Display device

Abstract

The invention discloses a display device. A display device of the present invention may include: a display panel; a frame located behind the display panel and coupled to the display panel; a substrate on the frame between the display panel and the frame; a light assembly mounted on the substrate and providing light to the display panel; and a reflective sheet on the frame and the substrate, having a hole through which the light assembly passes, reflecting light provided by the light assembly to the display panel, the frame may include: a sheet supporting portion supporting the reflective sheet; a substrate support portion forming a step lowered from the sheet support portion and forming a gap with the reflective sheet; and a cutting part which penetrates through the frame at one side of the substrate supporting part and has an opening, and the substrate can be positioned on the substrate supporting part of the frame and inserted into the cutting part.

Description

Technical Field

[0001] The present invention relates to a display device (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), ELD (Electroluminescent Display), VFD (Vacuum Fluorescent Display), OLED (Organic Light-Emitting Diode) have been studied and used.

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

[0004] In recent years, in order to improve space efficiency of a display device, much research has been conducted on a backlight unit that provides light to a display panel. Summary of the invention

[0005] The present invention aims to solve the above problems and other problems. Another object may be to provide a display device capable of improving the structural stability of a backlight unit.

[0006] Another object may be to provide a display device capable of improving the structural stability of an LED substrate.

[0007] Another object may be to provide a display device capable of improving light uniformity.

[0008] Another object may be to provide a display device having a backlight unit capable of improving light efficiency.

[0009] Another object may be to provide a display device capable of improving heat dissipation efficiency.

[0010] In order to achieve the above-mentioned purpose or other purposes, according to one aspect of the present invention, a display device may include: a display panel; a frame, located behind the display panel and combined with the display panel; a substrate, located on the frame between the display panel and the frame; an optical component, mounted on the substrate and providing light to the display panel; and a reflective sheet, located on the frame and the substrate, having a hole for the optical component to pass through, reflecting the light provided by the optical component to the display panel, the frame may include: a sheet supporting portion, supporting the reflective sheet; a substrate supporting portion, forming a step lowered from the sheet supporting portion and forming a gap with the reflective sheet; and a cutting portion, penetrating the frame on one side of the substrate supporting portion and forming an opening, the substrate may be located on the substrate supporting portion of the frame and inserted into the cutting portion.

[0011] The display device may include an adhesive member located between the substrate and the substrate supporting portion and fixing the substrate to the substrate supporting portion.

[0012] The display device may include: a diffusion plate located between the reflective sheet and the display panel and supported by the frame; and an optical sheet located between the display panel and the diffusion plate and including at least one sheet.

[0013] The effects of the display device of the present invention are described below.

[0014] According to at least one embodiment of the present invention, a display device capable of improving the structural stability of a backlight unit can be provided.

[0015] According to at least one embodiment of the present invention, a display device capable of improving the structural stability of an LED substrate can be provided.

[0016] According to at least one embodiment of the present invention, a display device capable of improving light uniformity can be provided.

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

[0018] According to at least one embodiment of the present invention, a display device capable of improving heat dissipation efficiency can be provided.

[0019] 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

[0020] Figures 1 to 16 FIG. 1 is a diagram showing examples of display devices according to a plurality of embodiments of the present invention. DETAILED DESCRIPTION

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

[0022] The suffixes "module" and "unit" for the constituent elements used in the following description are only given or used interchangeably for the convenience of writing the specification, and they do not have any meaning or function to distinguish one from another. 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, its 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 to 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] In the following, a liquid crystal display device (LCD) is used as an example to describe the display panel, but the display panel applicable to the present invention is not limited to the liquid crystal panel.

[0028] Also, the following display device 100 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 .

[0029] Here, the first short side SS1 region can be called the first side region, the second short side SS2 region can be called the second side region opposite to the first side region, the first long side LS1 region can be called the third side region adjacent to the first side region and the second side region and located between the first side region and the second side region, and the second long side LS2 region can be called the fourth side region adjacent to the first side region and the second side region and located between the first side region and the second side region and opposite to the third side region.

[0030] Furthermore, for the sake of convenience, the 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 is shown and described, but the lengths of the first long side LS1 and the second long side LS2 may also be substantially the same as the lengths of the first short side SS1 and the second short side SS2.

[0031] In addition, the first direction DR1 may be parallel to the long sides LS1 and LS2 of the display device 100, and the second direction DR2 may be parallel to the short sides SS1 and SS2 of the display device 100. The third direction DR3 may be perpendicular to the first direction DR1 and / or the second direction DR2.

