KR20190116836A - Display device - Google Patents

Abstract

Disclosed is a display device. The display device of the present invention comprises: a display panel; an optical sheet located at a rear side of the display panel; a frame located at a rear side of the optical sheet; a light source mounted on a front surface of the frame; and a reflection sheet having a flat plate part located on the frame and facing the optical sheet, an inclined part obliquely extended from the flat plate part and gradually approaching the optical sheet while being extended, and a sidewall extending forward from the inclined part. Therefore, the present invention is capable of reducing the constraints of structural design.

Description

Display device {DISPLAY DEVICE}

The present invention relates to a display device.

As the information society develops, the demand for display devices is increasing in various forms, and in recent years, liquid crystal display devices (LCDs), plasma display panels (PDPs), electroluminescent displays (ELDs), and vacuum fluorescents (VFDs) have been developed. Various display devices such as Display have been studied and used.

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

Recently, studies have been actively conducted to improve the assembly structure of the display device while securing the rigidity of the display device.

It is an object of the present invention to solve the above and other problems. Yet another object may be to provide a display device that can improve the constraints of structural design.

Another object may be to provide a display device with an even light distribution.

Still another object may be to provide a display device comprising a reflective sheet having sidewalls.

Still another object may be to provide a display device comprising a frame having sidewalls.

Still another object may be to provide a display device comprising a pin for seating a reflective sheet on a frame.

According to an aspect of the present invention to achieve the above or another object, a display panel; An optical sheet positioned behind the display panel; A frame located at the rear of the optical sheet; A light source mounted to the front of the frame; A reflective sheet positioned on the frame and having a flat plate portion facing the optical sheet, an inclined portion gradually approaching the optical sheet as it extends obliquely from the flat plate portion, and a side wall extending forward from the inclined portion; It can provide a display device comprising a.

According to another aspect of the present invention, the frame includes: a second flat plate portion facing the flat plate portion of the reflective sheet which is a first flat plate portion; A second inclined portion facing the inclined portion of the reflective sheet which is a first inclined portion; In addition, the first sidewall may include a second sidewall facing the sidewall of the reflective sheet.

According to another aspect of the present invention, the frame includes: a coupling portion extending from the second sidewall, facing the optical sheet, and adjacent to the optical sheet, the reflective sheet comprising: the first It may include a fixing portion extending from the side wall, facing the optical sheet, and fixed between the coupling portion and the optical sheet of the frame.

According to another aspect of the present invention, the flat plate may include a hole, and the light source may be located in the hole.

According to another aspect of the present invention, it may include a pin penetrating the flat plate and the frame, and fixing the flat plate to the frame.

According to another aspect of the present invention, the pin comprises: a hook on the rear of the frame; It includes a support extending forward from the hook, the height of the support may be higher than the height of the light source.

According to another aspect of the present invention, the flat plate portion includes: a first side and a second side connected to the first side, the inclined portion: a third inclined portion extending from the first side; And a fourth inclined portion extending from the second side, wherein the sidewall includes: a third sidewall extending from the third inclined portion; And a fourth sidewall extending from the fourth inclined portion.

According to another aspect of the present invention, the height of the third side wall and the height of the fourth side wall may be different from each other.

The effects of the display device according to the present invention will be described below.

According to at least one of the embodiments of the present invention, the light distribution of the display device can be even.

According to at least one of the embodiments of the present invention, the reflective sheet may have sidewalls, thereby making it possible to evenly distribute light provided to the optical sheet.

According to at least one of the embodiments of the present invention, the frame may support the reflective sheet by having sidewalls.

According to at least one of the embodiments of the present invention, the pin may seat the reflective sheet on the frame.

According to at least one of the embodiments of the present invention, the front cover may be fixed to the frame using a fixer.

According to at least one of the embodiments of the present disclosure, the efficiency of the assembling process of the display device may be improved.

