Display device

Abstract

The invention discloses a display device. A display device of the present invention may include: a display panel; a frame having a pressing portion and located behind the display panel; a heat dissipation plate located between the display panel and the frame; the substrate is located between the display panel and the heat dissipation plate; and a plurality of light sources on the substrate, a front surface of the frame facing the display panel may include: a first region on which the pressing portion is formed; and a second region, the heat dissipation plate may have an area smaller than that of the front surface of the frame and cover the first region, and the substrate may be located on the heat dissipation plate and the second region.

Description

Technical Field

[0001] The present invention relates to a display device (Display Device). Background Art

[0002] With the development of information society, the demand for display devices has been continuously increasing in various forms. Correspondingly, various display devices such as LCD (Liquid Crystal Display Device), PDP (Plasma Display Panel), ELD (Electro luminescent Display), VFD (Vacuum Fluorescent Display) and so on have been studied and used in recent years.

[0003] The LCD panel may include a TFT (Thin Film Transistor) substrate and a color substrate facing each other via a liquid crystal layer, and may display an image using light provided by a backlight unit.

[0004] The plurality of LED substrates (i.e., the plurality of LED arrays) of the backlight unit may be mounted on a heat sink, and the heat of the plurality of LED substrates may be transferred to the heat sink. However, the area of ​​the heat sink is relatively large corresponding to the area occupied by the plurality of LED substrates, resulting in that the weight and manufacturing cost of the display device may increase due to the heat sink. Summary of the invention

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

[0006] Another object may be to provide a display device capable of minimizing an increase in weight and cost of the display device due to a heat dissipation plate.

[0007] Another object may be to provide a display device having a split heat dissipation plate and a substrate located on the split heat dissipation plate and a frame.

[0008] Another object may be to provide a structure capable of preventing a substrate on a heat dissipation plate from floating from a pressing portion by covering the pressing portion of a frame with the heat dissipation plate.

[0009] Another object may be to provide a structure for combining a heat sink plate with a frame.

[0010] Another object may be to provide various examples related to the shape and configuration of the substrate on the heat sink and the frame.

[0011] According to one aspect of the present invention for achieving the above-mentioned purpose or other purposes, the display device may include: a display panel; a frame having a pressing portion and located behind the display panel; a heat sink located between the display panel and the frame; a substrate located between the display panel and the heat sink; and a plurality of light sources located on the substrate, and the front side of the frame facing the display panel may include: a first area on which the pressing portion is formed; and a second area, which is an area other than the first area, the heat sink may have an area smaller than the front side of the frame and cover the first area, and the substrate may be located on the heat sink and the second area.

[0012] The effects of the display device of the present invention are described below.

[0013] According to at least one of the embodiments of the present invention, it is possible to provide a display device capable of minimizing increases in weight and cost of the display device due to a heat dissipation plate.

[0014] According to at least one of the embodiments of the present invention, a display device having a split heat dissipation plate and a substrate located on the split heat dissipation plate and a frame may be provided.

[0015] According to at least one of the embodiments of the present invention, it is possible to provide a structure capable of preventing a substrate on a heat dissipation plate from floating from a pressing portion by covering a pressing portion of a frame with the heat dissipation plate.

[0016] According to at least one of the embodiments of the present invention, a structure for combining a heat dissipation plate with a frame may be provided.

[0017] According to at least one of the embodiments of the present invention, various examples can be provided regarding the shape and configuration of the substrate positioned on the heat dissipation plate and the frame.

[0018] From the following detailed description, the scope of the additional application of the present invention will become apparent. However, those skilled in the art can clearly understand the various changes and modifications within the thought and scope of the present invention, and therefore it should be understood that the specific embodiments such as the detailed description and the preferred embodiments of the present invention are provided only by way of example. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figures 1 to 29 is a diagram showing an example of a display device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0020] 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.

[0021] The suffixes "module" and "unit" for the constituent elements used in the following description are given or used interchangeably only for the convenience of writing the specification, and do not have meanings or functions that distinguish one from another.

[0022] In addition, when describing the embodiments disclosed in this specification, if it is determined that the specific description of the relevant known technology may confuse the main purpose of the embodiments disclosed in this specification, the detailed description will be 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 by the drawings and should be understood to include all changes, equivalents and substitutes within the ideas and technical scope of this specification.

[0023] Terms including ordinal numbers such as "first" and "second" 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 other components.

[0024] When a certain component is mentioned as being "connected" or "linked" to another component, it should be understood that it may be directly connected or linked to the other component, but other components may also exist between them. Conversely, when a certain component is mentioned as being "directly connected" or "directly linked" to another component, it should be understood that there are no other components between them.

[0025] Unless the context clearly indicates otherwise, an expression in the singular includes an expression in the plural.

[0026] In the present application, terms such as "including" or "having" are only used to specify the existence of features, numbers, steps, actions, constituent elements, parts or their combinations recorded in the specification, and are not intended to exclude the possibility of the existence or addition of one or more other features or numbers, steps, actions, constituent elements, parts or their combinations.

[0027] The directions of up (U), down (D), left (Le), right (Ri), front (F) and back (R) shown in the figures are for convenience of explanation only, and the technical ideas disclosed in this specification are not limited thereto.

[0028] Reference Figure 1 , the display device 1 may include a display panel 10. The display panel 10 may display an image.

[0029] 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 first side LS1 and the second long side LS2 are shown to be longer than the first short side SS1 and the second short side SS2, but the first side LS1 and the second long side LS2 may be substantially the same as the first short side SS1 and the second short side SS2.

[0030] The direction parallel to the long sides LS1 and 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).

[0031] The direction parallel to the short sides SS1 and 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).

