KR102625269B1 - Display device - Google Patents

Abstract

A display device is disclosed. The display device of the present disclosure includes: a display panel; a frame located behind the display panel; a light guide plate positioned between the display panel and the frame; a housing including a rear part that supports the light guide plate between the light guide plate and the frame, and a side part that intersects the rear part and faces one side of the light guide plate; a substrate positioned between the side part and one side of the light guide plate and coupled to the side part; And, it may include a light source located on the substrate and providing light toward the one side of the light guide plate, and the side part: a support part protruding from the side part and facing the rear part with respect to the substrate. It can be included.

Description

Display device {DISPLAY DEVICE}

This disclosure relates to display devices.

As the information society develops, the demand for display devices in various forms is increasing, and in response to this, in recent years, LCD (Liquid Crystal Display Device), PDP (Plasma Display Panel), ELD (Electro luminescent display), and VFD (Vacuum Fluorescent) have been developed. Various display devices such as OLED (Organic Light Emitting Diode) and OLED (Organic Light Emitting Diode) are being researched and used.

Among these, the LCD panel has a TFT substrate and a color substrate that face each other with a liquid crystal layer in between, and can display images using light provided from a backlight unit.

Recently, much research has been conducted on structures that slim the edges of display devices. Additionally, in response to the reduction in the width of the backlight unit substrate, much research is being conducted on structures that effectively remove heat from the light source.

The present disclosure aims to solve the above-described problems and other problems.

Another purpose may be to provide a structure that can effectively remove heat from a light source of a backlight unit.

Another purpose may be to provide a structure that can minimize loss of light efficiency due to heat from a light source.

Another purpose may be to provide a structure that can minimize light loss due to the light source being arranged misaligned with the light guide plate.

Another purpose may be to provide a structure that can improve the assembly of a substrate and a housing including a light source.

According to one aspect of the present disclosure for achieving the above or other objects, a display device includes: a display panel; a frame located behind the display panel; a light guide plate located between the display panel and the frame; a housing including a rear part that supports the light guide plate between the light guide plate and the frame, and a side part that intersects the rear part and faces one side of the light guide plate; a substrate positioned between the side part and one side of the light guide plate and coupled to the side part; And, it may include a light source located on the substrate and providing light toward the one side of the light guide plate, and the side part may include: a support part protruding from the side part and facing the rear part with respect to the substrate. It can be included.

The effects of the display device according to the present disclosure will be described as follows.

According to at least one of the embodiments of the present disclosure, a structure capable of effectively removing heat from a light source of a backlight unit can be provided.

According to at least one of the embodiments of the present disclosure, a structure that can minimize loss of light efficiency due to heat of a light source can be provided.

According to at least one of the embodiments of the present disclosure, it is possible to provide a structure that can minimize light loss due to the light source being arranged misaligned with the light guide plate.

According to at least one of the embodiments of the present disclosure, it is possible to provide a structure that can improve the assembly of a substrate and a housing including a light source.

Additional scope of applicability of the present disclosure will become apparent from the detailed description that follows. However, since various changes and modifications within the spirit and scope of the present disclosure may be clearly understood by those skilled in the art, the detailed description and specific embodiments such as preferred embodiments of the present disclosure should be understood as being given only as examples.

1 to 17 are diagrams showing examples of display devices according to embodiments of the present disclosure.

Hereinafter, embodiments disclosed in the present specification will be described in detail with reference to the attached drawings. However, identical or similar components will be assigned the same reference numbers regardless of reference numerals, and duplicate descriptions thereof will be omitted.

The suffixes “module” and “part” for components used in the following description are given or used interchangeably only for the ease of preparing the specification, and do not have distinct meanings or roles in themselves.

Additionally, in describing the embodiments disclosed in this specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed descriptions will be omitted. In addition, the attached drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical idea disclosed in this specification is not limited by the attached drawings, and all changes included in the spirit and technical scope of the present disclosure are not limited. , should be understood to include equivalents or substitutes.

Terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Referring to FIG. 1, the display device 1 may include a display panel 10. The display panel 10 can display a screen.