Further scope of the applicability of the present invention will become apparent from the following detailed description. However, various changes and modifications within the spirit and scope of the present invention can be clearly understood by those skilled in the art, and therefore, specific embodiments, such as the detailed description and the preferred embodiments of the present invention, should be understood as given by way of example only.

1 to 7 show examples of display devices related to the present invention.
8 to 18 are diagrams illustrating examples of a configuration of a display device according to an exemplary embodiment.

In the following description, the same or similar components are given the same reference numerals, and redundant descriptions for the same reference numerals may be omitted.

In the following description, although an embodiment is described with reference to specific drawings, reference numerals not shown in the specific drawings may be referred to, if necessary, and reference numerals not shown in the specific drawings may be referred to in the remaining drawings. Use only if indicated.

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 to distinguish the components from other components, and the nature, order, order, etc. of the components are not limited by the terms.

The suffixes "module" and "unit" for components used in the following description are given or used in consideration of ease of specification, and do not have distinct meanings or roles from each other.

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

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

 In the following description, the accompanying drawings are intended to facilitate understanding of the embodiments disclosed herein, but are not limited to the technical spirit disclosed herein by the accompanying drawings, included in the spirit and scope of the present invention It is to be understood that all modifications, equivalents, and substitutes are included.

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

Hereinafter, although a liquid crystal panel (Liquid Crystal Display Device, LCD) is mentioned and demonstrated about an example display panel, the display panel applicable to this invention is not limited to a liquid crystal panel.

Referring to FIG. 1, below, a 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 first long side LS1. The first short side SS1 adjacent to the second long side LS2 and the second short side SS2 opposite to the first short side SS1 may be included.

Here, the first short side area SS1 is called a first side area, and the second short side area SS2 is called a second side area opposite to the first side area. The first long side area LS1 is called 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 LS1 It is possible to call LS2) a 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 the third side region. .

In addition, the lengths of the first and second long sides LS1 and LS2 are longer than the lengths of the first and second short sides SS1 and SS2 for convenience of description, but the first and second long sides LS1, It may also be possible that the length of LS2) is approximately equal to the length of the first and second short sides SS1 and SS2.

In addition, hereinafter, the first direction DR1 is a direction parallel to the long sides LS1 and LS2 of the display panel 100, and the second direction DR2 is a direction of the display panel 100. It may be in a direction parallel to the short sides SS1 and 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 the image may be referred to as a forward direction or front side or front surface. When the display device displays an image, the side where the image cannot be observed may be referred to as a rear direction or a rear side or rear surface. When looking at the display from the front or the front, the first long side LS1 may be referred to as an upper side or an upper surface. Similarly, the second long side LS2 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. In addition, 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, the 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 the second corner C2. ), The point where the second short side SS2 and the second long side LS2 meet is the third corner C3, and the point where the second long side LS2 and the first short side SS1 meet the fourth corner C4. Can be

Here, the direction from the first short side SS1 to the second short side SS1 or the direction from the second short side SS2 toward the first short side SS1 may be referred to as a 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 an up-down 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 with the display panel 110, the back cover 150 and / or other structures adjacent thereto may include protrusions, sliding parts, and coupling parts.

Referring to FIG. 3, 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 divided into a front cover positioned at the front side of the display panel 110 and a side cover positioned at the side of the display panel 110. The front cover and the side cover may be configured separately. Either one of the front cover and the side cover may be omitted.

The display panel 110 may be provided in front of the display device 100 and display an image. The display panel 110 may display an image by outputting RGB (red, green or blue) for each pixel at a timing. The display panel 110 may 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 110 may include a front substrate and a rear substrate facing each other with the liquid crystal layer interposed therebetween.

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

The back substrate may include switching elements. The rear substrate may 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 liquid crystal molecules may change an arrangement corresponding to the 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 combined with the frame 130 in front of the frame 130.

The backlight unit 120 may be driven in a full driving manner or a partial driving scheme 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 the light of the 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, and the like.

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

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

The frame 130 may serve to support the 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 aluminum alloy.

