Display Device

Abstract

To provide a display device capable of improving the image quality of an image.SOLUTION: A display device comprises a display panel 10, a frame 20 positioned behind the display panel, a substrate 40 that is positioned between the display panel and the frame and is coupled to the frame, and a plurality of light sources positioned on the substrate. The substrate comprises a body extending longitudinally, and legs that protrude from one long side of the body and are spaced apart from each other along the one long side. The plurality of light sources comprise a first row of light sources positioned on the legs, and a second row of light sources that are positioned on the legs or the body and are spaced apart from the first row. The first and second rows of light sources are positioned along columns parallel to the legs, and may be bundled into a local dimming block for at least each one of the columns.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to display devices.

[0002] Related Art This application claims priority under Article 4 of the Paris Convention based on Korean Patent Application No. 10-2023-0003918 (filing date: January 11, 2023 / DAS code: 625F) and Korean Patent Application No. 10-2023-0060391 (filing date: May 10, 2023 / DAS code: 867A), and the present application is based on the contents disclosed in the Korean patent application. For reference, the contents of the specification, claims and drawings of the Korean patent application are incorporated herein by reference. [Background technology]

[0003] As the information society develops, the demand for display devices is also increasing in various forms. In response to this, various display devices such as LCD (Liquid Crystal Display Device), PDP (Plamma Display Panel), ELD (Electro Luminescent Display), VFD (Vacuum Fluorescent Display), OLED (Organic Light Emitting Diode) etc. have been researched and used recently.

[0004] Among them, the LCD panel includes a TFT substrate and a color substrate that face each other with a liquid crystal layer sandwiched therebetween, and can display images using light provided by a backlight unit.

[0005] Recently, much research has been conducted on the structure of substrates on which light sources such as LEDs are mounted, as well as on how to improve the quality of images displayed by display panels. Summary of the Invention [Problem to be solved by the invention]

[0006] The present disclosure is directed to solving the above-referenced problems and other problems.

[0007] Another object is to provide a display device capable of reducing the manufacturing cost of the substrate.

[0008] Another object is to provide a structure capable of improving image quality by improving local dimming performance.

[0009] Another object of the present invention is to provide a structure capable of improving image quality by minimizing the phenomenon in which a reflective sheet on a substrate is lifted due to a diode on the substrate.

[0010] Another object is to provide a structure that can reduce the number of cables connecting an LED driver to multiple boards.

[0011] Another object is to provide a variety of examples regarding substrate shapes and arrangements. [Means for solving the problem]

[0012] According to one aspect of the present disclosure to achieve the above or other objectives, a display device may include: a display panel; a frame located behind the display panel; a substrate located between the display panel and the frame and coupled to the frame; and a plurality of light sources disposed on the substrate, the substrate may include: a body extending long; and legs protruding from one long side of the body and spaced apart from each other along the one long side, the plurality of light sources may include: a first row of light sources located on the legs; and a second row of light sources located on the legs or the body and spaced apart from the first row, the first and second rows of light sources may be arranged along columns parallel to the legs, and at least one column may be bundled with a local dimming block.

[0013] [One aspect of the present invention] In one embodiment of the present invention, the following invention is proposed. [1] 1. A display device, comprising: Display panel; a frame positioned behind the display panel; a substrate positioned between the display panel and the frame and coupled to the frame; and a plurality of light sources arranged (positioned) on the substrate; The substrate is Longer elongated body; and legs protruding from one side (e.g., one long side) of the body and spaced apart from each other along the one side (one long side); The plurality of light sources include a first row of light sources located on said leg; and a second row of light sources located on the legs or the body and spaced apart from the first row; The first light source and the second row of light sources are arranged in parallel to the legs and are bundled in groups of two or more in a local dimming block; A display device, wherein the local dimming block comprises at least one light source from each of the first row of light sources and the second row of light sources. [2] The local dimming block is one of a plurality of local dimming blocks; The display device of [1] further comprising a plurality of diodes located on the substrate between the plurality of local dimming blocks. [3] The display device according to claim 2, wherein the diode prevents electrostatic discharge. [4] The display device of claim 2, wherein the plurality of diodes are mounted on a body of the substrate. [5] a reflector sheet disposed on the substrate and having holes in which the light sources are disposed; The display device described in [2], wherein the reflective sheet has a plurality of cut lines corresponding to the plurality of diodes. [6] a connector coupled to the substrate, the connector comprising a power source and a plurality of pins; The substrate is a power supply line connecting the power supply and connecting each of the plurality of local dimming blocks; and a plurality of lines positioned opposite the power supply lines with respect to the plurality of light sources; The display device described in [2], wherein each of the plurality of lines connects the plurality of light sources of each of the plurality of local dimming blocks and is connected to each of the plurality of pins. [7] The power supply line is disposed along the leg adjacent the distal end of the leg; The display device of claim 6, wherein some of the lines are arranged along another side of the body. [8] the legs include mounting legs located at ends of the base and to which the connector is coupled; The display device of claim 6, wherein the width of the mounting leg is the maximum width of the legs. [9] The display device of [1], wherein the plurality of light sources further comprises at least one row of light sources located between the first row of light sources and the second row of light sources.

[10] The display device of claim 1, wherein the length of each of the legs is shorter than the length of the body.

[11] the substrate is one of a plurality of substrates spaced apart along the length of the leg; The display device further includes an extension board connecting the plurality of substrates, The display device described in [1], wherein the multiple substrates have the same shape.

[12] The extension board extends in a longitudinal direction of the leg, The plurality of substrates include a plurality of first substrates coupled to a first long side of the expansion board; and a plurality of second substrates coupled to a second long side of the expansion board; The plurality of first substrates and the plurality of second substrates are or The display device described in

[11] , which is symmetrical with respect to the expansion board.

[13] an LED driver coupled to the frame; and The display device described in

[11] further comprising: a cable connecting the LED driver and the expansion board.

[14] a plurality of lenses covering the plurality of light sources; and The display device described in [1], further comprising: a reflective sheet located on the substrate and having a plurality of holes in which the plurality of lenses are located.

[15] The display device of claim 14, wherein the reflective sheet covers the body, the legs, and the groove between the legs. Effect of the Invention

[0014] The effects of the display device according to the present disclosure will be described below.

[0015] According to at least one of the embodiments of the present disclosure, a display device capable of reducing the manufacturing cost of the substrate can be provided.

[0016] According to at least one of the embodiments of the present disclosure, a structure can be provided that can improve image quality by improving local dimming performance.

[0017] According to at least one of the embodiments of the present disclosure, it is possible to provide a structure capable of improving image quality by minimizing the phenomenon in which a reflective sheet on a substrate is lifted due to a diode on the substrate.

[0018] According to at least one of the embodiments of the present disclosure, it is possible to provide a structure that can reduce the number of cables connecting an LED driver to multiple boards.

[0019] In accordance with at least one embodiment of the present disclosure, various examples of substrate shapes and arrangements can be provided.

[0020] Further scope of applicability of the present disclosure will become apparent from the following detailed description. However, it should be understood that the detailed description and specific embodiments, such as preferred embodiments of the present disclosure, are presented by way of example only, since various changes and modifications within the spirit and scope of the present disclosure will be apparent to those skilled in the art. [Brief description of the drawings]

[0021] [Figure 1-40] FIG. 1 illustrates an example of a display device according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings. Regardless of the drawing numbers, the same or similar components are given the same reference numbers, and duplicate descriptions thereof will be omitted.

[0023] The suffixes "module" and "section" for components used in the following description are merely given or mixed to facilitate the writing of the specification, and do not have any meaning or role that is distinct from each other in themselves.

[0024] In addition, when describing the embodiments disclosed in this specification, if a specific description of related known technology is deemed to make the gist of the embodiments disclosed in this specification unclear, the detailed description will be omitted. In addition, the attached drawings are merely for the purpose of making the embodiments disclosed in this specification easily understandable, and the technical ideas disclosed in this specification are not limited by the attached drawings, and should be understood to include all modifications, equivalents, or alternatives included in the idea and technical scope of the present disclosure.

[0025] Terms including ordinal numbers such as first, second, etc. may be used to describe various components, but the components are not limited by the terms. The terms are used only to distinguish one component from another.

[0026] When a component is referred to as being "coupled" or "connected" to another component, it should be understood that the component may be directly coupled or connected to the other component, but there may be other components in between. In contrast, when a component is referred to as being "directly coupled" or "directly connected" to another component, it should be understood that there are no other components in between.

[0027] A singular expression includes a plural expression unless the context clearly indicates a different meaning.

[0028] In this application, the terms "comprise" or "have" (comprising; comprising; constructing; constructing; incorporating; containing; containing) are intended to specify the presence of features, numerals, steps, operations, components, parts, or combinations thereof set forth in the specification, but are to be understood as not precluding the presence or additional possibility of one or more other features, numerals, steps, operations, components, parts, or combinations thereof.

[0029] The directional indications of up (U), down (D), left (Le), right (Ri), front (F), and rear (R) shown in the drawings are for convenience of explanation and are not intended to limit the technical ideas disclosed in this specification.

[0030] 1, a display device 1 includes a display panel 10. The display panel 10 displays an image.

[0031] The display device 1 includes a first long side LS1, a second long side (LS2) opposite the first long side LS1, a first short side SS1 adjacent to the first long side LS1 and the second long side LS2, and a second short side SS2 opposite the first short side SS1. Meanwhile, for convenience of explanation, the first and second long sides LS1, LS2 are illustrated and described as being longer than the first and second long sides SS1, SS2, but the first and second long sides LS1, LS2 may be substantially the same in length as the first and second long sides SS1, SS2.

[0032] The direction parallel to the long sides LS1, LS2 of the display device 1 may be referred to as the left-right direction or the first direction DR1. The first short side SS1 side may be referred to as the left side (Le, x), and the second short side SS2 side may be referred to as the right side (Ri).

[0033] The direction parallel to the short sides SS1, SS2 of the display device 1 may be referred to as the up-down direction or the second direction (DR2). The first long side LS1 side may be referred to as the upper side (U, y), and the second long side LS2 side may be referred to as the lower side (D).

[0034] A direction perpendicular to the long sides LS1, LS2 and short sides SS1, SS2 of the display device 1 may be referred to as a front-rear direction or a third direction (DR3). The direction in which the display panel 10 displays an image may be referred to as a forward direction (F, z), and the opposite direction may be referred to as a rearward direction (R).

[0035] 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. Also, points 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 corners. An intersection point between the first short side SS1 and the first long side LS1 may be referred to as a first corner C1. An intersection point between the first long side LS1 and the second short side SS2 may be referred to as a second corner C2. An intersection point between the second short side SS2 and the second long side LS2 may be referred to as a third corner C3. An intersection point between the second long side LS2 and the first short side SS1 may be referred to as a fourth corner C4.

[0036] 1 and 2, a display device 1 may include a display panel 10, a side frame 20, a backlight unit, a frame 80, and a back cover 90.

[0037] The display panel 10 defines the front surface of the display device 1 and is capable of displaying an image. The display panel 10 displays an image by having a plurality of pixels output RGB (Red, Green, or Blue) for each pixel in a timed manner. The display panel 10 is 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 includes a front substrate and a rear substrate that face each other with a liquid crystal layer therebetween. The display panel 10 may also be referred to as an LCD panel 10.

[0038] The front substrate may include a plurality of pixels each including a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and the front substrate outputs light corresponding to a color of red, green, or blue in response to a control signal.

[0039] The rear substrate may include a switching element. The rear substrate switches the pixel electrodes. For example, the pixel electrodes may change the molecular alignment of the liquid crystal layer in response to a control signal input from the outside. The liquid crystal layer includes liquid crystal molecules. The alignment of the liquid crystal molecules is changed in response to a voltage difference generated between the pixel electrodes and a common electrode. The liquid crystal layer may transmit or block light provided from the backlight unit to the front substrate.

[0040] The side frame 20 extends along the edge of the display panel 10. The side frame 20 can cover the edge of the display panel 10. For example, the side frame 20 may include a plastic or metal material. The side frame 20 may also be referred to as a guide panel 20.

[0041] The backlight unit is located behind the display panel 10. The backlight unit is located in front of the frame 80 and is coupled to the frame 80. The backlight unit is driven by a full driving method or a partial driving method such as local dimming or impulsive. The backlight unit includes light sources that provide light forward, a substrate 40 on which the light sources are mounted, lenses 53 that cover the light sources, a reflective sheet 60 that covers the front surface of the substrate 40, and an optical unit 30 that is located in front of the reflective sheet 60.

[0042] The optical unit 30 faces the display panel 10 across the side frame 20. The optical unit 30 uniformly transmits light from the light source to the display panel 10. The optical unit 30 may include a diffusion plate 31 and an optical sheet 32.

