Display device

Abstract

The invention discloses a display device. A display device of the present invention may include: a display panel; a frame located behind the display panel; the substrate is positioned between the display panel and the frame and is combined with the frame; a plurality of light sources disposed on the substrate; and a reflective sheet covering the substrate and having a plurality of holes corresponding to the plurality of light sources, the reflective sheet includes: a first reflective sheet having a protruding portion and a plurality of first holes of the plurality of holes, the protruding portion protruding from one side of the first reflective sheet, the protruding portion including a portion of the plurality of first holes; a second reflective sheet having a plurality of second holes among the plurality of holes; the third reflection sheet is provided with a plurality of third holes in the plurality of holes; the fourth reflector plate is provided with a plurality of fourth holes; the second reflector plate is the same as the first reflector plate without the protruding part.

Description

Technical Field

[0001] The present invention relates to a display device. Background Art

[0002] With the development of the information society, the requirements for display devices have also increased in various forms. Correspondingly, in recent years, various display devices such as liquid crystal display devices (Liquid Crystal Display Device; LCD), plasma display panels (Plasma Display Panel; PDP), electroluminescent displays (Electro luminescent Display; ELD), vacuum fluorescent displays (Vacuum Fluorescent Display; VFD) have been developed and used.

[0003] Among them, the LCD panel may have a TFT substrate and a color filter substrate facing each other with a liquid crystal layer therebetween, and the LCD panel may display an image using light provided from a backlight unit.

[0004] The reflective sheet can cover the LED substrate and reflect the light of the LED toward the display panel. Although such a reflective sheet can be divided into a plurality of pieces corresponding to the size of the display panel, there is a difficulty in that a mold needs to be separately provided for each reflective sheet. Summary of the invention

[0005] Problem that the invention aims to solve

[0006] The present invention aims to solve the above-mentioned problems and other problems.

[0007] Another object is to provide a structure for sharing a plurality of reflective sheets.

[0008] Still another object is to provide a structure that enables a mold for manufacturing a plurality of reflection sheets to be shared even if the number of the plurality of light sources on the substrate is an odd number.

[0009] Another object is to provide a structure capable of preventing a phenomenon in which any one of the reflection sheets is lifted up from another reflection sheet due to a plurality of reflection sheets being stacked on each other.

[0010] Still another object is to provide various examples of a protruding portion that is cut out for sharing of a plurality of reflection sheets.

[0011] Means used to solve problems

[0012] According to one aspect of the present invention in order to achieve the above or other purposes, 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 combined with the frame; a plurality of light sources located on the substrate; and a reflective sheet covering the substrate and having a plurality of holes the same number as the plurality of light sources; the reflective sheet may include: a first reflective sheet having a plurality of first holes that are parts of the plurality of holes, the first reflective sheet including a protrusion that protrudes from one side of the first reflective sheet and has a part of the plurality of first holes; and a second reflective sheet having a plurality of second holes that are parts of the plurality of holes; the second reflective sheet may be the same as the first reflective sheet with the protrusion cut off.

[0013] Effects of the Invention

[0014] The effects of the display device according to the present invention are described as follows.

[0015] According to at least one of the plural embodiments of the present invention, a common structure for a plurality of reflection sheets can be provided.

[0016] According to at least one of the embodiments of the present invention, it is possible to provide a structure that allows a mold for manufacturing a plurality of reflection sheets to be shared even if the number of the plurality of light sources on the substrate is an odd number.

[0017] According to at least one of the plural embodiments of the present invention, it is possible to provide a structure capable of preventing a phenomenon in which a plurality of reflecting sheets are stacked on each other and any one of them is lifted from another.

[0018] According to at least one of the plural embodiments of the present invention, various examples can be provided for the protrusions that are cut out for the purpose of sharing the plural reflection sheets.

[0019] The additional scope of the applicability of the present invention can be clearly seen from the following detailed description. However, since those skilled in the art can clearly understand the various changes and modifications within the thought and scope of the present invention, it should be understood that the detailed description and specific embodiments such as the preferred embodiments of the present invention are provided only as examples. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figures 1 to 29 are diagrams showing a plurality of examples of display devices according to embodiments of the present invention. DETAILED DESCRIPTION

[0021] Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the drawings. The same or similar components are denoted by the same reference numerals regardless of the figure numbers, and repeated description thereof will be omitted.

[0022] The suffixes "module" and "unit" of the structural elements used in the following description are only given or used interchangeably for the convenience of writing the description, and they themselves do not have mutually distinguishable meanings or functions.

[0023] In addition, in the process of describing the embodiments disclosed in this specification, when it is determined that the specific description of the relevant known technology will confuse the gist of the embodiments disclosed in this specification, the detailed description of the known technology is omitted. In addition, the drawings are only used to help understand the embodiments disclosed in this specification, and the technical ideas disclosed in this specification are not limited to the drawings, but should be understood to include all changes, equivalents and substitutes within the scope of the ideas and technologies of the present invention.

[0024] Terms including ordinal numbers such as first, second, etc. can be used to describe various structural elements, but these structural elements are not limited to these terms. These terms are used only to distinguish one structural element from another structural element.

[0025] When a certain component is mentioned to be "coupled" or "connected" to another component, it can be understood that it is directly coupled or connected to the other component, but it should be understood that other components may exist between them. On the contrary, when a certain component is mentioned to be "directly coupled" or "directly connected" to another component, it should be understood that no other components exist between them.

[0026] Unless the context clearly indicates otherwise, an expression in the singular includes an expression in the plural.

