KR102230023B1 - Display device - Google Patents

Abstract

A display device is disclosed. A display device according to the present invention includes: a display panel; A diffusion plate positioned behind the display panel; A frame positioned behind the diffusion plate; And a supporter fastened to the frame, wherein the supporter comprises: a base portion positioned at a rear of the frame; A support portion extending from the base portion toward the diffusion plate and supporting the diffusion plate from the rear; And a fastening part extending from the base part toward the diffusion plate and fixed to the frame, wherein the frame includes an open hole into which the support part is inserted, and a fastening hole into which the fastening part is inserted.

Description

Display device {DISPLAY DEVICE}

The present invention relates to a display device.

As the information society develops, the demand for display devices is also increasing in various forms, and in response to this, in recent years, LCD (Liquid Crystal Display Device), PDP (Plasma Display Panel), ELD (Electro luminescent Display), VFD (Vacuum Fluorescent Display). Display) and other various display devices have been researched and used.

Among them, a liquid crystal panel of an LCD includes a TFT substrate and a color filter substrate facing each other with a liquid crystal layer and a liquid crystal layer therebetween, and an image can be displayed using light provided from the backlight unit.

In recent years, while securing the rigidity of the display device, research has been actively conducted to improve the assembly structure of the display device.

An object of the present invention is to provide a display device capable of minimizing interference between a diffusion plate and a supporter for supporting the diffusion plate.

In addition, an object of the present invention is to provide a display device capable of improving design freedom by specifying the position of a supporter.

A display device according to the present invention includes: a display panel; A diffusion plate positioned behind the display panel; A frame positioned behind the diffusion plate; And

And a supporter fastened to the frame, wherein the supporter comprises: a base portion positioned at a rear of the frame; A support portion extending from the base portion toward the diffusion plate and supporting the diffusion plate from the rear; And a fastening part extending from the base part toward the diffusion plate and fixed to the frame, wherein the frame includes an open hole into which the support part is inserted, and a fastening hole into which the fastening part is inserted.

The support portion may include a stopper that is spaced apart from the base portion by a predetermined interval in an extension direction of the support portion and protrudes in a direction crossing the extension direction.

The preset interval may be set larger than the thickness of the frame.

The stopper may protrude from an outer periphery of the support portion and extend long to surround the entire circumference of the support portion.

The stopper includes a plurality of segments protruding from the outer periphery of the support, and the adjacent segments may be spaced apart by a predetermined interval.

A distance from the center of the support part to the outer periphery of the stopper may be set larger than the radius of the open hole.

The display device according to the present invention includes: substrates positioned between the diffusion plate and the frame, each extending along a first direction, and arranged along a second direction crossing the first direction; And an optical module mounted on the substrates, wherein the supporter is positioned between adjacent substrates in the second direction, and the support part and the fastening part may be arranged along the first direction. I can.

The base portion may include a first portion on which the support portion is located; And a second portion in which the fastening portion is positioned, and the second portion may be positioned on one side and the other side of the first portion, respectively.

The base part may be provided to be deformable and restoreable in response to the movement of the support part.

The support portion may have a shape in which a cross-sectional area gradually decreases from a lower end adjacent to the base portion toward an upper end.

The upper end of the support may have a rounded shape.

The support part may include a buffer member positioned on a friction surface with the diffusion plate.

The supporter may be made of an elastic material.

In the present invention, since interference between a diffusion plate and a supporter for supporting the diffusion plate can be minimized, it is possible to prevent a decrease in optical properties due to damage to the diffusion plate.

In addition, the present invention can improve design freedom by specifying the position of the supporter as a preset position.

1 to 7 are diagrams showing examples of a display device related to the present invention.
8 is a view showing a supporter according to a preferred embodiment of the present invention.
9 is a diagram showing an example of a stopper shape of a supporter.
10 is a diagram showing a coupling relationship between a supporter and a frame according to a preferred embodiment of the present invention.
11 is a diagram illustrating a process of combining a supporter and a frame according to a preferred embodiment of the present invention.
12A to 12C are views for explaining an example of an operation of a supporter according to a preferred embodiment of the present invention and effects thereof.
13 is a view for explaining the position of the stopper according to an embodiment of the present invention.

In the following description, the same or similar elements are assigned the same reference numerals, and duplicate descriptions for the same reference numerals may be omitted.

In the following description, even if an embodiment is described with reference to a specific drawing, if necessary, a reference number not shown in the specific drawing may be referred to, and a reference number not shown in the specific drawing is indicated by the reference number in the remaining drawings. Use only when it appears.

Terms such as first, second, A, B, (a), (b), upper side and lower side used in the following description may be used. These terms are only for distinguishing the component from other components, and the nature, order, or order of the component is not limited by the term.

