Display device

Abstract

A display device is disclosed. The display device of the present disclosure may comprise: a display panel including a first edge which is elongated and a second edge which is connected to the first edge and elongated in a direction crossing the first edge; a frame disposed at the rear of the display panel; a substrate positioned between the display panel and the frame and coupled to the frame; and a plurality of light sources positioned on the substrate to provide light toward the display panel, wherein: the substrate includes an inner area opposite to the display panel, and an outer area positioned between the inner area and the first edge of the display panel or between the inner area and the second edge of the display panel and adjoining the inner area; and the plurality of light sources include a plurality of first light sources disposed in the inner area and arranged in a first direction, and a plurality of second light sources disposed in the outer area and arranged in a second direction different from the first direction.

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 that face each other with a liquid crystal side and a liquid crystal layer therebetween, 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 actively being conducted on the structure of the substrate on which light sources such as LEDs are mounted and the arrangement structure of the light sources placed on the substrate.

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

[0006] Another purpose may be to provide a display device in which light emitted from a plurality of adjacent light sources overlaps uniformly.

[0007] Another object may be to provide a display device that minimizes differences in light coverage area by multiple adjacent light sources depending on the backlight area.

[0008] Another purpose may be to provide a display device that improves the uniformity of light emitted from the backlight.

[0009] Another purpose may be to provide a display device that improves light performance degradation in the side areas of the backlight unit.

[0010] According to one aspect of the present disclosure for achieving the above or other purposes, a display device includes: a display panel including a first edge extending long and a second edge connected to the first edge and extending long in a direction intersecting the first edge; 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 plurality of light sources positioned on the substrate and providing light toward the display panel, wherein the substrate includes an inner region facing the display panel; and an outer region positioned between the inner region and the first edge of the display panel or the inner region and the second edge of the display panel and adjacent to the inner region, wherein the plurality of light sources may include: a plurality of first light sources arranged in the inner region and aligned in a first direction; and a plurality of second light sources arranged in the outer region and aligned in a second direction different from the first direction.

[0011] The effects of the display device according to the present disclosure are described as follows.

[0012] According to at least one of the embodiments of the present disclosure, a display device can be provided in which light emitted from a plurality of adjacent light sources uniformly overlaps.

[0013] According to at least one of the embodiments of the present disclosure, a display device can be provided that minimizes differences in light coverage areas by a plurality of adjacent light sources depending on the backlight portion.

[0014] According to at least one of the embodiments of the present disclosure, a display device can be provided that increases the uniformity of light emitted from a backlight.

[0015] According to at least one of the embodiments of the present disclosure, a display device can be provided that improves light performance degradation in a side area of ​​a backlight unit.

[0016] 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.

[0017] Figures 1 to 22 are drawings illustrating examples of display devices according to embodiments of the present disclosure.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0024] 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.

[0025]

[0026] Referring to FIG. 1, a display device (1) may include a display panel (10). The display panel (10) may display a screen.

[0027] 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).

[0028] The direction parallel to the long sides (LS1, LS2) of the display device (1) may be referred to as the left-right 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 (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 (DR3).

[0029] 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).

[0030] 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.

[0031] 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).

[0032]

[0033] 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).

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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).

[0039] 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).

[0040] 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).

[0041] 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).

[0042] 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).

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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).

[0047] 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.

[0048] 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.

[0049]

[0050] 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 surface of the heat sink (83) may be flat.

[0051] The side portion (70) may be disposed at the edge of the frame (80) or the heat sink (83). The side portion (70) may be disposed along the edge of the display panel (10). 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).

[0052] 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 first side portion (71) may extend along the upper side of the heat sink (83). The second side portion (72) may extend along the lower side of the heat sink (83). The third side portion (73) may extend along the left side of the heat sink (83). The fourth side portion (74) may extend along the right side of the heat sink (83). The side portion (70) may be referred to as a chamfer portion.

[0053]

[0054] 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).

[0055] The substrate (40) may have an overall rectangular shape.

[0056] For example, 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. 14). 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. 13). The straps may be spaced apart from each other in the vertical direction.

[0057] For example, the substrate (40) may have a square plate shape (see FIG. 15).

[0058] In this specification, the substrates (41, 42, 43) are distinguished by their drawing symbols according to the presence or absence of straps and / or the shape of the straps, but the substrates (41, 42, 43) are all embodiments of the substrate (40) and include the characteristics of the substrate (40) described in this specification.

[0059] The substrate (41, 42) 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.

[0060] 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).

[0061] 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).

[0062] The reflective sheet (60) can cover the front of the substrate (40) and can be bonded to the substrate (40). For example, the reflective sheet (60) can cover the second plates (411, 421), the plurality of first plates (412, 422) of the substrates (41, 42), and the space between the plurality of first plates (412, 422). For example, the reflective sheet (60) can cover the substrate (43) having a rectangular plate shape. The lenses (53, see FIG. 2) can be positioned in the holes (611) of the reflective sheet (60).

[0063] 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).

[0064] 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).

[0065]

[0066] Referring to FIG. 6, the first part (21) of the side frame (20) may extend along the upper side of the display panel (10) and cover the upper side of the display panel (10) and the frame (80). The first part (21) may include a first vertical portion (21V) and a first horizontal portion (21H).

[0067] The first groove (21g) can be formed toward the inside of the first vertical portion (21V) from the rear of the first vertical portion (21V), and the upper end (80aa) of the frame (80) can be inserted.

[0068] The first front pad (FP1) may be positioned between the display panel (10) and the first horizontal portion (21H), and may be coupled to the front surface of the first horizontal portion (21H). The first rear pad (RP1) may be positioned between the first horizontal portion (21H) and the optical sheet (32), and may be coupled to the rear surface of the first horizontal portion (21H).

[0069] The frame (80) may include a press portion (811), a bending portion (812), and a first support portion (813a). The press portion (811) may be formed by pressing from the front to the rear of the frame (80) and may be spaced rearward from the heat sink (83). The bending portion (812) may be bent from the press portion (811) toward the display panel (10). The first support portion (813a) may be bent from the bending portion (812) toward the first vertical portion (21V). The coupling portion (211) may protrude from the first horizontal portion (21H) toward the first support portion (813a) and may be coupled to the first support portion (813a) through a fastening member such as a screw.

[0070] The first side portion (71) may extend along the upper side of the heat sink (83) and may be arranged to be inclined toward the display panel (10). The first side portion (71) may form an obtuse angle with respect to the heat sink (83). The length of the first side portion (71) may be defined in the left-right direction, the width (Wb1) of the first side portion (71) may be defined in the direction forming the obtuse angle with respect to the heat sink (83), and the thickness of the first side portion (71) may be defined in the direction orthogonal to the length direction and width direction of the first side portion (71).

[0071] The first side portion (71) may include a first fixing portion (711) and a first catch portion (712). The first fixing portion (711) may be bent upward from the front end of the first side portion (71) and may be positioned between the first horizontal portion (21H) and the first support portion (813a). A portion of the diffuser plate (31) may be positioned between the first horizontal portion (21H) and the first fixing portion (711) and may press the first fixing portion (711) toward the first support portion (813a).

[0072] The first catch (712) can be bent downward from the rear end of the first side portion (71) and can be located between the heat sink (83) and the press portion (811). The first catch (712) can be caught on the rear side of the heat sink (83).

[0073]

[0074] Referring to Fig. 7, the second part (22) of the side frame (20) may extend along the lower side of the frame (80) and cover the lower side of the frame (80). The second part (22) may be positioned between the lower side of the frame (80) and the under cover (29). The second part (22) may include a second vertical portion (22V) and a second horizontal portion (22H).

[0075] The lower end (80bb) of the frame (80) can be positioned on the second vertical portion (22V).

[0076] The second front pad (FP2) may be positioned between the display panel (10) and the second horizontal portion (22H), and may be coupled to the front surface of the second horizontal portion (22H). The second rear pad (RP2) may be positioned between the second horizontal portion (22H) and the optical sheet (32), and may be coupled to the rear surface of the second horizontal portion (22H).

[0077] The frame (80) may include a press portion (811), a bending portion (812), and a second support portion (813b). The press portion (811) may be formed by pressing from the front to the rear of the frame (80) and may be spaced rearward from the heat sink (83). The bending portion (812) may be bent from the press portion (811) toward the display panel (10). The second support portion (813b) may be bent from the bending portion (812) toward the second vertical portion (22V).