The back cover 150 may be located at the rear or the 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 molded resin.

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 light assembly 123 may be located between the optical sheet 125 and the frame 130. The light assembly 123 may include a diffuser plate 129.

The optical sheet 125 or / and diffuser plate 129 may be coupled to the frame 130 at the edge of the frame 130. The optical sheet 125 or / and diffuser plate 129 may be seated directly at 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 diffuser plate 129 may be located 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, a portion 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 be shaped to surround the first and second guide panels 117 and 113. The first or second guide panels 117 and 113 may be referred to as holders or support members.

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 diffuser plate 129. The light assembly 123 may not include some of these configurations.

The substrate 122 may be configured in the form of a plurality of straps extending in a first direction and spaced apart at predetermined intervals in a second direction perpendicular 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 composed 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.

The optical module 124 may be disposed on the substrate 122 at predetermined intervals in the first direction. The diameter of the optical module 124 may be larger than the width of the substrate 122. That is, it may be larger than the length of the second direction of the substrate 122.

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

The optical module 124 may be configured as a colored LED or a white LED emitting at least one of colors such as red, blue, green, and the like. 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, the reflective sheet 126 may be located. The reflective sheet 126 may be located on an area of the substrate 122 except for an area in which the optical module 124 is formed. The reflective sheet 126 may include 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 diffuser plate 129 again.

The reflective sheet 126 may include at least one of a metal and a metal oxide that are reflective materials. For example, the reflective sheet 126 may include a metal and / or metal oxide having a high reflectance such as at least one of aluminum (Al), silver (Ag), gold (Au), and titanium dioxide (TiO 2). Can be.

The supporter 200 may be coupled to the reflective sheet 126. The supporter 200 may have a shape protruding forward from the reflective sheet 126. For example, the supporter 200 may be positioned between the reflective sheet 126 and the diffusion plate 129. Alternatively, the supporter 200 may be positioned between the reflective sheet 126 and the optical sheet 125. By the supporter 200, the distance between the reflective sheet 126 and the diffuser plate 129 may be maintained or the 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 the light emitted from the optical module 124.

The diffuser plate 129 may diffuse the light emitted from the optical module 124. The optical module 124 may be arranged in plural as a point light source. Light provided forward from the plurality of optical modules 124 may have different luminance depending on the distance from the optical module 124. The diffusion plate 129 may even the luminance profile according to the arrangement of the plurality of optical modules 124.

The optical sheet 125 may be located in front of the diffuser 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 surface of the display panel 110 (see FIG. 1).

Optical sheet 125 may include at least one sheet. In detail, the optical sheet 125 may include one or more prism sheets and / or one or more diffusion sheets. The plurality of sheets included in the optical sheet 125 may be in an adhesive and / or close state.

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 prism sheet can 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 collect light from the diffusion sheet and provide light to the display panel 110.

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

The coupling part 125d may be formed at the long side 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, the position and / or number of the coupling part 125d on the first long side and the coupling part 125d on the second long side may be different.

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 spaced apart from each other. The plurality of optical modules 124 may provide light (or light rays) forward.

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 located in front of the optical module 124. The diffusion plate 129 may be located in front of the reflective sheet 126. The diffusion plate 129 may be spaced apart from the optical module 124. The diffusion plate 129 may 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 include a stable gas. For example, the air layer AL may include a gas that is the same as or similar to the composition of the air. For example, the air layer AL may include nitrogen or oxygen.

The optical sheet 125 may be disposed in front of the diffuser 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 located in front of the first optical sheet 125a. The third optical sheet 125c may be located in front 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 located 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 a 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 part HH and / or the vertical coupling part VH may have a shape of an opening formed along the side of the reflective sheet 126.

The horizontal coupling part HH may be an opening formed along two opposite sides of the reflective sheet 126. The horizontal coupling part 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 the short side of the frame 130.