The suffixes "module" and "unit" for constituent elements used in the following description are given or used interchangeably in consideration of only the ease of writing the specification, and do not themselves have a distinct meaning or role from each other.

In the following description, when it is described that the first component is'connected','coupled','mounted','fastened','contacted' or'connected' to the second component, the first component is the second component Including being'connected','coupled','mounted','fastened','contacted' or'connected' directly to the element, as well as the third element between the first element and the second element It may also include the case of being'connected','coupled','mounted','fastened','contacted' or'connected'.

In the following description, when it is determined that a detailed description of a known technology may obscure the gist of an embodiment of the present invention, a detailed description of the known technology may be omitted.

In the following description, the accompanying drawings are for easy understanding of the embodiments disclosed in the present specification, and the technical idea disclosed in the present specification is not limited by the accompanying drawings, and is included in the spirit and scope of the present invention. It is to be understood to include all modifications, equivalents or substitutes that are made.

Terms such as height, length, width, and width used in the following description may be used interchangeably for convenience of description, and do not themselves have distinct meanings or roles from each other.

Hereinafter, a liquid crystal panel (LCD) will be described as an example of the display panel, but the display panel applicable to the present invention is not limited to the liquid crystal panel.

1 to 7 are diagrams showing examples of a display device related to the present invention.

Referring to FIG. 1, in the following, the display device includes a first long side (LS1), a second long side (LS2) opposite to the first long side (LS1), a first long side (LS1), and a second long side (LS1). A first short side (SS1) adjacent to the second long side (LS2) and a second short side (Second short side, SS2) opposite to the first short side (SS1) may be included.

Here, the first short side area SS1 is referred to as a first side area, the second short side area SS2 is referred to as a second side area opposite to the first side area, and the first The first long side area LS1 is referred to as a third side area adjacent to the first side area and the second side area and positioned between the first side area and the second side area, and the second long side area ( LS2) may be referred to as a fourth side area adjacent to the first side area and the second side area, located between the first side area and the second side area, and facing the third side area. .

In addition, for convenience of explanation, the first and second long sides LS1 and LS2 are illustrated and described as being longer than the first and second short sides SS1 and SS2, but the first and second long sides LS1 and LS2 It may also be possible when the length of LS2) is approximately the same as the lengths of the first and second short sides SS1 and SS2.

In addition, hereinafter, the first direction (DR1) is a direction parallel to the long side (Long Side, LS1, LS2) of the display panel 100, the second direction (Second Direction, DR2) of the display panel 100 It may be in a direction parallel to the short side (SS1, SS2). The third direction DR3 may be a direction perpendicular to the first direction DR1 and/or the second direction DR2.

The first direction DR1 and the second direction DR2 may be collectively referred to as a horizontal direction. In addition, the third direction DR3 may be referred to as a vertical direction.

The side on which the display device displays an image may be referred to as a forward direction or a front side or front surface. When the display device displays an image, the side in which the image cannot be observed may be referred to as a rear side or rear surface. When viewing the display from the front or the front, the side of the first long side LS1 may be referred to as an upper side or an upper surface. Similarly, the second long side LS2 side may be referred to as a lower side or a lower surface. Similarly, the first short side SS1 may be referred to as a right side or a right surface, and the second short side SS2 may be referred to as a left side or a left surface. .

In addition, 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. Also, a 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 referred to as a corner. For example, a point where the first long side LS1 and the first short side SS1 meet is the first corner C1, and the point where the first long side LS1 and the second short side SS2 meet is the second corner C2. ), the second short side (SS2) and the second long side (LS2) meet at the third corner (C3), and the second long side (LS2) and the first short side (SS1) meet at the fourth corner (C4) Can be.

Here, a direction from the first short side SS1 to the second short side SS1 or a direction from the second short side SS2 to the first short side SS1 may be referred to as a left-right direction LR. A direction from the first long side LS1 to the second long side LS2 or a direction from the second long side LS2 to the first long side LS1 may be referred to as a vertical direction UD.

1 and 2, the back cover 150 may be coupled to the display panel 110. In order for the back cover 150 to be coupled to the display panel 110, the back cover 150 and/or other structures adjacent thereto may include a protrusion, a sliding portion, and a coupling portion.

Referring to FIG. 3, the front cover 105 may cover at least some of the front and side surfaces of the display panel 110. The front cover 105 may be divided into a front cover positioned on the front side of the display panel 110 and a side cover positioned on the side side of the display panel 110. The front cover and side cover can be configured separately. Either of the front cover and the side cover may be omitted.

