Display device

Abstract

The invention relates to a display device. A display device 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 coupled to the frame; a plurality of light sources located on the substrate and providing light to the display panel; an optical part located between the display panel and the plurality of light sources; and a support member coupled to the frame and supporting the optical portion. The support member includes a base located between the frame and the substrate; and a support portion protruding forward from the base, passing through the substrate, and supporting a back surface of the optical portion.

Description

Technical Field

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

[0002] With the development of the information society, the demand for display devices has continued to increase in various forms. Correspondingly, in recent years, various display devices such as LCD (Liquid Crystal Display Device), PDP (Plasma Display Panel), ELD (Electro Luminescent Display), VFD (Vacuum Fluorescent Display), and OLED (Organic Light Emitting Diode) have been studied and used.

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

[0004] Recently, as display devices have been developing higher-quality images, research on backlight units that provide high-brightness light to display panels has been conducted. In addition, research on the structure of support members that support diffuser plates has also been actively conducted. Summary of the Invention

[0005] Problems to be solved by the invention

[0006] The present invention aims to solve the aforementioned problems and other problems.

[0007] Another object of the present invention is to simply combine a plurality of support members and improve the manufacturing efficiency of the display device.

[0008] Another object of the present invention may be to provide a display device capable of improving the degradation of light performance of a backlight unit.

[0009] Another object of the present invention may be to provide a display device capable of maintaining the interval between a diffusion plate and a light source at a predetermined level.

[0010] Another object of the present invention may be to provide a structure that improves the stability of a support member coupled to a frame.

[0011] Another object of the present invention is to provide a support member that can effectively support a diffuser plate according to the sagging degree of the diffuser plate.

[0012] Technical solutions to the problem

[0013] According to one aspect of the present invention for achieving the above-mentioned purpose 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 coupled to the frame; a plurality of light sources located on the substrate and providing light to the display panel; an optical part located between the display panel and the plurality of light sources; and a support member coupled to the frame and supporting the optical part; the support member includes: a base located between the frame and the substrate; and a support portion protruding forward from the base, passing through a slit formed in the substrate and supporting the back side of the optical part.

[0014] Effects of the Invention

[0015] Hereinafter, the effects of the display device of the present invention will be described.

[0016] According to at least one of the embodiments of the present invention, a plurality of support members can be simply combined, and the manufacturing efficiency of the display device can be improved.

[0017] According to at least one of the embodiments of the present invention, a display device capable of improving degradation of light performance of a backlight unit can be provided.

[0018] According to at least one of the embodiments of the present invention, a display device capable of maintaining the interval between a diffusion plate and a light source at a prescribed level can be provided.

[0019] According to at least one of the embodiments of the present invention, a structure for improving the stability of a support member coupled to a frame can be provided.

[0020] According to at least one of the embodiments of the present invention, a support member capable of effectively supporting a diffusion panel according to a sagging degree of the diffusion panel can be provided.

[0021] From the following detailed description, the scope of the additional application of the present invention will become apparent. However, those skilled in the art will clearly understand the various changes and modifications within the scope and spirit of the present invention, and it should be understood that the detailed description and specific embodiments such as the preferred embodiments of the present invention are provided by way of example only. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figures 1 to 16 FIG. 1 is a diagram showing an example of a display device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the accompanying 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.

[0024] The suffixes "module" and "section" used in the following description for constituent elements are given or used interchangeably for the sake of convenience in writing the specification, and do not have any meaning or function to distinguish one from another.

[0025] In addition, when describing the embodiments disclosed in this specification, if it is determined that a detailed description of related known technologies may obscure the main points of the embodiments disclosed in this specification, such detailed description will be omitted. In addition, the drawings are only used to facilitate understanding of the embodiments disclosed in this specification, and the technical concepts disclosed in this specification are not limited by the drawings and should be understood to include all modifications, equivalents, and alternatives within the scope of the concepts and technologies of this specification.

[0026] Terms including ordinal numbers such as "first" and "second" may be used to describe various components, but the components are not limited by these terms. These terms are used only to distinguish one component from other components.

[0027] When a component is referred to 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 be present between them. Conversely, if a component is referred to as being “directly connected” or “directly linked” to another component, it should be understood that no other components exist between them.

[0028] Unless the context clearly indicates otherwise, an expression in the singular includes an expression in the plural.

