KR20220075846A - Display device - Google Patents

Abstract

According to an embodiment of the present invention, a display device in which the luminance of an edge region of a display panel can be improved may be provided. A display device according to an exemplary embodiment includes a light source assembly including a guide frame supporting an edge of an optical plate disposed under a display panel, and a plurality of light emitting chips disposed under the optical plate and accommodated in a bottom cover. The guide frame includes a lower frame through which light emitted from the light emitting chips is reflected, and an upper frame disposed on an upper end of the lower frame and through which a portion of the light emitted from the light emitting chips is transmitted.

Description

display device {DISPLAY DEVICE}

The present invention relates to a display device, and more particularly, to a display device in which the luminance of an edge region of a display panel is improved.

Recently, along with the development of information technology and mobile communication technology, the development of a display device capable of visually displaying information has been made. It is classified as a non-light-emitting display that can do this.

A liquid crystal display device (hereinafter referred to as an LCD) may be exemplified as a non-emission type display.

Here, since the LCD is an element that does not have a self-luminous element, a separate light source is required. Accordingly, a backlight unit having a light source on the rear surface is provided to irradiate light toward the front of the LCD, and only through this, an image that can be identified is realized.

The backlight unit uses a Cold Cathode Fluorescent Lamp (CCFL), an External Electrode Fluorescent Lamp, and a Light Emitting Diode (LED, hereinafter referred to as LED) as a light source.

Among them, in particular, the LED has a tendency to be widely used as a light source for display because it has features such as small size, low power consumption, and high reliability.

In addition, the backlight unit is divided into a side type and a direct type according to the position of the light source. The side type has a structure in which one or a pair of light sources are disposed on one side of the light guide plate, or two Alternatively, two pairs of light sources have a structure arranged on both sides of the light guide plate, and the direct type has a structure in which several lamps are arranged under the optical sheet.

In recent years, in a state where research on a large-area liquid crystal display device has been actively conducted in response to consumer demand, a direct type is more suitable for a large-area liquid crystal display device than a side type.

On the other hand, research to realize a light, thin, and narrow bezel along with a larger area for such a direct type liquid crystal display is being actively conducted.

The direct type liquid crystal display has a problem in that the luminance of the edge region of the display panel is lowered in the process of realizing a light, thin, and narrow bezel. Accordingly, the inventors of the present specification have invented a display device capable of improving the luminance of an edge region of a display panel while implementing a light weight, thin and narrow bezel.

It is an object of the present invention to provide a display device in which a luminance of an edge region of a display panel can be improved while realizing a narrow bezel.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned may be understood by the following description, and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the appended claims.

According to an embodiment of the present invention for solving the above technical problem, a display device having improved luminance of an edge region of a display panel may be provided.

A display device according to an exemplary embodiment includes a light source assembly including a guide frame supporting an edge of an optical plate disposed under a display panel, and a plurality of light emitting chips disposed under the optical plate and accommodated in a bottom cover. The guide frame includes a lower frame through which light emitted from the light emitting chips is reflected, and an upper frame disposed on an upper end of the lower frame and through which light emitted from the light emitting chips is partially transmitted.

A display device according to an exemplary embodiment includes an optical plate disposed under a display panel and attached to the display panel through a first adhesive member, and an edge of the optical plate disposed under the optical plate and via a second adhesive member and a light source assembly including a guide frame attached thereto, and a plurality of light emitting chips disposed under the optical plate and accommodated in a bottom cover, wherein the guide frame includes a lower frame through which light emitted from the light emitting chips is reflected; and an upper frame having a transmittance different from that of the lower frame, wherein the lower frame and the upper frame may form a single inclined surface.

According to an embodiment of the present invention, since the guide frame supporting the edge of the optical plate includes an upper frame through which light emitted from light sources under the optical plate is partially transmitted, the luminance of the edge region of the display panel may be improved. have.

In addition, the lower frame of the guide frame includes an inclined portion providing a reflective surface inclined with respect to the bottom surface of the bottom cover, the angle formed by the inclined portion with the bottom surface of the bottom cover changes, and is convex toward the inner space of the bottom cover Thus, the luminance uniformity of the display panel may be improved.

Effects of the present specification are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is an exploded perspective view schematically illustrating a display device according to an exemplary embodiment.
2 is a cross-sectional view schematically illustrating a display device according to an exemplary embodiment.
3 is a cross-sectional view showing only the guide frame according to an embodiment of the present invention.
4 is an enlarged cross-sectional view of area 'A' of FIG. 2 .
5 is a graph illustrating a luminance ratio of an edge region of a display device according to an exemplary embodiment.
6 is a graph illustrating a change in a luminance ratio of an outermost pixel of a display panel according to light transmittance of an upper frame.
7 is a cross-sectional view schematically illustrating an optical path in a display device according to an exemplary embodiment.
8 is a cross-sectional view schematically illustrating an optical path in a display device according to a comparative example.