[0032] The first direction DR1 and the second direction DR2 may be collectively referred to as a horizontal direction (Horizontal Direction), and the third direction DR3 may be referred to as a vertical direction (Vertical Direction).

[0033] The side on which the display device 100 displays an image may be referred to as the front or front surface. When the display device 100 displays an image, the side on which the image cannot be observed may be referred to as the rear or back or the back surface. When the display device 100 is observed from the front or the front, the side of the first long side LS1 may be referred to as the top or the top surface. The side of the second long side LS2 may be referred to as the bottom or the bottom surface. The side of the first short side SS1 may be referred to as the right or the right side, and the side of the second short side SS2 may be referred to as the left or the left side.

[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 100. In addition, the portion where the first long side LS1, the second long side LS2, the first short side SS1, and the second short side SS2 intersect each other may be referred to as a corner. For example, the portion where the first long side LS1 and the first short side SS1 intersect may be a first corner C1, the portion where the first long side LS1 and the second short side SS2 intersect may be a second corner C2, the portion where the second short side SS2 and the second long side LS2 intersect may be a third corner C3, and the portion where the second long side LS2 and the first short side SS1 intersect may be a fourth corner C4.

[0035] Here, the direction from the first short side SS1 toward the second short side SS2 or the direction from the second short side SS2 toward the first short side SS1 may be referred to as the left and right direction (LR). The direction from the first long side LS1 toward the second long side LS2 or the direction from the second long side LS2 toward the first long side LS1 may be referred to as the up and down direction (UD).

[0036] Reference Figure 1 and Figure 2 The display panel 110 may be located in front of the display device 100 and display an image. The display panel 110 may be provided with a plurality of pixels and each pixel may output an image according to color, brightness, and saturation.

[0037] The display panel 110 may be divided into an active area for displaying an image and an inactive area for not displaying an image. The display panel 110 may include a front substrate and a rear substrate facing each other with a liquid crystal layer interposed therebetween.

[0038] The front substrate may include a plurality of pixels formed of red (R), green (G), and blue (B) sub-pixels. The front substrate may generate a color 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 applied 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 accordingly according to the voltage difference generated between the pixel electrode and the common electrode. The liquid crystal layer may transmit light provided by the backlight unit 120 to the front substrate.

[0040] The front cover 105 may cover at least a portion of the front and side surfaces of the display panel 110. The front cover 105 may be in the shape of a quadrilateral frame with a central void.

[0041] The front cover 105 can be divided into a front cover and a side cover. That is, this means that the front cover 105 can be divided into a front cover located on the front (front) side of the display panel 110 and a side cover located on the side of the display panel 110. The front cover and the side cover can be constructed separately. Either the front cover or the side cover can be omitted.

[0042] The guide panel 117 may be located behind the display panel 110. The guide panel 117 may support a portion of the back side of the display panel 110. The guide panel 117 may contact the outer profile of the display panel 110. The guide panel 117 may be coupled to the frame 130.

[0043] The backlight unit 120 may be located behind the display panel 110. The backlight unit 120 may include a plurality of light sources. The backlight unit 120 may be a direct type or an edge type.

[0044] The backlight unit 120 may be located on the front side of the frame 130. For example, this means that a plurality of light sources may be disposed on the front side of the frame 130, which may be collectively referred to as a direct type backlight unit.

[0045] The backlight unit 120 may be driven in a full driving manner or a local driving manner such as local dimming, impulsive driving, etc. The backlight unit 120 may include an optical sheet 125 and an optical layer 123 .

[0046] The optical sheet 125 may disperse the light of the light source. The optical sheet 125 may be composed of a plurality of layers. For example, the optical sheet 125 may include at least one prism sheet and / or at least one diffusion sheet.

[0047] The optical sheet 125 may have at least one coupling portion 125d. The coupling portion 125d may be coupled to the front cover 105, the frame 130, and / or the back cover 150. That is, this means that the coupling portion 125d may be directly coupled to the front cover 105, the frame 130, and / or the back cover 150. Different from this, the coupling portion 125d may be coupled to a structure coupled to the front cover 105, the frame 130, and / or the back cover 150. That is, this means that the coupling portion 125d may be indirectly coupled to the front cover 105, the frame 130, and / or the back cover 150.

[0048] The optical layer 123 may include a light source, a light guide plate, a diffusion plate, and / or a reflection plate, etc.