The display panel 110 is provided on the front surface of the display device 100 and may display an image. The display panel 110 may display an image by outputting red, green, or blue (RGB) per pixel according to a timing of a plurality of pixels. The display panel 110 may be divided into an active area in which an image is displayed and a de-active area in which an image is not displayed. The display panel 110 may include a front substrate and a rear substrate facing each other with a liquid crystal layer therebetween.

The front substrate may include a plurality of pixels including red (R), green (G), and blue (B) sub-pixels. The front substrate may output light corresponding to a color of red, green, or blue according to a control signal.

The rear substrate may include switching elements. The rear substrate can switch the pixel electrode. For example, the pixel electrode 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 liquid crystal molecules. The arrangement of liquid crystal molecules may be changed according to a voltage difference generated between the pixel electrode and the common electrode. The liquid crystal layer may transmit or block light provided from the backlight unit 120 to the front substrate.

The backlight unit 120 may be located behind the display panel 110. The backlight unit 120 may include light sources. The backlight unit 120 may be coupled to the frame 130 in front of the frame 130.

The backlight unit 120 may be driven by a full driving method or a partial driving method such as local dimming or impulsive. The backlight unit 120 may include an optical sheet 125 and an optical assembly 123.

The optical sheet 125 may allow light from a light source to be evenly transmitted to the display panel 110. The optical sheet 125 may be composed of layers. For example, the optical sheet 125 may include a prism sheet, a diffusion sheet, or the like.

The optical sheet 125 may be provided with a coupling portion (125d). The coupling portion 125d may be coupled to the front cover 105, the frame 130 and/or the back cover 150. Alternatively, the coupling portion 125d may be formed on the front cover 105, the frame 130, and/or the back cover 150 or may be fastened to a structure coupled to each other.

The optical assembly 123 may be located behind the optical sheet 125. The optical assembly 123 may provide light to the optical sheet 125. The optical assembly 123 may include a light source that generates light.

The frame 130 may serve to support components of the display device 100. For example, a configuration such as the backlight unit 120 may be coupled to the frame 130. The frame 130 may be made of a metal material such as an aluminum alloy.

The back cover 150 may be located at the rear or rear of the display device 100. The back cover 150 may be coupled to the frame 130 and/or the front cover 105. For example, the back cover 150 may be an injection product made of a resin material.

Referring to FIG. 4A, the backlight unit 120 may be positioned in front of the frame 130. The backlight unit 120 may include an optical assembly 123 and an optical sheet 125. The optical assembly 123 may be positioned between the optical sheet 125 and the frame 130. The optical assembly 123 may include a diffusion plate 129.

The optical sheet 125 or/and the diffusion plate 129 may be coupled to the frame 130 at the edge of the frame 130. The optical sheet 125 or/and the diffusion plate 129 may be directly mounted on the edge of the frame 130. That is, the optical sheet 125 or/and the diffusion plate 129 may be supported by the frame 130. The edge surface of the reflective sheet 125 may be covered by the first guide panel 117. For example, the optical sheet 125 or/and the diffusion plate 129 may be positioned between the edge of the frame 130 and the flange 117a of the first guide panel 117.

The display panel 110 may be positioned in front of the optical sheet 125. The edge of the display panel 110 may be supported by the first guide panel 117. An edge region of the front surface of the display panel 110 may be covered by the front cover 105. For example, this means that a part of the display panel 110 may be positioned between the first guide panel 117 and the front cover 105.

Referring to FIG. 4B, the optical sheet 125 or/and the diffusion plate 129 may be coupled to the second guide panel 113. That is, the second guide panel 113 may be coupled to the frame 130, and the optical sheet 125 or/and the diffusion plate 129 may be coupled to the second guide panel 113. The second guide panel 113 may be made of a material different from that of the frame 130. The frame 130 may have a shape surrounding the first and second guide panels 117 and 113. The first or second guide panels 117 and 113 may be referred to as a holder or a support member.

Referring to FIG. 4C, the front cover 105 may not cover the front surface of the display panel 110. That is, one end of the front cover 105 may be located on the side of the display panel 110.

Referring to FIG. 5, the backlight unit 120 may include an optical assembly 123 and an optical sheet 125 positioned on the front side of the optical assembly 123.

The optical assembly 123 may include a substrate 122, at least one optical module 124, a reflective sheet 126, and a diffusion plate 129. The optical assembly 123 may not include some of these components.

The substrate 122 may be configured in the form of a plurality of straps extending in a first direction and spaced apart by a predetermined distance in a second direction orthogonal to the first direction.

At least one optical module 124 may be mounted on the substrate 122. An electrode pattern for connecting the adapter and the optical module 124 to the substrate 122 may be formed. For example, a carbon nanotube electrode pattern for connecting the optical module 124 and the adapter may be formed on the substrate 122.

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 printed circuit board (PCB) on which at least one optical module 124 is mounted.