[0078] The second side portion (72) may extend along the lower side of the heat sink (83) and may be arranged to be inclined toward the display panel (10). The second side portion (82) may form an obtuse angle with respect to the heat sink (83). The length of the second side portion (72) may be defined in the left-right direction, the width (Wb2) of the second side portion (72) may be defined in the direction forming the obtuse angle with respect to the heat sink (83), and the thickness of the second side portion (72) may be defined in the direction orthogonal to the length direction and width direction of the second side portion (72).

[0079] The second side portion (72) may include a second fixing portion (721) and a second catch portion (722). The second fixing portion (721) may be bent downward from the front end of the second side portion (72) and may be positioned between the second horizontal portion (22H) and the second support portion (813b). A portion of the diffuser plate (31) may be positioned between the second horizontal portion (22H) and the second fixing portion (721) and may press the second fixing portion (721) toward the second support portion (813b).

[0080] The second catch (722) can be bent upward from the rear end of the second side portion (72) and can be located between the heat sink (83) and the press portion (811). The second catch (722) can be caught on the rear side of the heat sink (83).

[0081]

[0082] Referring to FIG. 8, the third part (23) of the side frame (20) may extend along the left side of the display panel (10) and cover the left side of the display panel (10) and the frame (80). The third part (23) may include a third vertical portion (23V) and a third horizontal portion (23H).

[0083] The third front pad (FP3) may be positioned between the display panel (10) and the third horizontal portion (23H), and may be coupled to the front surface of the third horizontal portion (23H). The third rear pad (RP3) may be positioned between the display panel (10) and the optical sheet (32), and may be coupled to the rear surface of the third horizontal portion (23H).

[0084] The frame (80) may include a press portion (811), a bending portion (812), and a third support portion (813c). The press portion (811) may be formed by pressing from the front to the rear of the frame (80) and may be spaced rearward from the heat sink (83). The bending portion (812) may be bent from the press portion (811) toward the display panel (10). The third support portion (813c) may be bent from the bending portion (812) toward the third vertical portion (23V).

[0085] The third side portion (73) may extend along the left side of the heat sink (83) and may be arranged to be inclined toward the display panel (10). The third side portion (73) may form an obtuse angle with respect to the heat sink (83). The length of the third side portion (73) may be defined in the vertical direction, the width (Wb3) of the third side portion (73) may be defined in the direction forming the obtuse angle with respect to the heat sink (83), and the thickness of the third side portion (73) may be defined in the direction orthogonal to the longitudinal direction and the width direction of the third side portion (73).

[0086] The third side portion (73) may include a third fixing portion (731) and a third catch portion (732). The third fixing portion (731) may be bent to the left at the front end of the third side portion (73) and may be positioned between the third horizontal portion (23H) and the third support portion (813c). A portion of the diffuser plate (31) may be positioned between the third horizontal portion (23H) and the third fixing portion (731) and may press the third fixing portion (731) toward the third support portion (813c).

[0087] The third catch (732) can be bent to the right at the rear end of the third side (73) and can be located between the heat sink (83) and the press part (811). The third catch (732) can be caught on the rear side of the heat sink (83).

[0088]

[0089] Referring to FIG. 9, the fourth part (24) of the side frame (20) may extend along the right side of the display panel (10) and cover the right side of the display panel (10) and the frame (80). The fourth part (24) may include a fourth vertical portion (24V) and a fourth horizontal portion (24H).

[0090] The fourth front pad (FP4) may be positioned between the display panel (10) and the fourth horizontal portion (24H), and may be coupled to the front surface of the fourth horizontal portion (24H). The fourth rear pad (RP4) may be positioned between the display panel (10) and the optical sheet (32), and may be coupled to the rear surface of the fourth horizontal portion (24H).

[0091] The frame (80) may include a press portion (811), a bending portion (812), and a fourth support portion (813d). The press portion (811) may be formed by pressing from the front to the rear of the frame (80) and may be spaced rearward from the heat sink (83). The bending portion (812) may be bent from the press portion (811) toward the display panel (10). The fourth support portion (813d) may be bent from the bending portion (812) toward the fourth vertical portion (24V).

[0092] The fourth side portion (74) may extend along the right side of the heat sink (83) and may be arranged to be inclined toward the display panel (10). The fourth side portion (74) may form an obtuse angle with respect to the heat sink (83). The length of the fourth side portion (74) may be defined in the vertical direction, the width (Wb4) of the fourth side portion (74) may be defined in the direction forming the obtuse angle with respect to the heat sink (83), and the thickness of the fourth side portion (73) may be defined in the direction orthogonal to the longitudinal direction and the width direction of the fourth side portion (73).

[0093] The fourth side portion (74) may include a fourth fixing portion (741) and a fourth catch portion (742). The fourth fixing portion (741) may be bent to the right at the front end of the fourth side portion (74) and may be positioned between the fourth horizontal portion (24H) and the fourth support portion (813d). A portion of the diffuser plate (31) may be positioned between the fourth horizontal portion (24H) and the fourth fixing portion (741) and may press the fourth fixing portion (741) toward the fourth support portion (813d).

[0094] The fourth catch (742) can be bent to the left at the rear end of the fourth side (74) and can be located between the heat sink (83) and the press part (811). The fourth catch (742) can be caught on the rear side of the heat sink (83).

[0095]

[0096] Referring to Fig. 10, the light source (51) may have a hexahedral shape. The light source (51) may include an upper surface (513) facing upward, a lower surface (not shown) facing downward and mounted on a substrate (40), a first side surface (511) connected to the upper surface (513) and the lower surface and extending in one direction, and a second side surface (512) extending in a direction intersecting the longitudinal direction of the first side surface (511) and having a shorter length than the first side surface (511). The area of ​​the first side surface (511) may be larger than the area of ​​the second side surface (512). The lens (53) may cover the light source (51).

[0097] The light source (51) can emit light. The light source (51) can emit light through the upper surface (513), the first side surface (511), and the second side surface (512). Here, the direction in which the light source (51) faces can be defined as the direction in which the first side surface (511) faces. The direction in which the light source (51) faces can be defined as the longitudinal direction of the second side surface (512). Alternatively, the direction in which the light source (51) is aligned can be defined as the direction in which the first side surface (511) faces. The direction in which the light source (51) is aligned can be defined as the longitudinal direction of the second side surface (512). The amount of light emitted from the light source (51) in the longitudinal direction of the second side surface (512) through the first side surface (511) can be greater than the amount of light emitted in the longitudinal direction of the first side surface (511) through the second side surface (512). That is, on a virtual horizontal plane (XY plane), the amount of light emitted in the direction in which the light source (51) is facing may be greater than the amount of light emitted in the direction intersecting the direction in which the light source (51) is facing.

[0098]

[0099] FIG. 11 and FIG. 12 are drawings for explaining the light coverage area according to the arrangement of light sources. Referring to FIG. 11 and FIG. 12, a plurality of light sources (51) may be arranged spaced apart from each other on a substrate (40). The plurality of light sources (51) may be adhered or bonded on the substrate (40). The plurality of light sources (51) may be arranged 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. Each of the plurality of lenses (53) may cover each of the plurality of light sources (51).

[0100] A plurality of light sources (51) may be arranged to face one direction. For example, the plurality of light sources (51) may be aligned to face a first direction or a second direction intersecting the first direction. The direction in which the plurality of first light sources (51a) arranged in the inner region (Ar5, see FIG. 13) of the substrate (40) among the plurality of light sources (51) are aligned may be defined as the first direction. The first direction may be the left-right direction or the up-down direction. The direction in which the remaining second light sources (51b) excluding the first light source (51a) among the plurality of light sources (51) are aligned may be defined as the second direction. The second direction may be the up-down direction or the left-right direction.

[0101] Among the plurality of light sources (51), the distance between adjacent light sources in the left-right direction or in the longitudinal direction of the first edge (LS1, LS2) of the display panel (10) may be defined as a first pitch (P1). Among the plurality of light sources (51), the distance between adjacent light sources in the up-down direction or in the longitudinal direction of the second edge (SS1, SS2) of the display panel (10) may be defined as a second pitch (P2). Here, the fact that the light sources are adjacent may mean that two light sources are located at the closest distance in a direction based on one direction.