[0049] The frame 130 may support a plurality of components of the display device 100. For example, the backlight unit 120 and the like may be combined with the frame 130. The frame 130 may be made of a metal material such as aluminum alloy.

[0050] The back cover 150 may be located at the rear of the display device 100. The back cover 150 may protect the internal structure from external influences. At least a portion of the back cover 150 may be combined with the frame 130 and / or the front cover 105. The back cover 150 may be an injection molded product of a resin material.

[0051] Reference Figure 3 The backlight unit 120 may include an optical layer 123 having a substrate 122, at least one optical component 124, a reflective sheet 126 and a diffusion plate 129, and an optical sheet 125 located in front of the optical layer 123. The configuration of the backlight unit 120 is not limited thereto, and any one or more thereof may be omitted.

[0052] The substrate 122 may be configured in a plurality of strap shapes extending in a first direction and spaced apart at predetermined intervals in a second direction perpendicular to the first direction.

[0053] At least one optical component 124 may be mounted on the substrate 122. An electrode pattern for connecting the adapter and the optical component 124 may be formed on the substrate 122. For example, the electrode pattern may be a carbon nano tube (CNT) electrode pattern.

[0054] The substrate 122 may be made of at least one of polyethylene terephthalate (PET), glass, polycarbonate (PC), and silicon. The substrate 122 may be a PCB (Printed Circuit Board).

[0055] The optical components 124 may be arranged at a predetermined interval in the first direction on the substrate 122. The diameter of the optical components 124 may be greater than the width of the substrate 122. That is, this means that the diameter of the optical components 124 may be greater than the length of the substrate 122 in the second direction.

[0056] The optical component 124 may be a light emitting diode (LED) chip or a light emitting diode package including at least one LED chip.

[0057] The light assembly 124 may be composed of a color LED or a white LED that emits at least one of red, blue, green, etc. The color LED may include at least one of a red LED, a blue LED, and a green LED.

[0058] The light source included in the optical component 124 may be a COB (Chip On Board) type. The COB type may be a form in which an LED chip as a light source is directly combined on the substrate 122. This can simplify the manufacturing process. In addition, the resistance can be reduced, and the energy lost in the form of heat can be reduced. That is, this means that the power efficiency of the optical component 124 can be improved. The COB type can provide brighter lighting. The COB type can provide a thinner thickness and lighter weight than existing light sources.

[0059] The reflective sheet 126 may be located on the front surface of the substrate 122. The reflective sheet 126 may have a through hole 235, and the optical component may be inserted into the through hole 235.

[0060] The reflective sheet 126 may reflect light provided by the optical assembly 124 forward. In addition, the reflective sheet 126 may reflect light reflected by the diffusion plate 129 toward the diffusion plate 129 again.

[0061] The reflective sheet 126 may include at least one of a metal and a metal oxide as a reflective material. For example, the reflective sheet 126 may include at least one metal and / or metal oxide having high reflectivity such as aluminum (Al), silver (Ag), gold (Au), and titanium dioxide (TiO2).

[0062] The reflective sheet 126 may be formed by depositing and / or coating a metal or metal oxide on the substrate 122. Ink including a metal material may be printed on the reflective sheet 126. A deposition layer using a vacuum deposition method such as thermal deposition, evaporation, or sputtering may be formed on the reflective sheet 126. A coating layer and / or a printed layer using a printing method, a gravure coating method, or a screen printing method may be formed on the reflective sheet 126.

[0063] An air gap may be located between the reflective sheet 126 and the diffuser plate 129. The air gap may widely diffuse light emitted from the optical assembly 124. To maintain the air gap, the support member 200 may be located between the reflective sheet 126 and the diffuser plate 129. The air gap may be referred to as an optical gap or an optical depth.

[0064] The resin may be deposited on the optical component 124 and / or the reflective sheet 126. The resin may diffuse the light emitted from the optical component 124. The diffusion plate 129 may diffuse the light emitted from the optical component 124 toward the upper portion.

[0065] The optical sheet 125 may be located in front of the diffusion plate 129 . The rear surface of the optical sheet 125 may face the diffusion plate 129 , and the front surface of the optical sheet 125 may face the rear surface of the display panel 110 .

[0066] The optical sheet 125 may include at least one sheet. Specifically, the optical sheet 125 may include at least one prism sheet and / or at least one diffusion sheet. The plurality of sheets included in the optical sheet 125 may be in a state of being bonded and / or closely attached.