[0032] The direction perpendicular to the long sides LS1, LS2 and the 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 images may be referred to as the front (F, z), and the opposite direction may be referred to as the rear (R).

[0033] The first long side LS1, the second long side LS2, the first short side SS1, and the second short side SS2 may be referred to as edges of the display device 1. In addition, the portions where the first long side LS1, the second long side LS2, the first short side SS1, and the second short side SS2 intersect with each other may be referred to as corners. The portion where the first short side SS1 and the first long side LS1 intersect may be referred to as a first corner C1. The portion where the first long side LS1 and the second short side SS2 intersect may be referred to as a second corner C2. The portion where the second short side SS2 and the second long side LS2 intersect may be referred to as a third corner C3. The portion where the second long side LS2 and the first short side SS1 intersect may be referred to as a fourth corner C4.

[0034] 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 .

[0035] The display panel 10 may form the front side of the display device 1 and display an image. The display panel 10 may display an image by causing a plurality of pixels to output RGB (Red, Green or Blue) of each pixel at a timing. 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 via a liquid crystal layer. The display panel 10 may be referred to as an LCD panel 10.

[0036] The front substrate may include a plurality of pixels formed of red, green, and blue sub-pixels. The front substrate may output light corresponding to red, green, or blue according to a control signal.

[0037] 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.

[0038] The side frame 20 may extend along the edge of the display panel 10. The side frame 20 may cover the edge of the display panel 10. The first portion 21 may cover the upper edge of the display panel 10 and form a first long side LS1. The second portion 22 may cover the lower edge of the display panel 10 and form a second long side LS2. The third portion 23 may cover the left side of the display panel 10 and form a first short side SS1. The fourth portion 24 may cover the right side of the display panel 10 and form a second short side SS2. The side frame 20 may include a plastic or metal material and is referred to as a guide panel 20.

[0039] The backlight unit may be located behind the display panel 10. The backlight unit may be located in front of the frame 80 and coupled to the frame 80. The backlight unit may be driven in a full driving mode or a local driving mode such as local dimming, impulse driving, etc. The backlight unit may include: a plurality of light sources, providing light to the front; a substrate 40, mounting the plurality of light sources; 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.

[0040] 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.

[0041] The diffuser 31 may be located between the reflective sheet 60 and the optical sheet 32. The diffuser 31 may diffuse the light of 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 of the light source may be widely diffused through the air gap. The support member 39 may be located between the reflective sheet 60 and the diffuser 31 and may be combined with the reflective sheet 60 and support the diffuser 31.

[0042] 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.

[0043] 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 components of the display device described above and below. For example, the frame 80 may include a metal material such as aluminum alloy. The frame 80 may be called a main frame 80, a module cover 80, or a cover bottom 80.

[0044] The rear cover 90 may cover the rear of the frame 80 and be coupled to the frame 80. The rear cover 90 may be an injection molded product of a resin material. Alternatively, the rear cover 90 may include a metal material.

[0045] Reference Figure 3 , the base 81 of the frame 80 may form the central portion of the frame 80. The base 81 may be opposite to the display panel 10 via the optical portion 30. The flat plate portion 81F may form the front of the base 81. The pressing portion 81G may be formed by pressing from the front to the rear of the flat plate portion 81F. The plurality of pressing portions 81P, 81Q, 81R may be separated from each other. At least a portion of the plurality of pressing portions 81P, 81Q, 81R may be connected to each other.

[0046] The horizontal pressing portion 81P may be a groove extending in the horizontal direction. The first horizontal pressing portion 81P1 may be adjacent to and extend along the upper side 80U of the frame 80. The second horizontal pressing portion 81P2 may be adjacent to and extend along the lower side 80D of the frame 80.

[0047] The vertical pressing portion 81Q may be a groove extending in the vertical direction. The first vertical pressing portion 81Q1 may be adjacent to the left side 80L of the frame 80 and extend along the left side 80L. The second vertical pressing portion 81Q2 may be located between the left side 80L of the frame 80 and a vertical line passing through the center of the frame 80, and may be adjacent to the vertical line and extend along the vertical line. The third vertical pressing portion 81Q3 may be located between the right side 80R of the frame 80 and a vertical line passing through the center of the frame 80, and may be adjacent to the vertical line and extend along the vertical line. The fourth vertical pressing portion 81Q4 may be adjacent to the right side 80R of the frame 80 and extend along the right side 80R.

[0048] The intermediate pressing portion 81R may be a groove formed by extending in the horizontal direction. The first intermediate pressing portion 81R1 may be located between the first vertical pressing portion 81Q1 and the second vertical pressing portion 81Q2, adjacent to the second horizontal pressing portion 81P2 and extending along the second horizontal pressing portion 81P2. The second intermediate pressing portion 81R2 may be located between the second vertical pressing portion 81Q2 and the third vertical pressing portion 81Q3, adjacent to the second horizontal pressing portion 81P2 and extending along the second horizontal pressing portion 81P2. The third intermediate pressing portion 81R3 may be located between the third vertical pressing portion 81Q3 and the fourth vertical pressing portion 81Q4, adjacent to the second horizontal pressing portion 81P2 and extending along the second horizontal pressing portion 81P2. The first intermediate pressing portion 81R1, the second intermediate pressing portion 81R2 and the third intermediate pressing portion 81R3 may be arranged in a row.

[0049] Thus, the pressing portion 81G can improve the rigidity of the frame 80. The pressing portion 81G may be referred to as a forming portion 81G (forming portion) or a reinforcing rib 81G (bead).