The horizontal protrusion 130H or the vertical protrusion 130V may protrude forward. The horizontal protrusion 130H or the vertical protrusion 130V can 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 include 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 an edge of the reflective sheet 126. The guide panel GP may be formed by a combination of elongated bars.

The guide panel GP may include plastic. The guide panel GP may be formed by being injected. The guide panel GP may include a 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 the horizontal direction and / or the vertical direction. The substrate 122 may be electrically connected to the signal line 121. The substrate 122 may receive a power or electrical signal from the signal line 121.

The lens hole 125 formed in the reflective sheet 126 may be formed to correspond 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 located 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 the supporter hole 205. The supporter 200 may be coupled to the supporter hole 205. The supporter 200 may support the diffusion plate 129 (see FIG. 5) and / or the optical sheet 125 (see FIG. 5) positioned in front of the reflective sheet 126. By the supporter 200, the reflective sheet 126 may be spaced apart from the diffuser 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.

Referring to FIG. 8, the substrate 122 may be installed in the frame 300 ′. The substrate 122 may be installed on the first part 301 ′. The first part 301 ′ may face the display panel 110 and the optical sheet 125. The second part 302 ′ may extend forward around the first part 301 ′. The height at which the second part 302 ′ extends may be similar to the thickness of the substrate 122. The third part 303 ′ may extend from the second part 302 ′. The third part 303 'may be referred to as an inclined portion 303'. The third part 303 ′ may be inclined with respect to the first part 301 ′ or the second part 302 ′. The fifth part 305 ′ may extend in the horizontal direction in the third part 303 ′. The sixth part 306 ′ may extend rearwardly from the fifth part 305 ′. The reflective sheet 310 ′ may be positioned on the frame 300 ′. The first part 311 ′ may face the first part 311 ′ of the frame 300 ′. The first part 311 ′ may face the display panel 110 or the optical sheet 125. The substrate 122 may be positioned between the first parts 301 ′ and 311 ′. The second part 312 ′ may extend from the first part 311 ′. The second part 312 ′ may extend along the third part 303 ′. The second part 312 ′ may be inclined with respect to the first part 311 ′. The fourth part 314 ′ may extend in the horizontal direction at the second part 312 ′. The fourth part 314 ′ may extend along the fifth part 305 ′. The fourth part 314 ′ may be fixed between the fifth part 305 ′ and the optical sheet 125. Light emitted from the light source 124 may be incident to the reflective sheet 310 ′ or the optical sheet 125. Light incident on the reflective sheet 310 ′ may be reflected by the reflective sheet 310 ′. The reflective sheet 310 ′ may reflect incident light toward the optical sheet 125. In the area A ′, the amount of light incident directly from the light source 124 may be small. As the fourth part 312 ′ approaches, the space between the second part 312 ′ and the optical sheet 125 may be very small, and the amount of light reflected to the A ′ region may be very small. Therefore, a problem may occur that the brightness of the A 'region is lowered.

Referring to FIG. 9, the substrate 122 may be installed in the frame 300 ″. The substrate 122 may be installed on the first part 301 ″. The first part 301 ″ may face the display panel 110 or the optical sheet 125. The second part 302 ″ may extend forward around the first part 301 ″. The height at which the second part 302 ″ extends may be similar to the thickness of the substrate 122. The third part 303 ″ may extend from the second part 302 ″. The fourth part 304 ″ may extend forward in the third part 303 ″. The fifth part 305 ″ may extend in the horizontal direction in the fourth part 304 ″. The sixth part 306 ″ may extend rearwardly in the fifth part 305 ″. The reflective sheet 310 ″ may be located on the frame 300 ″. The first part 311 ″ may face the first part 311 ″ and the third part 313 ″ of the frame 300 ′. The first part 311 ″ may face the display panel 110 or the optical sheet 125. The substrate 122 may be located between the first parts 301 ″ and 311 ″. The third part 313 ′ may extend forward from the first part 311 ′. The fourth part 314 ″ may extend in the horizontal direction in the third part 313 ″. The fourth part 314 ″ may be fixed between the fifth part 305 ″ and the optical sheet 125. Light emitted from the light source 124 may be incident to the reflective sheet 310 ″ or the optical sheet 125. Light incident on the reflective sheet 310 ″ may be reflected by the reflective sheet 310 ″. The reflective sheet 310 ″ may reflect incident light toward the optical sheet 125. The area A ″ may have a small amount of light incident directly from the light source 124. As the fourth part 314 ″ approaches, the space between the third part 313 ′ and the optical sheet 125 may be very small, and the amount of light reflected to the A ″ region may be very small. Therefore, a problem may occur that the brightness of the A '' region is lowered.