[0027] In the present application, the terms "including" or "having" etc. should be understood as intending to indicate the existence of the features, numbers, steps, actions, structural elements, parts or their combinations disclosed in the present specification, but not intending to pre-exclude the existence or additional possibilities of one or more other features, numbers, steps, actions, structural elements, parts or their combinations.

[0028] The directions of upper U, lower D, left Le, right Ri, front F and rear R shown in the drawings are only for the convenience of explanation, and the technical ideas recorded in this application are not limited thereto.

[0029] Reference Figure 1 , the display device 1 may include a display panel 10. The display panel 10 may display an image.

[0030] The display device 1 may include a first long side LS1, a second long side LS2 opposite to 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 to the first short side SS1. On the other hand, for ease of description, the lengths of the first long side LS1 and the second long side LS2 are shown to be greater than the lengths of the first short side SS1 and the second short side SS2 and are described, but the lengths of the first long side LS1 and the second long side LS2 may also be substantially the same as the lengths of the first short side SS1 and the second short side SS2.

[0031] The direction parallel to the plurality of 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.

[0032] The direction parallel to the plurality of short sides SS1, SS2 of the display device 1 may be referred to as an up-down direction or a second direction DR2. The first long side LS1 side may be referred to as an upper side U, y, and the second long side LS2 side may be referred to as a lower side D.

[0033] The direction perpendicular to the plurality of long sides LS1, LS2 and the plurality of short sides SS1, SS2 of the display device 1 may be referred to as the front-rear direction or the third direction DR3. The direction in which the display panel 10 displays an image may be referred to as the front F, z, and the opposite direction may be referred to as the rear R.

[0034] 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 the edges of the display device 1. In addition, the plurality of positions where the first long side LS1, the second long side LS2, the first short side SS1, and the second short side SS2 contact each other may be referred to as a plurality of corners. The position where the first short side SS1 contacts the first long side LS1 may be referred to as the first corner C1. The position where the first long side LS1 contacts the second short side SS2 may be referred to as the second corner C2. The position where the second short side SS2 contacts the second long side LS2 may be referred to as the third corner C3. The position where the second long side LS2 contacts the first short side SS1 may be referred to as the fourth corner C4.

[0035] Reference Figure 1 and Figure 2, the display device 1 may include a display panel 10 , a side frame 20 , a backlight unit, a frame 80 , and a back cover 90 .

[0036] The display panel 10 may form the front side of the display device 1 and may display an image. The display panel 10 may display an image by outputting RGB (Red or Green or Blue) according to a timing of each pixel of a plurality of pixels. The display panel 10 may be divided into an active area (active area) for displaying an image and a de-active area (de-active area) for not displaying an image. The display panel 10 may include a front substrate (front substrate) and a rear substrate (rear substrate) that are opposite to each other with a liquid crystal layer in between. The display panel 10 may be referred to as an LCD panel 10.

[0037] The front substrate may include a plurality of pixels consisting of red sub-pixels, green sub-pixels, and blue sub-pixels. The front substrate may output light corresponding to red, green, or blue according to a control signal.

[0038] The back substrate may include a switching device. The back substrate may switch pixel electrodes. For example, the pixel electrodes may change the molecular arrangement of the liquid crystal layer according to a control signal input from the outside. The liquid crystal layer may include a plurality of liquid crystal molecules. The arrangement of the plurality of liquid crystal molecules may change correspondingly to the voltage difference generated between the pixel electrode and the common electrode. The liquid crystal layer may transmit light provided from the backlight unit to the front substrate or block it.

[0039] The side frame 20 may extend along the periphery of the display panel 10. The side frame 20 may cover the periphery of the display panel 10. For example, the side frame 20 may include a plastic or metal material. The side frame 20 may be referred to as a guide panel 20.

[0040] The backlight unit may be located behind the display panel 10. The backlight unit may be located in front of the frame 80 and may be combined with the frame 80. The backlight unit may be driven in an overall driving manner or in a local driving manner such as local dimming, impulse, etc. The backlight unit may include: a plurality of light sources providing light to the front; a substrate 40 on which the plurality of light sources are mounted; a plurality of lenses 53 covering the plurality of light sources; a reflective sheet 60 covering the front of the substrate 40; and an optical portion 30 located in front of the reflective sheet 60. On the other hand, a reflective material may also be coated on the front of the substrate 40.

[0041] The optical part 30 may be opposite to the display panel 10 via the side frame 20. The optical part 30 may uniformly transfer the light of the light source to the display panel 10. The optical part 30 may include a diffusion plate 31 and an optical sheet 32.

[0042] The diffuser 31 may be located between the reflective sheet 60 and the optical sheet 32. The diffuser 31 may diffuse the light from the light source. In addition, an air gap may be formed between the reflective sheet 60 and the diffuser 31. The air gap may function as a buffer, and the light from the light source may be widely diffused under the action of the air gap. The support member 39 may be located between the reflective sheet 60 and the diffuser 31, and the support member 39 may be combined with the reflective sheet 60 and may support the diffuser 31.

[0043] The optical sheet 32 ​​may be adjacent to or in contact with the front surface of the diffuser 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 from each other, and the plurality of sheets may be bonded or adhered to each other. For example, the first optical sheet 32a may be a diffuser sheet, and the second optical sheet 32b may be a prism sheet.