[0050] On the other hand, the fixing portion 80M may be formed by pressing from the front side of the flat plate portion 81F to the rear side and may be separated from the pressing portion 81G. The first fixing portion 80M1 may be located between the first vertical pressing portion 81Q1 and the second vertical pressing portion 81Q2. The second fixing portion 80M2 may be located between the second vertical pressing portion 81Q2 and the third vertical pressing portion 81Q3. The third fixing portion 80M3 may be located between the third vertical pressing portion 81Q3 and the fourth vertical pressing portion 81Q4.

[0051] A plurality of boards P may be located behind the frame 80 and electrically connected to the electronic components of the display device. For example, a power supply board may supply power to various components of the display device and may be mounted on the first fixing portion 80M1 by a fastening member such as a screw. For example, a timing controller board may provide an image signal to the display panel 10 and may be mounted on the second fixing portion 80M2 by a fastening member such as a screw. For example, a main board may control various components of the display device and may be mounted on the third fixing portion 80M3 by a fastening member such as a screw.

[0052] Reference Figure 3 and Figure 4 The heat sink plate 83' may cover the flat plate portion 81F and the pressing portion 81G of the base 81. The heat sink plate 83' may be combined with the flat plate portion 81F. The heat sink plate 83' may include a metal material. The heat sink plate 83' may be a single plate and include a plurality of regions 83A1', 83A2', 83A3', 83A4', 83A5', 83A6', 83A7', 83A8'.

[0053] On the other hand, a plurality of coupling portions 83s′ may be formed on the heat dissipation plate 83′, and a plurality of support members 39 (see Figure 2 ) can be detachably coupled to each of the plurality of coupling portions 83s′.

[0054] Reference Figure 5 , the substrate 41 may be located on the heat sink 83' (refer to Figure 4 ) on the front side. The substrate 41 may be combined with or attached to the heat sink 83'. For example, the substrate 41 may be attached to the heat sink 83' by a double-sided tape. The substrate 41 may be a PCB (Printed Circuit Board). For example, the substrate 41 may include at least one of polyethylene terephthalate (PET), glass, 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 a substrate 40.

[0055] The light source 51 can be mounted on the front side of the substrate 41. A plurality of light sources 51 can be arranged along each bar of the substrate 41. The light source 51 can be an LED (Light Emitting Diode) chip or an LED package. The light source 51 can be composed of a color LED or a white LED that emits at least one color such as red, green, blue, etc. The light source 51 can be a mini LED. An electrode pattern can be formed on the substrate 41 and connect the adapter (connector) and the light source 51. The power board can supply power to the light source 51 through the substrate 41. For example, the electrode pattern can be a carbon nanotube electrode pattern.

[0056] On the other hand, the joint portion 83s′ (see Figure 4 ) can be configured in the gap 41g (gap) between the substrates 41.

[0057] Reference Figure 6 , the substrate 42 may be located on the heat sink 83' (refer to Figure 4 ) on the front side. The substrate 42 may be combined with or attached to the heat sink 83′. For example, the substrate 42 may be attached to the heat sink 83′ by a double-sided tape. 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 plate shape and be provided with at least one. The substrate 42 may cover a plurality of regions 83A1′, 83A2′, 83A3′, 83A4′, 83A5′, 83A6′, 83A7′, 83A8′ of the heat sink 83′. The substrate 42 may be referred to as a substrate 40.

[0058] The light source 51 can be mounted on the front side of the substrate 42. A plurality of light sources 51 can be arranged in a matrix on the front side of the substrate 42. The light source 51 can be an LED (Light Emitting Diode) chip or an LED package. The light source 51 can be composed of a color LED or a white LED that emits at least one color such as red, green, blue, etc. The light source 51 can be a mini LED. An electrode pattern can be formed on the substrate 42 and connect the adapter (connector) and the light source 51. The power board can supply power to the light source 51 through the substrate 42. For example, the electrode pattern can be a carbon nanotube electrode pattern.

[0059] On the other hand, the joint portion 83s′ (see Figure 4 ) can be configured in the slot 42s formed in the substrate 42.

[0060] Reference Figure 7 and Figure 8, the substrate 43 may be located on the heat sink 83' (refer to Figure 4 ) on the front side. The substrate 43 may be combined with or attached to the heat sink 83'. For example, the substrate 43 may be attached to the heat sink 83' by a double-sided tape. 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 fork shape and be provided with at least one. The substrate 43 may cover a plurality of areas 83A1', 83A2', 83A3', 83A4', 83A5', 83A6', 83A7', 83A8' of the heat sink 83'. The substrate 43 may be referred to as a substrate 40.

[0061] The substrate 43 may include a main body 431 and a plurality of legs 432. The main body 431 may extend long and have a predetermined width 43Wa. The plurality of legs 432 may extend long from one side of the main body 431 along the length direction of the main body 431 and be spaced apart from each other in the width direction of the main body 431. The length 43Lb of the legs 432 may be the same as or different from the length 43La of the main body 431. For example, the width 43Wb of the legs 432 may be substantially the same as the interval 432g between the plurality of legs 432a, 432b, 432c, 432d, 432e, 432f, 432g, 432h, 432i, 432j, 432k, 432l, 432m, 432n, 432o, 432p.

[0062] The light source 51 can be mounted on the front side of the substrate 43. The plurality of light sources 51 can be arranged in a matrix on the front side of the main body 431 and the plurality of legs 432. The light source 51 can be an LED (Light Emitting Diode) chip or an LED package. The light source 51 can be composed of a color LED or a white LED that emits at least one color 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 connect the adapter (connector) and the light source 51. The power 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.

[0063] On the other hand, the joint portion 83s′ (see Figure 4 ) can be configured in the slot 43s formed in the main body 431 and / or the gap between the plurality of legs 432 (see 432g, gap).