[0043] The diffusion plate 31 is located between the reflection sheet 60 and the optical sheet 32. The diffusion plate 31 diffuses the light of the light source. An air gap may be formed between the reflection sheet 60 and the diffusion plate 31. The air gap may function as a buffer, and the light of the light source may be widely spread through the air gap. The supporter 39 is located between the reflection sheet 60 and the diffusion plate 31, and is coupled to the reflection sheet 60 to support the diffusion plate 31.

[0044] The optical sheet 32 ​​is 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 are bonded or in close contact with 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 prevents the light emitted from the diffusion plate 31 from being partially concentrated, thereby making the light distribution uniform. The prism sheet collects the light emitted from the diffusion sheet and provides it to the display panel 10. The number and / or positions of the diffusion sheets and the prism sheets may be changed.

[0045] For example, the optical sheet 32 ​​can change the wavelength or color of the light provided by the light source. For example, the optical sheet 32 ​​includes a red phosphor and / or a green phosphor. In this case, the light source provides blue light, and the optical sheet 32 ​​can change the light of the light source to white. The optical sheet 32 ​​may be called a QD sheet (Quantum Dot Sheet).

[0046] A frame 80 is located behind the backlight unit. The display panel 10, the side frames 20, and the backlight unit are coupled to the frame 80. The frame 80 can support the display device components described above and below. For example, the frame 80 may include a metal material such as an aluminum alloy. The frame 80 may also be referred to as a main frame 80, a module cover 80, or a cover bottom 80.

[0047] The back cover 90 covers the rear of the frame 80 and is coupled to the frame 80. For example, the back cover 90 may be an injection molded resin material. As another example, the back cover 90 may include a metal material.

[0048] 3, a plate portion 81 defines a front surface of a frame 80. A plurality of frame holes 81a, 81b, 81c, 81d, 81e, 81f, 81g, 81h, and 81i are formed in the plate portion 81.

[0049] 3 and 4, the heat sink 83 covers the front surface of the flat plate portion 81 and is coupled to the flat plate portion 81. A plurality of heat sink holes 83a, 83b, 83c, 83d, 83e, 83f, 83g, 83h, and 83i are formed in the heat sink 83 and are aligned with the plurality of frame holes 81a, 81b, 81c, 81e, 81f, 81g, 81h, and 81i. The heat sink 83 may be omitted.

[0050] 5 and 6, the substrate 41 is bonded to the front surface of the frame 80 or the heat sink 83. The substrate 41 may be a PCB (Printed Circuit Board). For example, the substrate 41 includes at least one of polyethylene terephthalate (PET), glass, polycarbonate (PC), or silicon. The substrate 41 may have a plate shape.

[0051] At least one substrate 41 is provided. Each of the substrates 41a, 41b, 41c, 41d, 41e, 41f, 41g, 41h, and 41i can cover each of the regions 83A1, 83A2, 83A4, 83A5, 83A6, 83A7, 83A8, and 83A9 of the heat sink 83.

[0052] The light source 51 may be mounted on the front surface of the substrate 41. A plurality of light sources 51 may be arranged in a matrix on the front surface of the substrate 41. The light source 51 may be an LED (Light Emitting Diode) chip or an LED package. The light source 51 may be a colored LED that emits at least one color of red, green, blue, etc., or a white LED. The light source 51 may be a mini LED. An electrode pattern is formed on the substrate 41, and an adapter (connector) and the light source 51 can be connected. A power supply board provides power to the light source 51 through the substrate 41. For example, the electrode pattern may be a carbon nanotube electrode pattern.

[0053] The integrated element 52a and the capacitor 52b are located around the light source 51 and may be mounted on the front surface of the substrate 41. The integrated element 52a may be an IC chip. The capacitors 52b are opposite to the integrated element 52a. The integrated element 52a can adjust the power provided to a certain number of light sources 51.

[0054] 7 and 8, the reflective sheet 60 is bonded to the front surface of the substrate 41 (see FIG. 5). The reflective sheet 60 reflects light provided from the light source 51 or reflected from the diffuser plate 31 forward (see FIG. 2). For example, the reflective sheet 60 may include metals and / or metal oxides having high reflectivity, such as at least one of aluminum (Al), silver (Ag), gold (Au), or titanium dioxide (TiO2). For example, a resin is deposited or coated on the reflective sheet 60. At least one reflective sheet 60 is provided. A plurality of reflective sheets 60a, 60b, 60c, 60d, 60e, 60f, 60g, 60h, and 60i may cover the substrate 41 (see FIG. 5).

[0055] Holes 601 are formed in the reflective sheet 60, and the light sources 51 (see FIG. 6) or the lenses 53 covering the light sources 51 are located in the holes 601. The diameter of the holes 601 may be larger than the diameter of the lenses 53. The number of the holes 601 may be the same as the number of the light sources 51 or the lenses 53.

[0056] The receiving hole 602 is formed in the reflective sheet 60, and the integrated element 52a (see FIG. 6) is located in the receiving hole 602. A first cut line CLa around the receiving hole 602 may be opened by the integrated element 52a. A cross-shaped second cut line CLb is formed in the reflective sheet 60, and faces each other with respect to the first cut line CLa. A capacitor 52b (see FIG. 6) may be located on the second cut line CLb, and the second cut line CLb may be opened by the capacitor 52b. This allows the reflective sheet 60 to be in close contact with the substrate 41, and light uniformity can be improved.

[0057] Meanwhile, the supporter 39 is detachably coupled to the heat sink 83 and / or the frame 80 by penetrating the reflective sheet 60 and the substrate 41 (see FIG. 5). A plurality of supporters 39 spaced apart from each other may be disposed on the reflective sheet 60. The front end of the supporter 39 supports the rear surface of the diffusion plate 31 (see FIG. 2).

[0058] 9 and 10, the substrate 42 may be coupled to the front surface of the frame 80 or the heat sink 83. The substrate 42 may be a PCB (Printed Circuit Board). For example, the substrate 42 may include at least one of polyethylene terephthalate (PET), glass, polycarbonate (PC), or silicon. The substrate 42 may have a fork shape.

[0059] The substrate 42 includes a body 421 and legs 422. The body 421 may be elongated. The legs 422 may be elongated from one long side of the body 421 in a direction intersecting the body 421. The length of the body 421 may be defined vertically, and the length of the legs 422 may be defined horizontally. The width (42La) of the body 421 may be smaller than the length (42Ha) of the body 421 and may be smaller or similar to the length (42Lb) of the legs 422. The legs 422 are spaced apart from each other in the length direction of the body 421. The distance (Gb) between the legs 422 may be the same as the width (42Hb) of the legs 422.

[0060] There may be at least one substrate 42. Each of the substrates 42 may cover a corresponding one of the regions 83A1, 83A2, 83A3, 83A4, 83A5, 83A6, 83A7, 83A8, and 83A9 of the heat sink 83 (see FIG. 4).

[0061] The light source 51 may be mounted on the front surface of the substrate 42. A plurality of light sources 51 may be arranged in a matrix on the front surfaces of the body 421 and the legs 422. An integrated element and a capacitor are located around the light source 51 and are mounted on the front surface of the substrate 42. A reflective sheet 60 is coupled to the front surface of the substrate 42 and has holes in which the light source 51 or a lens covering the light source 51 is located. A plurality of reflective sheets 60a, 60b, 60c, 60d, 60e, 60f, 60g, 60h, and 60i may cover the substrate(s) 42.

[0062] 11, a board P is mounted on a frame 80. A plurality of electronic elements are mounted on the board P. The board P may be a PCB (Printed Circuit Board) and is electrically connected to electronic components of a display device. The plurality of boards P may be coupled to the rear surface of the frame 80.

[0063] A power supply board P1 supplies power to each component of the display device. A light emitting diode driver P2 (LED driver) is electrically connected to the power supply board P1 and the main board P3 via a cable, and provides power and current to a board on which a light source such as an LED is mounted. The mother board P3 controls each component of the display device. A timing controller board P4 (timing controller board) is connected to the main board P3 via a cable, and provides a video signal to the display panel 10. For example, the power supply board P1 is adjacent to the left side of the frame 80, and the mother board P3 is adjacent to the right side of the frame 80. The LED driver P2 may be located between the power supply board P1 and the mother board P3, and the timing controller board P4 may be located below the LED driver P2.

[0064] The cable 11 is adjacent to the bottom side of the display panel 10 and is electrically connected to the display panel 10. The cable 11 can pass through a slit SL or a hole formed in the frame 80. For example, the cable 11 may be a COF (Chip On Film).

[0065] The source PCB 12 is coupled to the rear surface of the frame 80 adjacent to the lower side of the frame 80 and is electrically connected to the cable 11. For example, a plurality of source PCBs 12a, 12b, 12c, and 12d are spaced apart from one another along the lower side of the frame 80 and are electrically connected to the plurality of cables 11. The second source PCB 12b is electrically connected to the first source PCB 12a via a first bridge cable (not numbered). The third source PCB 12c is electrically connected to the fourth source PCB 12d via a second bridge cable (not numbered). The second source PCB 12b and the third source PCB 12c are electrically connected to the timing controller board P4 via a connecting cable (not numbered). For example, the first and second bridge cables and the connecting cable may be FFCs (Flexible Flat Cables).

[0066] Thus, the timing controller board P4 provides digital video data and timing control signals to the display panel 10 via the source PCB 12.

[0067] The back cover 90 is located behind the frame 80 and is coupled to the frame 80. The board P is located between the frame 80 and the back cover 90 and is covered by the back cover 90.

[0068] 12 and 13, a plurality of connectors 54a, 54b, 54c, 54d, 54e, 54f, 54g, and 54h may be mounted on the backs of a plurality of boards 41 and 42. The number of connectors 54a, 54b, 54c, 54d, 54e, 54f, 54g, and 54h may be the same as the number of boards 41 and 42.

[0069] Referring to FIG. 12, each of the plurality of substrates 41a, 41b, 41c, 41d, 41e, 41g, 41h may have a plate shape (see FIG. 5). The first connector 54a is coupled to the rear surface of the first substrate 41a, and the second connector 54b is coupled to the rear surface of the second substrate 41b. The third connector 54c is coupled to the rear surface of the third substrate 41c, and the fourth connector 54d is coupled to the rear surface of the fourth substrate 41d. The fifth connector 54e is coupled to the rear surface of the fifth substrate 41e, and the sixth connector 54f is coupled to the rear surface of the sixth substrate 41f. The seventh connector 54g is coupled to the rear surface of the seventh substrate 41g, and the eighth connector 54h is coupled to the rear surface of the eighth substrate 41h.

[0070] Referring to FIG. 13, each of the plurality of substrates 42a, 42b, 42c, 42d, 42e, 42f, 42g, 42h may have a fork shape (FIG. 9). The first connector 54a is coupled to the back surface of the body 421 of the first substrate 42a, and the second connector 54b is coupled to the back surface of the body 421 of the second substrate 42b. The third connector 54c is coupled to the back surface of the body 421 of the third substrate 42c, and the fourth connector 54d is coupled to the back surface of the body 421 of the fourth substrate 42d. The fifth connector 54e is coupled to the back surface of the body 421 of the fifth substrate 42e, and the sixth connector 54f is coupled to the back surface of the body 421 of the sixth substrate 42f. The seventh connector 54g is coupled to the back surface of the body 421 of the seventh substrate 42g, and the eighth connector 54h is coupled to the back surface of the body 421 of the eighth substrate 42h.

[0071] 14, the LED driver P2 is electrically connected to the connectors 54a, 54b, 54c, 54d, 54e, 54f, and 54h via cables Fa, Fb, Fc, Fd, Fe, Ff, Fg, and Fh. The cables Fa, Fb, Fc, Fd, Fe, Ff, Fg, and Fh may be FFCs (Flexible Flat Cables). The MCU (Micro Controller Unit) of the LED driver P2 converts (processes) data relating to the brightness of the multiple light sources 51 on the multiple boards 41 and 42 transmitted from the motherboard P3 and provides the converted data to the driver IC of the LED driver P2. The driver IC is connected to the boards 41; 42 via connectors 54a, 54b, 54c, 54d, 54e, 54f, 54g, 54h via cables Fa, Fb, Fc, Fd, Fe, Ff, Fg, Fh, and the brightness of the light source 51 can be adjusted by adjusting the amount of current flowing through the light source 51 on each board or by cutting off the flow of current.

[0072] One end of the first cable Fa is connected to the first connector Ja of the LED driver P2, and the other end of the first cable Fa is connected to the first connector 54a via the first frame hole 81a.

[0073] One end of the second cable Fb is connected to the second connector Jb of the LED driver P2, and the other end of the second cable Fb is connected to the second connector 54b via the second frame hole 81b.

[0074] One end of the third cable Fc is connected to the third connector Jc of the LED driver P2, and the other end of the third cable Fc is connected to the third connector 54c via a third frame hole 81c.