[0029] In this application, the terms "include" or "have" are only used to specify the existence of the features, numbers, steps, actions, constituent elements, parts or their combinations recorded in the specification, and are not intended to exclude the existence or possibility of adding one or more other features or numbers, steps, actions, constituent elements, parts or their combinations.

[0030] Reference Figure 1 The display device 1 may include a display panel 10. The display panel 10 may display images.

[0031] The display device 1 may include: a first long side LS1; a second long side LS2 opposite the first long side LS1; a first short side SS1 adjacent to the first long side LS1 and the second long side LS2; and a second short side SS2 opposite the first short side SS1. On the other hand, although the diagram illustrates a case where the lengths of the first long side LS1 and the second long side LS2 are greater than the lengths of the first short side SS1 and the second short side SS2 for ease of explanation, the lengths of the first long side LS1 and the second long side LS2 may be substantially the same as the lengths of the first short side SS1 and the second short side SS2.

[0032] 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 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 direction perpendicular to the long sides LS1 and LS2 and the short sides SS1 and SS2 of the display device 1 may be referred to as the front-back direction or the third direction DR3.

[0033] The direction in which the display panel 10 displays an image can be referred to as the front F, z, and the opposite direction can be referred to as the rear R. The first long side LS1 side can be referred to as the upper side U, y. The second long side LS2 side can be referred to as the lower side D. The first short side SS1 side can be referred to as the left side Le, x. The second short side SS2 side can be referred to as the right side Ri.

[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 edges of the display device 1. In addition, the intersection of 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 corners.

[0035] For example, the intersection of the first short side SS1 and the first long side LS1 can be called a first corner C1. The intersection of the first long side LS1 and the second short side SS2 can be called a second corner C2. The intersection of the second short side SS2 and the second long side LS2 can be called a third corner C3. The intersection of the second long side LS2 and the first short side SS1 can be called a fourth corner C4.

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

[0037] The display panel 10 can form the front of the display device and can display images. The display panel 10 can display images by causing a plurality of pixels to output RGB (Red, Green, or Blue) of each pixel at regular intervals. The display panel 10 can be divided into an active area (active area) for displaying images and an inactive area (de-active area) for not displaying images. The display panel 10 may include a front substrate (front substrate) and a rear substrate (rear substrate) facing each other with a liquid crystal layer interposed therebetween. The display panel 10 may be referred to as an LCD panel.

[0038] The front substrate may include a plurality of pixels composed of red, green, and blue sub-pixels, and may output light corresponding to red, green, or blue according to a control signal.

[0039] The back substrate may include a plurality of switching devices. 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 an external source. The liquid crystal layer may include a plurality of liquid crystal molecules. The arrangement of the plurality of liquid crystal molecules may change in response to a voltage difference generated between the pixel electrodes and a common electrode. The liquid crystal layer may transmit light provided by the backlight unit to the front substrate or block the light.

[0040] The side frames 20 may extend along the periphery of the display panel 10. The side frames 20 may cover the sides of the display panel 10. The side frames 20 may be combined with the display panel 10 and may support the display panel 10. The side frames 20 may be referred to as guide panels.

[0041] The backlight unit may be located behind the display panel 10. The backlight unit may be coupled to the frame 80 in front of the frame 80. The backlight unit may be driven in an overall driving mode or in a local driving mode such as local dimming or impulse. The backlight unit may include a plurality of light sources 51 that provide light to the front, a substrate 40 on which the plurality of light sources 51 are mounted, a plurality of lenses 53 that cover the plurality of light sources 51, a reflective sheet 60 that covers the front surface of the substrate 40, and an optical portion 30 located in front of the reflective sheet 60.

[0042] Light source 51 may be an LED (Light Emitting Diode) chip or a package including at least one LED chip. For example, light source 51 may be a colored LED that emits at least one of red, blue, green, or other colors, or a white LED. For example, light source 51 may be a miniLED (micro light emitting diode). A power supply (not shown) for the display device may provide power to light source 51 via substrate 40.

[0043] The plurality of lenses 53 can respectively cover the plurality of light sources 51. A housing (not shown) can be formed on the bottom surface of the lens 53 and can surround the light source 51. A dome (not shown) can form the top surface of the lens 53 and can be roughly hemispherical. The lens 53 may include at least one of silicone, polymethyl methacrylate (PMMA) and polycarbonate (PC). The light provided from the light source 51 is refracted or reflected by the lens 53, so that it can be diffused at a wider directional angle than the light source 51.