10 and 11, the substrate 122 may be installed in the frame 300. The substrate 122 may be formed in plural. The light source 124 may be installed on the substrate 122. The light source 124 may be formed in plural. The frame 300 may include at least one of the first part 301 to the sixth part 306. The substrate 122 may be installed on the first part 301. The first part 301 may be referred to as a flat plate 301, a flat plate portion 301, a horizontal plate 301, or a horizontal portion 301. The first part 301 may face the display panel 110 or the optical sheet 125. The second part 302 may extend forwardly around the first part 301. The height at which the second part 302 extends may be similar to the thickness of the substrate 122. The third part 303 may extend from the second part 302. The third part 303 may be referred to as an inclined portion 303. The third part 303 may be inclined with respect to the first part 301 or the second part 302. The fourth part 304 may extend forward from the third part 303. The fourth part 304 may be referred to as a wall 304 or a partition 304. The fifth part 305 may extend in the horizontal direction in the fourth part 304. The sixth part 306 may extend rearwardly from the fifth part 305.

12 and 13, the reflective sheet 310 may be located on the frame 300. The reflective sheet 310 may include at least one of the first part 311 to the fourth part 314. The first part 311 may face the first part 311 of the frame 300. The first part 311 may be referred to as a flat plate 311, a flat plate portion 311, a horizontal plate 311, or a horizontal portion 311. The first part 311 may face the display panel 110 or the optical sheet 125. The substrate 122 may be located between the first parts 301 and 311. The first part 311 may include a hole 315. The hole 315 may be formed in plural. The light source 124 may be located in the hole 315. The second part 312 may extend from the first part 311. The second part 312 may be referred to as an inclined portion 312. The second part 312 may extend along the third part 303. The second part 312 may be inclined with respect to the first part 311. The third part 313 may extend forward from the second part 312. The third part 313 may be referred to as a wall 313 or a partition 313. The third part 313 may extend along the fourth part 304. The fourth part 314 may extend in the horizontal direction in the third part 313. The fourth part 314 may extend along the fifth part 305. The fourth part 314 may be fixed between the fifth part 305 and the optical sheet 125.

Referring to FIG. 14, light emitted from the light source 124 may be incident to the reflective sheet 310 or the optical sheet 125. Light incident on the reflective sheet 310 may be reflected by the reflective sheet 310. The reflective sheet 310 may reflect the incident light toward the optical sheet 125. A region may have a small amount of light incident directly from the light source 124. The second part 312 or the third part 313 may increase the amount of light incident on the A region by reflecting light. Due to the second part 312 or the third part 313, the light distribution incident on the optical sheet 125 may be uniform. For example, the distance between the first part 311 and the optical sheet 125 may be 10 mm, and the length of the third part 313 may be 3 to 4 mm.

Referring to FIG. 15, the reflective sheet 310 may be spaced apart from the frame 300. The first part 311 may be spaced apart from the substrate 122 or the first part 301 by a predetermined distance d1. The second parts 312 and 302 may be spaced apart by a predetermined distance d2. The third parts 313 and 303 may be spaced apart by a predetermined distance d3. When the reflective sheet 310 is spaced apart from the frame 300, the reflective effect of the reflective sheet 310 may be reduced, and the amount of light incident on the optical sheet 125 may be reduced.