[0075] One end of the fourth cable Fd is connected to the fourth connector Jd of the LED driver P2, and the other end of the fourth cable Fd is connected to the fourth connector 54d via a fourth frame hole 81d.

[0076] One end of the fifth cable Fe is connected to the fifth connector Je of the LED driver P2, and the other end of the fifth cable Fe is connected to the fifth connector 54e via the fifth frame hole 81e.

[0077] One end of the sixth cable Ff is connected to the sixth connector Jf of the LED driver P2, and the other end of the sixth cable Ff is connected to the sixth connector 54f via a sixth frame hole 81f.

[0078] One end of the seventh cable Fg is connected to the seventh connector Jg of the LED driver P2, and the other end of the seventh cable Fg is connected to the seventh connector 54g via a seventh frame hole 81g.

[0079] One end of the eighth cable Fh is connected to the eighth connector Jh of the LED driver P2, and the other end of the eighth cable Fh is connected to the eighth connector 54h via an eighth frame hole 81h.

[0080] That is, in order to connect the LED driver P2 to a plurality of boards 41 (see FIG. 12); 42 (see FIG. 13), the same number of cables Fa, Fb, Fc, Fd, Fe, Ff, Fg, and Fh as the number of boards 41; 42 are required. Such a large number of cables Fa, Fb, Fc, Fd, Fe, Ff, Fg, and Fh may increase the manufacturing cost of the display device, and may complicate the connection structure between the LED driver P2 and the boards 41, 42.

[0081] 15, the substrate 43 is coupled to the front surface of the frame 80 (see FIG. 32) (or to the front surface of the heat sink 83). The substrate 43 may be a PCB (Printed Circuit Board). For example, the substrate 43 may include at least one of polyethylene terephthalate (PET), glass, polycarbonate (PC), or silicon. The substrate 43 may have a bar shape.

[0082] Each of the plurality of substrates 43 may be elongated. The plurality of substrates 43 are spaced apart from each other in a direction perpendicular to the length direction of the substrates 43. The length direction of the substrates 43 is defined in the horizontal direction.

[0083] The extension board 59 extends in a direction in which the substrates 43 are spaced apart from each other (e.g., vertically). For example, the substrates 43 extend from one long side of the extension board 59 in a direction intersecting the extension board 59 (e.g., horizontally). As another example, the substrates 43 include a plurality of first substrates 43L and a plurality of second substrates 43R opposed to each other with respect to the extension board 59. The plurality of first substrates 43L and the plurality of second substrates 43R may be aligned with each other or staggered in the length direction of the substrate 43. The plurality of first substrates 43L and the plurality of second substrates 43R may have the same shape.

[0084] The multiple first boards 43La, 43Lb, 43Lc, 43Ld, 43Le, 43Lf, 43Lg, 43Lh, 43Li, 43Lj, 43Lk, 43Ll 43Lm, 43Ln, 43Lo, 43Lp, 43Lq, and 43Lr are electrically connected to the expansion board 59 adjacent to a first long side (e.g., the left side) of the expansion board 59 via multiple first connectors 43Lz.

[0085] Multiple second boards 43Ra, 43Rb, 43Rc, 43rd, 43Re, 43Rf, 43Rg, 43Rh, 43Ri, 43Rj, 43Rk, 43Rl, 43Rm, 43Rn, 43Ro, 43Rp, 43Rq, and 43Rr are connected to the expansion board 59 adjacent to the second long side (e.g., the right side) of the expansion board 59 via multiple second connectors 43Rz.

[0086] The light sources 51 may be arranged in a matrix on the front surface of the substrates 43. The reflecting sheet(s) 60 (see FIG. 2) includes holes in which the light sources 51 or lenses covering the light sources 51 are located.

[0087] As a result, the expansion board 59 is electrically connected to the multiple boards 43 via the multiple connectors 43Lz, 43Rz. The LED driver P2 is electrically connected to the connector of the expansion board 59 via a cable Fi (see FIG. 32). The cable Fi may be an FFC (Flexible Flat Cable). The connectivity of the LED driver P2 can be extended to the multiple boards 43 via the expansion board 59.

[0088] Since each of the plurality of boards 43 is connected to the expansion board 59 via each of the plurality of connectors 43Lz, 43Rz, a local dimming block may be independently configured for each of the plurality of boards 43. The light sources 51 mounted on each of the plurality of boards 43 may be arranged in a line in the length direction of the board 43 and may be sequentially bundled by the local dimming block in the length direction of the board 43.

[0089] For example, 20 light sources 51 are arranged in a row on the first substrate 43La, and the light sources 51 are bundled into local dimming blocks of N pieces, where N is a natural number greater than or equal to 1. When the light sources 51 are bundled into local dimming blocks of four pieces, the number of local dimming blocks BL1, BL2, BL3, BL4, and BL5 is five. The local dimming block of the first substrate 43La may be configured independently of the local dimming blocks of the remaining first substrates 43Lb, 43Lc, 43Ld, 43Le, 43Lf, 43Lg, 43Lh, 43Li, 43Lj, 43Lk, 43Ll 43Lm, 43Ln, 43Lo, 43Lp, 43Lq, and 43Lr, and may also be configured independently of the local dimming blocks of the multiple second substrates 43Ra, 43Rb, 43Rc, 43Rd, 43Re, 43Rf, 43Rg, 43Rh, 43Ri, 43Rj, 43Rk, 43Rl 43Rm, 43Rn, 43Ro, 43Rp, 43Rq, and 43Rr.

[0090] 16, the first connector 43Lza may be provided on the first substrate 43La, and the first connector 43Lzb' may be provided on the first substrate 43Lb'. The first connector 43Lza is connected to an input connector 43Lzb1 of the first connector 43Lzb'. The input connector 43Lzb1 is connected to an output connector 43Lzb2 of the first connector 43Lzb'. The light sources 51 arranged in a row on the first substrate 43La and the light sources 51 arranged in a row on the first substrate 43Lb' may be grouped in groups of N light sources and bundled together by a local dimming block.

[0091] For example, 20 light sources 51 are arranged in a row on the first substrate 43La, and 20 light sources 51 are arranged in two rows on the first substrate 43Lb'. The light sources 51 arranged in two rows on the first substrates 43La and 43Lb' may be grouped into groups of N light sources and bundled into local dimming blocks. Here, N is an even number of 2 or more, and when the light sources 51 are bundled into groups of four into local dimming blocks, the number of local dimming blocks (BL1, BL2, BL3, BL4, BL5, BL6, BL7, BL8, BL9, BL10) is 10. The power supply VL of the first connector 43Lza is sequentially provided to the first local dimming block BL1, the second local dimming block BL2, the third local dimming block BL3, the fourth local dimming block BL4, the fifth local dimming block BL5, the sixth local dimming block BL6, the seventh local dimming block BL7, the eighth local dimming block BL8, the ninth local dimming block BL9 and the tenth local dimming block BL10.

[0092] At this time, the power supply VL is connected to the two light sources 51 of the first substrate 43La belonging to the first local dimming block BL1, and is connected to the two light sources 51 of the first substrate 43Lb' belonging to the first local dimming block BL1 via the first pin B1 of the first connector 43Lza and the first pin B11 of the input connector 43Lzb1. In addition, the two light sources 51 of the first substrate 43Lb' belonging to the first local dimming block BL1 are connected to the first pin B21 of the output connector 43Lzb2.

[0093] The power supply VL, the two light sources 51 of the first board 43La belonging to the second local dimming block BL2, the second pin B2 of the first connector 43Lza, the second pin B12 of the input connector 43Lzb1, the two light sources 51 of the first board 43Lb' belonging to the second local dimming block BL2, and the second pin B22 of the output connector 43Lzb2 can be connected in sequence.

[0094] The power supply VL, the two light sources 51 of the first board 43La belonging to the third local dimming block BL3, the third pin B3 of the first connector 43Lza, the third pin B13 of the input connector 43Lzb1, the two light sources 51 of the first board 43Lb' belonging to the third local dimming block BL3, and the third pin B23 of the output connector 43Lzb2 can be connected in sequence.

[0095] The power supply VL, the two light sources 51 of the first board 43La belonging to the fourth local dimming block BL4, the fourth pin B4 of the first connector 43Lza, the fourth pin B14 of the input connector 43Lzb1, the two light sources 51 of the first board 43Lb' belonging to the fourth local dimming block BL4, and the fourth pin B24 of the output connector 43Lzb2 can be connected in sequence.

[0096] The power supply VL, the two light sources 51 of the first board 43La belonging to the fifth local dimming block BL5, the fifth pin B5 of the first connector 43Lza, the fifth pin B15 of the input connector 43Lzb1, the two light sources 51 of the first board 43Lb' belonging to the fifth local dimming block BL5, and the fifth pin B25 of the output connector 43Lzb2 can be connected in sequence.

[0097] The power supply VL, the two light sources 51 of the first board 43La belonging to the sixth local dimming block BL6, the sixth pin B6 of the first connector 43Lza, the sixth pin B16 of the input connector 43Lzb1, the two light sources 51 of the first board 43Lb' belonging to the sixth local dimming block BL6, and the sixth pin B26 of the output connector 43Lzb2 can be connected in sequence.

[0098] The power supply VL, the two light sources 51 of the first board 43La belonging to the seventh local dimming block BL7, the seventh pin B7 of the first connector 43Lza, the seventh pin B17 of the input connector 43Lzb1, the two light sources 51 of the first board 43Lb' belonging to the seventh local dimming block BL7, and the seventh pin B27 of the output connector 43Lzb2 can be connected in sequence.

[0099] The power supply VL, the two light sources 51 of the first board 43La belonging to the 8th local dimming block BL8, the 8th pin B8 of the first connector 43Lza, the 8th pin B18 of the input connector 43Lzb1, the two light sources 51 of the first board 43Lb' belonging to the 8th local dimming block BL8, and the 8th pin B28 of the output connector 43Lzb2 can be connected in sequence.

[0100] The power supply VL, the two light sources 51 of the first board 43La belonging to the 9th local dimming block BL9, the 9th pin B9 of the first connector 43Lza, the 9th pin B19 of the input connector 43Lzb1, the two light sources 51 of the first board 43Lb' belonging to the 9th local dimming block BL9, and the 9th pin B29 of the output connector 43Lzb2 can be connected in sequence.

[0101] The power supply VL, the two light sources 51 of the first board 43La belonging to the tenth local dimming block BL10, the tenth pin B10 of the first connector 43Lza, the tenth pin B110 of the input connector 43Lzb1, the two light sources 51 of the first board 43Lb' belonging to the tenth local dimming block BL10, and the tenth pin B210 of the output connector 43Lzb2 can be connected in sequence.

[0102] The power supply VL may be a power supply VLED transmitted from the power supply board P1 to the first connector 43Lza via the LED driver P2 and the expansion board 59 (see FIG. 32). The pins B21, B22, B23, B24, B25, B26, B27, B28, B29, and B210 of the output connector 43Lzb2 may be connected to the driver IC of the expansion board 59. This allows local dimming to be achieved by adjusting the brightness of the light sources 51 belonging to each of the local dimming blocks BL1, BL2, BL3, BL4, BL5, BL6, BL7, BL8, BL9, and BL10.

[0103] Referring to Figure 15, each of the first substrate 43La and the first substrate 43Lb described above has five local dimming blocks each consisting of four light sources 51, while referring to Figure 16, each of the first substrate 43La and the first substrate 43Lb' described above can have ten local dimming blocks each consisting of four light sources 51.

[0104] Therefore, the structure described above with reference to Fig. 16 has a better local dimming effect than the structure described above with reference to Fig. 15. However, in order to group the light sources 51 of the first boards 43La and 43Lb' in Fig. 16 into groups of N light sources to configure them as local dimming blocks, the first connector 43Lzb' connected to the first board 43Lb' needs to include an input connector 43Lzb1 and an output connector 43Lzb2, and as a result, the width (W2) of the first board 43Lb' may be larger than the width (W1) of the first board 43La. That is, the structure of Fig. 16 requires higher board manufacturing costs than the structure of Fig. 15.

[0105] 17 and 18, the substrate 44 is coupled to the front surface of the frame 80 (see FIG. 32) (or the front surface of the heat sink 83). The substrate 44 may be a PCB (Printed Circuit Board). For example, the substrate 44 may include at least one of polyethylene terephthalate (PET), glass, polycarbonate (PC), or silicon. The substrate 44 may have a bar shape.

[0106] Each of the plurality of substrates 44 may be elongated. The plurality of substrates 44 are spaced apart from each other in a direction perpendicular to the length of the substrate 44. The length of the substrate 44 is defined in the horizontal direction.