[0044] The reflective sheet 60 may include at least one of a metal and a metal oxide as a reflective material. For example, the reflective sheet 60 may include a metal and / or metal oxide having high reflectivity, such as at least one of aluminum (Al), silver (Ag), gold (Au), and titanium dioxide (TiO2). For example, a resin may be deposited or coated on the reflective sheet 60 to diffuse the light from the light source 51.

[0045] The optical part 30 may face the display panel 10 with the side frame 20 as a reference. The optical part 30 may uniformly transmit the light from the light source 51 to the display panel 10. The optical part 30 may include a diffusion plate 31 and an optical sheet 32.

[0046] The diffuser plate 31 may be located between the reflective sheet 60 and the optical sheet 32. The diffuser plate 31 may diffuse the light from the light source 51. Furthermore, an air gap may be formed between the reflective sheet 60 and the diffuser plate 31. The air gap may function as a buffer, and the light from the light source 51 may be widely diffused by the air gap.

[0047] 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, and the plurality of sheets may be bonded or in close contact with 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. The diffuser sheet may uniformly distribute light by preventing light emitted from the diffuser plate 31 from being partially concentrated. The prism sheet may concentrate light emitted from the diffuser sheet and provide it to the display panel 10. In this case, the number and / or position of the diffuser sheet and the prism sheet may be modified.

[0048] For example, the optical sheet 32 can change the wavelength or color of the light provided by the light source 51. For example, the optical sheet 32 can include a red phosphor and / or a green phosphor. In this case, the light source 51 can provide blue light, and the optical sheet 32 can change the light from the light source 51 to white. The optical sheet 32 can be called a QD sheet (Quantum Dot Sheet).

[0049] The frame 80 may be located behind the backlight unit. The display panel 10, side frames 20, and the backlight unit may be coupled to the frame 80. The frame 80 may support the components of the display device described above and below. For example, the frame 80 may be made of a metal material such as aluminum alloy. The frame 80 may also be referred to as a main frame, module cover, or cover bottom.

[0050] 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 article made of resin. As another example, the rear cover 90 may be made of metal.

[0051] The support member 39 may include a base 391. The base 391 may be formed on one side of the support member. The base 391 may be located between the frame 80 and the substrate 40. The base 391 may be located between the heat dissipation plate 83 and the substrate 40.

[0052] The support member 39 may include a support portion 394. The support portion 394 may be formed on the other side of the support member 39. The support portion 394 may protrude forward from the base 391. The support portion 394 may pass through a first slit 40s formed in the substrate 40. The support portion 394 may pass through a second slit 60s formed in the reflective sheet 60. The support portion 391 may support the back surface of the diffuser plate 31.

[0053] The support member 39 may space the optical portion 30 forward from the substrate 40 and the reflective sheet 60. The support member 39 may be referred to as a spacer.

[0054] Reference Figure 3 The frame 80 may include a flat plate portion 81. The flat plate portion 81 may form a central region of the frame 80. The heat dissipation plate 83 may cover the front of the flat plate portion 81 and may be combined with the flat plate portion 81. The front surface of the heat dissipation plate 83 may be flat.

[0055] Side portions 70 may be disposed at the edges of heat sink 83. Side portions 70 may include at least one of a metal and a metal oxide as a reflective material. For example, side portions 70 may include a metal and / or metal oxide having high reflectivity, such as at least one of aluminum (Al), silver (Ag), gold (Au), and titanium dioxide (TiO2). For example, resin may be deposited or coated on side portions 70.

[0056] Also, the side portion 70 may include a first side portion 71, a second side portion 72, a third side portion 73, and a fourth side portion 74. The side portion 70 may be referred to as a chamfer portion.

[0057] The support member 39 can be disposed on the front surface of the heat sink 83. The support member 39 can be bonded to the front surface of the heat sink 83. For example, the support member 39 can be bonded to the front surface of the heat sink 83 using an adhesive or adhesive tape. As another example, the support member 39 can also be bonded to the front surface of the flat plate portion 81.