[0102] Figure 11 illustrates a state in which multiple light sources (51) are arranged spaced apart from each other so that the second pitch (P2) in the vertical direction is greater than the first pitch (P1) in the left-right direction.

[0103] A plurality of light sources (51) may be arranged to face left and right (left side of Fig. 11) or to face up and down (right side of Fig. 11). A plurality of light sources (51) may be aligned left and right (left side of Fig. 11) or to face up and down (right side of Fig. 11).

[0104] When multiple light sources (51) are arranged to face left and right (left side of FIG. 11), the light emitted from each light source (51) can reach a longer distance in the left and right direction than in the up and down direction. Here, the distance that the light reaches may mean the distance to a part having a brightness of a certain level or more (e.g., 10%) compared to the brightness of the light at the center of the light source (51). Accordingly, when the light sources (51) are arranged further apart in the up and down direction than in the left and right direction, the light is emitted further in the left and right direction than in the up and down direction, so that a sufficient amount of light may not reach some areas (DA, dark area) in the up and down direction. In other words, the light coverage area by multiple adjacent light sources may be different for each backlight area.

[0105] Meanwhile, when multiple light sources (51) are arranged to face vertically (right side of FIG. 11), light emitted from each light source (51) can reach a longer distance in the vertical direction than in the left-right direction. Accordingly, when the light sources (51) are arranged further apart in the vertical direction than in the left-right direction, light is emitted further in the vertical direction than in the left-right direction, so that light can reach or spread relatively evenly between adjacent light sources (51). In other words, the difference in the light coverage area by the multiple adjacent light sources depending on the backlight portion can be minimized.

[0106] Figure 12 illustrates a state in which multiple light sources (51) are arranged spaced apart from each other so that the first pitch (P1) in the left-right direction is greater than the second pitch (P2) in the up-down direction.

[0107] Multiple light sources (51) can be arranged to face left and right (left side of Fig. 12) or to face up and down (right side of Fig. 12).

[0108] When multiple light sources (51) are arranged to face left and right (left side of FIG. 12), light emitted from each light source (51) can reach further in the left and right direction than in the up and down direction. Accordingly, when the light sources (51) are arranged further left and right than in the up and down direction, light is emitted further left and right than in the up and down direction, so that light can reach or spread relatively evenly between adjacent light sources (51). In other words, the difference in light coverage area by multiple adjacent light sources depending on the backlight portion can be minimized.

[0109] Meanwhile, when multiple light sources (51) are arranged to face vertically (right side of FIG. 12), the light emitted from each light source (51) can reach further in the vertical direction than in the left-right direction. Accordingly, when the light sources (51) are arranged further left-right than up-down, the light is emitted further up-down than left-right, so that a sufficient amount of light may not reach some areas (DA) in the left-right direction. In other words, the light coverage area by multiple adjacent light sources may differ depending on the backlight area.

[0110]

[0111] Fig. 13 illustrates a substrate according to one embodiment of the present disclosure. Referring to Fig. 13, a first substrate (42a) may include a plurality of first plates (422) and a second plate (421). The first substrate (42a) may have an overall fork-type shape. The plurality of first plates (422) may extend in one direction, but may have a shape that is bent in a zigzag shape in a direction intersecting the longitudinal direction.

[0112] The second plate (421) may be elongated. For example, the longitudinal direction of the second plate (421) may be parallel to the vertical direction or may intersect the longitudinal direction of the first plates (422). A connector (not shown) may be mounted on one surface of the second plate (421). The plurality of first plates (422) may be elongated 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).

[0113] The first-first plate (422a), the first-second plate (422b), the first-third plate (422c), and the first-fourth plate (422d) can be arranged sequentially in the vertical direction or in the longitudinal direction of the second plate (421). However, the number of the first plates (422) is not limited thereto.

[0114] A plurality of first plates (422) may have a shape that extends in one direction but is bent in a zigzag shape in a direction intersecting the one 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 be convexly protruded or bent in a direction intersecting the longitudinal direction of the first plates (422). For example, the upper surface of the first bending portion (4221) may be convexly protruded or bent in the upward direction, and the lower surface of the first bending portion (4221) may be concavely indented in the upward direction. The second bending portion (4222) may extend from the first bending portion (4221) and may be convexly protruded or bent in a direction opposite to the first bending portion (4221). For example, the lower surface of the second bending portion (4222) may be convexly protruded or curved in a downward direction, and the upper surface of the second bending portion (4222) may be concavely indented in a 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).

[0115] The first substrate (42a) can be divided into an outer region (Ar1, Ar2, Ar3, Ar4) and an inner region (Ar5). The inner region (Ar5) can face the display panel (10). The outer regions (Ar1, Ar2, Ar3, Ar4) can be located between the inner region (Ar5) and the first edge (LS1, LS2) of the display panel (10). Alternatively, the outer regions (Ar1, Ar2, Ar3, Ar4) can be located between the inner region (Ar5) and the second edge (SS1, SS2) of the display panel (10). The outer regions (Ar1, Ar2, Ar3, Ar4) can be adjacent to the inner region (Ar5).

[0116] The first substrate (42a) can be divided into a 1-1 outer region (Ar1) extending along the longitudinal direction of the first substrate (42a) from the upper side of the substrate, a 1-2 outer region (Ar2) extending along the longitudinal direction of the first substrate (42a) from the lower side of the substrate, a 2-1 outer region (Ar3) extending along the width direction of the first substrate (42a) from the left side of the substrate, a 2-2 outer region (Ar4) extending along the width direction of the first substrate (42a) from the right side of the substrate, and an inner region (Ar5) surrounded by the outer regions (Ar1, Ar2, Ar3, Ar4) and located inside the outer regions. The outer region can be referred to as a side region or an edge region. The first-first outer region (Ar1) and the first-second outer region (Ar2) are positioned between the inner region (Ar5) and the first edge (LS1, LS2) of the display panel (10), and may extend in the longitudinal direction of the first edge (LS1, LS2). The first-first outer region (Ar1) and the first-second outer region (Ar2) may be referred to as upper and lower outer regions or long-side outer regions. The second-first outer region (Ar3) and the second-second outer region (Ar4) are positioned between the inner region (Ar5) and the second edge (SS1, SS2) of the display panel (10), and may extend in the longitudinal direction of the second edge (SS1, SS2). The second-first outer region (Ar3) and the second-second outer region (Ar4) may be referred to as left and right outer regions or short-side outer regions.

[0117] 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.

[0118] On the first substrate (42a), a plurality of light sources (51) may be arranged such that a first pitch (P1) in the longitudinal direction or left-right direction of the first edge (LS1, LS2) is greater than a second pitch (P2) in the longitudinal direction or up-down direction of the second edge (SS1, SS2). That is, among the plurality of light sources (51), a distance between light sources adjacent to each other in the left-right direction may be greater than a distance between light sources adjacent to each other in the up-down direction.

[0119] Some of the plurality of light sources (51) may be arranged to face in a different direction from the remaining light sources. For example, some of the plurality of light sources (51) may be arranged to face in a first direction, and the remaining light sources may be arranged to face in a second direction. The first light source (51a) may be arranged to face in a left-right direction or in a longitudinal direction of the first edge (LS1, LS2), and the second light source (51b) may be arranged to face in a vertical direction or in a longitudinal direction of the second edge (SS1, SS2). In the first substrate (42a), the number of the first light sources (51a) may be greater than the number of the second light sources (51b).

[0120] The second light source (51b) may be arranged in the 1-1 outer region (Ar1) and the 1-2 outer region (Ar2). The second light source (51b) may be arranged to be spaced apart from each other along the longitudinal direction of the 1-1 outer region (Ar1) and the 1-2 outer region (Ar2). The first light source (51a) may be arranged in an area other than the area in which the second light source (51b) is arranged. That is, the first light source (51a) may be arranged in an area excluding a corner portion overlapping with the 1-1 outer region (Ar1) and the 1-2 outer region (Ar2) among the inner region (Ar5), the 2-1 outer region (Ar3), and the 2-2 outer region (Ar4).