[0107] The extension board 59 extends in a direction in which the substrates 44 are spaced apart from each other (e.g., vertically). For example, the substrates 44 extend from one long side of the extension board 59 in a direction intersecting the extension board 59 (e.g., horizontally). As another example, the substrates 44 may include a plurality of first substrates 44L and a plurality of second substrates 44R that are opposite each other with respect to the extension board 59. The plurality of first substrates 44L and the plurality of second substrates 44R may be aligned with each other in the length direction of the substrate 44 or may be staggered. The plurality of first substrates 44L and the plurality of second substrates 44R may have the same shape as each other.

[0108] The multiple first substrates 44La, 44Lb, 44Lc, 44Ld, 44Le, 44Lf, 44Lg, 44Lh, and 44Li can be electrically connected to the expansion board 59 adjacent to a first long side (e.g., the left side) of the expansion board 59 via multiple first connectors 44Lz.

[0109] The multiple second substrates 44Ra, 44Rb, 44Rc, 44Rd, 44Re, 44Rf, 44Rg, 44Rh, 44Ri can be electrically connected to the expansion board 59 adjacent to a second long side (e.g., the right side) of the expansion board 59 via multiple second connectors 44Rz.

[0110] The light sources 51 may be arranged in a matrix on the front surface of the substrates 44. The reflecting sheet(s) 60 (see FIG. 2) may include holes 601 (see FIG. 2) in which the light sources 51 or lenses covering the light sources 51 are located.

[0111] Thereby, the expansion board 59 can be electrically connected to multiple substrates 44 via multiple connectors 44Lz, 44Rz. The LED driver P2 can be electrically connected to the connector of the expansion board 59 via a cable Fi (see FIG. 32). The cable Fi may be an FFC (Flexible Flat Cable). The connectivity of the LED driver P2 can be extended to multiple substrates 44 via the expansion board 59.

[0112] Since each of the plurality of boards 44 is connected to the expansion board 59 via each of the plurality of connectors 44Lz, 44Rz, a local dimming block can be independently configured for each of the plurality of boards 44. The light sources 51 mounted on each of the plurality of boards 44 may be arranged in two rows in the length direction of the board 44, or may be bundled by the local dimming block in sequence from the length direction of the board 44.

[0113] For example, 40 light sources 51 may be arranged in two rows on the first substrate 44La, and the two rows of light sources 51 may be grouped into groups of N light sources each and bundled into a local dimming block. Here, N is an even number of 2 or more, and when the two rows of light sources 51 are grouped into groups of four light sources each and bundled into a local dimming block, the number of local dimming blocks BL1, BL2, BL3, BL4, BL5, BL6, BL7, BL8, BL9, and BL10 is 10. The local dimming block of the first substrate 44La may be configured independently of the local dimming blocks of the remaining first substrates 44Lb, 44Lc, 44Ld, 44Le, 44Lf, 44Lg, 44Lh, and 44Li, and may also be configured independently of the local dimming blocks of the plurality of second substrates 44Ra, 44Rb, 44Rd, 44Re, 44Rf, 44Rg, 44Rh, and 44Ri.

[0114] Therefore, the structure described above with reference to Figs. 17 and 18 has a better local dimming effect than the structure described above with reference to Fig. 15. And, in the structure described above with reference to Figs. 17 and 18, each of the connectors 44Lz, 44Rz only has the same number of pins as the number of power supplies and local dimming blocks, and does not need to have the additional input / output connectors of Fig. 16. However, if the pitch between the light sources 51 is the same, the width (44w) of the board 44 of Figs. 17 and 18 may be larger than the width (43w) of the board 43 of Fig. 15. The difference between the width (44w) and the width (43w) may be the same as the pitch (43g) between the boards 43 of Fig. 15. That is, the structure of Figs. 17 and 18 has a higher board manufacturing cost than the structure of Fig. 15.

[0115] Meanwhile, the first substrate 44L may have the same shape as the second substrate 44R. For example, one substrate is separated into a plurality of first substrates 44L and a plurality of second substrates 44R by a cutting process.

[0116] 19 and 20, the substrate 45 is coupled to the front surface of the frame 80 (see FIG. 32) (or the front surface of the heat sink 83). The substrate 45 may be a PCB (Printed Circuit Board). For example, the substrate 45 may include at least one of polyethylene terephthalate (PET), glass, polycarbonate (PC), or silicon. The substrate 45 may have a tongs, tuning fork, or chain shape.

[0117] The substrate 45 may include a body 45L0; 45R0 and a pair of legs 45L1, 45L2; 45R1, 45R2. The body 45L0; 45R0 may be extended long. The pair of legs 45L1, 45L2; 45R1, 45R2 extend from one long side of the body 45L0; 45R0 in a direction intersecting the body 45L0; 45R0, and are spaced apart from each other in the length direction of the body 45L0; 45R0. The length direction of the body 45L0; 45R0 is defined in the vertical direction, and the length direction of the pair of legs 45L1, 45L2; 45R1, 45R2 is defined in the horizontal direction. The length of the pair of legs 45L1, 45L2; 45R1, 45R2 may be greater than the length of the body 45L0; 45R0.

[0118] The length direction of the plurality of substrates 45 is the same as the length direction of the pair of legs 45L1, 45L2; 45R1, 45R2. The plurality of substrates 45 are spaced apart from each other in a direction perpendicular to the length direction of the substrates 45.

[0119] The extension board 59 may extend in a direction in which the substrates 45 are spaced apart from each other (e.g., vertically). For example, the substrates 45 extend from one long side of the extension board 59 in a direction intersecting the extension board 59 (e.g., horizontally). As another example, the substrates 45 may include a plurality of first substrates 45L and a plurality of second substrates 45R that are opposite to each other with respect to the extension board 59. The plurality of first substrates 45L and the plurality of second substrates 45R are aligned with each other in the length direction of the substrate 45 or are staggered. The plurality of first substrates 45L and the plurality of second substrates 45R may have the same shape.

[0120] The multiple first substrates 45La, 45Lb, 45Lc, 45Ld, 45Le, 45Lf, 45Lg, 45Lh, and 45Li are adjacent to a first long side (e.g., the left side) of the expansion board 59 and are electrically connected to the expansion board 59 via multiple first connectors 45Lz.

[0121] The multiple second substrates 45Ra, 45Rb, 45Rc, 45Rd, 45Re, 45Rf, 45Rg, 45Rh, and 45Ri are adjacent to a second long side (e.g., the right side) of the expansion board 59 and are electrically connected to the expansion board 59 via multiple second connectors 45Rz.

[0122] The light sources 51 may be arranged in a matrix on the front surface of the substrates 45. The reflecting sheet 60 (see FIG. 2) includes holes 601 (see FIG. 2) in which the light sources 51 or lenses covering the light sources 51 are located.

[0123] As a result, the expansion board 59 is electrically connected to the multiple boards 45 via the multiple connectors 45Lz and 45Rz. The LED driver P2 is electrically connected to the connector of the expansion board 59 via a cable Fi (see FIG. 32). The cable Fi may be an FFC (Flexible Flat Cable). The connectivity of the LED driver P2 can be extended to the multiple boards 45 via the expansion board 59.

[0124] Since each of the plurality of boards 45 is connected to the expansion board 59 via each of the plurality of connectors 45Lz and 45Rz, a local dimming block may be independently configured for each of the plurality of boards 45. The light sources 51 mounted on each of the plurality of boards 45 may be arranged in two rows in the length direction of the board 45 and sequentially bundled by the local dimming block in the length direction of the board 45. In this case, some of the light sources 51 are arranged in a row along the first legs 45L1 and 45R1, and the remaining light sources 51 are arranged in a row along the second legs 45L2 and 45R2.

[0125] For example, 40 light sources 51 may be arranged in two rows along the first and second legs 45L1, 45L2 of the first substrate 45La, and the two rows of light sources 51 may be grouped into groups of N light sources 51 and bundled into local dimming blocks, where N is an even number of 2 or more, and when the two rows of light sources 51 are grouped into groups of four light sources 51 and bundled into local dimming blocks, the number of local dimming blocks BL1, BL2, BL3, BL4, BL5, BL6, BL7, BL8, BL9, and BL10 is 10. The local dimming block of the first substrate 45La is configured independently of the local dimming blocks of the remaining first substrates 45Lb, 45Lc, 45Ld, 45Le, 45Lf, 45Lg, 45Lh, and 45Li, and can also be configured independently of the local dimming blocks of each of the multiple second substrates 45Ra, 45Rb, 45Rc, 45Rd, 45Re, 45Rf, 45Rg, 45Rh, and 45Ri.

[0126] As a result, the structure described above with reference to Figures 19 and 20 has a better local dimming effect than the structure described above with reference to Figure 15. And, in the structure described above with reference to Figures 19 and 20, each of the multiple connectors 45Lz, 45Rz only has the same number of pins as the number of power supplies and local dimming blocks, and may additionally have the input / output connector of Figure 16. Also, when the pitch between the light sources 51 is the same, the leg width (45w) of the board 45 of Figures 19 and 20 may be the same as the width (43w) of the board 43 of Figure 15.

[0127] Meanwhile, the first substrate 45L may have the same shape as the second substrate 45R. For example, one substrate is separated into a plurality of first substrates 45L and a plurality of second substrates 45R by a cutting process. The interval (45g) between the pair of legs 45L1, 45L2; 45R1, 45R2 may be the same as the width (45w) of each of the pair of legs 45L1, 45L2; 45R1, 45R2.

[0128] 21, the arrangement of wiring and components on the board 45 can be described using the second board 45R as an example. A part of the light source 51 is mounted on the first leg 45R1 and the body 45R0 along the length direction of the first leg 45R1. The remaining light source 51 is mounted on the second leg 45R2 and the body 45R0 along the length direction of the second leg 45R2. Lines Lv, Lf1, Lf2, and Lf3 described below may be circuits.

[0129] The power supply line Lv (see solid line) is connected to the power supply VL of the second connector 45Rz and wired to the first leg 45R1. The power supply line Lv is adjacent to the upper side of the first leg 45R1, and parts of the lines Lf1, Lf2, and Lf3 are adjacent to the lower side of the first leg 45R1. The power supply line Lv may be branched out by the number of local dimming blocks. The first branch line Lv1 is connected to the light source 51 of the first leg 45R1 belonging to the first local dimming block BL1. The second branch line Lv2 is connected to the light source 51 of the first leg 45R1 belonging to the second local dimming block BL2. The third branch line Lv3 is connected to the light source 51 of the first leg 45R1 belonging to the third local dimming block BL3.

[0130] The first line Lf1 (see dotted line) is connected to the first branch line Lv1, and is connected to the first pin B1 of the second connector 45Rz via the light source 51 of the second leg 45R2 belonging to the first local dimming block BL1.

[0131] The second line Lf2 (see the two-dot chain line) is connected to the second branch line Lv2, and is connected to the second pin B2 of the second connector 45Rz via the light source 51 of the second leg 45R2 belonging to the second local dimming block BL2.

[0132] The third line Lf3 (see dashed dotted line) is connected to the third branch line Lv3, and is connected to the third pin B3 of the second connector 45Rz via the light source 51 of the third leg 45R3 belonging to the third local dimming block BL3.

[0133] The power supply VL may be a power supply VLED transmitted from the power supply board P1 to the first connector 43Lza via the LED driver P2 and the expansion board 59 (see FIG. 32). The pins B1, B2, and B3 of the connector 45Rz are connected to the driver IC of the expansion board 59 (see FIG. 19). The lines Lf1, Lf2, and Lf3 may be referred to as feedback lines Lf1, Lf2, and Lf3.

[0134] The power supply VL is supplied to the first local dimming block BL1 through the first branch line Lv1, and the current passing through the first local dimming block BL1 flows to the driver IC through the first line Lf1 and the first pin B1. Similarly, the power supply VL is supplied to the second and third local dimming blocks BL2 and BL3 through the second and third branch lines Lv2 and Lv3, and the current passing through the second and third local dimming blocks BL2 and BL3 flows to the driver IC through the second and third lines Lf2 and Lf3 and the second and third pins B2 and B3. At this time, the driver IC can adjust the amount of current flowing through the light source 51 belonging to each local dimming block BL1, BL2, and BL3 or block the flow of current, thereby adjusting the brightness of the light source 51 belonging to each local dimming block BL1, BL2, and BL3, and as a result, local dimming can be realized.

[0135] The diodes Z1, Z2, and Z3 are mounted on the body 45R0. The diodes Z1, Z2, and Z3 may be ESD protection diodes for preventing electrostatic discharge (ESD). The diodes Z1, Z2, and Z3 may be Zener diodes. One side of the first diode Z1 is connected to the voltage line Lv, and the other side of the first diode Z1 is connected to the first line Lf1. One side of the second diode Z2 is connected to the voltage line Lv, and the other side of the second diode Z2 is connected to the second line Lf2. One side of the third diode Z3 is connected to the voltage line Lv, and the other side of the third diode Z3 is connected to the third line Lf3. Jumpers Ja and Jb are mounted on the body 45R0 and can connect wiring on the body 45R0.