[0044] The frame 80 may be located behind the backlight unit. The display panel 10, the side frame 20, and the backlight unit may be combined with the frame 80. The frame 80 may support the plurality of components of the display device described above and the plurality of components of the display device described later. For example, the frame 80 may include a metal material such as an aluminum alloy. The frame 80 may be referred to as a main frame 80, a module cover 80, or a cover bottom 80.

[0045] The rear cover 90 may cover the rear of the frame 80 and may be combined with the frame 80. For example, the rear cover 90 may be an injection molded product of a resin material. As another example, the rear cover 90 may include a metal material.

[0046] Reference Figure 3 The flat plate portion 81 may define a front surface of the frame 80. A plurality of frame holes 81a, 81b, 81c, 81d, 81e, 81f, 81g, 81h, 81i may be formed in the flat plate portion 81.

[0047] Reference Figure 3 and Figure 4The heat sink 83 may cover the front surface of the flat plate portion 81 and may be combined with the flat plate portion 81. A plurality of heat sink holes 83a, 83b, 83c, 83d, 83e, 83f, 83g, 83h, 83i may be formed in the heat sink 83 and may be aligned with the plurality of frame holes 81a, 81b, 81c, 81d, 81e, 81f, 81g, 81h, 81i. The heat sink 83 may also be omitted.

[0048] Reference Figure 5 and Figure 6 , the substrate 41 may be combined with the front side of the frame 80 or the heat sink 83. The substrate 41 may be a PCB (Printed Circuit Board). For example, the substrate 41 may include at least one of polyethylene terephthalate (PET) or glass or polycarbonate (PC) or silicon. The substrate 41 may be composed of a plurality of bars spaced apart from each other. The substrate 41 may be referred to as the substrate 40.

[0049] The light source 51 may be mounted on the front side of the substrate 41. A plurality of light sources 51 may be arranged along each bar 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 configured as a colored LED or a white LED that emits at least one color such as red, green, blue, etc. The light source 51 may be a mini-LED. An electrode pattern may be formed on the substrate 41, and an adapter (connector) and the light source 51 may be connected. A power board may supply power to the light source 51 through the substrate 41. For example, the electrode pattern may be a carbon nanotube electrode pattern.

[0050] Reference Figure 7 and Figure 8 , the substrate 42 may be combined with the front side 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) or glass or polycarbonate (PC) or silicon. The substrate 42 may have a plate shape. The substrate 42 may be referred to as the substrate 40.

[0051] At least one substrate 42 may be provided. Each of the plurality of substrates 42a, 42b, 42c, 42d, 42e, 42f, 42g, 42h, 42i may cover each of the plurality of regions 83A1, 83A2, 83A3, 83A4, 83A5, 83A6, 83A7, 83A8, 83A9 of the heat sink 83, respectively.

[0052] The light source 51 may be mounted on the front side of the substrate 42. A plurality of light sources 51 may be arranged in a matrix on the front side of the substrate 42. The light source 51 may be an LED (Light Emitting Diode) chip or an LED package. The light source 51 may be configured as a colored LED or a white LED that emits at least one color such as red, green, blue, etc. The light source 51 may be a mini LED. An electrode pattern may be formed on the substrate 42, and an adapter (connector) and the light source 51 may be connected. A power board may supply power to the light source 51 through the substrate 42. For example, the electrode pattern may be a carbon nanotube electrode pattern.

[0053] Reference Fig. 9 and Fig.10 , the substrate 43 may be combined with the front side of the frame 80 or 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) or glass or polycarbonate (PC) or silicon. The substrate 43 may have a fork shape. The substrate 43 may be referred to as the substrate 40.

[0054] The substrate 43 may include a main body 431 and a leg 432. The main body 431 may extend long. The branch 432 may extend from one long side of the main body 431 toward a direction intersecting the main body 431. The length direction of the main body 431 may be defined in a vertical direction, and the length direction of the branch 432 may be defined in a horizontal direction. The width 43La of the branch main body 431 may be less than the length 43Ha of the main body 431, and the width 43La of the branch main body 431 may be less than the length 43Lb of the branch 432 or be close to the length 43Lb of the branch 432. The branches 432 may be spaced apart from each other in the length direction of the main body 431. The interval Gb between the branches 432 may be the same as the width 43Hb of the branch 432.

[0055] The substrate 43 may be provided as at least one. Each of the plurality of substrates 43 may be respectively combined or attached to the plurality of regions 83A1, 83A2, 83A3, 83A4, 83A5, 83A6, 83A7, 83A8, 83A9 of the heat sink 83 (see Figure 4 ) of each one.

[0056] The light source 51 can be installed on the front side of the substrate 43. A plurality of light sources 51 can be arranged in a matrix form on the front sides of the main body 431 and the branch 432. The light source 51 can be an LED (Light Emitting Diode) chip or an LED package. The light source 51 can include a colored LED or a white LED that emits at least one color among colors such as red, green, blue, etc. The light source 51 can be a mini LED. An electrode pattern can be formed on the substrate 43 and can connect an adapter (connector) and the light source 51. A power supply board can supply power to the light source 51 through the substrate 43. For example, the electrode pattern can be a carbon nanotube electrode pattern.