The display device 1 has a first long side (LS1), a second long side (LS2) opposite the first long side (LS1), a first long side (LS1), and a second long side (LS2). It may include a first short side (SS1) adjacent to and a second short side (SS2) opposite the first short side (SS1). Meanwhile, for convenience of explanation, the lengths of the first and second long sides LS1 and LS2 are shown and described as being longer than the lengths of the first and second short sides SS1 and SS2. It may be possible that the length of (LS1, LS2) is approximately the same as the length of the first and second short sides (SS1, SS2).

The direction parallel to the long sides (LS1, LS2) of the display device 1 may be referred to as the left and right direction or the first direction DR1. The direction parallel to the short sides (SS1, SS2) of the display device 1 may be referred to as the vertical direction or the second direction DR2. The direction perpendicular to the long sides (LS1, LS2) and short sides (SS1, SS2) of the display device 1 may be referred to as the front-back direction or the third direction DR3.

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

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. Additionally, the point where the first long side (LS1), the second long side (LS2), the first short side (SS1), and the second short side (SS2) meet each other may be called a corner.

For example, the point where the first short side SS1 and the first long side LS1 meet may be referred to as the first corner C1. The point where the first long side (LS1) and the second short side (SS2) meet may be referred to as the second corner (C2). The point where the second short side (SS2) and the second long side (LS2) meet may be referred to as the third corner (C3). The point where the second long side (LS2) and the first short side (SS1) meet may be referred to as the fourth corner (C4).

Referring to FIG. 2, the display device 1 includes a display panel 10, a front cover 15, a guide panel 13, a backlight unit 20, a frame 60, and a back cover 70. You can.

The display panel 10 can form the front of the display device 1 and can display images. The display panel 10 can display an image by having a plurality of pixels output RGB (Red, Green or Blue) for each pixel in accordance with the timing. The display panel 10 can be divided into an active area where an image is displayed and a de-active area where an image is not displayed. The display panel 10 may include a front substrate and a rear substrate that face each other with a liquid crystal layer interposed therebetween. The display panel 10 may be referred to as an LCD panel.

The front substrate may include a plurality of pixels consisting of red, green, and blue subpixels. The front board can output light corresponding to the colors of red, green, or blue depending on the control signal.

The rear substrate may include switching elements. The rear substrate can switch pixel electrodes. For example, the pixel electrode can change the molecular arrangement of the liquid crystal layer according to an externally input control signal. The liquid crystal layer may include liquid crystal molecules. The arrangement of liquid crystal molecules can change in response to the voltage difference generated between the pixel electrode and the common electrode. The liquid crystal layer may transmit light provided from the backlight unit 20 to the front substrate or block it.

The front cover 15 may cover at least a portion of the front and side surfaces of the display panel 10. The front cover 15 can be divided into a front cover located on the front of the display panel 10 and a side cover located on the side. The front cover and the side cover may be provided separately or may be provided as one body. At least one of the front cover or the side cover may be omitted.

The guide panel 13 may surround the periphery of the display panel 10 and cover the side of the display panel 10. The guide panel 13 may be coupled to the display panel 10 or may support the display panel 10. The guide panel 13 may be referred to as a panel guide or side frame.

The backlight unit 20 may be located behind the display panel 10. The backlight unit 20 may include light sources. The backlight unit 20 may be coupled to the frame 60 from the front of the frame 60. The backlight unit 20 may be driven in a full driving method or a partial driving method such as local dimming or impulsive driving. The backlight unit 20 may include an optical sheet 40 and an optical layer 30.

The optical sheet 40 can evenly transmit light from the light source to the display panel 10. The optical sheet 40 may be composed of a plurality of layers. For example, the optical sheet 40 may include a prism sheet or a diffusion sheet. Meanwhile, the coupling portion 40d of the optical sheet 40 may be coupled to the front cover 15, the frame 60, or the back cover 70.

The frame 60 may be located behind the backlight unit 20 and may support the components of the display device 1. For example, a backlight unit 20, a PCB (Printed Circuit Board) on which a plurality of electronic devices are located, etc. may be coupled to the frame 60. The frame 60 may include a metal material such as aluminum alloy. Frame 60 may be referred to as a main frame or module cover.

The back cover 70 may cover the rear of the frame 60. The back cover 70 may be coupled to the frame 60 and/or the front cover 15. For example, the back cover 70 may be an injection molded product made of resin. For another example, the back cover 70 may include a metal material.

Referring to FIG. 3 , the optical layer 30 may include a substrate 31, at least one optical assembly 32, a reflective sheet 37, and a light guide plate 36. The optical sheet 40 may be located in front of the optical layer 30.