[0067] The optical sheet 125 may be composed of a plurality of sheets having different functions from each other. For example, the optical sheet 125 may include a first optical sheet 125a, a second optical sheet 125b, and a third optical sheet 125c. The first optical sheet 125a may have the function of a diffusion sheet, and the second optical sheet 125b and the third optical sheet 125c may have the function of a prism sheet. The number and / or position of the diffusion sheet and the prism sheet may vary.

[0068] The diffusion sheet can prevent the light from the diffusion plate from being partially concentrated, thereby making the distribution of light more uniform. The prism sheet can collect the light from the diffusion sheet and make the light vertically incident on the display panel 110.

[0069] The coupling part 125d may be formed on at least one of a side or an edge of the optical sheet 125. The coupling part 125d may be formed on at least one of the first optical sheet 125a, the second optical sheet 125b, and the third optical sheet 125c.

[0070] The coupling part 125d may be formed on the long side or edge of the optical sheet 125. The coupling part 125d formed on the first long side and the coupling part 125d formed on the second long side may be asymmetric. For example, this means that the position and / or number of the coupling part 125d of the first long side and the coupling part 125d of the second long side may be different from each other.

[0071] Reference Figure 4 The substrates 122 may be provided on the frame 130 in a plurality of strips extending in a first direction and spaced at predetermined intervals in a second direction orthogonal to the first direction. One side of the plurality of substrates 122 may be connected to the wiring electrode 232 .

[0072] The wiring electrode 232 may extend in the second direction. The wiring electrode 232 may be connected to one side of the substrate 122 at a predetermined interval in the second direction.

[0073] The wiring hole 234 may be formed at one end of the wiring electrode 232. The wiring hole 234 may be a micro hole penetrating the frame 130. The wiring electrode 232 may extend toward the back of the frame 130 through the wiring hole 234. The wiring electrode 232 may be electrically connected to an adapter (not shown) located at the back of the frame 130 through the wiring hole 234.

[0074] The optical components 124 may be mounted on the substrate 122 at a prescribed interval in the first direction. The diameter of the optical components 124 may be greater than the width of the substrate 122 in the second direction.

[0075] Reference Figure 5 , the frame 130 may include a flat plate portion 132 and an inclined portion 133. The flat plate portion 132 may be in the shape of a plate. The inclined portion 133 may have a predetermined inclination relative to the flat plate portion 132 and extend forward from the flat plate portion 132. The frame 130 may be in the shape of a tub as a whole. The reflective sheet 126 corresponds to the shape of the frame 130, so that the frame 130 may be in the shape of a tub as a whole. A space may also be formed between the inclined portion 133 and the reflective sheet 126.

[0076] The substrate 122 may be mounted or arranged on the flat plate portion 132. The plurality of substrates 122 may be arranged in sequence. The plurality of substrates 122 may be spaced apart from each other. For example, the first substrate 122A may extend along the left-right direction LR of the frame 130, and the left-right direction LR of the frame 130 may be arranged as the length direction. The second substrate 122B may extend along the left-right direction LR of the frame 130, and be spaced apart from the first substrate 122A and mounted on the frame 130. The third substrate 122C may extend along the left-right direction LR of the frame 130, and be spaced apart from the second substrate 122B and mounted on the frame 130.

[0077] The intervals between the plurality of substrates 122 may be determined according to the display panel 110 (see Figure 2 ) pixels. For example, the interval between the plurality of substrates 122 for providing light to the display panel 110 for realizing 8K image quality may be smaller than the interval between the plurality of substrates 122 for providing light to the display panel 110 for realizing 4K image quality. As the number of pixels of the display panel 110 increases or the image quality that can be realized by the display panel 110 increases, the light transmittance of the display panel 110 decreases. Therefore, in order to improve the light transmittance of the display panel 110 (refer to Figure 3 ) in order to increase the brightness of the light provided, a plurality of substrates 122 may be configured.

[0078] The reflective sheet 126 may include a plurality of through holes 235. The plurality of through holes 235 may correspond to the number of the plurality of optical components 124. The reflective sheet 126 may be placed on the frame 130 and / or the substrate 122. At this time, the plurality of lenses 124b of the plurality of optical components 124 may be inserted into the plurality of through holes 235 and protrude onto the reflective sheet 126. The reflective sheet 126 may be combined or fixed to the frame 130 by a fixing member 202. The support member 200 may be mounted on the reflective sheet 126.