[0064] Reference Fig. 9, the heat dissipation plate 83' may be located on the flat plate portion 81F of the frame 80. For example, the pin 83P' of the heat dissipation plate 83' may penetrate the flat plate portion 81F and be coupled to the flat plate portion 81F. Thus, the heat dissipation plate 83' may be coupled to the frame 80. A gap GP (gap) may be formed between the heat dissipation plate 83' and the pressing portion 81G.

[0065] The frame 80 may include a right side inclined portion 82Ra, a right side horizontal portion 82Rb, and a right side vertical portion 82Rc. The right side inclined portion 82Ra may extend obliquely forward from the right side of the base 81. The angle between the front of the base 81 and the right side inclined portion 82Ra may be an obtuse angle. The right side horizontal portion 82Rb may be bent horizontally from the end of the right side inclined portion 82Ra. The right side vertical portion 82Rc may be bent forward from the end of the right side horizontal portion 82Rb. The left side inclined portion, the left side horizontal portion, and the left side vertical portion may be formed on the left side of the base 81 of the frame 80 and may be symmetrical with the right side inclined portion 82Ra, the right side horizontal portion 82Rb, and the right side vertical portion 82Rc.

[0066] The frame 80 may include an upper inclined portion 82Ua, an upper horizontal portion 82Ub, and an upper vertical portion 82Uc (see Fig.21 ). The upper inclined portion 82Ua may extend obliquely forward from the upper side of the base 81. The angle between the front of the base 81 and the upper inclined portion 82Ua may be an obtuse angle. The upper horizontal portion 82Ub may be bent in the horizontal direction from the end of the upper inclined portion 82Ua. The upper vertical portion 82Uc may be bent forward from the end of the upper horizontal portion 82Ub. The lower inclined portion, the lower horizontal portion, and the lower vertical portion may be formed at the lower side of the base 81 of the frame 80 and be symmetrical with the upper inclined portion 82Ua, the upper horizontal portion 82Ub, and the upper vertical portion 82Uc.

[0067] Reference Fig.10 and Fig.11 , the reflective sheet 60 may cover the substrate 40. The reflective sheet 60 may be bonded to the substrate 40. The reflective sheet 60 may be attached to the front side of the substrate 40 by an adhesive member 60AD such as a double-sided tape. Alternatively, an adhesive may be applied to the back side of the reflective sheet 60. A hole 601 may be formed in the reflective sheet 60, and the light source 51 or a lens 53 covering the light source 51 may be located in the hole 601. Here, the lens 53 may be detachably bonded to the substrate 40 and provided with a groove for accommodating the light source 51. Alternatively, the lens 53 may be formed by curing a resin or a silicon solution dispensed toward the light source 51. The number of holes 601 may be the same as the number of light sources 51 or lenses 53.

[0068] The reflective sheet 60 can reflect the light provided by the light source 51 or from the diffuser 31 (refer to Figure 2) is reflected forward. For example, the reflective sheet 60 may include a metal and / or metal oxide having a high reflectivity such as at least one of aluminum (Al), silver (Ag), gold (Au) or titanium dioxide (TiO2). For example, a resin may be deposited or coated on the reflective sheet 60.

[0069] At least one reflective sheet 60 may be provided. A plurality of reflective sheets 60 may cover the substrate 40. For example, a first reflective sheet 61, a second reflective sheet 62, a third reflective sheet 63, and a fourth reflective sheet 64 may cover the front surface of the substrate 40.

[0070] The first reflective sheet 61 may be adjacent to the left side 80L and the upper side 80U of the frame 80 and may be a quadrilateral. The second reflective sheet 62 may be adjacent to the right side 80R and the upper side 80U of the frame 80 and 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.

[0071] The third reflective sheet 63 may be adjacent to the left side 80L and the bottom side 80D of the frame 80 and 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 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.

[0072] The horizontal line HL may extend along boundaries between the first and second reflection sheets 61, 62, and the third and fourth reflection sheets 63, 64. The first and second vertical lines VL1 and VL2 may be spaced apart from each other in the horizontal direction.

[0073] Reference Fig.12 and Fig.13 If the heat sink is removed from between the frame 80 and the substrate 40, the first portion of the substrate 40 will be located on the flat plate portion 81F of the frame 80, but the second portion of the substrate 40 will be separated from the pressing portion 81G of the frame 80 (refer to Fig.13 In this case, the heat of the first portion of the substrate 40 is easily transferred to the frame 80, but the heat of the second portion of the substrate 40 may not be easily transferred to the frame 80. That is, a relatively high temperature may be formed in the area corresponding to the second portion of the substrate 40, thereby reducing the image quality of the display.

[0074] and Figure 3 Refer to Figures 14 to 16, a heat sink plate 83 may cover a portion of the base 81 of the frame 80. The heat sink plate 83 may be combined with the flat plate portion 81F of the base 81. The heat sink plate 83 may include a metal material. The area of ​​the heat sink plate 83 may be smaller than the area of ​​the base 81, and the base 81 may include a portion not covered by the heat sink plate 83. For example, the area of ​​the heat sink plate 83 may be 40% to 60% of the area of ​​the base 81. For example, the area of ​​the heat sink plate 83 may be less than 50% of the area of ​​the base 81. The heat sink plate 83 may be located at a position corresponding to the pressing portion 81G of the base 81 and cover at least a portion of the pressing portion 81G. At least one heat sink plate 83 may be provided. A plurality of heat sink plates 83 may be provided independently of each other. Alternatively, at least a portion of the plurality of heat sink plates 83 may also be formed as one body with each other.

[0075] Thus, the heat sink 83 can improve the rigidity of the frame 80. The heat sink 83' (see Figure 4 ) compared to a display device having a heat sink 83, the display device having a heat sink 83 can reduce weight and reduce manufacturing costs.