The substrate 31 may extend in the left and right directions and may be adjacent to the circumference of the light guide plate 36. For example, the substrate 31 may be adjacent to the lower side of the light guide plate 36. At least one optical assembly 32 may be mounted on the substrate 31 . That is, the light source of the backlight unit 20 may be placed at the edge of the backlight unit 20. An electrode pattern is formed on the substrate 31 to connect the adapter and the optical assembly 32. For example, the electrode pattern may be a carbon nanotube electrode pattern. The substrate 31 may be composed of at least one of polyethylene terephthalate (PET), glass, polycarbonate (PC), or silicon. The substrate 31 may be a printed circuit board (PCB) on which at least one optical assembly 32 is mounted.

The optical assembly 32 may be a light emitting diode (LED) chip or a light emitting diode package including at least one light emitting diode chip. The light assembly 32 may be composed of a colored LED or a white LED that emits at least one color among colors such as red, green, and blue. The colored LED may include at least one of a red LED, a green LED, or a blue LED.

The light guide plate 36 may be located behind the optical sheet 40. Most of the light provided from the light assembly 32 may be transmitted to the inside of the light guide plate 36. The light guide plate 36 may reflect light received from the light assembly 32 forward.

The reflective sheet 37 may be located behind the light guide plate 36. The reflective sheet 37 may reflect light provided from the light assembly 32 or reflected from the light guide plate 36 forward. For example, the reflective sheet 37 may include a metal and/or metal oxide having a high reflectivity, such as at least one of aluminum (Al), silver (Ag), gold (Au), or titanium dioxide (TiO2). You can.

The optical sheet 40 may include at least one sheet. For example, the optical sheet 40 may include one or more prism sheets and/or one or more diffusion sheets. A plurality of sheets of the optical sheet 40 may be glued or in close contact with each other.

Specifically, the optical sheet 40 may be composed of a plurality of sheets with different functions. For example, the optical sheet 40 may include a first optical sheet 40a, a second optical sheet 40b, and a third optical sheet 40c. For example, the first optical sheet 40a may be a diffusion sheet, and the second optical sheet 40b and the third optical sheet 40c may be prism sheets. The diffusion sheet prevents the light coming from the diffusion plate 35 from being partially concentrated, thereby making the distribution of light more uniform. The prism sheet can condense the light coming from the diffusion plate 35 and provide it to the display panel 10. Meanwhile, the number and/or location of the diffusion sheet and the prism sheet may be changed.

Meanwhile, the optical layer 30 may include a diffusion plate 35 located between the light guide plate 36 and the optical sheet 40.

Referring to Figures 4 and 5, the frame 60 may include a flat part 61 and a bending part 62. The flat portion 61 may form the front surface of the frame 60 and may be formed to be generally flat. The bending portion 62 may be bent forward from the edge of the flat portion 61 and may extend along the edge of the flat portion 61.

The housing 80 may be located on the flat plate portion 61. Housing 80 may be adjacent to the lower side of frame 60. The housing 80 may include a rear part 81, a protrusion 82, and a side part 85. The rear part 81 may be coupled to or fixed to the flat portion 61. The protrusion 82 may protrude forward from the front of the rear part 81. The side part 85 may be bent forward at the bottom of the rear part 81 and may protrude further forward than the protrusion 82. The side part 85 may be located between the bending portion 62 and the protrusion 82 and may be spaced apart from the bending portion 62 and the protrusion 82. The housing 80 may include a metal material such as aluminum (Al). The housing 80 may be referred to as a heat sink (80).

The guide panel 13 may include a vertical portion 13V and a horizontal portion 13H. The vertical portion 13V may extend along the bending portion 62 and cover the outside of the bending portion 62. The horizontal portion 13H may intersect the vertical portion 13V and may cover a portion of the front of the frame 60 and the housing 80.

The light guide plate 36 may be positioned between the horizontal portion 13H and the protruding portion 82. The reflective sheet 37 may be coupled to the back of the light guide plate 36. The pad 37a may be located between the reflective sheet 37 and the protrusion 82 and may be coupled to the protrusion 82. The optical sheet 40 may be coupled to the front of the light guide plate 36 and may include, for example, a first optical sheet 40a and a second optical sheet 40b. Accordingly, the portion adjacent to the lower side of the light guide plate 36 may be supported by the protrusion 82. Meanwhile, portions adjacent to the upper, left, and right sides of the light guide plate 36 may be supported by the frame 60 .