[0079] A plurality of coupling ribs 130H and 130V may be formed on the upper end of the inclined portion 133 of the frame 130 , and the reflective sheet 126 may be provided with coupling holes VH and HH so that the plurality of ribs 130H and 130V are inserted into the coupling holes VH and HH. Thus, the reflective sheet 126 may be fixed to the frame 130 .

[0080] The guide panel 117 may be located on the outer contour of the reflective sheet 126 and combined with the frame 130. The guide panel 117 may support the display panel 110 (see Figure 2 ). The guide panels 117 may be located at four sides of the reflective sheet 126 .

[0081] Reference Figure 6, the wiring electrode 232 extending from the front side of the frame 130 can be electrically connected to the power supply 315 through the wiring hole 234. The wiring electrode 232 can be called a cable 232. The power supply 315 can be a printed circuit board that supplies power to the display device 100. The power supply 315 can convert alternating current (AC) into direct current (DC).

[0082] The power source 315 may provide current to the optical assembly 124 through the wiring electrode 232. The power source 315 may be electrically connected to the main board 321 through the wiring electrode 232. The main board 321 may be spaced apart from the power source 315 by a predetermined interval.

[0083] The main board 321 may be a printed circuit board providing an interface for operating the display device 100. In addition, the main board 321 may check and manage an operating state of each of a plurality of components of the display device 100.

[0084] The main board 321 and the power supply 315 may be electrically connected to the timing control circuit board 319 through the wiring electrodes 232. The timing control circuit board 319 may be a printed circuit board that transmits power or signals input from the main board 321 or the power supply 315 to the display panel 110. The timing control circuit board 319 may be electrically connected to the display panel 110 on the front side of the frame 130 through an FFC cable (Flat Flex Cable) 251.

[0085] Although it is shown that each of the plurality of printed circuit boards is connected to each other, the present invention is not limited thereto, and only at least a part of the plurality of printed circuit boards may be connected to each other.

[0086] Reference Figure 7 and Figure 8 , the frame 130 may include a flat portion 132 and an inclined portion 133. The flat portion 132 and the inclined portion 133 may be formed by pressing the frame 130. The flat portion 132 and / or the inclined portion 133 may be pressed while forming a curve. Thus, the rigidity of the frame 130 may be improved.

[0087] The flat plate portion 132 may include a rigid portion 132b and a support portion 132a. The support portion 132a may form a top surface of the flat plate portion 132. The rigid portion 132b may form a bottom surface of the flat plate portion 132. The rigid portion 132b may form a step lowered from the support portion 132a. The support portion 132a may form a step raised from the rigid portion 132b. The support portion 132a may form a block, and the rigid portion 132b may form a connection path between a plurality of blocks formed by running through the support portion 132a.

[0088] The support portion 132a may be referred to as a sheet support portion 132a, and the support portion 132a may further include a substrate support portion 132c. The substrate support portion 132c may include a step lowered from the sheet support portion 132a. The substrate support portion 132c may connect the sheet support portions 132a of a plurality of blocks. For example, the substrate support portion 132c may form a step lowered from the sheet support portion 132a and a step raised from the rigid portion 132b. The substrate support portion 132c may intersect with a connection path. The substrate support portion 132c may form a step raised from a connection path. The substrate support portion 132c may extend in the left-right direction or the up-down direction of the frame 130.

[0089] The cutout portion 132d may be formed at one end of the substrate support portion 132c. The cutout portion 132d may be formed at one end or both ends of the substrate support portion 132c. The cutout portion 132d may be formed by cutting or punching the substrate support portion 132c and / or the sheet support portion 132a.

[0090] The adhesive member AD may be fixed or bonded to the substrate support portion 132c. The substrate 122 may be fixed to the adhesive member AD. The length of the adhesive member AD may correspond to the length of the substrate support portion 132c, and the width of the adhesive member AD may be greater than the width of the substrate 122 and less than the width of the substrate support portion 132c.

[0091] The substrate guide 132f may be formed on the support portion 132a. The substrate guide 132f may be arranged along the periphery of the end of the substrate 122. The substrate guide 132f may be formed by pressing the support portion 132a. The substrate guide 132f may be referred to as a substrate fixing portion 132f or a substrate seat 132f. The width S2 of the substrate guide 132f may correspond to the width S1 of the substrate 122. For example, the width S2 of the substrate guide 132f may be slightly larger than the width S1 of the substrate 122. Thus, the substrate 122 and / or the end of the substrate 122 may be prevented from shaking and the substrate 122 may be firmly fixed.