[0121] The second light source (51b) may be arranged on some of the first plates among the plurality of first plates (422). For example, the second light source (51b) may be arranged on a plate (422a) that is arranged closest to the upper side of the first substrate (42a) among the plurality of first plates (422), and may be arranged on a plate (422d) that is arranged closest to the lower side of the first substrate (42a) among the plurality of first plates (422). The second light source (51b) may be arranged on a first bending portion (4221) that is convexly bent upward on the plate (422a) that is arranged closest to the upper side of the first substrate (42a). The second light source (51b) can be placed on a second bending portion (4222) that is bent convexly downward on a plate (422d) placed closest to the lower side of the first substrate (42a).

[0122] A plurality of light sources (51) are arranged so that the first pitch (P1) is greater than the second pitch (P2), and a greater number of the first light sources (51a) among the light sources (51) are arranged so that they face the left-right direction or the longitudinal direction of the first edge (LS1, LS2), so that light can reach or spread relatively uniformly between adjacent light sources (51). In other words, the difference in the light coverage area by the plurality of adjacent light sources depending on the backlight portion can be minimized, and the uniformity of the light emitted from the backlight can be increased.

[0123] In addition, second light sources (51b) are arranged in the 1-1 outer region (Ar1) and the 1-2 outer region (Ar2) adjacent to the upper edge and lower edge of the first substrate (42a) so as to face the up-and-down direction or the longitudinal direction of the second edges (SS1, SS2), and first light sources (51a) are arranged in the 2-1 outer region (Ar3) and the 2-2 outer region (Ar4) adjacent to the left edge and right edge of the first substrate (42a) so as to face the left-right direction or the longitudinal direction of the first edges (LS1, LS2), so that light can be widely spread from each edge of the first substrate (42a) toward the outside of the first substrate (42a). That is, light generated from a substrate arranged at an edge or corner of the backlight unit can be widely spread from the edge or corner of the backlight unit toward the outside, thereby improving the degradation of light performance in side regions such as the edge or corner of the backlight unit.

[0124] 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.

[0125]

[0126] FIG. 14 illustrates a substrate according to one embodiment of the present disclosure. Referring to FIG. 14, a 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. 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. Features of the first substrate (41a) that overlap with those described above with reference to FIG. 13 will not be described in detail.

[0127] The second plate (411) may be elongated in a direction 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 (421) 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 length of each of the plurality of first plates (412) may be greater than the length of the second plate (411). The width of each of the plurality of first plates (412) may be less than the width of the second plate (411). The longitudinal direction of the plurality of first plates (412) may be referred to as the longitudinal direction of the first substrate (41a).

[0128] The first-first plate (412a), the first-second plate (412b), the first-third plate (412c), the first-fourth plate (412d), the first-fifth plate (412e), and the first-sixth plate (412f) can be arranged sequentially in the vertical direction. However, the number of the first plates (412) is not limited thereto.

[0129] A plurality of light sources (51) can be mounted on the second plate (411) and the plurality of first plates (412) and can be spaced apart from each other. The plurality of light sources (51) can be positioned on the second plate (411) and the plurality of first plates (412) in rows and columns.

[0130] On the first substrate (41a), a plurality of light sources (51) may be arranged such that the first pitch (P1) is greater than the second pitch (P2). That is, among the plurality of light sources (51), the distance between light sources adjacent to each other in the longitudinal direction or left-right direction of the first edge (LS1, LS2) may be greater than the distance between light sources adjacent to each other in the longitudinal direction or up-down direction of the second edge (SS1, SS2).

[0131] Some of the plurality of light sources (51) may be arranged to face in a different direction from the remaining light sources. For example, among the plurality of light sources (51), the first light source (51a) may be arranged to face in a first direction, and the remaining second light sources (51b) may be arranged to face in a second direction. The first light source (51a) may be arranged to face in a left-right direction or in a longitudinal direction of the first edge (LS1, LS2), and the second light source (51b) may be arranged to face in a vertical direction or in a longitudinal direction of the second edge (SS1, SS2). In the first substrate (41a), the number of the first light sources (51a) may be greater than the number of the second light sources (51b).

[0132] The second light source (51b) may be arranged in the 1-1 outer region (Ar1) and the 1-2 outer region (Ar2). The second light source (51b) may be arranged to be spaced apart from each other along the longitudinal direction of the 1-1 outer region (Ar1) and the 1-2 outer region (Ar2). The first light source (51a) may be arranged in an area other than the area in which the second light source (51b) is arranged. That is, the first light source (51a) may be arranged in an area excluding a corner portion overlapping with the 1-1 outer region (Ar1) and the 1-2 outer region (Ar2) among the inner region (Ar5), the 2-1 outer region (Ar3), and the 2-2 outer region (Ar4).

[0133] The second light source (51b) may be placed on some of the first plates among the plurality of first plates (412). For example, the second light source (51b) may be placed on a plate (412a) that is positioned closest to the upper side of the first substrate (41a) among the plurality of first plates (412), and may be placed on a plate (412f) that is positioned closest to the lower side of the first substrate (41a) among the plurality of first plates (422).

[0134] A plurality of light sources (51) are arranged so that the first pitch (P1) is greater than the second pitch (P2), and a greater number of the first light sources (51a) among the light sources (51) are arranged so that they face the left-right direction or the longitudinal direction of the first edge (LS1, LS2), so that light can reach or spread relatively uniformly between adjacent light sources (51). In other words, the difference in the light coverage area by the plurality of adjacent light sources depending on the backlight portion can be minimized, and the uniformity of the light emitted from the backlight can be increased.

[0135] In addition, second light sources (51b) are arranged in the 1-1 outer region (Ar1) and the 1-2 outer region (Ar2) adjacent to the upper edge and lower edge of the first substrate (41a) so as to face the up-and-down direction or the longitudinal direction of the second edges (SS1, SS2), and first light sources (51a) are arranged in the 2-1 outer region (Ar3) and the 2-2 outer region (Ar4) adjacent to the left edge and right edge of the first substrate (41a) so as to face the left-right direction or the longitudinal direction of the first edges (LS1, LS2), so that light can be widely spread from each edge of the first substrate (41a) toward the outside of the first substrate (41a). That is, light generated from a substrate arranged at an edge or corner of the backlight unit can be widely spread from the edge or corner of the backlight unit toward the outside, thereby improving the degradation of light performance in side regions such as the edge or corner of the backlight unit.

[0136] The first substrate (41a) may have substantially the same shape as the remaining substrates. 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) can be reduced.

[0137]

[0138] Fig. 15 illustrates a substrate according to one embodiment of the present disclosure. Referring to Fig. 15, the first substrate (43a) may be a rectangular plate. Features of the first substrate (43a) that overlap with those described previously with reference to Figs. 13 and 14 will not be described in detail.

[0139] The first substrate (43a) may be elongated in a direction parallel to the left and right directions. A connector (not shown) may be mounted on one surface of the first substrate (43a). The length of the first substrate (43a), defined in the left and right directions, may be greater than the width of the first substrate (43a), defined in the vertical direction.

[0140] A plurality of light sources (51) can be mounted on the first substrate (43a) and spaced apart from each other. The plurality of light sources (51) can be positioned on the first substrate (43a) in rows and columns.

[0141] On the first substrate (43a), a plurality of light sources (51) may be arranged such that the first pitch (P1) is greater than the second pitch (P2). That is, among the plurality of light sources (51), the distance between light sources adjacent to each other in the longitudinal direction or left-right direction of the first edge (LS1, LS2) may be greater than the distance between light sources adjacent to each other in the longitudinal direction or up-down direction of the second edge (SS1, SS2).

[0142] Some of the plurality of light sources (51) may be arranged to face in a different direction from the remaining light sources. For example, among the plurality of light sources (51), the first light source (51a) may be arranged to face in a first direction, and the remaining second light sources (51b) may be arranged to face in a second direction. The first light source (51a) may be arranged to face in a left-right direction or in a longitudinal direction of the first edge (LS1, LS2), and the second light source (51b) may be arranged to face in a vertical direction or in a longitudinal direction of the second edge (SS1, SS2). In the first substrate (43a), the number of the first light sources (51a) may be greater than the number of the second light sources (51b).

[0143] The second light source (51b) may be arranged in the 1-1 outer region (Ar1) and the 1-2 outer region (Ar2). The second light source (51b) may be arranged to be spaced apart from each other along the longitudinal direction of the 1-1 outer region (Ar1) and the 1-2 outer region (Ar2). The first light source (51a) may be arranged in an area other than the area in which the second light source (51b) is arranged. That is, the first light source (51a) may be arranged in an area excluding a corner portion overlapping with the 1-1 outer region (Ar1) and the 1-2 outer region (Ar2) among the inner region (Ar5), the 2-1 outer region (Ar3), and the 2-2 outer region (Ar4).