The display panel 10 may face the optical sheet 40 with respect to the horizontal portion 13H. The front pad FP may be located between the display panel 10 and the horizontal portion 13H and may be coupled to the horizontal portion 13H. The first rear pad RP1 may be located between the horizontal portion 13H and the optical sheet 40 and may be coupled to the horizontal portion 13H. The second rear pad RP2 may be located between the horizontal portion 13H and the light guide plate 36 and may be coupled to the horizontal portion 13H.

The end frame 17 may include a first part 17V and a second part 17H. The first part 17V may extend along the vertical portion 13V and cover the outside of the vertical portion 13V. The second part 17H may intersect the first part 17V and cover a portion of the front of the guide panel 13 and the display panel 10. The pad DP may be located between the second part 17H and the display panel 10 and may be coupled to the second part 17H.

Meanwhile, the cable C may be electrically connected to the display panel 10 and the source printed circuit board (B). The cable (C) may pass between the guide panel 13 and the end frame 17 and may be connected to the source PCB (B) at the rear of the frame 60. For example, the cable (C) may be a flexible flat cable (FFC).

Referring to Figures 6 and 7, the housing 80 may extend long in the left and right directions. Housing 80 may be adjacent to the lower side of frame 60 (see FIG. 4). In the front-to-back direction, the height h2 of the side part 85 may be greater than the height h1 of the protrusion 82.

The press portions 83 and 84 may be formed by pressing the housing 80 from the rear to the front. The press parts 83 and 84 may oppose the side part 85 with respect to the protrusion 82 .

The substrate 31 may be positioned between the side part 85 and the protrusion 82 and may be coupled to the side part 85. The substrate 31 may be spaced downward from the protrusion 82 . The substrate 31 may extend along the side part 85 . For example, the substrate 31 may be a Metal Core Printed Circuit Board (MCPCB).

A plurality of light sources 32 may be positioned on the substrate 31 between the substrate 31 and the protrusion 82 . The plurality of light sources 32 may be spaced apart from each other in the longitudinal direction of the substrate 31, that is, in the left and right directions. A plurality of light sources 32 may be arranged in a row in the left and right directions.

The guard 33 may be positioned on the substrate 31 between the substrate 31 and the protrusion 82 . The guard 33 may extend in the longitudinal direction of the substrate 31, that is, in the left and right directions. The guard 33 may be disposed closer to the front end of the side part 85 than to the rear end. For example, the guard 33 may be an injection molded product made of resin or silicone.

Additionally, the guard 33 may include a plurality of slots 33S that are elongated left and right. The plurality of light sources 32 may be grouped into a plurality of groups, for example, each group may include three light sources. Each of the plurality of groups may be located in each of the plurality of slots 33S. In other words, one slot can surround one group of light sources. The guard 33 may be referred to as a protector or barrier.

Referring to FIG. 8, the light source 32 may be directed to one side, that is, the lower side, of the light guide plate 36. The light source 32 may be an LED and may be operated by receiving power from a power device (not shown) through the substrate 31. The thickness t3 of the guard 33 may be greater than the thickness of the light source 32. Accordingly, the guard 33 can prevent collision between the light guide plate 36 and the light source 32.

The vertical pad 38 may be located between the substrate 31 and the side part 85 and may be coupled to the substrate 31 and the side part 85. The vertical pad 38 may have adhesive properties. Accordingly, heat generated from the light source 32 can be easily transferred to the side part 85 through the substrate 31 and the vertical pad 38. The vertical pad 38 may include a silicon-based material. The vertical pad 38 may be referred to as a vertical heat dissipation pad.

An air gap (80h) may be formed between the bending portion 62 and the side part 85. A plurality of grooves 86 may be formed on the lower surface of the side part 85, which may be formed in the air gap. The plurality of grooves 86 may extend in the longitudinal direction of the side part 85, that is, in the left and right directions, and may be spaced apart from each other in the front and rear directions. The plurality of grooves 86 may have an uneven shape that is repeated at regular intervals. Accordingly, the heat of the side part 85 can be easily dissipated into the gap 80h.