[0076] and Figure 3 Refer to Fig.14 The heat dissipation plate 83 may include a horizontal heat dissipation plate 831 and a vertical heat dissipation plate 835 .

[0077] The horizontal heat dissipation plate 831 may extend longer in the horizontal direction. The first horizontal heat dissipation plate 831a may extend along the first horizontal pressing portion 81P1 and cover at least a portion of the first horizontal pressing portion 81P1. The second horizontal heat dissipation plate 831b may extend along the second horizontal pressing portion 81P2 and cover at least a portion of the second horizontal pressing portion 81P2. For example, the first horizontal heat dissipation plate 831a and the second horizontal heat dissipation plate 831b may have the same horizontal bar shape.

[0078] The vertical heat dissipation plate 835 may extend longer in the vertical direction. The first vertical heat dissipation plate 835a may extend along the first vertical pressing portion 81Q1 and cover at least a portion of the first vertical pressing portion 81Q1. The second vertical heat dissipation plate 835b may extend along the second vertical pressing portion 81Q2 and cover at least a portion of the second vertical pressing portion 81Q2. The third vertical heat dissipation plate 835c may extend along the third vertical pressing portion 81Q3 and cover at least a portion of the third vertical pressing portion 81Q3. The fourth vertical heat dissipation plate 835d may extend along the fourth vertical pressing portion 81Q4 and cover at least a portion of the fourth vertical pressing portion 81Q4. For example, the first to fourth vertical heat dissipation plates 835a, 835b, 835c, 835d may have the same fork shape. Here, the fork-shaped vertical heat dissipation plate 835 may include a main body 8350 that is longer in the length direction of the vertical heat dissipation plate 835 and a plurality of legs 8351, 8352, 8353, 8354 protruding from one long side of the main body 8350. For example, the plurality of legs 8351, 8352, 8353, 8354 of the first vertical heat dissipation plate 835a and the second vertical heat dissipation plate 835b may face the right side, and the plurality of legs 8351, 8352, 8353, 8354 of the third vertical heat dissipation plate 835c and the fourth vertical heat dissipation plate 835d may face the left side.

[0079] and Figure 3 Refer to Fig.15 , the heat sink 83 may include a vertical heat sink 832 instead of Fig.14 Vertical heat sink 835.

[0080] The vertical heat dissipation plate 832 may extend longer in the vertical direction. The first vertical heat dissipation plate 832a may extend along the first vertical pressing portion 81Q1 and cover at least a portion of the first vertical pressing portion 81Q1. The second vertical heat dissipation plate 832b may extend along the second vertical pressing portion 81Q2 and cover at least a portion of the second vertical pressing portion 81Q2. The third vertical heat dissipation plate 832c may extend along the third vertical pressing portion 81Q3 and cover at least a portion of the third vertical pressing portion 81Q3. The fourth vertical heat dissipation plate 832d may extend along the fourth vertical pressing portion 81Q4 and cover at least a portion of the fourth vertical pressing portion 81Q4. For example, the first to fourth vertical heat dissipation plates 832a, 832b, 832c, 832d may have the same vertical bar shape.

[0081] and Figure 3 Refer to Fig.16 , the heat sink 83 may include Fig.15 The horizontal heat dissipation plate 831 and the vertical heat dissipation plate 832 also include a middle heat dissipation plate 833.

[0082] The intermediate heat dissipation plate 833 may extend long in the horizontal direction. The first intermediate heat dissipation plate 833a may extend along the first intermediate pressing portion 81R1 and cover at least a portion of the first intermediate pressing portion 81R1. The second intermediate heat dissipation plate 833b may extend along the second intermediate pressing portion 81R2 and cover at least a portion of the second intermediate pressing portion 81R2. The third intermediate heat dissipation plate 833c may extend along the third intermediate pressing portion 81R3 and cover at least a portion of the third intermediate pressing portion 81R3.

[0083] Reference Fig.17 and Fig.18 The pin 83p may protrude rearward from the back surface of the heat sink 83. The plurality of pins 83p may be spaced apart from each other on the heat sink 83.

[0084] The pin hole 80h can be formed in the base 81 of the frame 80 and aligned with the pin 83p. Each of the plurality of pins 83p can pass through the plurality of pin holes 80h respectively. A user or a mechanical device can use a hammer or a forming die to hit the end of the pin 83p passing through the pin hole 80h to deform it, and the end of the deformed pin 83p can be stuck to the back of the base 81. That is, the pin 83p can function as a rivet. In addition, the edge of the end of the deformed pin 83p can be caulking. Thus, the heat sink 83 can be coupled to the base 81 of the frame 80.

[0085] Reference Fig.19 The recessed portion 81T may form a step that descends from the front of the flat plate portion 81F to the rear. The recessed portion 81T may be formed by pressing from the front of the flat plate portion 81F to the rear. The recessed portion 81T may be formed around the pressing portion 81G, and the step (height difference) formed by the recessed portion 81T relative to the flat plate portion 81F is smaller than the step (see FIG. 1 ) formed by the pressing portion 81G relative to the flat plate portion 81F. Fig. 22 ). The recessed portion 81T may be referred to as a stepped portion 81T.

[0086] The pin hole 80h may be formed in the recessed portion 81T of the base 81. The heat sink 83 may be located on the recessed portion 81T, and the pin 83p of the heat sink 83 may penetrate the pin hole 80h of the recessed portion 81T and be coupled to the recessed portion 81T.