[0057] Referring to Figures 11 to 13 , the substrate 40 can be attached to the front side of the heat sink 83 through an adhesive member 40AD such as double-sided tape. Alternatively, an adhesive can also be coated on the back side of the substrate 40. The reflector 60 can be attached to the front side of the substrate 40 through an adhesive member 60AD such as double-sided tape. Alternatively, an adhesive can also be coated on the back side of the reflector 60. The reflector 60 can cover a plurality of devices such as connectors, jumpers, and voltage regulator diodes mounted on the substrate 40. The reflector 60 can reflect the light provided from the light source 51 or reflected from the diffusion plate 31 to the front (referring to Figure 2 ). For example, the reflector 60 can include at least one of a metal and / or metal oxide having a high reflectivity such as aluminum (Al), silver (Ag), gold (Au), or titanium dioxide (TiO2). For example, a resin can be deposited or coated on the reflector 60. At least one reflector 60 can be provided. A plurality of reflectors 60 can cover the (plural) substrates 40.

[0058] Holes 601 can be formed in the reflector 60, and the light source 51 or the lens 53 covering the light source 51 can be disposed in the holes 601. The lens 53 can penetrate through the hole 60ADa of the adhesive member 60AD and the hole 601 of the reflector 60. The lens 53 can include a silicon material, and the lens 53 can expand the light pointing angle. The diameter of the hole 601 can be larger than the diameter of the lens 53. The number of the plurality of holes 601 can be the same as the number of the plurality of light sources 51 or the plurality of lenses 53.

[0059] On the other hand, (plural) cutting lines 602 can be formed in the reflector 60 and can be opened under the action of protruding devices (such as voltage regulator diodes) on the substrate 40. The shape of the cutting line 602 can be various such as "+", "×", "丨", "—", "口", etc.

[0060] On the other hand, the support member 39 may sequentially penetrate the hole 60b of the reflective sheet 60, the hole 60ADb of the adhesive member 60AD, the hole 40s of the substrate 40, and the hole 40ADb of the adhesive member 40AD, and the support member 39 may be detachably coupled to the heat sink 83 and / or the frame 80. The front end of the support member 39 may support the back side of the diffuser 31 (see Figure 2 ).

[0061] Reference Fig.14 , the plurality of reflective sheets 60 may cover the front surface of the substrate 40. The number of the plurality of holes 601 of the plurality of reflective sheets 60 may be the same as the number of the plurality of light sources 51 or the plurality of lenses 53. For example, the first reflective sheet 61, the second reflective sheet 62, the third reflective sheet 63 and the fourth reflective sheet 64 may cover the front surface of the substrate 40.

[0062] The first reflective sheet 61 may be adjacent to the left side 80L and the top side 80U of the frame 80, and the first reflective sheet 61 may be a quadrilateral. The second reflective sheet 62 may be adjacent to the right side 80R and the top side 80U of the frame 80, and the second reflective sheet 62 may be a quadrilateral. The first vertical line VL1 may extend along the boundary between the first reflective sheet 61 and the second reflective sheet 62.

[0063] The third reflective sheet 63 may be adjacent to the left side 80L and the bottom side 80D of the frame 80, and the third reflective sheet 63 may be a quadrilateral. The fourth reflective sheet 64 may be adjacent to the right side 80R and the bottom side 80D of the frame 80, and the fourth reflective sheet 64 may be a quadrilateral. The second vertical line VL2 may extend along the boundary between the third reflective sheet 63 and the fourth reflective sheet 64.

[0064] The horizontal line HL may extend along boundaries between the first and second reflection sheets 61 and 62 and the third and fourth reflection sheets 63 and 64. The first and second vertical lines VL1 and VL2 may be spaced apart from each other in the left-right direction.

[0065] When two of the first to fourth reflectors 61, 62, 63, and 64 are identical to each other, if the sum of the number of the plurality of holes 601 of the first to fourth reflectors 61, 62, 63, and 64 is an even number, the remaining two reflectors may also be identical to each other.

[0066] Specifically, the first reflector 61 and the fourth reflector 64 may be identical to each other. In other words, the first reflector 61 and the fourth reflector 64 may be manufactured by the same mold. The number of the plurality of holes 6011 of the first reflector 61 and the number of the plurality of holes 6014 of the fourth reflector 64 may be an even number or an odd number. That is, the sum of the number of the plurality of holes 6011 of the first reflector 61 and the number of the plurality of holes 6014 of the fourth reflector 64 may be an even number.

[0067] At this time, if the sum of the number of the plurality of holes 601 of the first to fourth reflective sheets 61, 62, 63, 64 is an even number, the sum of the number of the plurality of holes 6012 of the second reflective sheet 62 and the number of the plurality of holes 6013 of the third reflective sheet 63 may be an even number. That is, the number of the plurality of holes 6012 of the second reflective sheet 62 and the number of the plurality of holes 6013 of the third reflective sheet 63 may be an even number or an odd number, and the second reflective sheet 62 and the third reflective sheet 63 may be identical to each other. In other words, the second reflective sheet 62 and the third reflective sheet 63 may be manufactured by the same mold.

[0068] In this case, the first to fourth reflection sheets 61 , 62 , 63 , and 64 may be two types of four-division reflection sheets.

[0069] Reference Fig.15 , the plurality of reflective sheets 60 may cover the front surface of the substrate 40. The number of the plurality of holes 601 of the plurality of reflective sheets 60 may be the same as the number of the plurality of light sources 51 or the plurality of lenses 53. For example, the first reflective sheet 60a, the second reflective sheet 60b, the third reflective sheet 60c and the fourth reflective sheet 60d may cover the front surface of the substrate 40.

[0070] The first reflective sheet 60a may be adjacent to the left side 80L and the top side 80U of the frame 80, and the first reflective sheet 60a may be a quadrilateral. The second reflective sheet 60b may be adjacent to the right side 80R and the top side 80U of the frame 80, and the second reflective sheet 60b may be a quadrilateral. The first vertical line VLa may extend along the boundary between the first reflective sheet 60a and the second reflective sheet 60b.

