by both ends of the catch grooves (852) spaced apart in the width direction of the protrusion (84). The width (Wa) of the base (391a) defined in a direction intersecting the longitudinal direction of the supporter (39) may be equal to or smaller than the width defined by the side surfaces of the support protrusions adjacent to both sides of the support protrusions arranged at the center of the protrusion (84).

[0143] The gap between the fixing hole (853) and the first insertion hole (851a) may be greater than the gap between the fixing protrusion (394c) and the first leg (393a).

[0144]

[0145] Referring to FIGS. 17 and 18, the supporter (39) is positioned between the adjacent first plates (412, 422) and can be detachably coupled to the coupling portion (85) in the longitudinal direction of the supporter (39). The supporter (39) can be detachably coupled to the coupling portion (85) while sliding along the longitudinal direction of the protrusion (84).

[0146] The supporter (39) can be mounted on the protrusion (84). At this time, the rear surface of the supporter (39) comes into contact with the front surface of the protrusion (84), and each of the plurality of legs (393) of the supporter (39) can be inserted into each of the plurality of insertion holes (851) of the connecting portion (85).

[0147] Each of the legs (393) inserted into the insertion hole (851) can be moved to one side along the length direction of the protrusion (84). Each of the legs (393) can be moved from the insertion hole (851) to the engaging groove (852). At this time, a part of the front surface of each of the plurality of legs (393) can be caught on the rear surface of a portion forming a boundary of the engaging groove (852) of the heat sink (83). The engaging groove (852) can be located on a part of the front surface of each of the plurality of legs (393). In addition, the fixing protrusion (393c) can be moved along the front surface of the support protrusion of the protrusion (84) and then inserted into the fixing hole (853).

[0148] Accordingly, the supporter (39) coupled to the joint (85) can be minimized from tilting up and down or left and right, and the stability of the supporter coupled to the heat sink or frame can be improved.

[0149] Additionally, the user can slide the supporter (39) into or out of the joint (85). Accordingly, the supporter can be slidably attached to the heat sink or frame in the narrow gap between the light sources.

[0150] The diffuser plate (31) may be deformed. For example, deformation of the diffuser plate (31) may occur due to a temperature increase caused by the operation of the display device or due to transportation or storage of the display device. The deformation of the diffuser plate (31) may be sagging.

[0151] When the diffuser plate (31) sags, the tip (392) of the supporter (39) can support the diffuser plate (31). Depending on the degree of sagging of the diffuser plate (31), the elastic parts (391b, 391c, 391d) can be deformed toward the base (391a). Depending on the degree of restoration of the diffuser plate (31), the elastic parts (391b, 391c, 391d) can be restored to their original state by elastic force.

[0152] Accordingly, the supporter (39) can support the deflection of the diffuser plate (31) at multiple points. That is, the supporter (39) can maintain the gap between the reflective sheet (60) and the diffuser plate (31) at a certain level while minimizing damage to the diffuser plate (31).

[0153]

[0154] As described above, according to at least one of the embodiments of the present disclosure, a display device capable of improving the deterioration of the light performance of a backlight unit can be provided.

[0155] According to at least one of the embodiments of the present disclosure, a display device capable of effectively dissipating heat generated from a substrate and a light source can be provided.

[0156] According to at least one of the embodiments of the present disclosure, a display device can be provided that can ensure ease of assembly of a substrate to a heat sink or frame.

[0157] According to at least one of the embodiments of the present disclosure, a display device capable of increasing the rigidity of a heat sink or frame can be provided.

[0158] According to at least one of the embodiments of the present disclosure, a display device capable of maintaining a constant distance between a diffuser and a light source can be provided.

[0159] According to at least one of the embodiments of the present disclosure, a supporter can be provided that can be slidably coupled to a heat sink or frame at a narrow gap between light sources.

[0160] According to at least one of the embodiments of the present disclosure, a structure can be provided that improves the stability of a supporter coupled to a heat sink or a frame.

[0161]

[0162] Referring to FIGS. 1 to 18, a display device (1) according to one aspect of the present disclosure includes: a display panel (10); a display panel (10); a frame (80) positioned at the rear of the display panel; a substrate (40) positioned between the display panel and the frame and coupled to the frame; and a heat sink (83) positioned between the substrate and the frame and coupled to the substrate and the frame; wherein the substrate (40) includes a plurality of first plates (412, 422) that are elongated and spaced apart from each other, and the heat sink (83) may include a curved portion (84) that protrudes forward toward the display panel (10) and is positioned between neighboring first plates among the plurality of first plates (412, 422).

[0163] The display device (1) further includes a plurality of light sources (51) positioned on the substrate and spaced apart from each other; and a reflective sheet (60) positioned on the substrate, covering the plurality of first plates and between the plurality of first plates, and including a hole (611) through which the light sources (51) pass; and the curved portion (84) can support the reflective sheet (60) by contacting at least a portion of the rear surface of the reflective sheet (60).

[0164] The substrate (40) further includes a second plate (411, 421) that extends in a direction intersecting the longitudinal direction of the first plates (412, 422) and is connected to one end of the first plates (411, 421); and the protrusion (84) can extend in a longitudinal direction of the first plates (412, 422) from the other end of the first plates (412, 422) to the second plate (411, 421).