[0092] Reference Figures 9 to 12 , one end of the substrate 122 can be inserted into the cutout portion 132d. The substrate 122 can pass through the cutout portion 132d from the front of the substrate support portion 132c to the back of the support portion or sheet support portion 132a. The back of the substrate 122 can contact the front of the substrate support portion 132c, and the front of the substrate 122 can contact the back of the support portion 132a or the sheet support portion 132a.

[0093] The sealing sheet 134 may be fixed or bonded to the back of the support parts 132a, 132c. The sealing sheet 134 may cover the cutout part 132d. The sealing sheet 134 may be bonded to the back of the sheet support part 132a, the back of the substrate support part 132c and / or the cutout part 132d. The sealing sheet 134 may cover the substrate guide 132f (see Fig.10 ). The sealing sheet 134 may be a light shielding sheet and include a black substance. For example, the sealing sheet 134 may be a light shielding tape. Thus, light leakage can be prevented.

[0094] Reference Fig.13 and Fig.14 , the connector CN may be mounted on the substrate 122. The connector CN may be electrically connected to the optical component 124 of the substrate 122. When power is supplied to the connector CN, the optical component 124 may generate light. The wire W may be connected to the connector CN. The wire W may be plural.

[0095] The first wire W1 can be connected to a power source 315 (see Figure 6 ) and the first connector CN1. The first wire W1 can be connected by the power supply 315 (refer to Figure 6 ) is provided to the optical components 124. The first connector CN1 may be mounted on the first substrate 122C, and supplies power to the plurality of optical components 124 of the first substrate 122C through the first wire W1 and the first connector CN1.

[0096] The second wire W2 may connect the first connector CN1 and the second connector CN2. The second connector CN2 may be mounted on the second substrate 122B. The second wire W2 may supply power from the first substrate 122C to the second substrate 122B. The power received through the second wire W2 may be provided to the optical component 124 mounted on the second substrate 122B, and the optical component 124 may generate light.

[0097] The third wire W3 may connect the second connector CN2 and the third connector CN3. The third connector CN3 may be mounted on the third substrate 122A. The third wire W3 may supply power from the second substrate 122B to the third substrate 122A. The power received through the third wire W3 may be provided to the optical component 124 mounted on the third substrate 122A, and the optical component 124 may generate light.

[0098] The fourth wire W4 can connect the third connector CN3 and the power source 315 (see Figure 6 ). For example, the fourth wire W4 may be a ground wire.

[0099] The fifth wire W5 can be connected to the power source 315 (refer to Figure 6) and the fourth connector CN4. The fifth wire W5 can be connected by the power supply 315 (refer to Figure 6 ) is provided to the optical component 124. The fourth connector CN4 may be mounted on the fourth substrate 122D, and may supply power to the plurality of optical components 124 of the fourth substrate 122D through the fifth wire W5 and the fourth connector CN4.

[0100] The sixth wire W6 may connect the fourth connector CN4 and another connector CN or an adjacent connector CN. The sixth wire W6 may supply power from the fourth substrate 122D to another substrate 122 or an adjacent substrate 122. The power received through the sixth wire W6 may be provided to the optical component 124 mounted on another substrate 122 or an adjacent substrate 122, and the optical component 124 may generate light.

[0101] The seventh wire W7 may be connected to the connector CN of another substrate 122 or an adjacent substrate 122. For example, the seventh wire W7 may be a ground wire. The seventh wire W7 may be electrically connected to the eighth wire W8. The eighth wire W8 may be connected to the power source 315 (see Figure 6 ) connection. For example, the eighth wire W8 may be a ground wire.

[0102] and Fig.14 Refer to Fig.15 , the first wire W1, the fourth wire W4, the fifth wire W5 and / or the eighth wire W8 can be connected to the power supply 315. The cable 232 may include the first wire W1, the fourth wire W4, the fifth wire W5 and / or the eighth wire W8. The cable hole 234H may pass through the flat plate portion 132 of the frame 130. The cable 232 may extend from the front to the back of the flat plate portion 132 through the cable hole 234H. The cable 232 may be connected to the power supply 315 through the cable connector CN5.

[0103] The sealing member 139 may be inserted or pressed into the cable hole 234H. The cable 232 may pass through the sealing member 139. For example, the sealing member 139 may be an insulating material having elasticity or a flame retardant material.