[0144] A plurality of light sources (51) are arranged so that the first pitch (P1) is greater than the second pitch (P2), and a greater number of the first light sources (51a) among the light sources (51) are arranged so that they face the left-right direction or the longitudinal direction of the first edge (LS1, LS2), so that light can reach or spread relatively uniformly between adjacent light sources (51). In other words, the difference in the light coverage area by the plurality of adjacent light sources depending on the backlight portion can be minimized, and the uniformity of the light emitted from the backlight can be increased.

[0145] In addition, second light sources (51b) are arranged in the 1-1 outer region (Ar1) and the 1-2 outer region (Ar2) adjacent to the upper edge and lower edge of the first substrate (41a) so as to face the up-and-down direction or the longitudinal direction of the second edges (SS1, SS2), and first light sources (51a) are arranged in the 2-1 outer region (Ar3) and the 2-2 outer region (Ar4) adjacent to the left edge and right edge of the first substrate (41a) so as to face the left-right direction or the longitudinal direction of the first edges (LS1, LS2), so that light can be widely spread from each edge of the first substrate (41a) toward the outside of the first substrate (41a). That is, light generated from a substrate arranged at an edge or corner of the backlight unit can be widely spread from the edge or corner of the backlight unit toward the outside, thereby improving the degradation of light performance in side regions such as the edge or corner of the backlight unit.

[0146] The first substrate (43a) may have substantially the same shape as the remaining substrates. Accordingly, the manufacturing cost of the substrate (43) can be reduced.

[0147]

[0148] Fig. 16 illustrates a substrate according to one embodiment of the present disclosure. Referring to Fig. 16, the first substrate (42a) may have an overall fork-type shape. The plurality of first plates (422) may extend long in one direction, but may have a shape that is bent in a zigzag shape in a direction intersecting the one direction. Features of the first substrate (42a) that overlap with those described above with reference to Figs. 13 to 15 will not be described in detail.

[0149] 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. 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. On the first substrate (42a), the plurality of light sources (51) may be arranged such that a second pitch (P2) in the longitudinal direction or the vertical direction of the second edges (SS1, SS2) is greater than a first pitch (P1) in the longitudinal direction or the left-right direction of the first edges (LS1, LS2). That is, a separation distance between light sources that are adjacent to each other in the vertical direction among the plurality of light sources (51) may be greater than a separation distance between light sources that are adjacent to each other in the left-right direction. The first light source (51a) may be arranged to face the vertical direction or the longitudinal direction of the second edge (SS1, SS2), and the second light source (51b) may be arranged to face the left-right direction or the longitudinal direction of the first edge (LS1, LS2). In the first substrate (42a), the number of first light sources (51a) may be greater than the number of second light sources (51b).

[0150] The second light source (51b) may be arranged in the 2-1 outer region (Ar3) and the 2-2 outer region (Ar4). The second light source (51b) may be arranged to be spaced apart from each other along the longitudinal direction of the 2-1 outer region (Ar3) and the 2-2 outer region (Ar4). The first light source (51a) may be arranged in an area other than the area in which the second light source (51b) is arranged. That is, the first light source (51a) may be arranged in an area excluding a corner portion overlapping with the 2-1 outer region (Ar3) and the 2-2 outer region (Ar4) among the inner region (Ar5), the 1-1 outer region (Ar1) and the 1-2 outer region (Ar2).

[0151] Some of the second light sources (51b) may be arranged on the second plate (421). For example, some of the second light sources (51b) may be arranged adjacent to the left long side of the second plate (421) along the longitudinal direction of the second plate (421), the longitudinal direction of the second edges (SS1, SS2), or the vertical direction. The remainder of the second light sources (51b) may be arranged on the first plates (422). For example, the remainder of the second light sources (51b) may be arranged adjacent to the right end of the first plates (422) and may be arranged spaced apart from each other along the width direction of the first substrate (42a), the longitudinal direction of the second edges (SS1, SS2), or the vertical direction.

[0152] A plurality of light sources (51) are arranged so that the second pitch (P2) is greater than the first pitch (P1), and a greater number of the first light sources (51a) among the light sources (51) are arranged so that they face the vertical direction or the longitudinal direction of the second edge (SS1, SS2), so that light can reach or spread relatively uniformly between the adjacent light sources (51). In other words, the difference in the light coverage area by the plurality of adjacent light sources depending on the backlight portion can be minimized, and the uniformity of the light emitted from the backlight can be increased.

[0153] In addition, the first light source (51a) is arranged in the 1-1 outer region (Ar1) and the 1-2 outer region (Ar2) adjacent to the upper edge and the lower edge of the first substrate (42a) so as to face the up-and-down direction or the longitudinal direction of the second edge (SS1, SS2), and the second light source (51b) is arranged in the 2-1 outer region (Ar3) and the 2-2 outer region (Ar4) adjacent to the left edge and the right edge of the first substrate (42a) so as to face the left-right direction or the longitudinal direction of the first edge (LS1, LS2), so that light can widely spread from each edge of the first substrate (42a) toward the outside of the first substrate (42a). That is, light generated from a substrate arranged at an edge or corner of the backlight unit can widely spread from the edge or corner of the backlight unit toward the outside, thereby improving the degradation of light performance in side regions such as the edge or corner of the backlight unit.

[0154] 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.

[0155]

[0156] Fig. 17 illustrates a substrate according to one embodiment of the present disclosure. Referring to Fig. 17, a 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. Features of the first substrate (41a) that overlap with those described above with reference to Figs. 13 to 16 will not be described in detail.

[0157] 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. 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. On the first substrate (41a), the plurality of light sources (51) may be arranged such that the second pitch (P2) is greater than the first pitch (P1). That is, the separation distance between the light sources that are adjacent to each other in the vertical direction among the plurality of light sources (51) may be greater than the separation distance between the light sources that are adjacent to each other in the left-right direction. The first light source (51a) may be arranged to face the vertical direction or the longitudinal direction of the second edge (SS1, SS2), and the second light source (51b) may be arranged to face the left-right direction or the longitudinal direction of the first edge (LS1, LS2). In the first substrate (41a), the number of first light sources (51a) may be greater than the number of second light sources (51b).

[0158] The second light source (51b) may be arranged in the 2-1 outer region (Ar3) and the 2-2 outer region (Ar4). The second light source (51b) may be arranged to be spaced apart from each other along the longitudinal direction of the 2-1 outer region (Ar3) and the 2-2 outer region (Ar4). The first light source (51a) may be arranged in an area other than the area in which the second light source (51b) is arranged. That is, the first light source (51a) may be arranged in an area excluding a corner portion overlapping with the 2-1 outer region (Ar3) and the 2-2 outer region (Ar4) among the inner region (Ar5), the 1-1 outer region (Ar1) and the 1-2 outer region (Ar2).

[0159] Some of the second light sources (51b) may be arranged on the second plate (411). For example, some of the second light sources (51b) may be arranged adjacent to the left long side of the second plate (411) along the longitudinal direction of the second plate (411), the longitudinal direction of the second edges (SS1, SS2), or the vertical direction. The remainder of the second light sources (51b) may be arranged on the first plates (412). For example, the remainder of the second light sources (51b) may be arranged adjacent to the right end of the first plates (412) and may be arranged spaced apart from each other along the width direction of the first substrate (41a), the longitudinal direction of the second edges (SS1, SS2), or the vertical direction.

[0160] A plurality of light sources (51) are arranged so that the second pitch (P2) is greater than the first pitch (P1), and a greater number of the first light sources (51a) among the light sources (51) are arranged so that they face the vertical direction or the longitudinal direction of the second edge (SS1, SS2), so that light can reach or spread relatively uniformly between the adjacent light sources (51). In other words, the difference in the light coverage area by the plurality of adjacent light sources depending on the backlight portion can be minimized, and the uniformity of the light emitted from the backlight can be increased.