[0058] The base 391 may extend long in the left-right direction. A plurality of bases 391 may be spaced apart and arranged in the vertical direction. A support portion 394 may protrude forward from the base 391. A plurality of support portions 394 may be provided on a single base 391. In any single base 391, a plurality of support portions 394 may be spaced apart and arranged along the length of the base 391. As another example, a single support portion 394 may be formed on any single base 391.

[0059] Reference Figures 4 to 6 The heat sink 83 may be provided with a base groove 834. The base groove 834 may be formed by being recessed from the front to the rear of the heat sink 83. The base groove 834 may extend long in the left-right direction. A plurality of base grooves 834 may be spaced apart and arranged in the vertical direction. The base groove 834 may also be provided on the frame 80.

[0060] The base groove 834 can be recessed into a shape that roughly corresponds to the base 391. The base 391 can be inserted into or placed in the base groove 834. The back of the base 391 can be supported by the base groove 834, and the front of the base 391 can be exposed from the base groove 834 to the front of the heat sink 83. The front of the base 391 inserted into the base groove 834 can be at the same height as the front of the heat sink 83. A plurality of bases 391 can be inserted into the plurality of base grooves 834, respectively. The base 391 can be supported by the base groove 834.

[0061] Reference Figure 4 , a support portion 394 may be formed on a base 391. Figure 5A plurality of support portions 394 may be formed on a base 391 , and the plurality of support portions 394 may be spaced apart and arranged along the length direction of the base 931 .

[0062] Reference Figure 6 The bridge portion 395 can connect the plurality of bases 391. For example, the bridge portion 395 can extend from any base 391a toward the adjacent base 391b and connect a pair of adjacent bases 391a and 391b. As an example, the bridge portion 395 can be integrally formed with the base 391. The plurality of bridge portions 395 can be spaced apart and arranged along the length of the base 391 between the pair of bases 391a and 391b.

[0063] As another example, the bridge portion 395 may be detachably coupled to the base 391. Thus, after manufacturing support members 39 of the same shape, multiple support members 39 may be connected using the bridge portion 395 as needed, thereby reducing the cost required to manufacture various types of products.

[0064] The bridge groove 835 can be formed by recessing the front surface of the heat sink 83 toward the rear. The bridge groove 835 can connect the plurality of base grooves 834. For example, the bridge groove 835 can extend from one base groove 834a toward the other base groove 834b, connecting a pair of adjacent base grooves 834a and 834b. The plurality of bridge grooves 835 can be spaced apart and arranged along the length of the base groove 834 between the pair of base grooves 834a and 834b.

[0065] The bridge portion 395 is inserted into or placed in the bridge groove 835 . The back surface of the bridge portion 395 inserted into the bridge groove 835 may contact the bridge groove 835 , and the front surface of the bridge portion 395 may correspond to the height of the front surface of the heat dissipation plate 83 .

[0066] Thus, the process of setting up a plurality of support structures can be simplified and manufacturing efficiency can be improved. In addition, the support member 39 can be prevented from detaching and the structural stability can be improved.

[0067] Reference Figure 7 The substrate 40 may cover the front of the heat sink 83 and may be bonded to the heat sink 83. For example, the substrate 40 may include at least one of polycarbonate (PC), polyethylene terephthalate (PET), glass, and silicone. The substrate 40 may be a printed circuit board (PCB).

[0068] The substrate 40 may have a quadrilateral plate shape. The substrate 40 may include at least one substrate. The substrate 40 may include a plurality of adjacent substrates 41, 42, 43, 44, 45, 46, 47, 48, and 49. The first substrate 41, the second substrate 42, the third substrate 43, the fourth substrate 44, the fifth substrate 45, the sixth substrate 46, the seventh substrate 47, the eighth substrate 48, and the ninth substrate 49 may be arranged on an imaginary horizontal plane (i.e., an XY plane). The plurality of substrates 41, 42, 43, 44, 45, 46, 47, 48, and 49 may be respectively coupled to the plurality of regions 83A1, 83A2, 83A3, 83A4, 83A5, 83A6, 83A7, 83A8, and 83A9 of the heat sink 83.

[0069] The plurality of lenses 53 may respectively cover the plurality of light sources 51 mounted on the substrate 40. A power supply (not shown) of the display device may supply power to the light sources 51 via a connector (not shown) mounted on the back surface of the substrate 40.