9 and 10, the support portion 87 may extend from the front end of the side part 85 in a direction intersecting the side part 85. In the front-to-rear direction, the support portion 87 may overlap a portion of the rear part 81. In the front-back direction, the distance (ha) between the support portion 87 and the rear part 81 may be greater than the height (hb) of the substrate 31. In the front-back direction, the distance (ha) between the support portion 87 and the rear part 81 may be equal to or smaller than the diagonal length (hc) of the cross section of the substrate 31.

The horizontal pad 39 may be located between the substrate 31 and the rear part 81 and may be coupled to the substrate 31 and the rear part 81. The horizontal pad 39 may have adhesive properties. The thickness t6 of the horizontal pad 39 may be equal to the difference between the distance (ha) and the height (hb).

The substrate 31 may be inserted between the support portion 87 and the horizontal pad 39. The rear end of the substrate 31 may contact the horizontal pad 39, and the front end of the substrate 31 may contact the inner surface of the support portion 87. In other words, the horizontal pad 39 can press the substrate 31 toward the support portion 87.

Accordingly, the heat generated from the light source 32 can be easily transferred from the substrate 31 to the support portion 87, and can be easily transmitted to the rear part 81 through the substrate 31 and the horizontal pad 39. It can be. The horizontal pad 39 may include a silicon-based material. The horizontal pad 39 may be referred to as a horizontal heat dissipation pad. An air gap (AG) may be formed between the bending portion 62 and the side part 85.

Additionally, the position of the substrate 31 may be fixed between the support portion 87 and the horizontal pad 39 by the support portion 87 . The light source 32 may be aligned to the center line of the lower side of the light guide plate 36. The center line may pass through the center of the lower side and extend in the left and right directions. That is, the support portion 87 can prevent incorrect assembly of the substrate 31, improve the stability of the substrate 31, and minimize light loss of the light source 32.

Referring to FIG. 11, the length La of the support portion 87 is greater than the sum of the thickness t5 of the vertical pad 38, the thickness t1 of the substrate 31, and the thickness t3 of the guard 33. It can be small. Accordingly, interference between the light guide plate 36 and the support portion 87 can be prevented. In contrast, if the length La of the support portion 87 is greater than the sum of the thickness t5 of the vertical pad 38, the thickness t1 of the substrate 31, and the thickness t3 of the guard 33, the light guide plate 36 may collide with support 87 (see dotted line and arrow in FIG. 11).

Referring to FIG. 12 , a chamfer 870 may be formed at a corner of the support portion 87 toward the light guide plate 36 . For example, the chamfer 870 (see FIG. 12) may be formed to be inclined. For another example, the chamfer 870' (see FIG. 9) may be formed to be round. Accordingly, the substrate 31 can be easily inserted between the support portion 87 and the rear part 81 by the chamfers 870 and 870'.

The length (Lb) of the portion of the support portion 87 excluding the chamfers 870 and 870' may be equal to or greater than the sum of the thickness t5 of the vertical pad 38 and the thickness t1 of the substrate 31. . In the vertical direction, the length of the chamfers 870 and 870' is obtained by subtracting the sum of the thickness t5 of the vertical pad 38 and the thickness t1 of the substrate 31 from the length Lc of the support portion 87 and It may be equal to or smaller than this. Accordingly, the entire front end of the substrate 31 can contact the support part 87, and as a result, the heat dissipation performance of the light source 32 through the support part 87 can be maximized.

13 to 15, heat dissipation performance can be compared depending on the thickness of the substrate 31 and the presence or absence of the support portion 87. In Case 1-4 described later, the vertical width of the substrate 31 may be the same at 10.0 mm, and heat dissipation performance is compared at a power consumption of 178W.

Referring to (a) of FIG. 13, in Case 1, the thickness t11 of the substrate 31 may be 0.8 mm. Referring to (b) of FIG. 13, in Case 2, the thickness t12 of the substrate 31 may be 0.6 mm. Referring to (c) of FIG. 13, in Case 3, the thickness t13 of the substrate 31 may be 0.8 mm, and the above-described support portion 87 and horizontal pad 39 are disposed in front and behind the substrate 31. It can be. Referring to (d) of FIG. 13, in Cas3 4, the thickness (t14) of the substrate 31 may be 0.6 mm, and the above-described support portion 87 and horizontal pad 39 are disposed in front and behind the substrate 31. It can be.