[0136] In this case, the diodes Z1, Z2, and Z3 are concentrated in a particular region of the body 45R0. That is, the reflective sheet 60 (see FIG. 2) on the substrate 45 may float at the positions of the diodes Z1, Z2, and Z3 by an amount corresponding to the height of the diodes Z1, Z2, and Z3. Such floating of the reflective sheet 60 reduces the distance between the display panel 10 and the reflective sheet 60, resulting in a deterioration in image quality.

[0137] In addition, since the first and second legs 45R1, 45R2 of the board 45 are separated from each other in an area other than the body 45R0, the rigidity of the board 45 may be weak. This may cause the board 45 to warp or break, making it difficult for the user to fix the board 45 to the frame.

[0138] 22 and 23, the substrate 46 is coupled to the front surface of the frame 80 (see FIG. 32) (or the front surface of the heat sink 83). The substrate 46 may be a PCB (Printed Circuit Board). For example, the substrate 46 may include at least one of polyethylene terephthalate (PET), glass, polycarbonate (PC), or silicon. The substrate 46 may have a comb or saw blade shape.

[0139] The substrate 46 may include a body 46L0; 46R0 and a plurality of legs 46Ln; 46Rn. The body 46L0; 46R0 may be extended long. The plurality of legs 46Ln; 46Rn extend from one long side of the body 46L0; 46R0 in a direction intersecting the body 46L0; 46R0, and are spaced apart from each other in the length direction of the body 46L0; 46R0. The length direction of the body 46L0; 46R0 is defined in a horizontal direction, and the length direction of the plurality of legs 46Ln; 46Rn is defined in a vertical direction. The length of the plurality of legs 46Ln; 46Rn may be smaller than the length of the body 46L0; 46R0. The body 46L0; 46R0 may be referred to as a base 46L0; 46R0, and the legs 46Ln; 46Rn may be referred to as a protrusion 46Ln; 46Rn.

[0140] The length direction of the multiple substrates 46 is the same as the length direction of the bodies 46L0 and 46R0. The multiple substrates 46 are spaced apart from each other in a direction perpendicular to the length direction of the substrates 46.

[0141] The extension board 59 extends in a direction in which the substrates 46 are spaced apart from each other (e.g., vertically). For example, the substrates 46 extend from one long side of the extension board 59 in a direction intersecting the extension board 59 (e.g., horizontally). As another example, the substrates 46 may include a plurality of first substrates 46L and a plurality of second substrates 46R that are opposite to each other with respect to the extension board 59. The plurality of first substrates 46L and the plurality of second substrates 46R are aligned or staggered with each other in the length direction of the substrate 46. The plurality of first substrates 46L and the plurality of second substrates 46R may have the same shape as each other.

[0142] The multiple first substrates 46La, 46Lb, 46Lc, 46Ld, 46Le, 46Lf, 46Lg, 46Lh, and 46Li are adjacent to a first long side (e.g., the left side) of the expansion board 59 and are electrically connected to the expansion board 59 via multiple first connectors 46Lz.

[0143] The multiple second substrates 46Ra, 46Rb, 46Rc, 46Rd, 46Re, 46Rf, 46Rg, 46Rh, and 46Ri are adjacent to a second long side (e.g., the right side) of the expansion board 59 and are electrically connected to the expansion board 59 via multiple second connectors 46Rz.

[0144] The light sources 51 are arranged in a matrix on the front surface of the substrates 46. The reflecting sheet(s) 60 (see FIG. 2) includes holes 601 (see FIG. 2) in which the light sources 51 or lenses covering the light sources 51 are located.

[0145] Thereby, the expansion board 59 is electrically connected to the multiple boards 46 via the multiple connectors 46Lz, 46Rz. The LED driver P2 can be electrically connected to the connector of the expansion board 59 via a cable Fi (see FIG. 32). The cable Fi may be an FFC (Flexible Flat Cable). The connectivity of the LED driver P2 can be extended to the multiple boards 46 via the expansion board 59.

[0146] Since each of the plurality of boards 46 is connected to the expansion board 59 via each of the plurality of connectors 46Lz, 46Rz, a local dimming block is independently configured for each of the plurality of boards 46. The light sources 51 mounted on each of the plurality of boards 46 may be arranged in a plurality of rows along the plurality of legs 46Ln; 46Rn. In other words, the light sources 51 mounted on each of the plurality of boards 46 may be arranged in two rows in the length direction of the board 46 and sequentially bundled by the local dimming block in the length direction of the board 46. In this case, some of the light sources 51 may be arranged in a row along the body 46L0; 46R0, and the remaining light sources 51 may be arranged in a row and positioned for each of the plurality of legs 46Ln; 46Rn.

[0147] For example, 40 light sources 51 may be arranged in two rows along the first substrate 46La, and the two rows of light sources 51 may be grouped into groups of N light sources each and bundled into a local dimming block. Here, N is an even number of 2 or more, and when the two rows of light sources 51 are grouped into groups of four light sources each and bundled into a local dimming block, the number of local dimming blocks BL1, BL2, BL3, BL4, BL5, BL6, BL7, BL8, BL9, and BL10 is 10. The local dimming block of the first substrate 46La may be configured independently of the local dimming blocks of the remaining first substrates 46Lb, 46Lc, 46Ld, 46Le, 46Lf, 46Lg, 46Lh, and 46Li. The local dimming block of the first substrate 46La may also be configured independently of the local dimming blocks of the remaining first substrates 46Ra, 46Rb, 46Rc, 46Rd, 46Re, 46Rf, 46Rg, 46Rh, and 46Ri.

[0148] As a result, the structure described above with reference to Figures 22 and 23 has a better local dimming effect than the structure described above with reference to Figure 15. And, in the structure described above with reference to Figures 22 and 23, each of the multiple connectors 46Lz, 46Rz only has the same number of pins as the number of power supplies and local dimming blocks, and there is no need to additionally provide the input / output connector of Figure 16. Also, when the pitch between the light sources 51 is the same, the width (46w) of the body of the board 46 of Figures 22 and 23 may be the same as the width (43w) of the board 43 of Figure 15.

[0149] Meanwhile, the horizontal interval (Dx, horizontal pitch) of the light sources 51 is the same as or similar to the vertical interval (Dy, vertical pitch) of the light sources 551. For example, the horizontal interval (Dx) is smaller than the vertical interval (Dy). In this case, the direction in which the horizontal interval (Dx) is defined is parallel to the long sides LS1, LS2 (see FIG. 1) of the display device 1, and the direction in which the vertical interval (Dy) is defined is parallel to the short sides SS1, SS2 (see FIG. 1) of the display device 1. The number of light sources arranged in the long side direction of the display device 1 may be greater than the number of light sources arranged in the short side direction of the display device 1.

[0150] Referring to FIG. 23, the first substrate 46L may have the same shape as the second substrate 46R. The first substrate 46L may include a body 46L0 and a plurality of legs 46Ln, and the second substrate 46R may include a body 46R0 and a plurality of legs 46Rn. The interval (46g) between the plurality of legs 46Ln; 46Rn may be the same as the width (46t) of each of the plurality of legs 46Ln; 46Rn. The interval (46g) may be the width of a groove. The first substrate 46L and the second substrate 46R Before being separated from each other, the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, eighteenth, nineteenth and twentieth legs 46L1, 46L2, 46L3, 46L4, 46L5, 46L6, 46L7, 46L8, 46L9, 46L10, 46L11, 46L12, 46L13, 46L14, 46L15, 46L16, 46L17, 46L18, 46L19, and 20 ...2 , the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, first, fifteenth, sixteenth, seventeenth, eighteenth, nineteenth and twentieth legs 46R1, 46R2, 46R3, 46R4, 46R5, 46R6, 46R7, 46R8, 46R9, 46R10, 46R11, 46R12, 46R13, 46R14, 46R15, 46R16, 46R17, 46R18, 46R19, 46R20) of the second substrate 46R.

[0151] One plate 46A is separated into a plurality of first substrates 46L and a plurality of second substrates 46R by a cutting process, and the area of ​​the substrates 46L and 46R that are cut out as the remaining portion of the plate 46A excluding the substrates 46L and 46R can be significantly smaller than the area of ​​the substrates 46L and 46R that are cut out, thereby significantly reducing the manufacturing cost of the substrates 46L and 46R.

[0152] The first connector 46Lz is coupled to a leg located at one end of the first substrate 46L in the longitudinal direction among the multiple legs 46Ln of the first substrate 46L. For example, the first connector 46Lz is coupled to the twentieth leg 46L20, and the leg to which the first connector 46Lz is coupled may be referred to as a mounting leg. The width (46tm) of the twentieth leg 46L20 as the mounting leg is greater than or equal to the width (46t, see FIG. 22) of the remaining legs.

[0153] The second connector 46Rz is coupled to a leg located at one end of the second board 46R in the longitudinal direction among the multiple legs 46Rn of the second board 46R. For example, the second connector 46Rz is coupled to the twentieth leg 46R20, and the leg to which the second connector 46Rz is coupled may be referred to as a mounting leg. The width 46tm of the twentieth leg 46R20 as the mounting leg is greater than or equal to the width (46t, see FIG. 22) of the remaining legs.

[0154] 23-27, at least two light sources 51 are disposed along each of the plurality of legs 46Ln. The descriptions of the light sources 51 and the legs 46Ln described above and below can be similarly applied to the light sources 51 and the legs 46Rn.

[0155] 23, a pair of light sources 51 are mounted on the second leg 46L2 and a portion of the body 46L0 corresponding to the second leg 46L2. The light sources 51 mounted on the body 46L0 are in contact with or spaced apart from the boundary line Bt between the body 46L0 and the second leg 46L2.

[0156] 24, a pair of light sources 51 are attached to the second leg 46L2 and a portion of the body 46L0 corresponding to the second leg 46L2. The light sources 51 attached to the body 46L0 intersect with a boundary line Bt between the body 46L0 and the second leg 46L2.

[0157] Referring to FIG. 25, a plurality of light sources 51 are mounted on the second leg 46L2". Any one of the plurality of light sources 51 is in contact with or spaced apart from the boundary line Bt" between the body 46L0" and the second leg 46L2". The number of light sources 51 on the second leg 46L2" may be two or more than two.

[0158] 26, a plurality of light sources 51 are mounted on the second leg 46L2' and a portion of the body 46L0' corresponding to the second leg 46L2'. The number of light sources 51 on the second leg 46L2' may be two or more than two. The light sources 51 mounted on the body 46L0 are in contact with, cross or spaced apart from the boundary line Bt' between the body 46L0' and the second leg 46L2'. Alternatively, two or more light sources 51 may be mounted on the body 46L0.

[0159] Referring to FIG. 27, multiple light sources 51 are mounted on a portion of the body 46L0''' corresponding to the second leg 46L2'''. Any one of the light sources 51 mounted on the body 46L0''' is adjacent to, crosses, or is spaced apart from the boundary line Bt'''' between the body 46L0''' and the second leg 46L2'''. The light sources 51 on the second leg 46L2''' are adjacent to or spaced apart from the boundary line Bt'''' between the body 46L0''' and the second leg 46L2'''. Alternatively, two or more light sources 51 may be mounted on the second leg 46L2'''.

[0160] 28, the arrangement of wiring and components on the board 46 can be described using the second board 46R as an example. The light source 51 is mounted on the first leg 46R1 and the body 46R0 along the length of the first leg 46R1. The light source 51 is mounted on the second leg 46R2 and the body 46R0 along the length of the second leg 46R2. The light source 51 is mounted on the third leg 46R3 and the body 46R0 along the length of the third leg 46R3. Lines Lv, Lf1, Lf2, and Lf3 described below may be circuits.

[0161] The power supply line Lv (see solid line) is connected to the power supply VL of the second connector 46Rz, and is wired to the legs 46R1, 46R2, and 46R3 through the body 46R0. The power supply line Lv is disposed adjacent to the lower side of the second board 46R and along the lower side, and the lines Lf1, Lf2, and Lf3 are opposite the power supply line Lv with respect to the light source 51. Parts of the lines Lf1, Lf2, and Lf3 are disposed adjacent to the upper side of the second board 46R and along the upper side. The power supply line Lv may be branched by the number of local dimming blocks. The first branch line Lv1 is connected to the light source 51 of the first leg 46R1 belonging to the first local dimming block BL1. The second branch line Lv2 is connected to the light source 51 of the second leg 46R2 belonging to the second local dimming block BL2. The third branch line Lv3 is connected to the light source 51 of the third leg 46R3 belonging to the third local dimming block BL3.

[0162] The first line Lf1 (see dotted line) is connected to the first branch line Lv1, and is connected to the first pin B1 of the second connector 46Rz via the light source 51 of the body 46R0 belonging to the first local dimming block BL1. A portion of the first line Lf1 extends along the first leg 46R1 and can connect the light source 51 belonging to the first local dimming block BL1. The other portion of the first line Lf1 extends along the upper side of the second substrate 46R and is connected to the first pin B1.