[0087] Thus, the heat sink 83 can be combined with the recessed portion 81T of the base 81. The distance R3 (i.e., step) between the front surface of the flat portion 81F and the front surface of the recessed portion 81T can be equal to or greater than the thickness t3 of the heat sink 83 on the recessed portion 81T. For example, the thickness t3 can be smaller than the distance R3, in which case, even if the heat sink 83 is not flat, the front surface of the heat sink 83 will not protrude further forward than the front surface of the flat portion 81F.

[0088] Reference Fig. 20 and Fig.21 , the plurality of heat sinks 831, 832, 833 may be located on the front surface of the base 81 of the frame 80, and the plurality of substrates 43 may be located on the portion of the base 81 not covered by the plurality of heat sinks 831, 832, 833 and the plurality of heat sinks 831, 832, 833. The plurality of substrates 43 may be combined or attached to the portion of the base 81 and the plurality of heat sinks 831, 832, 833. For example, the plurality of substrates 43 may be attached to the portion of the base 81 and the plurality of heat sinks 831, 832, 833 by means of a double-sided tape.

[0089] The plurality of legs 432 of the base plate 43 may be oriented in a horizontal direction or in a vertical direction (see Figure 7 ). For example, the first substrate 43a, the third substrate 43c and the fifth substrate 43e may be adjacent to the upper side 80U of the frame 80 and arranged in a row, and the plurality of legs 432 of the first substrate 43a, the third substrate 43c and the fifth substrate 43e may face the right side. For example, the second substrate 43b, the fourth substrate 43d and the sixth substrate 43f may be adjacent to the lower side 80D of the frame 80 and arranged in a row, and the plurality of legs 432 of the second substrate 43b, the fourth substrate 43d and the sixth substrate 43f may face the left side. Alternatively, the bar-shaped substrate 41 (refer to Figure 5 ) or a plate-shaped substrate 42 (refer to Figure 6 ) and other substrates in various forms may also replace substrate 43.

[0090] On the other hand, a device EC such as a capacitor, an integrated device, or a Zener diode may be mounted on the main body 431 of the substrate 43. A relatively higher temperature may be formed in the area corresponding to the main body 431 than in the area corresponding to the plurality of legs 432. The reflective sheet 60 on the main body 431 may float slightly forward due to the plurality of devices EC compared to the reflective sheet 60 on the plurality of legs 432. Fig. 20 As shown, the main body 431 of the plurality of substrates 43 may be configured in a "Z" shape, thereby minimizing the impact of the imbalance between the main body 431 and the plurality of legs 432 on the display quality.

[0091] Reference Fig. 22, the heat sink 83 can cover the pressing portion 81Q. The first portion of the substrate 40 can be located on the flat portion 81F of the base 81, and the second portion of the substrate 40 can face the heat sink 83 located on the recessed portion 81T. Thus, the heat sink 83 can prevent the substrate 40 from floating relative to the pressing portion 81Q. In addition, the heat of the first portion of the substrate 40 can be easily transferred to the flat portion 81F, and the heat of the second portion of the substrate 40 can also be easily transferred to the heat sink 83, thereby improving the image quality of the display.

[0092] The interval t8 between the back surface of the second portion of the substrate 40 and the front surface of the recessed portion 81T may be greater than or equal to the thickness of the heat sink 83. Thus, the first portion and the second portion of the substrate 40 may be located on the same plane. That is, the light source 51 on the first portion of the substrate 40 and the optical portion 30 (see Figure 3 ) and the distance between the light source 51 and the optical portion 30 on the second portion of the substrate 40 may be the same. In addition, the bonding stability of the substrate 40, the frame 80 and the heat dissipation plate 83 may be improved.

[0093] Reference Fig.23 and Fig.24 The coupling portion 83s may be formed on the heat dissipation plate 83. The coupling portion 83s may be formed by pressing forward from the back side of the heat dissipation plate 83. The coupling portion 83s may be formed by extending in a horizontal direction or a vertical direction. The coupling portion 83s may include a first hole OPa, a second hole OPb, an insertion hole OPc1, and an insertion groove OPc2.

[0094] The first hole OPa may be adjacent to one end of the coupling portion 83s and formed through the coupling portion 83s. The first hole OPa may be a circular hole.

[0095] The second hole OPb may be adjacent to the other end of the coupling portion 83s and formed through the coupling portion 83s. The second hole OPb may be a long hole in the length direction of the coupling portion 83s.

[0096] The insertion hole OPc1 may be located between the first hole OPa and the second hole OPb and formed through the coupling portion 83s. The insertion hole OPc1 may be closer to the second hole OPb than the first hole OPa. The insertion hole OPc1 may be a longer hole in the length direction of the coupling portion 83s.

[0097] The insertion groove OPc2 may be formed at a portion forming a boundary of the insertion hole OPc1 of the coupling portion 83s. A first portion (not shown) of the insertion groove OPc2 may be formed from a first long side of the insertion hole OPc1 of the coupling portion 83s toward the inner side of the coupling portion 83s. A second portion (not shown) of the insertion groove OPc2 may be formed from a second long side of the insertion hole OPc1 of the coupling portion 83s toward the inner side of the coupling portion 83s. The first portion and the second portion may be closer to the second hole OPb than the first hole OPa.

[0098] The reflection sheet 60 may cover the heat sink 83 and be coupled to the heat sink 83. The reflection sheet 60 may have a hole 601 where the lens 53 is located and a slot 60s where the coupling portion 83s is located.

[0099] The support member 39 may include a body 391, a shoulder 392, a head 393, and legs 393a, 393b, 393c, and 393d. The support member 39 may be made of a material such as plastic or resin and have elasticity.