An optical module 124 may be disposed on the substrate 122 with a predetermined distance in the first direction. The diameter of the optical module 124 may be larger than the width of the substrate 122. That is, it means that the length of the substrate 122 in the second direction may be greater.

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

The optical module 124 may be composed of a colored LED or a white LED that emits at least one color from among colors such as red, blue, and green. The colored LED may include at least one of a red LED, a blue LED, and a green LED.

On the front side of the substrate 122, a reflective sheet 126 may be positioned. The reflective sheet 126 may be positioned on an area of the substrate 122 other than the area in which the optical module 124 is formed. The reflective sheet 126 may have a plurality of through holes 235.

The reflective sheet 126 may reflect light emitted from the optical module 124 to the front side. In addition, the reflective sheet 126 may reflect light reflected from the diffusion plate 129 again.

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

The supporter 300 may be coupled to the reflective sheet 126. The supporter 300 may have a shape protruding from the reflective sheet 126 toward the front. For example, at least a portion of the supporter 300 may be positioned between the reflective sheet 126 and the diffusion plate 129. Alternatively, at least a portion of the supporter 300 may be positioned between the reflective sheet 126 and the optical sheet 125. By the supporter 300, a distance between the reflective sheet 126 and the diffusion plate 129 may be maintained, or a distance between the reflective sheet 126 and the optical sheet 125 may be maintained.

Resin may be deposited on the optical module 124 and/or the reflective sheet 126. The resin may serve to diffuse light emitted from the optical module 124.

The diffusion plate 129 may diffuse light emitted from the optical module 124. A plurality of optical modules 124 may be disposed as a point light source. Light provided to the front from the plurality of optical modules 124 may have different luminance depending on the distance to the optical module 124. The diffusion plate 129 may evenly distribute an illumination profile according to the arrangement of the plurality of optical modules 124.

The optical sheet 125 may be positioned in front of the diffusion plate 129. The rear surface of the optical sheet 125 may be in close contact with the diffusion plate 129, and the front surface of the optical sheet 125 may be in close contact with the rear side of the display panel 110 (see FIG. 1 ).

The optical sheet 125 may include at least one or more sheets. Specifically, the optical sheet 125 may include one or more prism sheets and/or one or more diffusion sheets. A plurality of sheets included in the optical sheet 125 may be adhered and/or adhered to each other.

The optical sheet 125 may be composed of a plurality of sheets having different functions. For example, the optical sheet 125 may include first to third optical sheets 125a to 125c. For example, the first optical sheet 125a may be a diffusion sheet, and the second and third optical sheets 125b and 125c may be prism sheets. The number and/or position of the diffusion sheet and the prism sheet may be changed.

The diffusion sheet may prevent the light emitted from the diffusion plate 129 from being partially concentrated, thereby making the distribution of light more uniform. The prism sheet may provide light to the display panel 110 by condensing light emitted from the diffusion sheet.

The coupling portion 125d may be formed on at least one of the sides or edges of the optical sheet 125. The coupling portion 125d may be formed on at least one of the first to third optical sheets 125a to 125c.

The coupling portion 125d may be formed on the long side of the optical sheet 125. The coupling portion 125d formed on the first long side and the coupling portion 125d formed on the second long side may be asymmetric. For example, it means that the positions and/or the number of the coupling portions 125d on the first long side and the coupling portions 125d on the second long side may be different from each other.

Referring to FIG. 6A, the optical module 124 may be disposed on the front surface of the substrate 122. The plurality of optical modules 124 may be disposed to be spaced apart. The plurality of optical modules 124 may provide light (or rays) to the front.

The reflective sheet 126 may be disposed on the front surface of the substrate 122. The optical module 124 may be disposed between the reflective sheets 126.

The diffusion plate 129 may be positioned in front of the optical module 124. The diffusion plate 129 may be positioned in front of the reflective sheet 126. The diffusion plate 129 may be disposed to be spaced apart from the optical module 124. The diffusion plate 129 may be disposed to be spaced apart from the reflective sheet 126.

The air layer AL may be formed between the diffusion plate 129 and the optical module 124. The air layer AL may be formed between the diffusion plate 129 and the reflective sheet 126. The air layer AL may contain a stable gas. For example, the air layer AL may include a gas that is the same as or similar to the composition of air. For example, the air layer AL may contain nitrogen or/and oxygen.

The optical sheet 125 may be disposed on the front surface of the diffusion plate 129. The optical sheet 125 may include first to third optical sheets 125a, 125b, and 125c. The first optical sheet 125a may be located on the front surface of the diffusion plate 129. The second optical sheet 125b may be positioned on the front surface of the first optical sheet 125a. The third optical sheet 125c may be positioned on the front surface of the third optical sheet 125b.