[0161] In addition, the first light source (51a) is arranged in the 1-1 outer region (Ar1) and the 1-2 outer region (Ar2) adjacent to the upper edge and the lower edge of the first substrate (41a) so as to face the up-and-down direction or the longitudinal direction of the second edge (SS1, SS2), and the second light source (51b) is arranged in the 2-1 outer region (Ar3) and the 2-2 outer region (Ar4) adjacent to the left edge and the right edge of the first substrate (41a) so as to face the left-right direction or the longitudinal direction of the first edge (LS1, LS2), so that light can be widely spread from each edge of the first substrate (41a) toward the outside of the first substrate (41a). That is, light generated from a substrate arranged at an edge or corner of the backlight unit can be widely spread from the edge or corner of the backlight unit toward the outside, thereby improving the degradation of light performance in side regions such as the edge or corner of the backlight unit.

[0162] The first substrate (41a) may have substantially the same shape as the remaining substrates. 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) can be reduced.

[0163]

[0164] Fig. 18 illustrates a substrate according to one embodiment of the present disclosure. Referring to Fig. 18, the first substrate (43a) may be a rectangular plate. Features of the first substrate (43a) that overlap with those described previously with reference to Figs. 13 and 17 will not be described in detail.

[0165] The first substrate (43a) may be elongated in a direction parallel to the left and right directions. A connector (not shown) may be mounted on one surface of the first substrate (43a). The length of the first substrate (43a), defined in the left and right directions, may be greater than the width of the first substrate (43a), defined in the vertical direction.

[0166] A plurality of light sources (51) may be mounted on a first substrate (43a) and may be spaced apart from each other. The plurality of light sources (51) may be positioned on the first substrate (43a) in rows and columns. On the first substrate (43a), the plurality of light sources (51) may be arranged such that a second pitch (P2) is greater than a first pitch (P1). That is, a spacing between light sources that are adjacent to each other in the vertical direction among the plurality of light sources (51) may be greater than a spacing between light sources that are adjacent to each other in the left-right direction. The first light source (51a) may be arranged to face the vertical direction or the longitudinal direction of the second edge (SS1, SS2), and the second light source (51b) may be arranged to face the left-right direction or the longitudinal direction of the first edge (LS1, LS2). In the first substrate (43a), the number of first light sources (51a) may be greater than the number of second light sources (51b).

[0167] The second light source (51b) may be arranged in the 2-1 outer region (Ar3) and the 2-2 outer region (Ar4). The second light source (51b) may be arranged to be spaced apart from each other along the longitudinal direction of the 2-1 outer region (Ar3) and the 2-2 outer region (Ar4). The first light source (51a) may be arranged in an area other than the area in which the second light source (51b) is arranged. That is, the first light source (51a) may be arranged in an area excluding a corner portion overlapping with the 2-1 outer region (Ar3) and the 2-2 outer region (Ar4) among the inner region (Ar5), the 1-1 outer region (Ar1) and the 1-2 outer region (Ar2).

[0168] A plurality of light sources (51) are arranged so that the second pitch (P2) is greater than the first pitch (P1), and a greater number of the first light sources (51a) among the light sources (51) are arranged so that they face the vertical direction or the longitudinal direction of the second edge (SS1, SS2), so that light can reach or spread relatively uniformly between the adjacent light sources (51). In other words, the difference in the light coverage area by the plurality of adjacent light sources depending on the backlight portion can be minimized, and the uniformity of the light emitted from the backlight can be increased.

[0169] In addition, the first light source (51a) is arranged in the 1-1 outer region (Ar1) and the 1-2 outer region (Ar2) adjacent to the upper edge and the lower edge of the first substrate (43a) so as to face the up-and-down direction or the longitudinal direction of the second edge (SS1, SS2), and the second light source (51b) is arranged in the 2-1 outer region (Ar3) and the 2-2 outer region (Ar4) adjacent to the left edge and the right edge of the first substrate (43a) so as to face the left-right direction or the longitudinal direction of the first edge (LS1, LS2), so that light can be widely spread from each edge of the first substrate (43a) toward the outside of the first substrate (43a). That is, light generated from a substrate arranged at an edge or corner of the backlight unit can be widely spread from the edge or corner of the backlight unit toward the outside, thereby improving the degradation of light performance in side regions such as the edge or corner of the backlight unit.

[0170] The first substrate (43a) may have substantially the same shape as the remaining substrates. Accordingly, the manufacturing cost of the substrate (43) can be reduced.

[0171]

[0172] FIG. 19 is a drawing illustrating a substrate arrangement and a light distribution emitted from light sources of a backlight unit according to one embodiment of the present disclosure, and FIG. 20 is a drawing illustrating a substrate arrangement and a light distribution emitted from light sources in which all light sources are arranged in the same direction.

[0173] Referring to FIG. 19, a plurality of substrates (42) may be arranged in a backlight unit. For example, nine substrates (42) may be arranged in rows and columns on a heat sink (83). The first substrate (42a), the second substrate (42b), the third substrate (42c), the fourth substrate (42d), the fifth substrate (42e), the sixth substrate (42f), the seventh substrate (42g), the eighth substrate (42h), and the ninth substrate (42i) may be arranged on an imaginary horizontal plane (i.e., the XY plane).

[0174] Each of the substrates may have the same shape. Among them, the first substrate (42a), the second substrate (42b), the fourth substrate (42d), the fifth substrate (42e), the seventh substrate (42g), and the eighth substrate (42h) may be arranged identically. For example, the six substrates (42a, 42b, 42d, 42e, 42g, 42h) may be arranged so that the second plate (421) is positioned on one side or the left side. The remaining third substrate (42c), the sixth substrate (42f), and the ninth substrate (42i) may be arranged differently from the six substrates (42a, 42b, 42d, 42e, 42g, 42h). For example, the remaining three substrates (42c, 42f, 42i) may be arranged so that the second plate (421) is positioned on the other side or the right side. The plurality of substrates (42) can be arranged so that the other end of each of the first plates (422) is adjacent to the edge of the heat sink (83).

[0175] The side portion (70) may be disposed at the edge of the heat sink (83) or the edge of the frame (80). The side portion (70) may be disposed to be inclined toward the display panel (10) with respect to the heat sink (83), the frame (80), or the substrate (42). For example, the side portion (70) may include a flat surface, and the flat surface of the side portion (70) may be disposed to form an obtuse angle with respect to the heat sink (83), the frame (80), or the substrate (42). The width of the side portion (70) may be defined in the direction in which the flat surface of the side portion (70) forms an obtuse angle with respect to the heat sink (83), the frame (80), or the substrate (42), or in the direction in which the side portion (70) is inclined toward the display panel (10).

[0176] The first side portion (71) may extend along the upper edge of the heat sink (83) or the upper edge of the frame (80). The first side portion (71) may extend in the longitudinal direction of the first edge (LS1, LS2) of the display panel (10). The second side portion (72) may extend along the lower edge of the heat sink (83) or the lower edge of the frame (80). The second side portion (72) may face the first side portion (71) and extend in the longitudinal direction of the first edge (LS1, LS2). The third side portion (73) may extend along the left edge of the heat sink (83) or the left edge of the frame (80). The third side portion (73) may be connected to the first side portion (71) and may extend in the longitudinal direction of the second edge (SS1, SS2) of the display panel (10). The fourth side portion (74) may extend along the right edge of the heat sink (83) or the right edge of the frame (80). The fourth side portion (74) may face the third side portion (73) and extend in the longitudinal direction of the second edges (SS1, SS2). The width (Wb1) of the first side portion (71) and the width (Wb2) of the second side portion (72) may be equal to or greater than the width (Wb3) of the third side portion (73) and the width (Wb4) of the fourth side portion (74).

[0177] Each of the substrates (42) may include a plurality of light sources (51). On each substrate (42), the plurality of light sources (51) may be arranged so that a first pitch (P1) is greater than a second pitch (P2). The first light source (51a) may be arranged to face the left-right direction or the longitudinal direction of the first edge (LS1, LS2), and the second light source (51b) may be arranged to face the up-down direction or the longitudinal direction of the second edge (SS1, SS2). On each substrate (42), the second light source (51b) may be arranged in the first-first outer region (Ar1) and the first-second outer region (Ar2). The second light source (51b) of the three upper substrates (42a, 42b, 42c) arranged adjacent to the first side portion (71) among the plurality of substrates (42) may be adjacent to the first side portion (71). The second light source (51b) of the three lower substrates (42g, 42h, 42i) arranged adjacent to the second side portion (72) among the plurality of substrates (42) may be adjacent to the second side portion (72). On each substrate (42), the first light source (51a) may be arranged in an area remaining except for an area where the second light source (51b) is arranged.