[0100] The main body 391 may have a long bar shape in the length direction of the coupling portion 83s. The shoulder 392 may have a semicircular shape with a concave center portion as a whole, and one end and the other end of the shoulder 392 may be fixed to the front of the main body 391. The head 393 may protrude forward from the center portion of the shoulder 392. The legs 393a, 393b, 393c, 393d may protrude backward from the back of the main body 391. The legs 393a, 393b, 393c, 393d may include a first stopper 393a, a second stopper 393b, a protrusion 393c, and a stopper 393d.

[0101] The first stopper 393a may be adjacent to one end of the body 391. A diameter of the first hole OPa may be slightly greater than or equal to a diameter of the first stopper 393a.

[0102] The second stopper 393b may be adjacent to the other end of the body 391. The length of the minor axis of the second hole OPb may be slightly greater than or equal to the diameter of the second stopper 393b. The length of the major axis of the second hole OPb may be greater than the diameter of the second stopper 393b.

[0103] The projection 393c may be located between the first stopper 393a and the second stopper 393b. The projection 393c may be formed to extend leftward and rightward along the length direction of the body 391. The length of the minor axis of the insertion hole OPc1 may be slightly greater than or equal to the width W31 of the projection 393c. The length of the major axis of the insertion hole OPc1 may be greater than the length of the projection 393c.

[0104] The stopper 393d may be formed on both sides of the protrusion 393c. The stopper 393d may be formed parallel to the back side of the protrusion 393c (see Fig.13 The distance between the first portion and the second portion of the insertion groove OPc2 may be slightly greater than or equal to the width W32 of the locking portion 393d.

[0105] The support member 39 may be located in front of the coupling portion 83s. The second stopper 393b may be inserted into one side of the second hole OPb. The stopper 393d may be inserted into the insertion groove OPc2. At this time, the first stopper 393a may be located between the insertion hole OPc1 and the first hole OPa and contact the front of the coupling portion 83s.

[0106] Reference Fig.25 and Fig.26 , the second stopper 393b can be moved from one side of the second hole OPb to the opposite side. The protrusion 393c can be moved from one side of the insertion hole OPc1 to the opposite side. The first stopper 393a can be moved from the front side of the coupling portion 83s toward the first hole OPa and inserted into the first hole OPa. At this time, the locking portion 393d can be locked on the back side of the coupling portion 83s.

[0107] Thus, the user can slide the support member 39 to or from the coupling portion 83s. In addition, the width of the main body 391 of the support member 39 can be greater than the slot 60s of the reflective sheet 60 (see FIG. Fig.23 That is, the support member 39 can press the front side of the reflective sheet 60.

[0108] The length L39 of the support member 39 may be greater than the interval Da between the plurality of lenses 53 in the length direction of the support member 39. The length L39 of the support member 39 may be greater than twice the interval Da and less than three times the interval Da (Db). For example, the first to fourth lenses 53 may be arranged in a row in the horizontal direction. In this case, one end of the support member 39 may be close to the first lens 53 between the first lens 53 and the second lens 53, and the other end of the support member 39 may be close to the fourth lens 53 between the third lens 53 and the fourth lens 53.

[0109] A plurality of support members 39 (see Figure 2 ) can be detachably coupled to the plurality of coupling portions 83s. The number and arrangement of the plurality of support members 39 provided in the display device can be variably determined in consideration of the size of the display panel 10 and the installation environment.

[0110] Reference Fig. 27The support member 39 may be located between the reflection sheet 60 and the diffusion plate 31 of the optical part 30. The head 393 of the support member 39 may be adjacent to the back surface of the diffusion plate 31. The back surface of the diffusion plate 31 may contact and be supported by the head 393.

[0111] Reference Fig.28 and Fig.29 The length and width of the heat sink 83 may be determined in consideration of the configuration of the support member 39. The plurality of joints 83s may be formed on the plurality of vertical heat sinks 832. The widths (see Wa, Wb) of the plurality of vertical heat sinks 832 may be the same as or different from each other.

[0112] Reference Fig.28 For example, the fixing portion 80M may be located in the area between the third vertical heat dissipation plate 832c and the fourth vertical heat dissipation plate 832d of the base 81, and may be formed by pressing from the front to the rear of the flat plate portion 81F of the base 81. The coupling portion 83s may not be located in the area where the fixing portion 80M is located in the base 81. Alternatively, the coupling portion 83s may be located in the area where the fixing portion 80M is located in the base 81 and separated from the fixing portion 80M, and the coupling portion 83s may be formed by pressing from the back to the front of the flat plate portion 81F. The coupling portion 83s formed on the heat dissipation plate 83 may be referred to as a first coupling portion 83s or a heat dissipation plate coupling portion 83s, and the coupling portion 83s formed on the flat plate portion 81F may be referred to as a second coupling portion 83s or a frame coupling portion 83s.

[0113] Reference Fig.29 In another example, the coupling portion 83s may be located in the area where the fixing portion 80M is located in the base 81 and overlap the fixing portion 80M in front and back. In this case, since the fixing portion 80M is already formed on the flat portion 81F, the coupling portion 83s may not be formed on the flat portion 81F. Fig.29 The width Wb of the third vertical heat dissipation plate 832c may be increased to cover the fixing portion 80M, and the coupling portion 83s may be formed at a position corresponding to the fixing portion 80M by pressing from the back side of the third vertical heat dissipation plate 832c toward the front.

[0114] Reference Figures 1 to 29A display device according to one aspect of the present invention may include: a display panel; a frame having a pressing portion and located behind the display panel; a heat sink located between the display panel and the frame; a substrate located between the display panel and the heat sink; and a plurality of light sources located on the substrate. The front side of the frame facing the display panel may include: a first area on which the pressing portion is formed; and a second area, which is an area other than the first area. The heat sink may have an area smaller than the front side of the frame and cover the first area. The substrate may be located on the heat sink and the second area.