Referring to (a) of FIG. 14, it can be seen that in Cases 1 and 2, the thicker the substrate 31 is, the lower the temperature is. Referring to (b) of FIG. 14, it can be seen that in Cases 3 and 4, the thicker the substrate 31 is, the lower the temperature is. That is, the larger the thickness of the substrate 31, the easier the heat from the light source 32 can spread to the substrate 31 and the housing 80.

Referring to (a) of FIG. 15, in Cases 1 and 3, if the thickness of the substrate 31 is the same, the temperature is lower in the case where the support portion 87 and the horizontal pad 39 are provided compared to the case where the support portion 87 and the horizontal pad 39 are not provided. You can check that. Referring to (b) of FIG. 15, in Cases 2 and 4, if the thickness of the substrate 31 is the same, the temperature is lower in the case where the support portion 87 and the horizontal pad 39 are provided compared to the case where the support portion 87 and the horizontal pad 39 are not provided. You can check that. That is, by providing the support portion 87 and the horizontal pad 39, heat from the light source 32 can be easily diffused into the housing 80.

Referring to FIG. 16, the housing 80 may include the plurality of grooves 86, the support portion 87, and the horizontal pad 39 described above. Accordingly, the heat of the light source 32 can be more easily removed.

Referring to FIG. 17, in the left and right direction, the length of the side part 85 and the substrate 31 may be greater than the length of the rear part 81. A portion 310 of the substrate 31 may cover the left side and/or the right side of the rear part 81 . The side pad 39a may be located between a portion 310 of the substrate 31 and the rear part 81, and may be coupled to the portion 310 of the substrate 31 and the rear part 81. The side pad 39a may have adhesive properties. Accordingly, heat generated from the light source 32 can be easily transferred to the rear part 81 through the substrate 31 and the side pad 39a. The side pad 39a may include a silicon-based material. The side pad 39a may be referred to as a side heat dissipation pad.

1 to 17, a display device according to one aspect of the present disclosure includes: a display panel; a frame located behind the display panel; a light guide plate located between the display panel and the frame; a housing including a rear part that supports the light guide plate between the light guide plate and the frame, and a side part that intersects the rear part and faces one side of the light guide plate; a substrate positioned between the side part and one side of the light guide plate and coupled to the side part; And, it may include a light source located on the substrate and providing light toward the one side of the light guide plate, and the side part may include: a support part protruding from the side part and facing the rear part with respect to the substrate. It can be included.

The light source may be aligned to the center line of one side of the light guide plate.

The front end of the substrate may contact the inner surface of the support portion.

The display device may further include a horizontal pad positioned between the substrate and the rear part and coupled to the rear part, and a rear end of the substrate may be positioned on the horizontal pad.

The display device may further include: a vertical pad positioned between the substrate and the side part and coupled to the side part, and a side of the substrate may be positioned on the vertical pad.

The display device may further include: a guard positioned on the substrate and having a slot surrounding the light source, and the thickness of the guard may be greater than the thickness of the light source.

The protruding length of the support portion may be less than the sum of the thickness of the vertical pad, the thickness of the substrate, and the thickness of the guard.

The protruding length of the support portion may be equal to or greater than the sum of the thickness of the vertical pad and the thickness of the substrate.

The support portion may be located in front of the light guide plate, and the support portion may further include: a chamfer formed on an edge of the support portion facing toward the light guide plate, and a portion of the support portion excluding the chamfer protrudes. The length may be equal to or greater than the sum of the thickness of the vertical pad and the thickness of the substrate.

The housing and the substrate may extend long along the one side of the light guide plate, and the side part includes: a first surface to which the substrate is coupled; a second side facing the first side; Additionally, it may include a plurality of grooves formed on the second surface, extending in the longitudinal direction of the housing, and spaced apart from each other in a direction intersecting the longitudinal direction of the housing.

The frame includes: a flat portion to which the rear part is coupled; In addition, it may include a bending portion that is bent forward from the edge of the flat portion and covers the second surface of the side part, and an air gap is formed between the bending portion and the second surface of the side part. can be formed.

The housing and the substrate may extend long along the one side of the light guide plate, the length of the side part and the substrate may be greater than the length of the rear part, and a portion of the substrate may be longer than that of the rear part. The display device may further include: a side pad positioned between the portion of the substrate and the rear part and coupled to the portion of the substrate and the rear part.