[0165] The height (Ha) of the above-mentioned curved portion (84) protruding forward may be equal to or smaller than the thickness of the substrate (40), and the width (La) of the above-mentioned curved portion (84) defined in the longitudinal direction of the second plate (411, 421) may be equal to or smaller than the gap (Gb) between adjacent first plates among the first plates (412, 422).

[0166] One end of the above-mentioned bending portion (84) supports the second plate (411, 421), and the heat sink (83) further includes a hole (86) that is positioned adjacent to one end of the above-mentioned bending portion (84) and extends in the width direction of the above-mentioned bending portion (84), and the length by which the hole (86) extends may be greater than or equal to the width (La) of the above-mentioned bending portion (84).

[0167] The above-mentioned bending portion (84) may include at least one support rib (841) that protrudes forward and extends in the longitudinal direction of the first plates (412, 422); and a guide rib (84a, 84b) that protrudes forward and is arranged at both ends or one end of the longitudinal direction of the support rib (841) and extends in a direction intersecting the longitudinal direction of the first plates (412, 422).

[0168] The first plates (422) include at least one first bending portion (4221) that protrudes convexly in a first direction intersecting the longitudinal direction of the first plates (422); and at least one second bending portion (4222) that extends from the first bending portion (4221) and protrudes in a direction opposite to the first direction; wherein the first bending portion (4221) and the second bending portion (4222) are alternately arranged along the longitudinal direction of the first plates (422), and the bending portion (84) may have a shape corresponding to a shape in which the first bending portion (4221) and the second bending portion (4222) protrude between adjacent first plates.

[0169] The above heat sink (83) may include a heat-conducting material.

[0170] An optical layer (30) positioned between the display panel (10) and the plurality of light sources (51); and a supporter (39) supporting the optical layer (30) between the optical layer (30) and the substrate (40); further comprising: the curved portion (84) has a connecting portion (85) into which the supporter (39) is inserted and fixed; the supporter (39) is elongated, is positioned between the first plates (412, 422), and can be detachably connected to the connecting portion (85) in the longitudinal direction of the supporter (39).

[0171] The supporter (39) includes a base (391a) extending in the longitudinal direction of the supporter; and a plurality of legs (393) protruding from the base toward the first plate (412, 422) of the substrate (40); and the connecting portion (85) includes a plurality of insertion holes (851) in which a portion of the bending portion (84) is cut out in the longitudinal direction of the bending portion (84) and extended long, into which each of the plurality of legs (393) is inserted; and a catch groove (852) formed on one side of each of the plurality of insertion holes (851); and the catch groove (852) may be positioned on a portion of the front surface of each of the plurality of legs (393).

[0172] The length (Ld) of the portion forming the boundary of the catch groove (852) of the heat sink (83) may be equal to or greater than the length (Lb) of the legs (393).

[0173] The above supporter (39) includes a fixing projection (394c) protruding toward the heat sink (83), and the connecting portion (85) may further include a fixing hole (853) disposed between the plurality of insertion holes (851) and into which the fixing projection (394c) is inserted.

[0174] The plurality of insertion holes (851) include a first insertion hole (851a) spaced apart from the fixing hole (853) in the longitudinal direction of the curved portion (84); and a second insertion hole (851b) facing the first insertion hole (851a) with respect to the fixing hole (853); and the plurality of legs (393) include a first leg (393a) protruding from one end of the base in a direction intersecting the longitudinal direction of the supporter and inserted into the first insertion hole (851a); and a second leg (393b) protruding from the other end of the base in a direction intersecting the longitudinal direction of the supporter and inserted into the second insertion hole (851b); and a gap between the fixing hole (853) and the first insertion hole (851a) may be greater than a gap between the fixing protrusion (394c) and the first leg (393a).

[0175] The supporter (39) further includes an elastic member (391b, 391c, 391d) having one end and the other end fixed to the front surface of the base (391a) and forming an arc between the one end and the other end in a direction from the base toward the optical layer (30); and a tip (392) extending from the elastic member toward the optical layer (30), and the front end of the tip (392) can support the rear surface of the optical layer (30).

[0176] A display device (1) according to one aspect of the present disclosure comprises: a display panel (10); a frame (80) positioned at the rear of the display panel; and a substrate (40) positioned between the display panel and the frame and coupled to the frame; wherein the substrate (40) includes a plurality of first plates (412, 422) that are elongated and spaced apart from each other, and the frame (80) may include a curved portion (84) that protrudes forward toward the display panel (10) and is positioned between neighboring first plates among the plurality of first plates (412, 422).

[0177]

[0178] Any or all of the embodiments of the present disclosure described above are not mutually exclusive or distinct. Any or all of the embodiments of the present disclosure described above may have their respective components or functions combined or used together.

[0179] For example, it means that a configuration A described in a particular embodiment and / or drawing can be combined with a configuration B described in another embodiment and / or drawing. That is, even if a combination between configurations is not directly described, it means that a combination is possible, except in cases where a combination is described as impossible.