[0178] Referring to FIG. 20 together with FIG. 19, in a structure in which all of the light sources (51) of each substrate (42) are oriented in the left-right direction or in the longitudinal direction of the first edge (LS1, LS2) as illustrated in FIG. 20, light emitted from light sources arranged adjacent to the first side portion (71) and the second side portion (72) on each substrate (42) cannot sufficiently reach the first side portion (71) and the second side portion (72).

[0179] In contrast, as illustrated in FIG. 19, second light sources (51b) are arranged in the first-first outer region (Ar1) and the first-second outer region (Ar2) of each substrate (42) so as to face the vertical direction or the longitudinal direction of the second edge (SS1, SS2), so that light sources are arranged in all positions adjacent to the first side portion (71) and the second side portion (72) on each substrate (42) so as to face the vertical direction or the longitudinal direction of the second edge (SS1, SS2), thereby allowing light to spread widely or reach far toward the first side portion (71) and the second side portion (72). Light emitted toward the first side portion (71) and the second side portion (72) can be reflected by the first side portion (71) and the second side portion (72) and travel toward the display panel (10). That is, light generated from a substrate placed at an edge or corner of a backlight unit can be widely spread from the edge or corner of the backlight unit toward the side, thereby improving the degradation of light performance in side areas such as the edge or corner of the backlight unit.

[0180]

[0181] FIG. 21 is a diagram illustrating the substrate layout and the light distribution emitted from the light sources of a backlight unit according to one embodiment of the present disclosure, and FIG. 22 is a diagram illustrating the substrate layout and the light distribution emitted from the light sources in which all light sources are arranged in the same direction. For features of the substrate layout and the light distribution of the backlight unit that overlap with the features previously described with reference to FIGS. 19 and 20, a detailed description thereof will be omitted.

[0182] Referring to FIG. 21, a plurality of substrates (42) may be arranged in a backlight unit. For example, nine substrates (42) may be arranged in rows and columns on a heat sink (83). The first substrate (42a), the second substrate (42b), the third substrate (42c), the fourth substrate (42d), the fifth substrate (42e), the sixth substrate (42f), the seventh substrate (42g), the eighth substrate (42h), and the ninth substrate (42i) may be arranged on an imaginary horizontal plane (i.e., the XY plane).

[0183] The width (Wb3) of the third side portion (73) and the width (Wb4) of the fourth side portion (74) may be equal to or greater than the width (Wb1) of the first side portion (71) and the width (Wb2) of the second side portion (72).

[0184] Each of the substrates (42) may include a plurality of light sources (51). On each substrate (42), the plurality of light sources (51) may be arranged so that the second pitch (P2) is greater than the first pitch (P1). The first light source (51a) may be arranged to face the vertical direction or the longitudinal direction of the second edge (SS1, SS2), and the second light source (51b) may be arranged to face the left-right direction or the longitudinal direction of the first edge (LS1, LS2). On each substrate (42), the second light source (51b) may be arranged in the 2-1 outer region (Ar3) and the 2-2 outer region (Ar4). The second light source (51b) of the three substrates (42c, 42f, 42i) on the left side, which are arranged adjacent to the third side portion (73) among the plurality of substrates (42), may be adjacent to the third side portion (73). The second light source (51b) of the three substrates (42a, 42d, 42g) on ​​the right side, which are arranged adjacent to the fourth side portion (74) among the plurality of substrates (42), may be adjacent to the fourth side portion (74). On each substrate (42), the first light source (51a) may be arranged in an area remaining except for an area where the second light source (51b) is arranged.

[0185] Referring to FIG. 22 together with FIG. 21, in a structure in which all of the light sources (51) of each substrate (42) face the vertical direction or the longitudinal direction of the second edge (SS1, SS2) as illustrated in FIG. 22, light emitted from light sources arranged adjacent to the third side portion (73) and the fourth side portion (74) on each substrate (42) cannot sufficiently reach the third side portion (73) and the fourth side portion (74).

[0186] In contrast, as illustrated in FIG. 21, second light sources (51b) are arranged in the 2-1 outer region (Ar3) and the 2-2 outer region (Ar4) of each substrate (42) so as to face the left-right direction or the longitudinal direction of the first edge (LS1, LS2), and light sources are arranged in the positions adjacent to the 3rd side portion (73) and the 4th side portion (74) on each substrate (42) so as to face the left-right direction or the longitudinal direction of the 1st edge (LS1, LS2), so that light can widely spread or reach far toward the 3rd side portion (73) and the 4th side portion (74). Light emitted toward the 3rd side portion (73) and the 4th side portion (74) can be reflected by the 3rd side portion (73) and the 4th side portion (74) and travel toward the display panel (10). That is, light generated from a substrate placed at an edge or corner of a backlight unit can be widely spread from the edge or corner of the backlight unit toward the side, thereby improving the degradation of light performance in side areas such as the edge or corner of the backlight unit.

[0187]

[0188] As described above, according to at least one of the embodiments of the present disclosure, a display device can be provided in which light emitted from a plurality of adjacent light sources uniformly overlaps.

[0189] According to at least one of the embodiments of the present disclosure, a display device can be provided that minimizes differences in light coverage areas by a plurality of adjacent light sources depending on the backlight portion.

[0190] According to at least one of the embodiments of the present disclosure, a display device can be provided that increases the uniformity of light emitted from a backlight.

[0191] According to at least one of the embodiments of the present disclosure, a display device can be provided that improves light performance degradation in a side area of ​​a backlight unit.

[0192]

[0193] Referring to FIGS. 1 to 22, a display device (1) according to one aspect of the present disclosure includes: a display panel (10) including a first edge (LS1, LS2) that extends long and a second edge (SS1, SS2) that is connected to the first edge and extends long in a direction intersecting the first edge; 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 plurality of light sources (51) positioned on the substrate (40) and providing light toward the display panel (10), wherein the substrate (40) includes: an inner region (Ar5) facing the display panel (10); And, the inner region (Ar5) and the first edge (LS1, LS2) of the display panel (10) or the inner region (Ar5) and the second edge (SS1, SS2) of the display panel (10) are located between the inner region (Ar5) and the outer region (Ar1, Ar2, Ar3, Ar4) adjacent to the inner region (Ar5), and the plurality of light sources (51) may include: a plurality of first light sources (51a) arranged in the inner region (Ar5) and aligned in a first direction; and a plurality of second light sources (51b) arranged in the outer region (Ar1, Ar2, Ar3, Ar4) and aligned in a second direction different from the first direction.

[0194] The light source (51) includes a first side (511) that is elongated; and a second side (512) that extends in a direction intersecting the longitudinal direction of the first side (511) and has a shorter length than the first side (511), and the direction in which the light source (511) is aligned is defined as the direction in which the first side (511) faces, and the amount of light emitted from the light source in the longitudinal direction of the second side (512) through the first side (511) may be greater than the amount of light emitted in the longitudinal direction of the first side (511) through the second side (512).

[0195] The above outer region (Ar1, Ar2, Ar3, Ar4) may include a first outer region (Ar1, Ar2) positioned between the inner region (Ar5) and the first edge (LS1, LS2) of the display panel (10) and extending in the longitudinal direction of the first edge (LS1, LS2); and a second outer region (Ar3, Ar4) positioned between the inner region (Ar5) and the second edge (SS1, SS2) of the display panel (10) and extending in the longitudinal direction of the second edge (SS1, SS2).

[0196] The first direction is the longitudinal direction of the first edge (LS1, LS2), the second direction is the longitudinal direction of the second edge (SS1, SS2), the second light source (51b) is disposed in the first outer region (Ar1, Ar2), and the first light source (51a) can be disposed in the remaining region where the second light source (51b) is not disposed.

[0197] The above plurality of light sources (51) are arranged in rows and columns on the substrate (40), and the pitch (P1) between light sources adjacent to each other in the first direction among the plurality of light sources (51) may be greater than the pitch (P2) between light sources adjacent to each other in the second direction.

[0198] The first direction is the longitudinal direction of the second edge (SS1, SS2), the second direction is the longitudinal direction of the first edge (LS1, LS2), the second light source (51b) is disposed in the second outer region (Ar3, Ar4), and the first light source (51a) can be disposed in the remaining region where the second light source (51b) is not disposed.