[0071] The third reflective sheet 60c may be adjacent to the left side 80L and the bottom side 80D of the frame 80, and the third reflective sheet 60c may be a quadrilateral. The fourth reflective sheet 60d may be adjacent to the right side 80R and the bottom side 80D of the frame 80, and the fourth reflective sheet 60d may be a quadrilateral. The second vertical line VLb may extend along the boundary between the third reflective sheet 60c and the fourth reflective sheet 60d.

[0072] The first horizontal line HLa may extend along the boundary between the first reflector 60a and the third reflector 60c. The second horizontal line HLb may extend along the boundary between the second reflector 60b and the fourth reflector 60d. The first vertical line VLa and the second vertical line VLb may be spaced apart from each other in the left-right direction. The first horizontal line HLa and the second horizontal line HLb may be spaced apart from each other in the up-down direction. Thus, compared with the case where the boundaries between the plurality of reflectors are constituted by a long horizontal line and a long vertical line, the boundaries between the first to fourth reflectors 60a, 60b, 60c, 60d may not be clearly seen on the screen.

[0073] When two of the first to fourth reflectors 60a, 60b, 60c, 60d are identical to each other, if the sum of the number of the plurality of holes 601 of the first to fourth reflectors 60a, 60b, 60c, 60d is an odd number, the remaining two reflectors may be different from each other.

[0074] Specifically, the first reflector 60a and the fourth reflector 60d may be identical to each other. In other words, the first reflector 60a and the fourth reflector 60d may be manufactured by the same mold. The number of the plurality of holes 601a of the first reflector 60a and the number of the plurality of holes 601d of the fourth reflector 60d may be an even number or an odd number. That is, the sum of the number of the plurality of holes 601a of the first reflector 60a and the number of the plurality of holes 601d of the fourth reflector 60d may be an even number.

[0075] At this time, if the sum of the number of the plurality of holes 601 of the first to fourth reflective sheets 60a, 60b, 60c, 60d is an odd number, the sum of the number of the plurality of holes 601b of the second reflective sheet 60b and the number of the plurality of holes 601c of the third reflective sheet 60c may be an odd number. That is, either the number of the plurality of holes 601b of the second reflective sheet 60b or the number of the plurality of holes 601c of the third reflective sheet 60c may be an even number, and the other may be an odd number. In other words, the second reflective sheet 60b and the third reflective sheet 60c may be different from each other.

[0076] For example, the number of holes 601a of the first reflector 60a and the number of holes 601d of the fourth reflector 60d may be the same as 798. The number of holes 601b of the second reflector 60b may be 891, and the number of holes 601c of the third reflector 60c may be 888.

[0077] As described below, the first to fourth reflection sheets 60a, 60b, 60c, and 60d may not overlap each other in the front-to-back direction, and may be combined or attached to the substrate 40. That is, it is possible to prevent a portion of the first to fourth reflection sheets 60a, 60b, 60c, and 60d (especially, portions adjacent to each other) from being lifted or separated from the substrate 40.

[0078] on the other hand, Fig.15 The size and number of the plurality of reflective sheets 60 shown are exemplary. That is, the reflective sheet 60 can be divided into two, three or four (see Fig.15 ) or six or eight or other quantities.

[0079] Reference Fig.16 and Fig.17, the lateral length Wa of the first reflective sheet 60a may be greater than the vertical length Ha. The first vertical side portion 60Sa may be bent obliquely forward from the left side of the first reflective sheet 60a, and may extend along the left side. The first horizontal side portion 60La may be bent obliquely forward from the top edge of the first reflective sheet 60a, and may extend along the top edge. The first horizontal side portion 60La and the first vertical side portion 60Sa may contact each other. The surfaces of the first vertical side portion 60Sa and the first horizontal side portion 60La may be made of a reflective material. The first vertical side portion 60Sa may be referred to as a first vertical chamfered portion 60Sa, and the first horizontal side portion 60La may be referred to as a first horizontal chamfered portion 60La.

[0080] The lateral length Wd of the fourth reflector 60d may be equal to the lateral length Wa of the first reflector 60a, and the vertical length Hd of the fourth reflector 60d may be equal to the vertical length Ha of the first reflector 60a. The fourth vertical side portion 60Sd may be bent obliquely forward from the right side of the fourth reflector 60d and may extend along the right side. The fourth horizontal side portion 60Ld may be bent obliquely forward from the bottom edge of the fourth reflector 60d and may extend along the bottom edge. The fourth horizontal side portion 60Ld and the fourth vertical side portion 60Sd may contact each other. The surfaces of the fourth vertical side portion 60Sd and the fourth horizontal side portion 60Ld may be composed of a reflective material. The fourth vertical side portion 60Sd may be referred to as a fourth vertical chamfered portion 60Sd, and the fourth horizontal side portion 60Ld may be referred to as a fourth horizontal chamfered portion 60Ld.

[0081] At this time, the fourth reflection sheet 60d can be equivalent to the first reflection sheet 60a rotated 180 degrees (refer to Fig.16 The fourth vertical side portion 60Sd of the fourth reflective sheet 60d may be equivalent to the first vertical side portion 60Sa of the first reflective sheet 60a rotated 180 degrees (refer to Fig.16 The fourth horizontal side portion 60Ld of the fourth reflector 60d may be equivalent to the first horizontal side portion 60La of the first reflector 60a rotated 180 degrees (refer to Fig.16 In addition, the plurality of side portions 60Sa, 60La, 60Sd, and 60Ld may be omitted, and the fourth reflection sheet 60d may be the same as the first reflection sheet 60a.