[0115] The area of ​​the heat dissipation plate may be less than half of the area of ​​the front surface of the frame.

[0116] The pressing portion may be formed by pressing the frame from the front side toward the rear side.

[0117] The frame may include a recessed portion located around the pressing portion and forming a step lowered from the front surface of the frame, and the heat dissipation plate may be located on the recessed portion and between the substrate and the pressing portion.

[0118] The recessed portion may be formed by pressing the pressing portion from the front side toward the rear side.

[0119] The frame may include a pin hole formed in the recessed portion, the heat sink may include a pin protruding from a rear surface of the heat sink and passing through the pin hole, and a distal end of the pin may be locked at the rear surface of the recessed portion.

[0120] A distance between a rear surface of the substrate and a front surface of the recessed portion may be greater than or equal to a thickness of the heat dissipation plate.

[0121] The substrate may include a plurality of substrates adjacent to each other, each of the plurality of substrates may include: a plate-shaped body; and a plurality of legs protruding from one side of the body and spaced apart from each other, and the plurality of bodies of the plurality of substrates may be configured in a "Z" shape on the frame.

[0122] The display device may further include: an optical part located between the display panel and the substrate; and a support member located between the optical part and the substrate and supporting the back side of the optical part, and the heat dissipation plate may include a coupling part formed on the heat dissipation plate and coupled to the support member.

[0123] The frame may further include a fixing portion formed by pressing backward from the front side of the frame and spaced apart from the pressing portion, and the coupling portion may be formed by pressing forward from the rear side of the heat sink and overlap the fixing portion in the front-rear direction.

[0124] The frame may further include a frame combining portion formed on the frame and spaced apart from the heat dissipation plate, and the support member may include: a first support member combined with the combining portion; and a second support member combined with the frame combining portion.

[0125] The display device may further include a reflective sheet covering the front surface of the substrate and having a plurality of holes where the plurality of light sources are located, and the support member may penetrate the reflective sheet and be combined with the combining portion to press the reflective sheet toward the substrate.

[0126] The pressing portion may include a plurality of pressing portions intersecting each other, and the heat dissipation plate may cover the plurality of pressing portions.

[0127] The heat dissipation plate may include a plurality of heat dissipation plates covering the plurality of pressing portions, and the plurality of heat dissipation plates may include: a first heat dissipation plate; and a second heat dissipation plate having the same shape as the first heat dissipation plate.

[0128] The plurality of heat dissipation plates may include: a plurality of horizontal heat dissipation plates extending in a horizontal direction; and a plurality of vertical heat dissipation plates extending in a vertical direction. The plurality of horizontal heat dissipation plates may have the same shape as each other, and the plurality of vertical heat dissipation plates may have the same shape as each other.

[0129] Any of the aforementioned embodiments or other embodiments of the present invention are not exclusive or different from each other. The various components or functions of any of the aforementioned embodiments or other embodiments of the present invention may be mixed or combined.

[0130] For example, it means that the A structure described in a specific embodiment and / or drawings can be combined with the B structure described in other embodiments and / or drawings. That is, even if the combination between the structures is not directly described, it means that they can be combined unless it is clearly stated that they cannot be combined.

[0131] The detailed descriptions described above should not be interpreted as limiting in all aspects, but should be understood as exemplary. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention fall within the scope of the present invention.

Claims

1. A display device, wherein: include: Display panel; a frame having a pressing portion and located behind the display panel; A heat dissipation plate, located between the display panel and the frame; A substrate, located between the display panel and the heat sink; as well as A plurality of light sources are located on the substrate. The front side of the frame facing the display panel includes: A first area, in which the pressing portion is formed; as well as A second area, an area other than the first area, The heat dissipation plate has an area smaller than the front surface of the frame and covers the first region, The substrate is located on the heat dissipation plate and the second area.

2. The display device according to claim 1, wherein: The area of ​​the heat dissipation plate is less than or equal to half the area of ​​the front surface of the frame.

3. The display device according to claim 1, wherein: The pressing portion is formed by pressing the frame from the front side toward the rear side.

4. The display device according to claim 3, wherein: The frame includes a recessed portion located around the pressing portion and forming a step lowered from the front surface of the frame, The heat dissipation plate is located on the recessed portion and between the substrate and the pressing portion.

5. The display device according to claim 4, wherein: The recessed portion is formed by pressing the pressing portion from the front side toward the rear side.

6. The display device according to claim 4, wherein: The frame includes a pin hole formed in the recessed portion, The heat sink includes a pin protruding from the back side of the heat sink and penetrating the pin hole, The end of the pin is locked on the back side of the recessed portion.

7. The display device according to claim 4, wherein: The distance between the back surface of the substrate and the front surface of the recessed portion is greater than or equal to the thickness of the heat dissipation plate.

8. The display device according to claim 1, wherein: The substrate includes a plurality of substrates adjacent to each other. Each of the plurality of substrates comprises: a plate-shaped body; and A plurality of legs protruding from one side of the body and spaced apart from each other, The plurality of bodies of the plurality of substrates are configured in a "Z" shape on the frame.

9. The display device according to claim 1, wherein: Also includes: an optical part, located between the display panel and the substrate; and a support member, located between the optical part and the substrate and supporting the back side of the optical part, The heat dissipation plate includes a coupling portion formed on the heat dissipation plate and coupled to the support member.

10. The display device according to claim 9, wherein: The frame further includes a fixing portion formed by pressing backward from the front surface of the frame and spaced apart from the pressing portion, and the coupling portion is formed by pressing forward from the rear surface of the heat sink and overlaps with the fixing portion in the front-rear direction.

Images