[0180] The above detailed description should not be construed as limiting in any respect and should be considered illustrative only. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are intended to be included within the scope of the present invention.

Claims

1. Display panel; A frame positioned at the rear of the above display panel; a substrate positioned between the display panel and the frame and coupled to the frame; and A heat sink positioned between the substrate and the frame and coupled to the substrate and the frame, The above substrate is, comprising a plurality of first plates that are elongated and spaced apart from each other; The above heat sink, A display device comprising a curved portion protruding forward toward the display panel and positioned between adjacent first plates among the plurality of first plates.

2. In paragraph 1, A plurality of light sources positioned on the substrate and spaced apart from each other; and Further comprising a reflective sheet positioned on the substrate, covering between the plurality of first plates and the plurality of first plates, and including a hole through which the light sources pass; The above bend is, A display device that supports the reflective sheet by contacting at least a portion of the rear surface of the reflective sheet.

3. In paragraph 1, The above substrate is, It further includes a second plate that extends in a direction intersecting the longitudinal direction of the first plates and is connected to one end of the first plates, The above bend is, A display device extending in the longitudinal direction of the first plates from the other end of the first plates to the second plate.

4. In paragraph 3, The height at which the above-mentioned bent portion protrudes forward is equal to or less than the thickness of the above-mentioned substrate, A display device in which the width of the curved portion defined in the longitudinal direction of the second plate is equal to or smaller than the gap between adjacent first plates among the first plates.

5. In paragraph 3, One end of the above-mentioned bent portion supports the second plate, The above heat sink, Further comprising a hole positioned adjacent to one end of the above-mentioned bend portion and extending in the width direction of the above-mentioned bend portion, A display device in which the length of the above hole is greater than or equal to the width of the above bend.

6. In paragraph 3, The above bend is, At least one support rib protruding forward and extending in the longitudinal direction of the first plates; and A display device comprising a guide rib that protrudes forward, is positioned at both ends or one end of the longitudinal direction of the support rib, and extends in a direction intersecting the longitudinal direction of the first plates.

7. In paragraph 3, The above first plates, At least one first bending portion convexly protruding in a first direction intersecting the longitudinal direction of the first plates; and At least one second bending portion extending from the first bending portion and protruding in a direction opposite to the first direction; The first bending portion and the second bending portion are alternately arranged along the longitudinal direction of the first plates, The above bend is, A display device having a shape corresponding to a shape in which the first bending portion and the second bending portion protrude between adjacent first plates.

8. In paragraph 1, The above heat sink, A display device comprising a thermally conductive material.

9. In paragraph 2, An optical layer positioned between the display panel and the plurality of light sources; and, Further comprising a supporter supporting the optical layer between the optical layer and the substrate; The above bend is, It has a joint part into which the above supporter is inserted and fixed, The above supporters, A display device which is elongated, positioned between the first plates, and detachably connected to the connecting portion in the longitudinal direction of the supporter.

10. In paragraph 9, The above supporters, a base extending in the longitudinal direction of the above supporter; and comprising a plurality of legs protruding from the base toward the first plate of the substrate; The above joint is, A portion of the bent portion is cut and extended in the longitudinal direction of the bent portion, and a plurality of insertion holes into which each of the plurality of legs is inserted; and Including a catch groove formed on one side of each of the plurality of insertion holes; The above-mentioned hanging groove is, A display device positioned on a portion of the front surface of each of the above plurality of legs.

11. In paragraph 10, A display device wherein the length of the portion forming the boundary of the above-mentioned hanging groove of the above-mentioned heat sink is equal to or greater than the length of the above-mentioned legs.

12. In paragraph 10, The above supporters, Including a fixing projection protruding from the above base toward the above heat sink; The above joint is, A display device further comprising a fixing hole disposed between the plurality of insertion holes and into which the fixing projection is inserted.

13. In paragraph 12, The above multiple insertion holes are, A first insertion hole spaced apart from the fixing hole in the longitudinal direction of the bent portion; and Including a second insertion hole opposite the first insertion hole for the above fixing hole; The above multiple legs, A first leg protruding from one end of the base in a direction intersecting the longitudinal direction of the supporter and inserted into the first insertion hole; and A second leg is included, which protrudes in a direction intersecting the longitudinal direction of the supporter from the other end of the base and is inserted into the second insertion hole; The gap between the above fixing hole and the first insertion hole is A display device having a gap greater than the gap between the above-mentioned fixed projection and the above-mentioned first leg.

14. In paragraph 10, The above supporters, An elastic member having one end and the other end fixed to the front surface of the base and forming an arc between the one end and the other end in a direction from the base toward the optical layer; and Further comprising a tip extending toward the optical layer on the elastic member; A display device in which the front end of the tip supports the rear surface of the optical layer.

15. Display panel; a frame positioned at the rear of the above display panel; and A substrate positioned between the display panel and the frame and coupled to the frame; The above substrate is, comprising a plurality of first plates that are elongated and spaced apart from each other; The above frame is, A display device comprising a curved portion protruding forward toward the display panel and positioned between adjacent first plates among the plurality of first plates.

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