[0070] The substrate 40 may be provided with a first slit 40s corresponding to the support portion 394. A plurality of first slits 40s may be formed, and each slit 40s may be formed at a position corresponding to each of the plurality of support portions 394. The first slit 40s extends long in the left-right direction and may be large enough to allow the support portion 394 to pass through. The substrate 40 covers the front of the base 391 of each of the plurality of support members 39, and the support portion 394 may protrude toward the front of the substrate 40 through the first slit 40s.

[0071] The width w21 of the support portion 394 may be smaller than the width w22 of the base 391. The width w11 of the first slit 40s may be larger than the width w21 of the support portion 394 and smaller than the width w22 of the base 391. The length L11 of the first slit 40s may be larger than the length L21 of the support portion 394. Thus, the support portion 394 can pass through the first slit 40s, while the base 391 cannot pass through the first slit 40s, so that the base 391 can be covered or supported by the substrate 40 around the first slit 40s (see Figure 11 ).

[0072] Reference Figure 8 The substrate 40 may cover the front of the heat sink 83 and may be coupled to the heat sink 83. For example, the substrate 40 may include at least one of polycarbonate (PC), polyethylene terephthalate (PET), glass, and silicone. The substrate 40 may be a PCB (Printed Circuit Board).

[0073] For example, the base plate 40 may include a plurality of straps that extend long in the horizontal direction and are spaced apart from each other in the vertical direction.

[0074] As another example, the substrate 40 may have a fork shape as a whole. The substrate 40 may include a first plate 40a and a plurality of second plates 40b. The first plate 40a may extend vertically. The plurality of second plates 40b may extend horizontally from a long side of the first plate 40a and be spaced apart from each other in the vertical direction. The support portion 394 may pass through the gaps 54 formed between the plurality of second plates 40b. The gaps 54 may be referred to as slits 54.

[0075] The width gs of the gap 54 may be greater than the width w21 of the support portion 394 and less than the width w22 of the base 391. Thus, the support portion 394 can pass through the gap 54, while the base 391 cannot pass through the gap 54, so that the base 391 can be covered or supported by the substrate 40 around the gap 54.

[0076] The substrate 40 may include at least one substrate. The substrate 40 may include a plurality of adjacent substrates 41, 42, 43, 44, 45, 46, 47, 48, and 49. The first substrate 41, the second substrate 42, the third substrate 43, the fourth substrate 44, the fifth substrate 45, the sixth substrate 46, the seventh substrate 47, the eighth substrate 48, and the ninth substrate 49 may be arranged on an imaginary horizontal plane (i.e., an XY plane). The plurality of substrates 41, 42, 43, 44, 45, 46, 47, 48, and 49 may be respectively coupled to the plurality of regions 83A1, 83A2, 83A3, 83A4, 83A5, 83A6, 83A7, 83A8, and 83A9 of the heat sink 83.

[0077] The plurality of lenses 53 may respectively cover the plurality of light sources mounted on the substrate 40. A power supply (not shown) of the display device may supply power to the light sources 51 via a connector (not shown) mounted on the back surface of the substrate 40.

[0078] Reference Figure 9 , the reflective sheet 60 may cover the front of the substrate 40 and may be combined with the substrate 40. Figure 4 and Figure 5 )53 can be located in the hole 60a of the reflective sheet 60.

[0079] The reflective sheet 60 may have a quadrilateral plate shape. The reflective sheet 60 may have at least one. The reflective sheet 60 may include a plurality of reflective sheets 61, 62, 63, 64, 65, 66, 67, 68, and 69 adjacent to each other. The first reflective sheet 61, the second reflective sheet 62, the third reflective sheet 63, the fourth reflective sheet 64, the fifth reflective sheet 65, the sixth reflective sheet 66, the seventh reflective sheet 67, the eighth reflective sheet 68, and the ninth reflective sheet 69 may be located on an imaginary horizontal plane (i.e., an XY plane). The plurality of reflective sheets 61, 62, 63, 64, 65, 66, 67, 68, and 69 may be bonded to the plurality of substrates 41, 42, 43, 44, 45, 46, 47, 48, and 49, respectively.

[0080] The reflective sheet 60 may be provided with a second slit 40s corresponding to the support portion 394. The position and shape of the second slit 60s may correspond to the first slit 40s. The second slit 60s may overlap in front of the first slit 40s. A plurality of second slits 60s may be formed, and may be formed at a position corresponding to each of the plurality of support portions 394. The second slit 60s may extend long in the left and right directions and may be large enough for the support portion 394 to pass through. The reflective sheet 60 covers the front of the base 391 of each of the plurality of support members 39, and the support portion 394 may protrude toward the front of the reflective sheet 60 through the second slit 60s.