Referring to FIG. 6B, the optical sheet 125 may include a first optical sheet 125a and a second optical sheet 125b. The first optical sheet 125a may be a diffusion sheet. The second optical sheet 125b may be a prism sheet.

Referring to FIG. 6C, the optical sheet 125 may be positioned in front of the optical module 124. The optical sheet 125 may be positioned in front of the reflective sheet 126. The optical sheet 125 may include a first optical sheet 125a and a second optical sheet 125b. The first optical sheet 125a may be a diffusion sheet. The second optical sheet 125b may be a prism sheet.

The air layer AL may be formed between the optical sheet 125 and the reflective sheet 126. The air layer AL may be formed between the optical sheet 125 and the optical module 124.

Referring to FIG. 7, the reflective sheet 126 may be coupled to the frame 130. For example, the reflective sheet 126 may be coupled to the seating portion 132 formed inside the frame 130. The reflective sheet 126 may have a three-dimensional shape corresponding to the shape of the seating portion 132.

The reflective sheet 126 may include a horizontal coupling portion HH and/or a vertical coupling portion VH. The horizontal coupling portion HH and/or the vertical coupling portion VH may have a shape of an opening formed along a side of the reflective sheet 126.

The horizontal coupling portion HH may be an opening formed along two opposite sides of the reflective sheet 126. The horizontal coupling portion HH may be, for example, an opening formed along the long side of the reflective sheet 126.

The vertical coupling portion VH may be an opening formed along two opposite sides of the reflective sheet 126. The vertical coupling portion VH may be, for example, an opening formed along a short side of the reflective sheet 126.

The frame 130 may include a horizontal protrusion 130H and a vertical protrusion 130V. The horizontal protrusion 130H or the vertical protrusion 130V may be formed along two opposite sides of the frame 130. For example, the horizontal protrusion 130H may be formed along the long side of the frame 130. For example, the vertical protrusion 130V may be formed along a short side of the frame 130.

The horizontal protrusion 130H or the vertical protrusion 130V may protrude toward the front. The horizontal protrusion 130H or the vertical protrusion 130V may be combined with the reflective sheet 126. For example, the horizontal protrusion 130H may be coupled to the horizontal coupling portion HH of the reflective sheet 126. For example, the vertical protrusion 130V may be coupled to the vertical coupling portion VH of the reflective sheet 126.

The guide panel GP may have an elongated rod shape. The guide panel GP may be disposed on the front surface of the reflective sheet 126. The guide panel GP may be disposed along the edge of the reflective sheet 126. The guide panel GP may be formed of a combination of elongated rods.

The guide panel GP may include plastic. The guide panel GP may be formed by injection. The guide panel GP may include metal. The guide panel GP may be formed by pressing.

The substrate 122 may be positioned between the frame 130 and the reflective sheet 126. The optical module 124 may be disposed on the front surface of the substrate 122. The optical module 124 may be located in the lens hole 235 formed in the reflective sheet 126.

The plurality of substrates 122 may be disposed in a horizontal direction or/and a vertical direction. The substrate 122 may be electrically connected to the signal line 121. The substrate 122 may receive power or/and an electric signal from the signal line 121.

The lens hole 125 formed in the reflective sheet 126 may be formed corresponding to the light source 203 disposed on the substrate 122. The light source 203 may be located in the lens hole 125. A portion of the light source 203 and the substrate 122 may be exposed to the front through the lens hole 125. The lens 124b may be positioned in front of the light source 203. The lens 124b may be coupled to a portion of the substrate 122 exposed in front through the lens hole 125.

The reflective sheet 126 can form a supporter hole 205. The supporter 300 may be coupled to the supporter hole 205. The supporter 300 may support a diffusion plate 129 (see FIG. 5) and/or an optical sheet 125 (see FIG. 5) positioned in front of the reflective sheet 126. By the supporter 300, the reflective sheet 126 may be spaced apart from the diffusion plate 129 (see FIG. 5) or/and the optical sheet 125 (see FIG. 5).

The reflective sheet 126 may form a plurality of fixing pin holes 206. The fixing pin 202 may be coupled to the fixing pin hole 206. The fixing pin 202 may be coupled to the frame hole 204 formed in the frame 130. The fixing pin 202 may fasten the reflective sheet 126 to the frame 130.

8 is a view showing a supporter according to a preferred embodiment of the present invention. 9 is a diagram showing an example of a stopper shape of a supporter.