[0104] Reference Fig.16 The flat plate portion 132 of the frame 130 may face the back side of the display panel 110. The inclined portion 133 of the frame 130 may extend from the flat plate portion 132 toward the edge of the display panel 110. The inclined portion 133 may have a curvature. The curvature of the inclined portion 133 may improve the lateral rigidity of the frame 130.

[0105] The guide panel 117 may be coupled to the end of the inclined portion 133 of the frame 130. The display panel 110 may be coupled to the guide panel 117. The guide panel 117 may support the rear surface of the display panel 110. For example, the display panel 110 may be fixed to the guide panel 117 by an adhesive member AD.

[0106] The diffuser plate 129 may be placed on the inclined portion 133 of the frame 130. The inclined portion 133 may support the back surface adjacent to the edge of the diffuser plate 129. The diffuser plate 129 may face the back surface of the display panel 110. The optical sheet 125 may be placed on the diffuser plate 129. The optical sheet 125 may be fixed to the diffuser plate 129 by the guide panel 117.

[0107] The reflective sheet 126 may include a central portion 126a and a side portion 126b. The central portion 126a may be placed on the flat plate portion 132 of the frame 130. The central portion 126a may face the back surface of the diffuser plate 129. The side portion 126b may extend from the central portion 126a. The side portion 126b may extend from the central portion 126a and be placed on the inclined portion 133 of the frame 130. The end of the side portion 126b may be fixed between the inclined portion 133 of the frame 130 and the guide panel 117.

[0108] The substrate 122 may be located at a substrate support portion 132c formed at the flat plate portion 132 of the frame 130. The connector CN may be mounted on the substrate 122. A plurality of wires W may be connected to the connector CN. A plurality of wires W may be wired at the rigid portion 132b. A wire clamp WC may bundle a plurality of wires W. The wires W may be wired at the rigid portion 132b, thereby effectively transferring heat generated by the wires W to the rear of the frame 130 through the space of the rigid portion 132b and discharging the heat. The rigid portion 132b may perform the function of a heat sink.

[0109] The optical assembly 124 mounted on the substrate 122 may pass through the through hole 235 or the hole 235 formed in the central portion 126a of the reflective sheet 126. The reflective sheet 126 may cover the substrate 122 and / or the flat plate portion 132 and the inclined portion 133 of the frame 130. The light emitted by the optical assembly 124 may be provided to the display panel 110 through the diffuser plate 129 and / or the optical sheet 125. The light emitted by the optical assembly 124 is reflected at the reflective sheet 126 and provided to the display panel 110 through the diffuser plate 129 and / or the optical sheet 125. The light may be recycled between the diffuser plate 129 and the reflective sheet 126.

[0110] The distance from the back of the diffuser plate 129 to the bottom of the flat plate portion 132 or the inclined portion 133 of the frame 130 may be referred to as a first optical distance OG1. The distance from the back of the diffuser plate 129 to the front of the reflective sheet 126 may be referred to as a second optical distance OG2. The second optical distance OG2 may be greater than the first optical distance OG1. The second optical distance OG2 is greater than the first optical distance OG1 by more than the thickness of the substrate 122. As the optical distances OG1 and OG2 become longer, light recycling may be improved, thereby improving the efficiency of light provided to the display panel 110.

[0111] The end of the substrate 122 is exposed to the back of the frame 130 through the cutout portion 132d, so that the heat generated by the optical component 124 and conducted through the substrate 122 can be discharged to the rear of the frame 130. Thus, the heat dissipation efficiency of the optical component 124 can be improved.

[0112] Thus, it is possible to simultaneously improve the heat dissipation efficiency of the display device 100 , improve the light efficiency by increasing the optical distance OG2 , and / or improve the structural stability of the combination of the optical assembly 124 and the substrate 122 and the frame 130 .

[0113] Reference Figures 1 to 16 The display device may include: a display panel; a frame located behind the display panel and combined with the display panel; a substrate located on the frame between the display panel and the frame; an optical component installed on the substrate and providing light to the display panel; and a reflective sheet located on the frame and the substrate, having a hole for the optical component to pass through, reflecting the light provided by the optical component to the display panel, the frame may include: a sheet supporting portion supporting the reflective sheet; a substrate supporting portion forming a step lowered from the sheet supporting portion and forming a gap with the reflective sheet; and a cutting portion penetrating the frame on one side of the substrate supporting portion and forming an opening, the substrate may be located on the substrate supporting portion of the frame and inserted into the cutting portion.

[0114] The front surface of the substrate may be supported by the rear surface of the sheet supporting portion of the frame, and the rear surface of the substrate may be supported by the front surface of the substrate supporting portion of the frame.