The above-described objects, features and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

In the following, that an arbitrary component is disposed on the "upper (or lower)" of a component or "upper (or below)" of a component means that any component is disposed in contact with the upper surface (or lower surface) of the component. Furthermore, it may mean that other components may be interposed between the component and any component disposed on (or under) the component.

In addition, when it is described that a component is “connected”, “coupled” or “connected” to another component, the components may be directly connected or connected to each other, but other components are “interposed” between each component. It should be understood that “or, each component may be “connected,” “coupled,” or “connected,” through another component.

Hereinafter, a display device capable of improving the luminance of an edge region of a display panel according to embodiments of the present invention will be described in detail.

A display device according to an exemplary embodiment includes a display panel, an optical plate disposed under the display panel, a guide frame supporting an edge of the optical plate, a bottom cover to which the guide frame is coupled, and a bottom cover disposed under the optical plate. and a light source assembly including a plurality of light emitting chips disposed and accommodated in the bottom cover, wherein the guide frame is disposed on a lower frame to which light emitted from the light emitting chips is reflected and an upper end of the lower frame, the light emitting chip and an upper frame through which light emitted from the beams is partially transmitted.

For example, the upper frame may have a visible light transmittance of 5 to 13%.

For example, the upper frame may include a transparent body having an inner surface that is narrowed toward an upper end and inclined with respect to a lower surface of the bottom cover, and a white paint applied on at least an inner surface of the transparent body.

For example, the upper end of the transparent body may include a first upper surface and a second upper surface inclined with respect to the first upper surface.

For example, a width of the second upper surface may be greater than a width of the first upper surface.

For example, an angle between the imaginary surface extending from the first upper surface and the second upper surface may be 13.5 degrees. In other words, the angle between the first upper surface and the second upper surface may be 166.5 degrees.

For example, the lower frame may include a reflective body having an inclined portion providing a reflective surface inclined with respect to the bottom surface of the bottom cover and a coupling portion extending downwardly from the inclined portion and coupled to the bottom cover. .

For example, the lower frame may further include a white paint applied on the inclined portion of the reflective body.

For example, the inclined portion may change an angle formed with the bottom surface of the bottom cover and be convex toward the inner space of the bottom cover. An upper region of the inclined portion may form an obtuse angle with a bottom surface of the bottom cover, and a lower region of the inclined portion may form an acute angle with a bottom surface of the bottom cover.

For example, the inner surface of the transparent body and the reflective surface of the reflective body may be continuously connected to form a single inclined surface.

For example, the display panel may be attached to the optical plate through a first adhesive member disposed along an edge of the optical plate, and the optical plate may be attached to the optical plate via a second adhesive member disposed on the upper frame of the guide frame. It may be fixed and supported by the guide frame.

For example, the optical plate may include a base substrate made of a transparent glass material and diffusion layers disposed on upper and lower surfaces of the base substrate.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view schematically illustrating a display device according to an exemplary embodiment. 2 is a cross-sectional view schematically illustrating a display device according to an exemplary embodiment.

1 and 2 , a display device 100 according to an exemplary embodiment includes a display panel 110 , a backlight unit 120 , a guide frame 200 , and a bottom cover 150 .

Let's take a closer look at each of these.

First, the display panel 110 is a portion for displaying an image, and includes first and second substrates 112 and 114 bonded to each other to face each other with a liquid crystal layer (not shown) interposed therebetween.

In this case, when the display panel 110 is an active matrix type, a plurality of gate lines are formed on the inner surface of the first substrate 112 called a lower substrate or an array substrate, although not clearly shown in the drawing A plurality of data lines intersect to define pixels, and a thin film transistor (TFT) is provided in each crossing area to be connected to a transparent pixel electrode formed in each pixel in a one-to-one correspondence.

In addition, on the inner surface of the second substrate 114 called an upper substrate or a color filter substrate, red, green, and blue color filters as an example corresponding to each pixel and each of them are separated and a first substrate 112 is formed. ), a black matrix for covering non-display elements such as gate lines, data lines, and thin film transistors is provided. In addition, a transparent common electrode covering them is provided.

In addition, an alignment layer (not shown) for determining an initial molecular arrangement direction of the liquid crystal is interposed at each of the boundaries between the first and second substrates 112 and 114 of the display panel 110 and the liquid crystal layer (not shown), and the liquid crystal A seal pattern is formed along the edges of the first and second substrates 112 and 114 to prevent leakage of the layer (not shown).