An electronic device according to a preferred embodiment of the present invention may include a supporter 300. The supporter 300 may support the diffusion plate 129 from the rear. The supporter 300 prevents sagging by a load of the diffusion plate 129, sagging due to heat, and/or sagging by an external force provided, so that the diffusion plate 129 and the reflective sheet and/or the diffusion plate 129 and the light The module 124 may be kept in a state spaced apart at a preset interval. That is, the supporter 300 may function to maintain an optical gap between the diffusion plate 129 and the optical module 124 in a use environment. The arrangement position and arrangement density of the supporter 300 may be appropriately selected in consideration of the area of the reflective sheet, the position/density of the optical module 124, and/or the stiffness of the supporter 300.

The supporter 300 may include a base part 310, a support part 320, and a fastening part 330. The base part 310, the support part 320, and the fastening part 330 may be integrally formed, or may be separated from each other and then combined with each other. The supporter 300 may be made of a material having a predetermined elasticity.

The base portion 310 may have a plate shape having a predetermined area. The base portion 310 may be preferably formed to have a relatively large area in order to secure a sufficient contact area with a contacting structure or a fixed structure. As the base portion 310 is formed to have a predetermined area, it can be stably positioned on the frame 130 and a predetermined support force for supporting the diffusion plate 129 can be secured.

The base portion 310 may include a first portion 311 and a second portion 313 outside the first portion 311. The support part 320 may be located in the first part 311, and the fastening part 330 may be located in the second part 313. In the drawing, the first part 311 where the support part 320 is located is located in the center of the base part 310, and the second part 313 where the fastening part 330 is located is based on the first part 311 As an example, a case where each is located on one side and the other side is illustrated as an example, but the present invention is not limited thereto.

The support part 320 may be located on the first part 311 of the base part 310. The support part 320 may extend from the base part 310 toward the diffusion plate 129. The support part 320 is formed to have a predetermined height, and may support the diffusion plate 129. That is, the upper end of the support part 320 may contact the rear surface of the diffusion plate 129.

The support part 320 may have a predetermined cross-sectional area to support the diffusion plate 129. Here, the cross-sectional area may be an area of a portion cut in a plane formed by the X-axis and Y-axis in the drawing. The cross-sectional area of the support part 320 needs to be properly controlled in order to prevent the light provided from the optical module 124 from being blocked by the support part 320. That is, in order to prevent the optical path from being blocked by the support part 320, it is preferable that the cross-sectional area of the support part 320 is set to be relatively narrow.

For example, as shown, the support 320 may have a conical shape. In general, since the light emitted from the optical module 124 is directed toward the diffusion plate 129 but has a predetermined directing angle, there is a problem of blocking the optical path at the lower end of the support part 320 relatively adjacent to the optical module 124. You can write it down. Accordingly, the support part 320 may have a shape whose cross-sectional area gradually decreases from the bottom to the top. However, the shape of the support part 320 is not limited thereto.

The upper end of the support part 320 may have a round shape in order to reduce damage to the diffusion plate 129 due to mutual friction between the support part 320 and the diffusion plate 129. Although not shown, in order to prevent the diffusion plate 129 from being damaged due to interference between the diffusion plate 129 and the support part 320, a buffer member may be positioned on the upper end of the support part 320. That is, the buffer member may be located on the friction surface of the support part 320 in contact with the diffusion plate 129.

The support part 320 may further include a stopper 325 protruding in a lateral direction crossing the extension direction of the support part 320. The stopper 325 may be spaced apart from the base part 310 by a predetermined distance D along the extending direction of the support part 320.

As shown in (a) of FIG. 9, the stopper 325 may be formed in a closed loop shape along the circumference of the support part 320. That is, the stopper 325 protrudes from the outer periphery of the support part 320, and may extend long to surround the entire circumference of the support part 320.

Alternatively, as shown in (b) of FIG. 9, the stopper 325 may be formed in an open loop shape along the circumference of the support part 320. That is, the stopper 325 may include a plurality of segments protruding from the outer periphery of the support part 320. Neighboring segments may be located spaced apart by a preset interval. As described above, the support part 320 may block a path of light provided from the optical module 124. Therefore, it may be desirable that the stopper 325 be provided in the form of a segment divided into a plurality of pieces. That is, in the structure, since light may not be blocked in a region between segments, light efficiency may be improved.

The fastening part 330 may be located on the second part 313 of the base part 310. The fastening part 330 may extend from the base part 310 toward the diffusion plate 129. The fastening part 330 may function to fix the supporter 300 to the frame 130. It may be desirable to provide a plurality of fastening parts 330. The fastening part 330 may be provided in a hook shape.

10 is a diagram showing a coupling relationship between a supporter and a frame according to a preferred embodiment of the present invention. 11 is a diagram illustrating a process of combining a supporter and a frame according to a preferred embodiment of the present invention.

10 and 11, the supporter 300 according to a preferred embodiment of the present invention may be fixed to the frame 130. The supporter 300 may be fastened from the rear side of the frame 130 to the front side.