[0115] The invention may further include a sealing sheet which covers the cut portion from the back side of the frame and is fixed to the frame.

[0116] The frame may further include a rigid portion forming a step lowered from the sheet supporting portion or the substrate supporting portion, and the substrate may further include a connector electrically connected to the optical component, and the connector may be located adjacent to the rigid portion.

[0117] A cable connected to the connector may also be included, and the cable may be routed on the rigid portion.

[0118] The frame may include: a first substrate supporting portion, forming a step lowered from the sheet supporting portion; and a second substrate supporting portion, forming a step lowered from the sheet supporting portion and opposite to the first substrate supporting portion across the sheet supporting portion. The substrate may include: a first substrate, located in the first substrate supporting portion; and a second substrate, located in the second substrate supporting portion.

[0119] The rigid part of the frame may connect the first substrate supporting part and the second substrate supporting part and form a step lowered from the plurality of substrate supporting parts, and a cable connecting a connector of the first substrate and a connector of the second substrate may be routed between the rigid part and the reflective sheet.

[0120] The cable may include a plurality of wires, and the plurality of wires may be bundled by a wire clamp.

[0121] The frame may further include a cable hole penetrating the sheet support portion or the rigid portion, and the cable may pass through the cable hole and extend from the front side of the frame to the back side of the frame.

[0122] The frame may further include: a sealing member inserted into the cable hole and allowing the cable to pass through; and a power source located at the rear of the frame, and the cable may be electrically connected to the power source at the rear of the frame.

[0123] An adhesive member may be included that is located between the substrate and the substrate supporting portion and fixes the substrate to the substrate supporting portion.

[0124] The invention may include: a diffusion plate located between the reflection sheet and the display panel and supported by the frame; and an optical sheet located between the display panel and the diffusion plate and including at least one sheet.

[0125] 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.

[0126] 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.

[0127] 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, located behind the display panel and combined with the display panel; a substrate, located on the frame between the display panel and the frame; an optical component mounted on the substrate and providing light to the display panel; as well as a reflective sheet, located on the frame and the substrate, having a hole for the optical component to pass through, and reflecting the light provided by the optical component to the display panel, The framework includes: A sheet supporting portion, supporting the reflecting sheet; a substrate supporting portion forming a step lowered from the sheet supporting portion and forming a gap with the reflective sheet; and The cutout portion penetrates through the frame and is open on one side of the substrate support portion. The substrate is located on the substrate supporting portion of the frame and inserted into the cutout portion.

2. The display device according to claim 1, wherein: The front surface of the substrate is supported by the back surface of the sheet supporting portion of the frame, The back surface of the substrate is supported by the front surface of the substrate supporting portion of the frame.

3. The display device according to claim 2, wherein: The invention also includes a sealing sheet which covers the cut portion from the back side of the frame and is fixed to the frame.

4. The display device according to claim 1, wherein: The frame further includes a rigid portion forming a step lowered from the sheet supporting portion or the substrate supporting portion, The substrate further comprises a connector electrically connected to the optical component. The connector is located adjacent to the rigid portion.

5. The display device according to claim 4, wherein: Also included is a cable connected to the connector, The cables are routed on the rigid portion.

6. The display device according to claim 4, wherein: The framework includes: a first substrate supporting portion forming a step lowered from the sheet supporting portion; and a second substrate supporting portion which forms a step lower than the sheet supporting portion and faces the first substrate supporting portion across the sheet supporting portion; The substrate comprises: A first substrate, located on the first substrate supporting portion; and The second substrate is located on the second substrate supporting portion.

7. The display device according to claim 6, wherein: The rigid part of the frame connects the first substrate supporting part and the second substrate supporting part and forms a step lowered from the plurality of substrate supporting parts. A cable connecting the connector of the first substrate and the connector of the second substrate is routed between the rigid portion and the reflective sheet.

8. The display device according to claim 7, wherein: The cable comprises a plurality of wires, The plurality of electric wires are bundled by electric wire clamps.

9. The display device according to claim 8, wherein: The frame further includes a cable hole penetrating the sheet support portion or the rigid portion, The cable passes through the cable hole and extends from the front side of the frame to the back side of the frame.

10. The display device according to claim 9, wherein: Also includes: A sealing member, inserted into the cable hole and allowing the cable to pass through; as well as The power supply, located at the rear of the frame, The cable is electrically connected to the power source at the rear of the frame.

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