The housing: protrudes forward from the front of the rear part, supports the rear of the light guide plate, and may further include a protrusion spaced apart from the substrate.

The display device may further include: a reflective sheet positioned between the rear surface of the light guide plate and the protrusion and coupled to the rear surface of the light guide plate.

The light source may be an LED, the housing may include a metal material, and the substrate may be a Metal Core Printed Circuit Board (MCPCB).

Any or other embodiments of the present disclosure described above are not exclusive or distinct from each other. In certain embodiments or other embodiments of the present disclosure described above, each configuration or function may be used in combination or combined.

For example, this means that configuration A described in a particular embodiment and/or drawing may be combined with configuration B described in other embodiments and/or drawings. In other words, even if the combination between components is not directly explained, it means that combination is possible, except in cases where it is explained that combination is impossible.

The above detailed description should not be construed as restrictive in any respect and should be considered illustrative. 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 are included in the scope of the present invention.

Claims (15)

display panel;
a frame located behind the display panel;
a light guide plate positioned between the display panel and the frame;
A housing including a rear part that supports the light guide plate between the light guide plate and the frame, a side part that intersects the rear part and faces one side of the light guide plate, and a support part that crosses the side part and faces the rear part. ;
a substrate fixed to the side part between the support part and the rear part and having one surface facing the one side of the light guide plate;
a light source located on the one side of the substrate and providing light toward the one side of the light guide plate; and,
A guard located on the one surface of the substrate and having a slot into which the light source is inserted,
The one side of the light guide plate is,
A display device that contacts the guard to cover the slot and is spaced apart from the light source. According to claim 1,
The light source is,
A display device aligned with the center line of one side of the light guide plate. According to claim 1,
A display device wherein the front end of the substrate contacts the inner surface of the support portion. According to clause 3,
It is located between the substrate and the rear part and further includes a horizontal pad coupled to the rear part,
A display device where the rear end of the substrate is located on the horizontal pad. According to clause 3,
It is located between the substrate and the side part and further includes a vertical pad coupled to the side part,
A display device where the side of the substrate is located on the vertical pad. According to clause 5,
The slots of the guard surround the sides of the light source,
A display device in which the thickness of the guard is greater than the thickness of the light source. According to clause 6,
The protruding length of the support is,
A display device smaller than the sum of the thickness of the vertical pad, the thickness of the substrate, and the thickness of the guard. According to claim 5,
The protruding length of the support is,
A display device that is equal to or greater than the sum of the thickness of the vertical pad and the thickness of the substrate. According to clause 5,
The support portion is located in front of the light guide plate,
The supports:
Further comprising a chamfer formed at a corner of the support portion facing toward the light guide plate,
The protruding length of the portion of the support portion excluding the chamfer is,
A display device that is equal to or greater than the sum of the thickness of the vertical pad and the thickness of the substrate. According to claim 1,
The housing and the substrate,
extending long along the one side of the light guide plate,
The side parts are:
a first surface to which the substrate is bonded;
a second side facing the first side; and,
A display device comprising a plurality of grooves formed on the second surface, extending in the longitudinal direction of the housing, and spaced apart from each other in a direction intersecting the longitudinal direction of the housing. According to claim 10,
The frame is:
a flat plate to which the rear part is coupled; and,
It includes a bending portion that is bent forward from the edge of the flat portion and covers the second surface of the side part,
A display device in which an air gap is formed between the bending portion and the second surface of the side part. According to claim 1,
The housing and the substrate,
extending long along the one side of the light guide plate,
The length of the side part and the substrate is,
is greater than the length of the rear part,
A portion of the substrate covers a side surface of the rear part,
A display device further comprising a side pad located between the portion of the substrate and the rear part and coupled to the portion of the substrate and the rear part. According to claim 1,
The housing:
The display device further includes a protrusion that protrudes forward from the front of the rear part, supports the rear of the light guide plate, and is spaced apart from the substrate. According to claim 13,
The display device further includes a reflective sheet positioned between the rear surface of the light guide plate and the protrusion and coupled to the rear surface of the light guide plate. According to claim 1,
The light source is an LED,
The housing includes a metal material,
The substrate is a display device that is a Metal Core Printed Circuit Board (MCPCB).

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