More specifically, the frame 130 extends from the first body 133 (FIG. 7) covering the rear surface of the backlight unit 120 and the end of the first body 133 to cover the side surface of the backlight unit 120 It may include a second body 134 (Fig. 7). The frame 130 may include an open hole 135 and a fastening hole 137. The open hole 135 and the fastening hole 137 may be formed through the thickness of the frame 130. The open hole 135 and the fastening hole 137 may be formed in the first body 133 of the frame 130.

The supporter 300 may include a base part 310, a support part 320, and a fastening part 330.

The base part 310 may be located behind the frame 130. For example, in one area, the front surface of the base portion 310 and the rear surface of the first body 133 of the frame 130 may face each other. The base portion 310 and the first body 133 of the frame 130 may be in contact with each other face-to-face.

The base portion 310 may include a first portion 311 and a second portion 313. The first portion 311 may be a central portion of the base portion 310. The second part 313 may be one side and/or the other side of the base part 310. For example, the second portion 313 may be positioned on one side and the other side of the first portion 311 with the first portion 311 interposed therebetween.

The support part 320 may extend from the base part 310. The support part 320 may be located on the first part 311 of the base part 310. The support part 320 may pass through the open hole 135 of the frame 130 and extend toward the diffusion plate 129. The support part 320 may support the diffusion plate 129.

The support part 320 may include a stopper 325 protruding from the outer periphery of the support part 320. The stopper 325 may be positioned to be spaced apart from the base part 310 by a predetermined distance. The stopper 325 may be located in front of the frame 130. That is, the frame 130 may be positioned between the stopper 325 and the base portion 310. The interval between the stopper 325 and the base portion 310 may be set larger than the thickness of the frame 130. Although described later, the movement of the support part 320 may be limited within a preset range by a combination structure of the stopper 325, the base part 310, and the frame 130.

The fastening part 330 may extend from the base part 310. The fastening part 330 may be located on the second part 313 of the base part 310. The fastening part 330 may pass through the fastening hole 137 of the frame 130 and extend toward the diffusion plate 129. The fastening part 330 may be provided in a hook shape. Accordingly, as the hook is caught on the front surface of the frame 130, the supporter 300 may be fixed to the frame 130. Since the fastening part 330 has a predetermined elasticity, it may be fitted and coupled from the rear of the frame 130 toward the front of the frame 130. In a preferred embodiment of the present invention, since the supporter 300 is fastened at the rear of the frame 130, the ease of work can be improved compared to the structure of fastening the supporter 300 at the front of the frame 130 in which the parts are arranged. have.

As the fastening portion 330 and the base portion 310 are positioned above and behind the frame 130, respectively, the movement of the supporter 300 may be restricted. That is, the base portion 310 and the frame 130 may be in contact with each other to limit the movement of the supporter 300 to the front, and the fastening portion 330 and the frame 130 may be in contact with each other to the rear of the supporter 300. Movement may be restricted.

A plurality of fastening parts 330 may be provided. For example, the fastening part 330 has a first fastening part 330 located on one side of the support part 320 and a second fastening part located on the other side of the support part 320 with the support part 320 interposed therebetween. It may include (330). However, it is not limited thereto.

12A to 12C are views for explaining an example of an operation of a supporter according to a preferred embodiment of the present invention and effects thereof.

Referring to FIG. 12A, the supporter 300 supports the rear surface of the diffusion plate 129 to prevent the diffusion plate 129 from sagging due to a load, sagging due to heat, and/or sagging due to a provided external force. . However, when the movement of the support part 320 of the supporter 300 is restricted, the support part 320 presses the diffusion plate 129 in response to the deflection of the diffusion plate 129, so that the diffusion plate 129 It can be damaged. When the diffusion plate 129 is damaged, optical properties may deteriorate, which is a problem.

Referring to FIG. 12B, since the supporter 300 according to the present invention is made of a material having a predetermined elasticity, deformation and restoration operations may be repeatedly performed. That is, when an external force corresponding to the deflection of the diffusion plate 129 is provided, deformation may occur in at least a portion of the supporter 300, and when the external force is released, it may be restored again.

More specifically, in a preferred embodiment of the present invention, the support part 320 of the supporter 300 may move toward the rear in response to the deflection of the diffusion plate 129. That is, since the first part 311 of the base part 310 where the support part 320 is located is not fixed to the frame 130 and can be deformed, the support part 320 fixed to the first part 311 Movement may be possible. Therefore, in the preferred embodiment of the present invention, since the movement of the support part 320 is not restricted, the diffusion plate 129 is damaged by the support part 320 of the supporter 300 when sagging of the diffusion plate 129 occurs. Can be prevented.

Even in this case, since the second part 313 of the base part 310 is fixed to the frame 130 through the fastening part 330, the supporter 300 may not be separated from the frame 130.