[0081] The width w12 of the second slit 60s may be the same as that of the first slit (see Figure 7 ) The width w12 of the second slit 60s is the same or similar. The width w12 of the second slit 60s may be greater than the width of the support portion 394 (refer to Figure 7 )w21 and is smaller than the width of the base 391 (refer to Figure 7 ) w22. The length L12 of the second slit 60s may be greater than the length L21 of the support portion 394. Thus, the support portion 394 may pass through the second slit 60s, while the base 391 may not pass through the second slit 60s, so that the base 391 may be covered or supported by the substrate 40 and the reflective sheet 60 around the second slit 60s (see Figure 11 ).

[0082] Reference Figure 10 The support member 39 may include a base 391 and a support portion 394. The support member 39 may include a base 391 and a plurality of support portions 394. The base 391 may extend long horizontally, may be narrow vertically, or may be thin front to back. The base 391 may have a flat rod shape. The base 391 may be flat. The plurality of support portions 394 may be spaced apart and arranged on the base 391 along its length.

[0083] The support portion 394 may include an elastic portion 392. The elastic portion 392 may be referred to as a deformable portion. One end and the other end of the elastic portions 392a, 392b, and 392c may be fixed to the front surface of the base 391. The elastic portions 392a, 392b, and 392c may generally have a semicircular shape with a concave center. A buffer space 39s may be formed between the base 391 and the elastic portions 392a, 392b, and 392c.

[0084] The first section 392a may form one end of the elastic parts 392a, 392b, and 392c and may be bent. The second section 392b may form the other end of the elastic parts 392a, 392b, and 392c and may be bent. The third section 392c may be located between the first section 392a and the second section 392b and may connect the first section 392a and the second section 392b. The third section 392c may be formed to be lower than the front ends of the first section 392a and the second section 392b (refer to FIG. 1 ). Figure 10 h2).

[0085] The support portion 394 may include a head portion 393. The head portion 393 may be referred to as a front end portion or a tower. The head portion 393 may protrude forward from the third section 392c. The front end of the head portion 393 may be positioned further forward than the front ends of the first section 392a and the second section 392b (see FIG. Figure 10 The head 393 may be located at the position farthest forward from the base 391 (refer to Figure 10 For example, the front end of the head 393 may be curved. As another example, the front end of the head 393 may be flat.

[0086] The support member 39 may be elastic. The support member 39 may be an injection molded material. For example, the support member 39 may be made of plastic or resin. The support member 39 may be made of a material with excellent impact resistance and high temperature reliability.

[0087] Reference Figure 11 , the front surface of the heat dissipation plate 83 may contact the back surface of the substrate 40. The base groove 834, the first slit 40s, and the second slit 60s may overlap in the front-to-back direction.

[0088] The base 391 can be positioned between the flat plate portion 81 of the frame 80 and the substrate 40. The base 391 can be positioned between the heat sink 83 and the substrate 40. The base 391 can be positioned in the base groove 834. The width w3 of the base groove 834 can be greater than the width w22 of the base 391. The base 391 can be bonded to the base groove 834. The front of the base 391 positioned in the base groove 834 can be the same height as the front of the heat sink 83. The back of the base 391 can contact the base groove 834, and the front of the base 391 can contact the back of the substrate 40 around the first slit 40s. After the base 391 is inserted into the base groove 834, the substrate 40 can be coupled to the heat sink 83 or the frame 80. When the substrate 40 is coupled to the heat sink 83 or the frame 80, the substrate 40 can press the base 391 against the heat sink 83 or the frame 80.

[0089] The support portion 394 protrudes from the base 391 and sequentially passes through the first slit 40s and the second slit 60s, and may protrude forward of the substrate 40 and the reflective sheet 60. The front end of the elastic portion 392 and the head portion 393 may be located further forward than the reflective sheet 60.

[0090] Thus, the process of setting up a plurality of support structures can be simplified and manufacturing efficiency can be improved. In addition, the support member 39 can be prevented from detaching and the structural stability can be improved.