[0199] The above plurality of light sources (51) are arranged in rows and columns on the substrate (40), and the pitch (P2) between light sources adjacent to each other in the first direction among the plurality of light sources (51) may be greater than the pitch (P1) between light sources adjacent to each other in the second direction.

[0200] The substrate (40) includes a plurality of first plates (422) that extend in the longitudinal direction of the first edge (LS1, LS2) and are spaced apart from each other in the longitudinal direction of the second edge (SS1, SS2); and a second plate (421) that extends in the longitudinal direction of the second edge (SS1, SS2) and is connected to one end of the first plates (422); and the first plates (422) include at least one first bending portion (4221) that is convexly bent toward the first edge (LS1, LS2); and at least one second bending portion (4222) that extends from the first bending portion (4221) and is convexly bent in a direction opposite to the first bending portion (4421); and the first bending portion (4221) and the second bending portion (4222) can be alternately arranged along the first direction.

[0201] The first direction is the longitudinal direction of the first edge (LS1, LS2), the second direction is the longitudinal direction of the second edge (SS1, SS2), and the second light source (51b) may be disposed at the first bending portion (4221) of the plate (422a) that is closest to one side of the substrate (40) in the longitudinal direction of the second edge (SS1, SS2) among the plurality of first plates (422) and the second bending portion (4222) of the plate (422d) that is closest to the other side of the substrate (40) in the longitudinal direction of the second edge (SS1, SS2) among the plurality of first plates (412, 422).

[0202] The first direction is the longitudinal direction of the second edge (SS1, SS2), the second direction is the longitudinal direction of the first edge (LS1, LS2), and a part of the second light source (51b) may be arranged along the longitudinal direction of the second edge (SS1, SS2) adjacent to one side of the second plate (421) in the longitudinal direction of the first edge (LS1, LS2), and the remainder may be arranged adjacent to the other end of the plurality of first plates (422).

[0203] The display device (1) further includes a side portion (70) disposed at an edge of the frame (80), including a reflective material, and inclined toward the display panel (10) with respect to the substrate (40), wherein the side portion (70) may include: a first side portion (71) extending in the longitudinal direction of a first edge (LS1, LS2) of the display panel (10); a second side portion (72) facing the first side portion (71) and extending in the longitudinal direction of the first edge (LS1, LS2); a third side portion (73) connected to the first side portion (71) and extending in the longitudinal direction of the second edge (SS1, SS2) of the display panel (10); and a fourth side portion (74) facing the third side portion (73) and extending in the longitudinal direction of the second edge (SS1, SS2).

[0204] The second light source (51b) is arranged in the first outer region (Ar1, Ar2) and can be adjacent to either the first side portion (71) or the second side portion (72).

[0205] The widths of the first to fourth side portions (71, 72, 73, 74) are defined in a direction in which each of the first to fourth side portions is inclined toward the display panel (10), and the width (Wb1) of the first side portion (71) and the width (Wb2) of the second side portion (72) may be greater than the width (Wb3) of the third side portion (73) and the width (Wb4) of the fourth side portion (74).

[0206] The second light source (51b) is arranged in the second outer region (Ar3, Ar4) and can be adjacent to either the third side portion (73) or the fourth side portion (74).

[0207] The widths of the first to fourth side portions (71, 72, 73, 74) are defined in a direction in which each of the first to fourth side portions is inclined toward the display panel (10), and the width (Wb3) of the third side portion (73) and the width (Wb4) of the fourth side portion (74) may be greater than the width (Wb1) of the first side portion (71) and the width (Wb2) of the second side portion (72).

[0208]

[0209] 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.

[0210] 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.

[0211] 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. A display panel including a first edge that extends long and a second edge that is connected to the first edge and extends long in a direction intersecting the first edge; 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 comprising a plurality of light sources positioned on the substrate and providing light toward the display panel; The above substrate is, An inner area facing the above display panel; and, An outer region located between the inner region and the first edge of the display panel or the inner region and the second edge of the display panel, and adjacent to the inner region, The above multiple light sources are: A plurality of first light sources arranged in the inner region and aligned in a first direction; and, A display device comprising a plurality of second light sources arranged in the outer region and aligned in a second direction different from the first direction.

2. In paragraph 1, The above light source is, a first side that is elongated; and A second side extending in a direction intersecting the longitudinal direction of the first side and having a shorter length than the first side, The direction in which the above light source is aligned is defined as the direction in which the first side faces, A display device wherein the amount of light emitted in the longitudinal direction of the second side through the first side from the light source is greater than the amount of light emitted in the longitudinal direction of the first side through the second side.

3. In paragraph 1, The above outer area is, A first outer region positioned between the inner region and the first edge of the display panel and extending in the longitudinal direction of the first edge; and A display device comprising a second outer region positioned between the inner region and the second edge of the display panel and extending in the longitudinal direction of the second edge.

4. In paragraph 3, The above first direction is the longitudinal direction of the first edge, The above second direction is the longitudinal direction of the above second edge, The above second light source is, is placed in the first outer region above, The above first light source is, A display device placed in a remaining area where the second light source is not placed.

5. In paragraph 4, The above multiple light sources Arranged in rows and columns on the above substrate, A display device wherein the pitch between light sources adjacent to each other in the first direction among the plurality of light sources is greater than the pitch between light sources adjacent to each other in the second direction.

6. In paragraph 3, The above first direction is the longitudinal direction of the above second edge, The above second direction is the longitudinal direction of the above first edge, The above second light source is, is placed in the second outer area above, The above first light source is, A display device placed in a remaining area where the second light source is not placed.

7. In paragraph 6, The above multiple light sources Arranged in rows and columns on the above substrate, A display device wherein the pitch between light sources adjacent to each other in the first direction among the plurality of light sources is greater than the pitch between light sources adjacent to each other in the second direction.

8. In paragraph 1, The above substrate is, A plurality of first plates extending in the longitudinal direction of the first edge and spaced apart from each other in the longitudinal direction of the second edge; and A second plate extending in the longitudinal direction of the second edge and connected to one end of the first plates; The above first plates, At least one first bending portion convexly bent toward the first edge; and At least one second bending portion extending from the first bending portion and convexly bent in a direction opposite to the first bending portion; A display device in which the first bending portion and the second bending portion are alternately arranged along the first direction.

9. In paragraph 8, The above first direction is the longitudinal direction of the first edge, The above second direction is the longitudinal direction of the above second edge, The above second light source is, A display device arranged at the first bending portion of the plate most adjacent to one side of the substrate in the longitudinal direction of the second edge among the plurality of first plates and at the second bending portion of the plate most adjacent to the other side of the substrate in the longitudinal direction of the second edge among the plurality of first plates.

10. In paragraph 8, The above first direction is the longitudinal direction of the above second edge, The above second direction is the longitudinal direction of the above first edge, The above second light source is, Some are arranged along the longitudinal direction of the second edge adjacent to one side of the second plate in the longitudinal direction of the first edge, A display device in which the remainder is arranged adjacent to the other end of the plurality of first plates.

11. In paragraph 3, Further comprising a side portion arranged at an edge of the frame, including a reflective material, and arranged at an angle toward the display panel with respect to the substrate; The above side part, A first side portion extending in the longitudinal direction of the first edge of the display panel; A second side portion facing the first side portion and extending in the longitudinal direction of the first edge; A third side portion connected to the first side portion and extending in the longitudinal direction of the second edge of the display panel; and A display device comprising a fourth side portion facing the third side portion and extending in the longitudinal direction of the second edge.

12. In paragraph 11, The above second light source is, A display device disposed in the first outer region and adjacent to one of the first side portion and the second side portion.

13. In paragraph 12, The width of the first to fourth side portions is defined in a direction in which each of the first to fourth side portions is inclined toward the display panel, A display device wherein the width of the first side portion and the width of the second side portion are greater than the width of the third side portion and the width of the fourth side portion.

14. In paragraph 11, The above second light source is, A display device disposed in the second outer region and adjacent to one of the third side portion and the fourth side portion.

15. In paragraph 14, The width of the first to fourth side portions is defined in a direction in which each of the first to fourth side portions is inclined toward the display panel, A display device wherein the width of the third side portion and the width of the fourth side portion are greater than the width of the first side portion and the width of the second side portion.

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