[0082] Thus, the first reflection sheet 60a and the fourth reflection sheet 60d can be manufactured by one mold.

[0083] Reference Fig.18, the lateral length Wb of the second reflective sheet 60b may be greater than the vertical length Hb. The second vertical side portion 60Sb may be bent obliquely forward from the right side of the second reflective sheet 60b, and may extend along the right side. The second horizontal side portion 60Lb may be bent obliquely forward from the top edge of the second reflective sheet 60b, and may extend along the top edge. The second vertical side portion 60Sb and the second horizontal side portion 60Lb may contact each other. The surfaces of the second vertical side portion 60Sb and the second horizontal side portion 60Lb may be made of a reflective material. The second vertical side portion 60Sb may be referred to as a second vertical chamfered portion 60Sb, and the second horizontal side portion 60Lb may be referred to as a second horizontal chamfered portion 60Lb.

[0084] The protrusion 60t may protrude from one side of the second reflective sheet 60b. The side may be the side of the second reflective sheet 60b on which the plurality of side portions 60Sb, 60Lb are not formed. For example, the protrusion 60t may protrude from the left side of the second reflective sheet 60b to the left side, and the protrusion 60t may be adjacent to the bottom side of the second reflective sheet 60b. The protrusion 60t may have a preset width Wt and height Ht. Similar to other parts of the second reflective sheet 60b, the protrusion 60t may include a reflective material as a reflective sheet, and the protrusion 60t may have a plurality of holes 601b, and a plurality of the holes 601b are provided with a plurality of lenses 53.

[0085] Reference Fig.19 and Fig. 20 , the lateral length Wc of the third reflective sheet 60c may be equal to the lateral length Wb of the second reflective sheet 60b, and the vertical length Hc of the third reflective sheet 60c may be equal to the vertical length Hb of the second reflective sheet 60b. The third vertical side portion 60Sc may be bent obliquely forward from the left side of the third reflective sheet 60c and may extend along the left side. The third horizontal side portion 60Lc may be bent obliquely forward from the bottom edge of the third reflective sheet 60c and may extend along the bottom edge. The third vertical side portion 60Sc and the third horizontal side portion 60Lc may contact each other. The surfaces of the third vertical side portion 60Sc and the third horizontal side portion 60Lc may be made of a reflective material. The third vertical side portion 60Sc may be referred to as a third vertical chamfered portion 60Sc, and the third horizontal side portion 60Lc may be referred to as a third horizontal chamfered portion 60Lc.

[0086] The number of the plurality of holes 601b of the second reflector 60b having the protrusion 60t may be an odd number, the number of the plurality of holes 601c of the third reflector 60c may be an even number, and the number of the plurality of holes 601b of the protrusion 60t may be an odd number (for example, three). Alternatively, the number of the plurality of holes 601b of the second reflector 60b having the protrusion 60t may be an even number, the number of the plurality of holes 601c of the third reflector 60c may be an odd number, and the number of the plurality of holes 601b of the protrusion 60t may be an odd number (for example, three).

[0087] At this time, the third reflective sheet 60c can be equivalent to cutting off (refer to Fig.19 The second reflector 60b of the protruding portion 60t is rotated 180 degrees (refer to Fig.19 The third vertical side portion 60Sc of the third reflector 60c may be equivalent to the second vertical side portion 60Sb of the second reflector 60b rotated 180 degrees (refer to Fig.19 The third horizontal side portion 60Lc of the third reflective sheet 60c may be equivalent to the second horizontal side portion 60Lb of the second reflective sheet 60b rotated 180 degrees (refer to Fig.19 Alternatively, the plurality of side portions (60Sb, 60Lb, 60Sc, 60Lc) may be omitted, and the third reflection sheet 60c may be equivalent to the second reflection sheet 60b with the protruding portion 60t cut off.

[0088] Thus, the second reflection sheet 60b and the third reflection sheet 60c can be manufactured by one mold. The second reflection sheet 60b can have a protrusion 60t, and the protrusion 60t can be cut off from other parts of the third reflection sheet 60c to be removed.

[0089] In this case, the first to fourth reflection sheets 60a, 60b, 60c, 60d (see Figures 15 to 20 ) may be two types of four-divided reflectors with additional cutting processes. In this case, the sum of the number of the plurality of holes 601 of the first to fourth reflectors 60a, 60b, 60c, and 60d may be an odd number. On the other hand, even if the sum of the number of the plurality of holes 601 of the first to fourth reflectors 60a, 60b, 60c, and 60d is an even number, any two reflectors may be manufactured by one mold, and any one of them may be equivalent to removing a protrusion from the other.

[0090] Reference Fig.21, the protrusion 60tt may protrude from the left side of the second reflective sheet 60b to the left side, and may be adjacent to the bottom edge of the second reflective sheet 60b. The protrusion 60tt may have a preset width Wtt and height Htt. Similar to other parts of the second reflective sheet 60b, the protrusion 60tt may include a reflective material as a reflective sheet, and may have a plurality of holes 601b provided with a plurality of lenses 53. The number of the plurality of holes 601b of the protrusion 60tt may be an even number (e.g., six).

[0091] The second reflection sheet 60b and the third reflection sheet may be manufactured by one mold. The second reflection sheet 60b may have a protrusion 60tt, and the protrusion 60tt may be cut off from other portions of the third reflection sheet to be removed.