[0091] Reference Figure 12 , the head 393 of the support member 39 may be adjacent to the back surface of the diffuser plate 31. The head 393 may be in contact with the back surface of the diffuser plate 31, or may be slightly spaced apart from the back surface of the diffuser plate 31.

[0092] Reference Figure 13 The diffuser plate 31 may deform. For example, the diffuser plate 31 may deform due to transportation or storage of the display device (especially when stored flat). For example, if the display device is in operation, the temperature of the diffuser plate 31 may rise, causing the diffuser plate 31 to deform. For example, the diffuser plate 31 may sag.

[0093] If the diffuser 31 sags, the head 393 of the support member 39 can support the diffuser 31. Depending on the sagging degree of the diffuser 31, the elastic portion 392 can be deformed toward the base 391. Depending on the recovery degree of the diffuser 31, the elastic portion 392 can be restored to its original state by elastic force.

[0094] Reference Figure 14If the diffuser plate 31 further sags, the head portion 393 of the support member 39 and the first section 392a and / or second section 392b of the elastic portion 392 may also support the diffuser plate 31. Depending on the degree of sag of the diffuser plate 31, the elastic portion 392 may deform toward the base 391. Depending on the degree of recovery of the diffuser plate 31, the elastic portion 392 may return to its original state through elastic force.

[0095] For example, the back surface of the diffuser plate 31 may be in contact with the head portion 393 and the first segment 392a. As another example, the back surface of the diffuser plate 31 may be in contact with the head portion 393 and the second segment 392b. As yet another example, the back surface of the diffuser plate 31 may be in contact with the head portion 393, the first segment 392a, and the second segment 392b.

[0096] Thus, the support members 39 can support the drooping of the diffuser plate 31 at multiple locations. That is, the support members 39 can minimize damage to the diffuser plate 31 while maintaining the interval between the reflection sheet 60 and the diffuser plate 31 at a predetermined level.

[0097] Reference Figure 15 The fixing hole 396 can be formed in the base 391. The fixing hole 396 can be formed by the base 391 being open in the front-to-back direction. As another example, the fixing hole 396 can be formed by the back surface of the base 391 being recessed forward. The fixing hole 396 can be formed approximately near the center of the base 391. As another example, a plurality of fixing holes 396 can be formed in each base 391.

[0098] The fixing protrusion 836 may protrude forward from the frame 80 or the heat sink 83. The fixing protrusion 836 may protrude forward from the front of the base groove 834. The shape and position of the fixing protrusion 836 and the fixing hole 396 may correspond to each other. As another example, a plurality of fixing protrusions 836 may be formed in each base groove 834.

[0099] Reference Figure 15 and Figure 16 , the base 391 may be deformed. For example, if the display device is operated, the temperature of the base 391 may increase, and the length or width of the base 391 may expand.

[0100] The width w3 of the base groove 391 can be greater than the width w22 of the base 391. The length L3 of the base groove 391 can be greater than the length L22 of the base 391. The width w3 and length L3 of the base groove 391 can be considered to accommodate thermal expansion of the base 391. The fixing protrusion 836 can be inserted into or clamped into the fixing hole 396. The fixing protrusion 836 can prevent the base 391 from moving up, down, or left or right from the heat sink 83 or frame 80. As another example, a plurality of fixing protrusions 836 and fixing holes 396 can be formed at positions corresponding to each other. The plurality of fixing protrusions 836 can be clamped into the plurality of fixing holes 396.

[0101] Therefore, even if the base 391 is deformed due to temperature, since there is a space to accommodate the deformed base 391 , deformation of the surrounding structure can be prevented and the position of the base 391 can be stably maintained.

[0102] Reference Figures 1 to 16 The display device 1 may include: a display panel; a frame located behind the display panel; a substrate located between the display panel and the frame and coupled to the frame; a plurality of light sources located on the substrate and providing light to the display panel; an optical part located between the display panel and the plurality of light sources; and a support member coupled to the frame and supporting the optical part; the support member includes: a base located between the frame and the substrate; and a support portion protruding forward from the base, passing through the substrate and supporting the back of the optical part.

[0103] The frame may include a base groove, which is formed by being recessed from the front side of the frame toward the rear and for seating the base.

[0104] The back surface of the base may contact the base groove, and the front surface of the base may contact the back surface of the substrate.

[0105] The support portion may pass through a slit formed in the substrate, and a width of the slit may be smaller than a width of the base and larger than a width of the support portion.