Referring to FIG. 12C, the movement of the support part 320 may be limited to a preset range by the stopper 325. The support part 320 may move in response to the deflection of the diffusion plate 129. However, the moving range of the support part 320 may be limited to a preset range by the stopper 325. That is, the support part 320 moves in response to the deflection of the diffusion plate 129, but the movement of the support part 320 may be limited until the stopper 325 abuts the frame 130. Accordingly, since the deformation of the base part 310 corresponding to the movement of the support part 320 can be limited to a preset range, damage to the base part 310 due to excessive deformation can be prevented.

To this end, the stopper 325 may be positioned to overlap the frame 130. The distance from the center of the support part 320 to the outer peripheral surface of the stopper 325 may be greater than the radius of the open hole 135.

13 is a view for explaining the position of the stopper according to an embodiment of the present invention.

Referring to FIG. 13, as described above, the optical assembly 123 may include a substrate 122 and an optical module 124. The substrate 122 extends in a first direction (for example, in the X-axis direction), and is spaced apart by a predetermined distance in a second direction (for example, in the Y-axis direction) perpendicular to the first direction. ) Can be configured. The substrate 122 may be positioned on the first body 133 of the frame 130. The substrate 122 may be fixed to the frame 130 through at least one fixing member. At least one optical module 124 may be mounted on the substrate 122. The plurality of optical modules 124 may be arranged on the substrate 122 along the first direction.

The stopper 325 may be positioned between the adjacent substrates 122 in the second direction. The base part 310 may have a shape elongated in a direction in which the substrate 122 extends, for example, in the first direction. That is, the length in the first direction of the base part 310 may be set longer than the length in the second direction, and the first part 311 and the second part 313 of the base part 310 are the first It can be arranged to be adjacent in a direction. Correspondingly, the support part 320 and the fastening part 330 may be located adjacent to each other in the first direction.

In this case, the arrangement design of the substrate 122 may not be restricted by the position of the stopper 325. That is, when the base portion 310 is formed to be elongated in the second direction and the first portion 311 and the second portion 313 of the base portion 310 are disposed to be adjacent in the second direction, the neighboring substrate 122 ) Spaced apart from each other must be set to be greater than or equal to the length of the base portion 310 in the second direction, etc. In a preferred embodiment of the present invention, by setting the extension direction of the base portion 310 and the extension direction of the substrate 122 to be the same, the design freedom can be improved.

Through the above description, those skilled in the art will be able to variously change and modify without departing from the spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be determined by the claims.

Claims (13)

Display panel;
A diffusion plate positioned behind the display panel;
A frame positioned behind the diffusion plate; And
Including a supporter fastened to the frame,
The supporter,
A base portion located at the rear of the frame;
A support portion extending from the base portion toward the diffusion plate and supporting the diffusion plate from the rear; And
A fastening portion extending from the base portion toward the diffusion plate and fixed to the frame,
The frame,
An open hole into which the support is inserted, and a fastening hole into which the fastening part is inserted,
The support part,
It is located spaced apart from the base by a predetermined distance in the extension direction of the support, and includes a stopper protruding in a direction crossing the extension direction,
The preset interval is,
It is set larger than the thickness of the frame,
The base portion,
The display device is defined as being divided into a first portion in which the support portion is located and a second portion in which the fastening portion is located.
delete delete The method of claim 1,
The stopper,
The display device, which protrudes from the outer periphery of the support and extends long to surround the entire circumference of the support.
The method of claim 1,
The stopper,
It includes a plurality of segments protruding from the outer periphery of the support,
The neighboring segments are,
A display device that is spaced apart by a preset interval.
The method of claim 1,
The distance from the center of the support to the outer periphery of the stopper,
A display device that is set larger than a radius of the open hole.
The method of claim 1,
Substrates positioned between the diffusion plate and the frame, each extending along a first direction, and arranged along a second direction crossing the first direction; And
Further comprising an optical module mounted on the substrates,
The supporter,
It is located between adjacent substrates in the second direction,
The support part and the fastening part,
A display device arranged along the first direction.
The method of claim 1,
The second part,
A display device, which is positioned on one side and the other side of the first portion, respectively.
The method of claim 1,
The base portion,
In response to the movement of the support, the display device is provided so as to be deformed and restored.
The method of claim 1,
The support part,
A display device having a shape in which a cross-sectional area gradually decreases from a lower end to an upper end adjacent to the base portion.
The method of claim 1,
The upper end of the support,
A display device having a rounded shape.
The method of claim 1,
The support part,
A display device comprising a buffer member positioned on a friction surface with the diffusion plate.
The method of claim 1,
The supporter,
A display device made of an elastic material.

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