[0163] The second line Lf2 (see the two-dot chain line) is connected to the second branch line Lv2, and is connected to the second pin B2 of the second connector 46Rz via the light source 51 of the body 46R0 belonging to the second local dimming block BL2. A portion of the second line Lf2 extends along the second leg 46R2 and can connect the light source 51 belonging to the second local dimming block BL2. The other portion of the second line Lf2 extends along the upper side of the second substrate 46R and is connected to the second pin B2.

[0164] The third line Lf3 (see dashed line) is connected to the third branch line Lv3, and is connected to the third pin B3 of the second connector 46Rz via the light source 51 of the body 46R0 belonging to the third local dimming block BL3. A portion of the third line Lf3 extends along the third leg 46R3 and can connect the light source 51 belonging to the third local dimming block BL3. The other portion of the third line Lf2 extends along the upper side of the second substrate 46R and can be connected to the third pin B3.

[0165] The power supply VL may be a power supply VLED transmitted from the power supply board P1 to the second connector 46Rz via the LED driver P2 and the expansion board 59 (see FIG. 32). The pins B1, B2, and B3 of the second connector 46Rz are connected to the driver IC of the expansion board 59 (see FIG. 22). The lines Lf1, Lf2, and Lf3 may be referred to as feedback lines Lf1, Lf2, and Lf3.

[0166] The power supply VL is supplied to the first local dimming block BL1 through the first branch line Lv1, and the current passing through the first local dimming block BL1 flows to the driver IC through the first line Lf1 and the first pin B1. Similarly, the power supply VL is supplied to the second and third local dimming blocks BL2 and BL3 through the second and third branch lines Lv2 and Lv3, and the current passing through the second and third local dimming blocks BL2 and BL3 flows to the driver IC through the second and third lines Lf2 and Lf3 and the second and third pins BL2 and BL3. At this time, the driver IC can adjust the amount of current flowing through the light source 51 belonging to each local dimming block BL1, BL2, and BL3 or block the flow of current, thereby adjusting the brightness of the light source 51 belonging to each local dimming block BL1, BL2, and BL3, and as a result, local dimming can be realized.

[0167] In this case, each of the local dimming blocks BL1, BL2, BL3 may include a pair of light sources 51 arranged along each of the legs 46R1, 46R2, 46R3.

[0168] The diodes Z1, Z2, and Z3 are located between the local dimming blocks BL1, BL2, and BL3, and are mounted on a substrate 46. The diodes Z1, Z2, and Z3 may be ESD protection diodes for preventing electrostatic discharge (ESD). The diodes Z1, Z2, and Z3 may be Zener diodes.

[0169] The first diode Z1 is located between the first local dimming block BL1 and the second local dimming block BL2 and is mounted on the body 46R0. That is, the first diode Z1 is located between the first leg 46R1 and the second leg 46R2. One side of the first diode Z1 is connected to the voltage line Lv between the first branch line Lv1 and the second branch line Lv2, and the other side of the first diode Z1 is connected to the first line Lf1.

[0170] The second diode Z2 is located between the second local dimming block BL2 and the third local dimming block BL3 and is mounted on the body 46R0. That is, the second diode Z2 is located between the second leg 46R2 and the third leg 46R3. One side of the second diode Z2 is connected to the voltage line Lv between the second branch line Lv2 and the third branch line Lv3, and the other side of the second diode Z2 is connected to the second line Lf2.

[0171] The third diode Z3 is adjacent to the third local dimming block BL3 and is mounted on the body 46R0 or the third leg 46R3. That is, the third diode Z3 is adjacent to the third leg 46R3. One side of the third diode Z3 is adjacent to the third branch line Lv3 and connected to the voltage line Lv, and the other side of the third diode Z3 is connected to the third line Lf3. The third leg 46R3 may be a mounting leg to which the second connector 46Rz is coupled, and the width (46tm) of the third leg 46R3 may be greater than the widths (46t) of the remaining legs 46R1 and 46R2.

[0172] In this case, the diodes Z1, Z2, and Z3 may be distributed and disposed on the substrate 46. This can minimize the phenomenon that the reflective sheet 60 (see FIG. 2) on the substrate 46 is lifted by the diodes Z1, Z2, and Z3, thereby improving image quality. Also, since the circuits on the substrate 46 are simply disposed, no jumpers are required, and heat dissipation can be smoothly performed. Furthermore, the reflective sheet 60 can have cut lines (see CLb in FIG. 8) that correspond to the diodes Z1, Z2, and Z3 and are opened to the diodes Z1, Z2, and Z3, and in this case, the reflective sheet 60 can be closer to the substrate 46.

[0173] 29, the arrangement of wiring and components on the board 46' can be described using the second board 46R' as an example. The light source 51 is mounted on the first leg 46R1' and the body 46R0' along the length of the first leg 46R1'. The light source 51 is mounted on the second leg 46R2' and the body 46R0' along the length of the second leg 46R2'. The light source 51 is mounted on the third leg 46R3' and the body 46R0' along the length of the third leg 46R3'. Lines Lv, Lf1, Lf2, and Lf3 described below may be circuits.

[0174] The power supply line Lv (see solid line) is connected to the power supply VL of the second connector 46Rz, and is wired to the legs 46R1', 46R2', and 46R3' through the body 46R0'. The power supply line Lv is disposed adjacent to the lower side of the second board 46R' and along the lower side, and the lines Lf1, Lf2, and Lf3 are opposite the power supply line Lv with respect to the light source 51. A part of the lines Lf1, Lf2, and Lf3 is disposed adjacent to the upper side of the second board 46R' and along the upper side. The power supply line Lv is branched by the number of local dimming blocks. The first branch line Lv1 is connected to the light source 51 of the first leg 46R1' belonging to the first local dimming block BL1. The second branch line Lv2 is connected to the light source 51 of the second leg 46R2' belonging to the second local dimming block BL2. The third branch line Lv3 is connected to the light source 51 of the third leg 46R3' belonging to the third local dimming block BL3.

[0175] The first line Lf1 (see dotted line) is connected to the first branch line Lv1, and is connected to the first pin B1 of the second connector 46Rz via the first leg 46R1' belonging to the first local dimming block BL1 and the light source 51 of the body 46R0'. A portion of the first line Lf1 extends along the first leg 46R1' and can connect the light source 51 belonging to the first local dimming block BL1. The other portion of the first line Lf1 extends along the upper side of the second board 46R' and can be connected to the first pin B1.

[0176] The second line Lf2 (see the two-dot chain line) is connected to the second branch line Lv2, and is connected to the second pin B2 of the second connector 46Rz via the second leg 46R2' belonging to the second local dimming block BL2 and the light source 51 of the body 46R0'. A portion of the second line Lf2 extends along the second leg 46R2' and can be connected to the light source 51 belonging to the second local dimming block BL2. The other portion of the second line Lf2 extends along the upper side of the second substrate 46R' and can be connected to the second pin B2.

[0177] The third line Lf3 (see dashed line) is connected to the third branch line Lv3, and is connected to the third pin B3 of the second connector 46Rz via the third leg 46R3' belonging to the third local dimming block BL3 and the light source 51 of the body 46R0'. A portion of the third line Lf3 extends along the third leg 46R3' and is connected to the light source 51 belonging to the third local dimming block BL3. The other portion of the third line Lf3 extends along the upper side of the second board 46R' and is connected to the third pin B3.

[0178] The power supply VL may be a power supply VLED transmitted from the power supply board P1 to the second connector 46Rz via the LED driver P2 and the expansion board 59 (see FIG. 32). The pins B1, B2, and B3 of the second connector 46Rz are connected to the driver IC of the expansion board 59 (see FIG. 22). The lines Lf1, Lf2, and Lf3 may be referred to as feedback lines Lf1, Lf2, and Lf3.

[0179] The power supply VL is supplied to the first local dimming block BL1 through the first branch line Lv1, and the current passing through the first local dimming block BL1 flows to the driver IC through the first line Lf1 and the first pin B1. Similarly, the power supply VL is supplied to the second and third local dimming blocks BL2 and BL3 through the second and third branch lines Lv2 and Lv3, and the current passing through the second and third local dimming blocks BL2 and BL3 flows to the driver IC through the second and third lines Lf2 and Lf3 and the second and third pins B2 and B3. At this time, the driver IC can adjust the amount of current flowing through the light source 51 belonging to each local dimming block BL1, BL2, and BL3 or block the current flow, thereby adjusting the brightness of the light source 51 belonging to each local dimming block BL1, BL2, and BL3, and as a result, local dimming can be realized.

[0180] In this case, each of the local dimming blocks BL1, BL2, and BL3 may include a plurality of light sources 51 arranged along each of the legs 46R1, 46R2, and 46R3. The number of light sources 51 in each of the local dimming blocks BL1, BL2, and BL3 may be two, three, or four or more.

[0181] The diodes Z1, Z2, and Z3 may be located between the local dimming blocks BL1, BL2, and BL3 and may be mounted on a substrate 46'. The diodes Z1, Z2, and Z3 may be ESD protection diodes for preventing electrostatic discharge (ESD). The diodes Z1, Z2, and Z3 may be Zener diodes.

[0182] The first diode Z1 is located between the first local dimming block BL1 and the second local dimming block BL2, and is mounted on the body 46R0'. That is, the first diode Z1 is located between the first leg 46R1' and the second leg 46R2'. One side of the first diode Z1 is connected to the voltage line Lv between the first branch line Lv1 and the second branch line Lv2, and the other side of the first diode Z1 is connected to the first line Lf1.

[0183] The second diode Z2 is located between the second local dimming block BL2 and the third local dimming block BL3, and is mounted on the body 46R0'. That is, the second diode Z2 is located between the second leg 46R2' and the third leg 46R3'. One side of the second diode Z2 is connected to the voltage line Lv between the second branch line Lv2 and the third branch line Lv3, and the other side of the second diode Z2 is connected to the second line Lf2.

[0184] The third diode Z3 is adjacent to the third local beaming block BL3 and is mounted on the body 46R0' or the third leg 46R3'. That is, the third diode Z3 is adjacent to the third leg 46R3'. One side of the third diode Z3 is adjacent to the third branch line Lv3 and connected to the voltage line Lv, and the other side of the third diode Z3 is connected to the third line Lf3. The third leg 46R3' may be a mounting leg to which the second connector 46Rz is coupled, and the width (46tm) of the third leg 46R3' may be larger than the widths (46t) of the remaining legs 46R1' and 46R2'.

[0185] In this case, the diodes Z1, Z2, and Z3 are disposed in a dispersed manner on the substrate 46'. This can minimize the phenomenon in which the reflective sheet 60 (see FIG. 2) on the substrate 46' is lifted by the diodes Z1, Z2, and Z3, thereby improving image quality. In addition, since the circuits on the substrate 46' are simply disposed, no jumpers are required, and heat dissipation can be smoothly performed. Furthermore, the reflective sheet 60 can have cut lines (see CLb in FIG. 8) corresponding to the diodes Z1, Z2, and Z3 and opened to the diodes Z1, Z2, and Z3, in which case the reflective sheet 60 can be closer to the substrate 46'.

[0186] 30, the arrangement of wiring and components on the board 46 can be described by taking the second board 46R as an example. The light source 51 is mounted on the first leg 46R1 and the body 46R0 along the length of the first leg 46R1. The light source 51 is mounted on the second leg 46R2 and the body 46R0 along the length of the second leg 46R2. The light source 51 is mounted on the third leg 46R3 and the body 46R0 along the length of the third leg 46R3. The light source 51 is mounted on the fourth leg 46R4 and the body 46R0 along the length of the fourth leg 46R4. The light source 51 is mounted on the fifth leg 46R5 and the body 46R0 along the length of the fifth leg 46R5. The light source 51 is mounted on the sixth leg 46R6 and the body 46R0 along the length of the sixth leg 46R6. Lines Lv, Lf1, Lf2, and Lf3 described below may be circuits.

[0187] The power supply line Lv (see solid line) is connected to the power supply VL of the second connector 46Rz, and is wired to the legs 46R1, 46R2, 46R3, 46R4, 46R5, and 46R6 through the body 46R0. The power supply line Lv is disposed adjacent to the lower side of the second board 46R and along the lower side, and the lines Lf1, Lf2, and Lf3 are opposite the power supply line Lv with respect to the light source 51. Parts of the lines Lf1, Lf2, and Lf3 are disposed adjacent to the upper side of the second board 46R and along the upper side. The power supply line Lv may be branched by the number of local dimming blocks. The first branch line Lv1 is connected to the light source 51 of the second leg 46R2 belonging to the first local dimming block BL1. The second branch line Lv2 is connected to the light source 51 of the fourth leg 46R4 belonging to the second local dimming block BL2. The third branch line Lv3 is connected to the light source 51 of the sixth leg 46R6 belonging to the third local dimming block BL3.