16 and 17, the pin 320 may be fastened to the substrate 122, the frame 300, or the reflective sheet 310. The pin 320 may be fastened to the first parts 311 and 301. The pin 320 may include a hook 322 and a support 321. The support part 321 may support the optical sheet 125 when the optical sheet 125 is bent or pushed backward. The height of the support 321 may be higher than the height of the light source 124. The support part 321 may prevent the light source 124 and the optical sheet 125 from contacting each other. The support part 321 may prevent the light source 124 or the optical sheet 125 from being damaged. The hook 322 may be fastened to the first parts 301 and 311. The first parts 301 and 311 or the substrate 122 may have a hole into which the hook 321 is inserted. As the hook 321 is caught by the frame 300, the pin 320 may be fixed. The pin 320 may contact the first parts 301 and 311. The pin 320 may adhere the first part 311 to the substrate 122. The pin 320 may closely contact the reflective sheet 310 and the frame 300. The pin 320 may be located adjacent to the boundary between the first part 311 and the second part 312. The pin 320 may be formed in plural.

Referring to FIG. 18, the third parts 313a and 313b may have different heights da and db. Depending on the length of the long side and the short side of the display panel 110, the length ratio of the long side and the short side of the reflective sheet 310a may vary. Accordingly, the heights da and db of the third parts 313a and 313b may be different from each other so that the light distribution incident on the optical sheet 125 is uniform. By changing the heights of the third parts 313a and 313b, the heights or lengths of the second parts 312a and 312b may also vary. Although the third parts 313a and 313b have different heights da and db, the heights of the third parts 303 of the frame 300 may be the same.

Among the embodiments of the present invention described above, the optical sheet 125 is not necessarily limited to the optical sheet. The optical sheet 125 may be referred to as any one of a diffusion sheet, a prism sheet, a composite sheet, a light guide plate, or a backlight unit.

Some or other embodiments of the invention described above are not exclusive or distinct from one another. Certain embodiments or other embodiments of the invention described above may be combined or combined in each configuration or function.

The foregoing detailed description should not be construed as limiting in all respects, but should be considered as illustrative. The scope of the invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the invention are included in the scope of the invention.

Claims (8)

Display panel;
An optical sheet positioned behind the display panel;
A frame located at the rear of the optical sheet;
A light source mounted to the front of the frame;
A reflective sheet disposed on the frame and having a flat plate portion facing the optical sheet, an inclined portion gradually approaching the optical sheet as it extends obliquely from the flat plate portion, and a side wall extending forward from the inclined portion; Display device comprising a. The method according to claim 1,
The frame is:
A second flat plate portion facing the flat plate portion of the reflective sheet which is a first flat plate portion;
A second inclined portion facing the inclined portion of the reflective sheet which is a first inclined portion; And,
And a second sidewall facing the sidewall of the reflective sheet, the first sidewall. The method according to claim 2,
The frame is:
A coupling portion extending from the second sidewall, facing the optical sheet, and adjacent to the optical sheet,
The reflective sheet is:
And a fixing portion extending from the first sidewall and facing the optical sheet, the fixing portion being fixed between the coupling portion of the frame and the optical sheet. The method according to claim 1,
The plate portion has a hole,
The light source is
A display device located in the hall. The method according to claim 1,
And a pin penetrating the flat plate and the frame and fixing the flat plate to the frame. The method according to claim 5,
The pin is:
A hook on the rear of the frame;
A support extending forward from the hook,
The height of the support,
And a display device higher than the height of the light source. The method according to claim 1,
The plate portion:
A first side and a second side connected to the first side,
The inclined portion:
A third inclined portion extending from the first side; And,
A fourth inclined portion extending from the second side,
The side wall is:
A third sidewall extending from the third inclined portion; And,
And a fourth sidewall extending from the fourth inclined portion. The method according to claim 7,
And a height of the third sidewall and a height of the fourth sidewall are different.

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