[0092] Reference Fig. 22 , the first protrusion 60t and the second protrusion 60u may protrude from the left side of the second reflective sheet 60b to the left side. The first protrusion 60t may be adjacent to the bottom edge of the second reflective sheet 60b, and the second protrusion 60u may be adjacent to the top edge of the second reflective sheet 60b. The first protrusion 60t may have a preset width Wt and height Ht, and the second protrusion 60u may have a preset width Wu and height Hu. Similar to other parts of the second reflective sheet 60b, the first protrusion 60t and the second protrusion 60u may include a reflective material as a reflective sheet, and may have a plurality of holes 601b provided with a plurality of lenses 53. The number of each of the first protrusion 60t and the second protrusion 60u may be an odd number (for example, three) or an even number. The first protrusion 60t and the second protrusion 60u may have the same or different shapes as each other.

[0093] The second reflection sheet 60b and the third reflection sheet may be manufactured by one mold. The second reflection sheet 60b may have a first protrusion 60t and a second protrusion 60u, and at least one of the first protrusion 60t and the second protrusion 60u may be removed by being cut away from other portions of the third reflection sheet.

[0094] Reference Fig.23, the first protrusion 60t may protrude from the left side of the second reflective sheet 60b to the left side, and may be adjacent to the bottom edge of the second reflective sheet 60b. The second protrusion 60v may protrude from the bottom edge of the second reflective sheet 60b to the lower side, and may be adjacent to the right side of the second reflective sheet 60b. The first protrusion 60t may have a preset width Wt and height Ht, and the second protrusion 60v may have a preset width Wv and height Hv. Similar to other parts of the second reflective sheet 60b, the first protrusion 60t and the second protrusion 60v may include a reflective material as a reflective sheet, and the first protrusion 60t and the second protrusion 60v may have a plurality of holes 601b provided with a plurality of lenses 53. The number of each of the first protrusion 60t and the second protrusion 60v may be an odd number (for example, three) or an even number. The first protrusion 60t and the second protrusion 60v may have the same or different shapes as each other.

[0095] The second reflection sheet 60b and the third reflection sheet may be manufactured by one mold. The second reflection sheet 60b may have a first protrusion 60t and a second protrusion 60v, and at least one of the first protrusion 60t and the second protrusion 60v may be removed by being cut away from other portions of the third reflection sheet.

[0096] Reference Fig.24 , the third protrusion 60w may protrude from the first protrusion 60t, and the third protrusion 60w may have a width Ww and a height Hw that are the same or different from those of the first protrusion 60t. The fourth protrusion 60x may protrude from the second protrusion 60u, and the fourth protrusion 60x may have a width Wx and a height Hx that are the same or different from those of the second protrusion 60u. The third protrusion 60w and the fourth protrusion 60x may include a reflective material as a reflective sheet, and the third protrusion 60w and the fourth protrusion 60x may have a plurality of holes 601b provided with a plurality of lenses 53, as in the other parts of the second reflective sheet 60b. The number of each of the third protrusion 60w and the fourth protrusion 60x may be an odd number (e.g., three) or an even number. The third protrusion 60w and the fourth protrusion 60x may have the same or different shapes from each other.

[0097] The second reflector 60b and the third reflector can be manufactured by one mold. The second reflector 60b can have first to fourth protrusions 60t, 60u, 60w, 60x, and at least one of the first to fourth protrusions 60t, 60u, 60w, 60x can be cut off from other parts of the third reflector and removed.

[0098] Reference Fig.25 , (plural) dots 60P may be formed on the surface of the protrusion 60t. The dots 60P may be a black or white printed layer.

[0099] Reference Fig.26 The dots 60Q may be formed on the surface of the protrusion 60t. The dots 60Q may be a fluorescent printing layer.

[0100] Reference Fig. 27 The guide line 60G may be formed at the boundary between the protruding portion 60t and the other portion of the second reflective sheet 60b. The guide line 60G may be a black and white printed layer in the form of a dotted line. An operator or a robot may cut off the protruding portion 60t from the other portion of the second reflective sheet 60b along the guide line 60G.

[0101] Reference Fig.28 and Fig.29 The protrusion 60t' may protrude from the right side of the first reflection sheet 60a to the right side and may be adjacent to the bottom side of the first reflection sheet 60a. The protrusion 60t' may have a preset width Wt' and height Ht'.

[0102] The protruding portion 60t' of the first reflection sheet 60a may overlap with the protruding portion 60t of the second reflection sheet 60b (see Fig.28 and Fig.29 In this case, the protruding portion 60t' may be cut off from other portions of the first reflection sheet 60a, and the protruding portion 60t may be cut off from other portions of the second reflection sheet 60b.

[0103] Reference Figures 1 to 29 A display device according to one aspect of the present invention may include: a display panel; a frame located behind the display panel; a substrate located between the display panel and the frame and combined with the frame; a plurality of light sources located on the substrate; and a reflective sheet covering the substrate and having a plurality of holes having the same number as the plurality of light sources; the reflective sheet may include: a first reflective sheet having a plurality of first holes which are parts of the plurality of holes, the first reflective sheet including a protrusion which protrudes from one side of the first reflective sheet and has a part of the plurality of first holes; and a second reflective sheet having a plurality of second holes which are parts of the plurality of holes; the second reflective sheet may be the same as the first reflective sheet with the protrusion cut off.

[0104] The first reflection sheet and the second reflection sheet may not overlap each other in the front-rear direction.