[0188] The first line Lf1 (see dotted line) is connected to the first branch line Lv1, and is connected to the first pin B1 of the second connector 46Rz via the body 46R0 and the light source 51 of the first leg 46R1 belonging to the first local dimming block BL1. A part of the first line Lf1 extends along the second leg 46R2, the body 46R0 and the first leg 46R1, and can connect the light source 51 belonging to the first local dimming block BL1. The other part of the first line Lf1 extends along the upper side of the second board 46R and is connected to the first pin B1.

[0189] The second line Lf2 (see the two-dot chain line) is connected to the second branch line Lv2, and is connected to the second pin B2 of the second connector 46Rz via the body 46R0 and the light source 51 of the third leg 46R3 belonging to the second local dimming block BL2. A portion of the second line Lf2 extends along the fourth leg 46R4, the body 46R0, and the third leg 46R3, and can connect the light source 51 belonging to the second local dimming block BL2. The other portion of the second line Lf2 extends along the upper side of the second substrate 46R and is connected to the second pin B2.

[0190] The third line Lf3 (see dashed line) is connected to the third branch line Lv3, and is connected to the third pin B3 of the second connector 46Rz via the body 46R0 and the light source 51 of the fifth leg 46R5 belonging to the third local dimming block BL3. A part of the third line Lf3 extends along the sixth leg 46R6, the body 46R0 and the fifth leg 46R5, and can connect the light source 51 belonging to the third local dimming block BL3. The other part of the third line Lf3 extends along the upper side of the second board 46R and is connected to the third pin B3.

[0191] The power supply VL may be a power supply VLED transmitted from the power supply board P1 to the second connector 46Rz via the LED driver P2 and the expansion board 59 (see FIG. 32). The pins B1, B2, and B3 of the second connector 46Rz are connected to the driver IC of the expansion board 59 (see FIG. 22). The lines Lf1, Lf2, and Lf3 may be referred to as feedback lines Lf1, Lf2, and Lf3.

[0192] The power supply VL is supplied to the first local dimming block BL1 through the first branch line Lv1, and the current passing through the first local dimming block BL1 flows to the driver IC through the first line Lf1 and the first pin B1. Similarly, the power supply VL is supplied to the second and third local dimming blocks BL2 and BL3 through the second and third branch lines Lv2 and Lv3, and the current passing through the second and third local dimming blocks BL2 and BL3 flows to the driver IC through the second and third lines Lf2 and Lf3 and the second and third pins B2 and B3. At this time, the driver IC adjusts the amount of current flowing through the light source 51 belonging to each local dimming block BL1, BL2, and BL3 or blocks the flow of current, thereby adjusting the brightness of the light source 51 belonging to each local dimming block BL1, BL2, and BL3, and as a result, local dimming can be realized.

[0193] In this case, each of the local dimming blocks BL1, BL2, BL3 may include four light sources 51 arranged along two legs 46R1, 46R2; 46R3, 46R4; 46R5, 46R6.

[0194] The diodes Z1, Z2, and Z3 are located between the local dimming blocks BL1, BL2, and BL3 and are mounted on a substrate 46. The diodes Z1, Z2, and Z3 may be ESD protection diodes for preventing electrostatic discharge (ESD). The diodes Z1, Z2, and Z3 may be Zener diodes.

[0195] The first diode Z1 is located between the first local dimming block BL1 and the second local dimming block BL2, and is mounted on the body 46R0. That is, the first diode Z1 is located between the second leg 46R2 and the third leg 46R3. One side of the first diode Z1 is connected to the voltage line Lv between the first branch line Lv1 and the second branch line Lv2, and the other side of the first diode Z1 is connected to the first line Lf1.

[0196] The second diode Z2 is located between the second local dimming block BL2 and the third local dimming block BL3 and is mounted on the body 46R0. That is, the second diode Z2 is located between the fourth leg 46R4 and the fifth leg 46R5. One side of the second diode Z2 is connected to the voltage line Lv between the second branch line Lv2 and the third branch line Lv3, and the other side of the second diode Z2 is connected to the second line Lf2.

[0197] The third diode Z3 is adjacent to the third local dimming block BL3 and is mounted on the body 46R0 or the sixth leg 46R6. That is, the third diode Z3 is adjacent to the sixth leg 46R6. One side of the third diode Z3 is adjacent to the third branch line Lv3 and connected to the voltage line Lv, and the other side of the third diode Z3 is connected to the third line Lf3. The sixth leg 46R6 may be a mounting leg to which the second connector 46Rz is coupled, and the width (46tm) of the sixth leg 46R6 may be greater than the widths (46t) of the remaining legs 46R1, 46R2, 46R3, 46R4, and 46R5.

[0198] In this case, the diodes Z1, Z2, and Z3 may be distributed and disposed on the substrate 46. This can minimize the phenomenon that the reflective sheet 60 (see FIG. 2) on the substrate 46 is lifted by the diodes Z1, Z2, and Z3, and as a result, image quality can be improved. In addition, since the circuits on the substrate 46 are simply disposed, jumpers are not required and heat dissipation can be smoothly performed. Furthermore, the reflective sheet 60 can have cut lines (see CLb in FIG. 8) that correspond to the diodes Z1, Z2, and Z3 and are opened to the diodes Z1, Z2, and Z3, and in this case, the reflective sheet 60 can be closer to the substrate 46.

[0199] 31, the arrangement of wiring and components on the board 46' can be described by taking the second board 46R' as an example. The light source 51 is mounted on the first leg 46R1' and the body 46R0' along the length of the first leg 46R1'. The light source 51 is mounted on the second leg 46R2' and the body 46R0' along the length of the second leg 46R2'. The light source 51 is mounted on the third leg 46R3' and the body 46R0' along the length of the third leg 46R3'. The light source 51 is mounted on the fourth leg 46R4' and the body 46R0' along the length of the fourth leg 46R4'. The light source 51 is mounted on the fifth leg 46R5' and the body 46R0' along the length of the fifth leg 46R5'. The light source 51 is attached to the sixth leg 46R6' and the body 46R0' along the length direction of the sixth leg 46R6'. Lines Lv, Lf1, Lf2, and Lf3 described below may be circuits.

[0200] The power supply line Lv (see solid line) is connected to the power supply VL of the second connector 46Rz, and is wired to the legs 46R1', 46R2', 46R3', 46R4', 46R5', and 46R6' via the body 46R0'. The power supply line Lv is disposed adjacent to the lower side of the second board 46R' along the lower side, and the lines Lf1, Lf2, and Lf3 can be opposed to the power supply line Lv with respect to the light source 51. Parts of the lines Lf1, Lf2, and Lf3 are disposed adjacent to the upper side of the second board 46R' along the upper side. The power supply line Lv is branched by the number of local dimming blocks. The first branch line Lv1 is connected to the light source 51 of the second leg 46R2' belonging to the first local dimming block BL1. The second branch line Lv2 is connected to the light source 51 of the fourth leg 46R4' belonging to the second local dimming block BL2. The third branch line Lv3 is connected to the light source 51 of the sixth leg 46R6' which belongs to the third local dimming block BL3.

[0201] The first line Lf1 (see dotted line) is connected to the first branch line Lv1, and is connected to the first pin B1 of the second connector 46Rz via the second leg 46R2', the body 46R0', and the light source 51 of the first leg 46R1' belonging to the first local dimming block BL1. A portion of the first line Lf1 extends along the second leg 46R2', the body 46R0', and the first leg 46R1', and can connect the light source 51 belonging to the first local dimming block BL1. The other portion of the first line Lf1 extends along the upper side of the second board 46R' and is connected to the first pin B1.

[0202] The second line Lf2 (see the two-dot chain line) is connected to the second branch line Lv2, and is connected to the second pin B2 of the second connector 46Rz via the fourth leg 46R4', the body 46R0', and the light source 51 of the third leg 46R3' belonging to the second local dimming block BL2. A portion of the second line Lf2 extends along the fourth leg 46R4', the body 46R0', and the third leg 46R3', and can connect the light source 51 belonging to the second local dimming block BL2. The other portion of the second line Lf2 may extend along the upper side of the second board 46R' and is connected to the second pin B2.

[0203] The third line Lf3 (see dashed line) is connected to the third branch line Lv3 and is connected to the third pin B3 of the second connector 46Rz via the sixth leg 46R6', the body 46R0', and the light source 51 of the fifth leg 46R5' belonging to the third local dimming block BL3. A portion of the third line Lf3 extends along the sixth leg 46R6', the body 46R0', and the fifth leg 46R5' and can connect the light source 51 belonging to the third local dimming block BL3. The other portion of the third line Lf3 extends along the upper side of the second board 46R' and is connected to the third pin B3.

[0204] The power supply VL may be a power supply VLED transmitted from the power supply board P1 to the second connector 46Rz via the LED driver P2 and the expansion board 59 (see FIG. 32). The pins B1, B2, and B3 of the second connector 46Rz are connected to the driver IC of the expansion board 59 (see FIG. 22). The lines Lf1, Lf2, and Lf3 may be referred to as feedback lines Lf1, Lf2, and Lf3.

[0205] The power supply VL is supplied to the first local dimming block BL1 through the first branch line Lv1, and the current passing through the first local dimming block BL1 flows to the driver IC through the first line Lf1 and the first pin B1. Similarly, the power supply VL is supplied to the second and third local dimming blocks BL2 and BL3 through the second and third branch lines Lv2 and Lv3, and the current passing through the second and third local dimming blocks BL2 and BL3 flows to the driver IC through the second and third lines Lf2 and Lf3 and the second and third pins B2 and B3. At this time, the driver IC can adjust the brightness of the light source 51 belonging to each local dimming block BL1, BL2, and BL3 by adjusting the amount of current flowing through the light source 51 belonging to each local dimming block BL1, BL2, and BL3 or by blocking the flow of current, thereby realizing local dimming.

[0206] In this case, each of the local dimming blocks BL1, BL2, and BL3 may include M light sources 51 arranged along N legs 46R1', 46R2', 46R3', 46R4', 46R5', and 46R6', where N is a natural number of 2 or more, and M is the number of light sources 51 arranged along each leg multiplied by N. For example, each of the local dimming blocks BL1, BL2, and BL3 may include six light sources 51 arranged along two legs 46R1', 46R2'; 46R3', 46R4'; 46R5', and 46R6', where three light sources are arranged along each leg. As another example, each of the local dimming blocks BL1, BL2, BL3 may include nine light sources 51 arranged along three legs 46R1', 46R2', 46R3'; 46R4', 46R5', 46R6', where three light sources are arranged along each leg.

[0207] The diodes Z1, Z2, and Z3 are located between the local dimming blocks BL1, BL2, and BL3 and are mounted on a substrate 46'. The diodes Z1, Z2, and Z3 may be ESD protection diodes for preventing electrostatic discharge (ESD). The diodes Z1, Z2, and Z3 may be Zener diodes.

[0208] The first diode Z1 is located between the first local dimming block BL1 and the second local dimming block BL2, and is mounted on the body 46R0'. That is, the first diode Z1 is located between the second leg 46R2' and the third leg 46R3'. One side of the first diode Z1 is connected to the voltage line Lv between the first branch line Lv1 and the second branch line Lv2, and the other side of the first diode Z1 is connected to the first line Lf1.

[0209] The second diode Z2 is located between the second local dimming block BL2 and the third local dimming block BL3, and is mounted on the body 46R0'. That is, the second diode Z2 is located between the fourth leg 46R4' and the fifth leg 46R5'. One side of the second diode Z2 is connected to the voltage line Lv between the second branch line Lv2 and the third branch line Lv3, and the other side of the second diode Z2 is connected to the second line Lf2.

[0210] The third diode Z3 is adjacent to the third local beaming block BL3 and is mounted on the body 46R0' or the sixth leg 46R6'. That is, the third diode Z3 is adjacent to the sixth leg 46R6'. One side of the third diode Z3 is adjacent to the third branch line Lv3 and connected to the voltage line Lv, and the other side of the third diode Z3 is connected to the third line Lf3. The sixth leg 46R6' may be a mounting leg to which the second connector 46Rz is coupled, and the width (46tm) of the sixth leg 46R6' may be larger than the widths (46t) of the remaining legs 46R1', 46R2', 46R3', 46R4', and 46R5'.

[0211] In this case, the diodes Z1, Z2, and Z3 are distributed and disposed on the substrate 46'. This can minimize the phenomenon that the reflective sheet 60 (see FIG. 2) on the substrate 46' is lifted by the diodes Z1, Z2, and Z3, and as a result, image quality can be improved. Also, since the circuits on the substrate 46' are simply disposed, jumpers are not required and heat dissipation can be smoothly performed. Furthermore, the reflective sheet 60 can have cut lines (see CLb in FIG. 8) that correspond to the diodes Z1, Z2, and Z3 and are opened to the diodes Z1, Z2, and Z3, and in this case, the reflective sheet 60 can be closer to the substrate 46'.