[0106] The base and the base groove may extend long, and a plurality of the support portions may be arranged at intervals along the length direction of the base.

[0107] A plurality of the support members and the base grooves may be arranged at intervals in a direction perpendicular to the length direction of the base.

[0108] The display device may further include a bridge portion connecting the plurality of bases, and the heat dissipation plate may include a bridge groove, which is formed by the front of the heat dissipation plate being recessed toward the rear and connects the plurality of base grooves, and the bridge portion is placed in the bridge groove.

[0109] The support portion may include an elastic portion, one end and the other end of the elastic portion are fixed to the front surface of the base, the one end and the other end are spaced forward from the front surface of the base and pass through the substrate, and the elastic portion has elasticity so that the one end and the other end can move in the front-to-back direction.

[0110] The support portion may include a head portion that protrudes forward from between the one end and the other end of the elastic portion toward the optical portion and supports a rear surface of the optical portion.

[0111] The length of the base groove may be greater than the length of the base, the base may be provided with a fixing hole adjacent to the center of the base, and the heat dissipation plate may include a fixing protrusion protruding forward from the front side of the base groove and inserted into the fixing hole.

[0112] The display device may further include a heat dissipation plate located between the base and the substrate and coupled to the substrate and the frame. The heat dissipation plate is formed with a base groove that is recessed from the front side of the heat dissipation plate to the rear side and is used to accommodate the base.

[0113] The aforementioned embodiments or other embodiments of the present invention are not exclusive or distinct from each other, and the various components or functions of the aforementioned embodiments or other embodiments of the present invention may be mixed or combined.

[0114] For example, it means that configuration A described in a specific embodiment and / or drawing can be combined with configuration B described in another embodiment and / or drawing. In other words, even if the combination between the configurations is not directly described, it means that they can be combined unless it is clearly stated that they cannot be combined.

[0115] The detailed description 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 located behind the display panel; a substrate, located between the display panel and the frame, and coupled to the frame; a plurality of light sources, located on the substrate, providing light to the display panel; an optical portion, located between the display panel and the plurality of light sources; as well as a support member, coupled to the frame and supporting the optical part; The support member comprises: a base, located between the frame and the base plate; as well as The support portion protrudes forward from the base, passes through the substrate, and supports the back surface of the optical portion.

2. The display device according to claim 1, wherein The frame includes a base groove, which is recessed from the front side of the frame toward the rear and is used for seating the base.

3. The display device according to claim 2, wherein: The back surface of the base contacts the base groove, and the front surface of the base contacts the back surface of the substrate.

4. The display device according to claim 3, wherein The support portion passes through a slit formed in the substrate; The width of the slit is smaller than the width of the base and larger than the width of the support portion.

5. The display device according to claim 2, wherein The base and the base groove extend long; A plurality of support portions are arranged at intervals along the length direction of the base. The display device according to claim 5 , wherein: A plurality of the support members and the base grooves are spaced apart and arranged in a direction perpendicular to the length direction of the base.

7. The display device according to claim 6, wherein: Also includes a bridge portion connecting a plurality of said bases; The heat dissipation plate includes a bridge groove, which is formed by being recessed from the front side of the heat dissipation plate toward the rear and connects a plurality of base grooves. The bridge is placed in the bridge groove.

8. The display device according to claim 1, wherein The support portion includes an elastic portion, one end and the other end of the elastic portion are fixed to the front surface of the base, the one end and the other end are spaced forward from the front surface of the base and pass through the substrate, and the elastic portion has elasticity so that the one end and the other end can move in the front-to-back direction.

9. The display device according to claim 8, wherein The support portion includes a head portion that protrudes forward from between the one end and the other end of the elastic portion toward the optical portion and supports a rear surface of the optical portion.

10. The display device according to claim 2, wherein: The length of the base groove is greater than the length of the base; The base is provided with a fixing hole adjacent to the center of the base; The heat dissipation plate includes a fixing protrusion protruding forward from the front side of the base groove and inserted into the fixing hole.

11. The display device according to claim 1, wherein The heat dissipation plate includes a heat dissipation plate located between the base and the substrate and combined with the substrate and the frame. The heat dissipation plate is formed with a base groove, which is recessed from the front side of the heat dissipation plate to the rear side and is used to accommodate the base.

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