[0105] The number of the plurality of holes of the reflection sheet may be an odd number, and the number of the plurality of second holes of the second reflection sheet may be equal to the number of the plurality of first holes of the first reflection sheet minus the number of the plurality of first holes formed in the protrusion.

[0106] The number of the plurality of first holes formed in the protrusion may be an odd number.

[0107] The number of the plurality of first holes of the first reflection sheet may be an odd number, and the number of the plurality of second holes of the second reflection sheet may be an even number.

[0108] The number of the plurality of first holes of the first reflection sheet may be an even number, and the number of the plurality of second holes of the second reflection sheet may be an odd number.

[0109] The protrusion may include a plurality of protrusions spaced apart from each other along the one side of the first reflection sheet.

[0110] The protrusion may include: a first protrusion protruding from the one side of the first reflection sheet; and a second protrusion protruding from the other side of the first reflection sheet.

[0111] The reflective sheet may further include: a third reflective sheet having a plurality of third holes which are portions of the plurality of holes; and a fourth reflective sheet having a plurality of fourth holes which are portions of the plurality of holes and having the same shape as the third reflective sheet; the first to fourth reflective sheets may be adjacent to each other.

[0112] The first reflector may be adjacent to the right side and top side of the frame, the second reflector may be adjacent to the left side and bottom side of the frame, the third reflector may be adjacent to the left side and the top side of the frame, the fourth reflector may be adjacent to the right side and the bottom side of the frame, and the boundary between the first reflector and the third reflector may be separated from the boundary between the second reflector and the fourth reflector in the horizontal direction.

[0113] With respect to the frame, the second reflection sheet may be arranged at the same angle as the first reflection sheet with the protruding portion cut off, or may be arranged at an angle of 180 degrees rotating the first reflection sheet with the protruding portion cut off.

[0114] The first reflection sheet may include a side portion bent forward from the other side of the first reflection sheet.

[0115] The first reflection sheet may include a guide line forming a boundary between the protrusion and other portions of the first reflection sheet.

[0116] The first reflection sheet may include a printed layer formed on a surface of the protrusion.

[0117] The display device may further include a plurality of lenses, the plurality of lenses covering the plurality of light sources and being fixed on the substrate, and the plurality of lenses may be located in the plurality of holes of the reflective sheet.

[0118] Any of the above embodiments or other embodiments of the present invention are not mutually exclusive or distinguishable. Any of the above embodiments or other embodiments of the present invention can be used or combined with their respective configurations or functions.

[0119] For example, it means that the A configuration described in a specific embodiment and / or figure can be combined with the B configuration described in other embodiments and / or figures. That is, even if there is no direct description of the combination between the configurations, it means that they can be combined unless it is described that they cannot be combined.

[0120] The above detailed description should not be interpreted as limiting in all aspects, but should be considered as illustrative. The scope of the present invention should be determined according to the reasonable interpretation of the appended claims, and all changes made within the equivalent scope of the present invention are included in the scope of the present invention.

Claims

1. A display device, wherein: include: Display panel; a frame, located behind the display panel; A substrate, located between the display panel and the frame, and combined with the frame; A plurality of light sources are arranged on the substrate; as well as A reflective sheet, covering the substrate and having a plurality of holes corresponding to the plurality of light sources; The reflector comprises: A first reflective sheet having a protruding portion and a plurality of first holes among the plurality of holes, wherein the protruding portion protrudes from one side of the first reflective sheet and includes a portion of the plurality of first holes; A second reflecting sheet having a plurality of second holes among the plurality of holes; A third reflecting sheet having a plurality of third holes among the plurality of holes; and A fourth reflective sheet having a plurality of fourth holes; The second reflection sheet is the same as the first reflection sheet except that the protruding portion is removed.

2. The display device according to claim 1, wherein: The first reflection sheet, the second reflection sheet, the third reflection sheet, and the fourth reflection sheet do not overlap with each other in the front-to-back direction.

3. The display device according to claim 1, wherein: The number of the plurality of holes in the reflective sheet is an odd number, The number of holes in the second reflection sheet is equal to the number of holes in the first reflection sheet excluding the first holes disposed in the protruding portions.

4. The display device according to claim 1, wherein: The number of the plurality of first holes formed in the protruding portion is an odd number.

5. The display device according to claim 4, wherein: The number of the plurality of first holes of the first reflector is an odd number, The number of the plurality of second holes of the second reflecting sheet is an even number.

6. The display device according to claim 4, wherein: The number of the plurality of first holes of the first reflector is an even number, The number of the plurality of second holes of the second reflecting sheet is an odd number.

7. The display device according to claim 1, wherein: The protrusions include a plurality of protrusions, and each of the plurality of protrusions is separated from the other plurality of protrusions disposed on the one side of the first reflection sheet.

8. The display device according to claim 1, wherein: The protrusion comprises: a first protruding portion protruding from the one side of the first reflecting sheet; and The second protrusion protrudes from a side of the first reflection sheet different from the side.

9. The display device according to claim 1, wherein: The first to fourth reflection sheets are arranged adjacent to each other.

10. The display device according to claim 9, wherein: The first reflective sheet is adjacent to the right side and the top side of the frame, The second reflective sheet is adjacent to the left side and the bottom side of the frame, The third reflective sheet is adjacent to the left side and the top side of the frame, The fourth reflective sheet is adjacent to the right side and the bottom side of the frame, A boundary between the first reflection sheet and the third reflection sheet is spaced apart from a boundary between the second reflection sheet and the fourth reflection sheet in a horizontal direction.

Images