[0212] Referring to FIG. 32, the LED driver P2 is connected to a connector of the expansion board 59 through a cable Fi. The cable Fi is connected to the connector of the expansion board 59 through a hole 81i formed in a flat plate portion 81 of a frame 80. The number of cables Fi may be the same as the number of expansion boards 59. For example, one cable Fi is connected to one expansion board 59 of FIG. 22 (or FIGS. 33 to 38 described later). The cable Fi may be an FFC (Flexible Flat Cable). The MCU (Micro Controller Unit) of the LED driver P2 converts (processes) data related to the brightness of the plurality of light sources 51 on the plurality of boards 43; 44; 45; 46; 46' transmitted from the main board P3 and provides the converted data to the driver IC of the expansion board 59 through the cable Fi. The driver ICs are connected to the substrates 43; 44; 45; 46' via connectors 43Lz, 43Rz; 44Lz, 44Rz; 45Lz, 45Rz; 46Lz, 46Rz, and can adjust the brightness of each local dimming block by adjusting the amount of current flowing through each local dimming block on each substrate or by blocking the flow of current.

[0213] This allows the LED driver P2 to be easily connected to multiple boards via cables Fi and expansion boards 59.

[0214] 33 to 35, the expansion board 59 extends in a vertical direction. The first substrates 46L are located on the left side of the expansion board 59, and the second substrates 46R are located on the right side of the expansion board 59. The longitudinal axis of the expansion board 59 may be parallel to a vertical line passing through the center of the display panel 10 (see FIG. 2). The area in which the first substrates 46L are arranged corresponds to the area of ​​the display panel 10 (see FIG. 2) located to the left of the vertical line. The area in which the second substrates 46R are arranged corresponds to the area of ​​the display panel 10 (see FIG. 2) located to the right of the vertical line.

[0215] 33, the legs 46Ln of each of the multiple first substrates 46L face upward relative to the body 46L0, and the legs 46Rn of each of the multiple second substrates 46R face downward relative to the body 46R0. Alternatively, the legs 46Ln of each of the multiple first substrates 46L face downward relative to the body 46L0, and the legs 46Rn of each of the multiple second substrates 46R face upward relative to the body 46R0. The multiple first substrates 46L and the multiple second substrates 46R may be point-symmetric with respect to the center point of the extension board 59.

[0216] 34, the legs 46Ln of each of the first substrates (46L) face downward relative to the body 46L0, and the legs 46Rn of each of the second substrates 46R face downward relative to the body 46R0. The first substrates 46L and the second substrates 46R may be symmetrical with respect to the extension board 59.

[0217] 35, the legs 46Ln of each of the first substrates 46L face upward relative to the body 46L0, and the legs 46Rn of each of the second substrates 46R face upward relative to the body 46R0. The first substrates 46L and the second substrates 46R may be symmetrical with respect to the extension board 59.

[0218] 36 to 38, the expansion board 59 extends in the horizontal direction. The first substrates 46U are located on the upper side of the expansion board 59, and the second substrates 46D are located on the lower side of the expansion board 59. The longitudinal axis of the expansion board 59 is parallel to a horizontal line passing through the center of the display panel 10 (see FIG. 2). The area in which the first substrates 46U are arranged corresponds to the area of ​​the display panel 10 (see FIG. 2) located above the horizontal line. The area in which the second substrates 46D are arranged corresponds to the area of ​​the display panel 10 (see FIG. 2) located below the horizontal line.

[0219] 36, the legs 46Un of each of the multiple first substrates 46U face the right side with respect to the body 46U0, and the legs 46Dn of each of the multiple second substrates 46D face the left side with respect to the body 46D0. Alternatively, the legs 46Un of each of the multiple first substrates 46U face the left side with respect to the body 46U0, and the legs 46Dn of each of the multiple second substrates 46D face the right side with respect to the body 46D0. The multiple first substrates 46U and the multiple second substrates 46D may be point-symmetric with respect to the center point of the extension board 59.

[0220] 37, the legs 46Un of each of the first substrates 46U face rightward relative to the body 46U0, and the legs 46Dn of each of the second substrates 46D face rightward relative to the body 46D0. The first substrates 46U and the second substrates 46D may be symmetrical with respect to the extension board 59.

[0221] 38, the legs 46Un of each of the first substrates 46U face leftward relative to the body 46U0, and the legs 46Dn of each of the second substrates 46D face leftward relative to the body 46D0. The first substrates 46U and the second substrates 46D may be symmetrical with respect to the extension board 59.

[0222] 39 and 40, the rear surface of the substrate 46 is bonded to the front surface of the frame 80 or the heat sink 83 by an adhesive sheet 46AD. The adhesive sheet 46AD may be a double-sided tape. The rear surface of the reflective sheet 60 is bonded to the front surface of the substrate 46 by an adhesive sheet 60AD. The adhesive sheet 60AD may be a double-sided tape. The light source 51 on the substrate 46 may be located in the hole 60ADh of the adhesive sheet 60AD and the hole 601 of the reflective sheet 60.

[0223] Light from the light source 51 is provided to the display panel 10 through the diffusion plate 31 and the optical sheet 32. The lens 53 covers the light source 51, is coupled to the front surface of the substrate 46, and is located in the hole 60ADh, 601. The lens 53 may include at least one of silicon, polymethylmethacrylate (PMMA), or polycarbonate (PC). The light from the light source 51 can be refracted or reflected by the lens 53 to spread to a wider directivity angle than the light source 51. The reflective sheet 60 can reflect the light provided from the light source 51 or reflected from the diffusion plate 31 forward.

[0224] Meanwhile, the side frame 20 may include a first part 21, a second part 22, a third part 23, and a fourth part 24 (see FIG. 2). The first part 21 extends along the upper side of the display panel 10, and the second part 22 extends along the lower side of the display panel 10. The third part 23 extends along the left side of the display panel 10, and the fourth part 24 extends along the right side of the display panel 10. Each of the first to fourth parts 21, 22, 23, and 24 may include a vertical part and a horizontal part. The vertical part 21V of the first part 21 may cover the upper side of the display panel 10 and the upper side of the frame 80. The horizontal part 21H of the first part 21 intersects with the vertical part 21V and is located between the display panel 10 and the optical sheet 32. The front pad FP1 is coupled to the rear surface of the display panel 10 and the front surface of the horizontal part 21H. The rear pad RP1 is coupled to the rear surface of the horizontal part 21H and the front surface of the optical sheet 32. This enables the side frame 20 to protect the edges of the display panel 10 .

[0225] 1 to 40, a display device according to one aspect of the present disclosure may include: a display panel; a frame located behind the display panel; a substrate located between the display panel and the frame and coupled to the frame; and a plurality of light sources arranged on the substrate, the substrate may include: a body extending long; and legs protruding from one long side of the body and spaced apart from each other along the one long side, the plurality of light sources may include: a first row of light sources located on the legs; and a second row of light sources located on the legs or the body and spaced apart from the first row, the first and second rows of light sources may be arranged along columns parallel to the legs, and at least one column may be bundled with a local dimming block.

[0226] The local dimming block may be multiple, and the display device may further include: multiple diodes located between the multiple local dimming blocks and located on the substrate.

[0227] The diode may be an electrostatic discharge prevention diode.

[0228] The plurality of diodes may be mounted on the body.

[0229] The display device may further include: a reflective sheet located on the substrate and having holes in which the plurality of light sources are located, the reflective sheet may include: a plurality of cut lines facing the plurality of diodes.

[0230] The display device may further include: a connector coupled to the substrate and having a power source and a plurality of pins, the substrate may include: a power line connected to the power source and connected to each of the plurality of local dimming blocks; and a plurality of lines opposite the power line to the plurality of light sources, each of the plurality of lines connecting a respective light source of the plurality of local dimming blocks and connected to each of the plurality of pins.

[0231] The power lines are disposed along the legs adjacent to terminal ends of the legs, and some of the lines are disposed along the other long side of the body adjacent to the other long side.

[0232] The leg may include a mounting leg located at one end of the body in a longitudinal direction and to which the connector is coupled, and the width of the mounting leg may be the maximum of the widths of the legs.

[0233] The plurality of light sources may further include at least one row of light sources located between the first row of light sources and the second row of light sources.

[0234] The length of each of the legs may be less than the length of the body.

[0235] The substrate may include a plurality of substrates spaced apart from one another along the length of the leg, the display device may further include an extension board connecting the plurality of substrates, and the plurality of substrates may have the same shape as one another.

[0236] The expansion board extends in a longitudinal direction of the leg, and the plurality of substrates may include a plurality of first substrates coupled to a first long side of the expansion board; and a plurality of second substrates coupled to a second long side of the expansion board, and the plurality of first substrates and the plurality of second substrates are point-symmetric with respect to a center point of the expansion board or are axisymmetric with respect to the expansion board.

[0237] The display device may further include: an LED driver coupled to the frame; and a cable connecting the LED driver and the expansion board.

[0238] The display device may further include: a plurality of lenses covering the plurality of light sources; and a reflective sheet located on the substrate and having a plurality of holes in which the plurality of lenses are located.

[0239] The reflective sheet may cover the body, the legs, and the groove between the legs.

[0240] The above-mentioned embodiments or other embodiments of the present disclosure are not mutually exclusive or distinct. The above-mentioned embodiments or other embodiments of the present disclosure may be used together or combined with each other in their respective configurations or functions.

[0241] For example, it means that configuration A described in a particular embodiment and / or drawing can be combined with configuration B described in another embodiment and / or drawing, that is, even if the combination between the components is not directly described, it means that the combination is possible unless it is described that the combination is not possible.

[0242] The above detailed description should not be construed as limiting in all respects, but should be considered as illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are included in the scope of the present invention.

Claims

1. 1. A display device, comprising: Display panel; a frame positioned behind the display panel; a substrate positioned between the display panel and the frame and coupled to the frame; and a plurality of light sources located on the substrate; The substrate comprises: an elongated body; and legs protruding from one side of the body and spaced apart from one another along the one side; The plurality of light sources include: a first row of light sources located on said leg; and a second row of light sources located on the legs or the body and spaced apart from the first row; The first row of light sources and the second row of light sources are arranged in parallel to the legs and are bundled together in groups of two or more in a local dimming block; A display device, wherein the local dimming block comprises at least one light source from each of the first row of light sources and the second row of light sources.

2. The local dimming block is one of a plurality of local dimming blocks, The display device of claim 1 , further comprising a plurality of diodes located on the substrate between the plurality of local dimming blocks.

3. The display device of claim 2 , wherein the diode prevents electrostatic discharge.

4. The display device of claim 2 , wherein the plurality of diodes are mounted on a body of the substrate.

5. a reflector sheet disposed on the substrate and having holes in which the light sources are disposed; The display device of claim 2 , wherein the reflective sheet comprises a plurality of cut lines corresponding to the plurality of diodes.

6. a connector coupled to the substrate, the connector comprising a power source and a plurality of pins; The substrate is a power supply line connecting the power supply and connecting each of the plurality of local dimming blocks; and a plurality of lines positioned opposite the power supply lines with respect to the plurality of light sources; The display device of claim 2 , wherein each of the plurality of lines connects the plurality of light sources of each of the plurality of local dimming blocks and is connected to each of the plurality of pins.

7. The power supply line is disposed along the leg adjacent the distal end of the leg; The display device of claim 6 , wherein some of the lines are disposed along another side of the body.

8. the legs include mounting legs located at ends of the base and to which the connector is coupled; The display device of claim 6 , wherein the width of the mounting legs is the maximum width of the legs.

9. 10. The display device of claim 1, wherein the plurality of light sources further comprises at least one row of light sources located between the first row of light sources and the second row of light sources.

10. The display device of claim 1 , wherein a length of each of the legs is less than a length of the body.

11. the substrate is one of a plurality of substrates spaced apart along the length of the leg; The display device further includes an extension board connecting the plurality of substrates, The display device of claim 1 , wherein the substrates are of the same shape.

12. The extension board extends in a longitudinal direction of the leg, The plurality of substrates include a plurality of first substrates coupled to a first long side of the expansion board; and a plurality of second substrates coupled to a second long side of the expansion board; The plurality of first substrates and the plurality of second substrates include or The display device of claim 11 , which is symmetrical about the expansion board.

13. an LED driver coupled to the frame; and The display device of claim 11, further comprising: a cable connecting the LED driver and the expansion board.

14. A plurality of lenses covering the plurality of light sources; and 10. The display device of claim 1, further comprising: a reflective sheet overlying the substrate and comprising a plurality of holes in which the lenses are located.

15. The display device of claim 14 , wherein the reflective sheet covers the body, the legs, and the groove between the legs.

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