In this case, upper and lower polarizing plates 119a and 119b (refer to FIG. 2 ) are attached to the outer surfaces of the first and second substrates 112 and 114 , respectively.

And a printed circuit board (Printed Circuit Board) 117 is connected to one side of the display panel 110 via a connecting member 116 such as a flexible printed circuit board, at this time the connecting member 116 of One end is attached to and connected to the side surface of the display panel 110 , and the other end of the connection member 116 is connected to the printed circuit board 117 .

A backlight unit 120 for supplying light is provided on a rear surface of the display panel 110 so that a difference in transmittance indicated by the display panel 110 is externally expressed.

The backlight unit 120 includes a light source assembly 128 positioned under the display panel 110 , a reflector 125 positioned on the light source assembly 128 , and a guide support 127 positioned on the reflector 125 . and an optical plate 300 spaced apart from the light source assembly 128 at a specific distance through the light source assembly 128 .

The light source assembly 128 is a light source of the backlight unit 120 , and is disposed at a specific interval between the plate-shaped PCB 128b and the PCB 128b seated inside the bottom surface 151 of the bottom cover 150 . It includes a plurality of light emitting chips (128a) mounted spaced apart.

In this case, the plurality of light emitting chips 128a may be formed of, for example, a blue LED device having excellent luminous efficiency and luminance and a yellow phosphor (eg, cerium-doped yttrium aluminum garnet (YAG:Ce)). The light emitting chip 128a emits white light toward the optical plate 300 .

And, the reflection plate 125 is configured with a plurality of through holes 125a through which the plurality of light emitting chips 128a can pass and covers the entire PCB 128b except for the plurality of light emitting chips 128a, The luminance of the light is improved by reflecting the light directed to the rear of the plurality of light emitting chips 128a toward the optical plate 300 .

The optical plate 300 for uniformity of luminance is positioned on the plurality of light emitting chips 128a exposed through the through-holes 125a of the reflector 125 . Here, the optical plate 300 is supported through the guide support 127 to prevent sagging.

In this case, the optical plate 300 has a base substrate 301 made of a transparent glass material, and lower and upper diffusion layers 310 and 320 are positioned on the lower and upper surfaces of the base substrate 301 .

The lower and upper diffusion layers 310 and 320 include light diffusion components such as beads or fibers, and refract and scatter light emitted from the light emitting chip 128a and incident to the optical plate 300 . light can be diffused.

At this time, the light diffusion component such as beads or fibers is included in the binder resin, and the binder resin has excellent light transmittance and easy viscosity control, for example polyethylene terephthalate (PET), polyethylene Naphthalate (polyethylene naphthalate), polymethyl methacrylate (polymethlymethacrylate: PMMA), polycarbonate (polycarbonate), polystyrene (polystyrene), polyolefin (polyolefine), cellulose acetate (celluloseacetate), or polyvinyl chloride (polyvinyl chloride), etc. can be done

In addition, instead of the upper diffusion layer 320 , a light collecting layer may be positioned on the upper surface of the base substrate 301 . The light collecting layer extends in a first direction (X direction) defined in the drawing, and includes a plurality of adjacent prism mountains along a second direction (Y direction) crossing the first direction (X direction). may include

Accordingly, the light emitted from the plurality of light emitting chips 128a of the light source assembly 128 is processed into uniform high-quality light in the process of passing through the optical plate 300 , and then is incident on the display panel 110 , Using this, the display panel 110 displays a high-brightness image to the outside.

The display panel 110 is attached to and fixed to the optical plate 300 through the first adhesive member 180a having adhesiveness located at the edge of the upper surface of the optical plate 300 . The lower edge of the display panel 110 is attached and fixed to the upper edge of the optical plate 300 through the first adhesive member 180a.

The guide frame 200 has a rectangular frame shape, supports the lower edge of the optical plate 300 , and maintains an optical gap G between the light source assembly 128 and the optical plate 300 .

The optical plate 300 is attached to and fixed to the guide frame 200 through the second adhesive member 180b having adhesiveness located at the upper end of the guide frame 200 . The lower edge of the optical plate 300 is attached and fixed to the upper end of the guide frame 200 through the second adhesive member 180b.

In this case, the second adhesive member 180b for attaching and fixing the optical plate 300 and the guide frame 200 to each other is the first adhesive member 180a for attaching and fixing the display panel 110 and the optical plate 300 to each other. ), so that the optical plate 300 and the guide frame 200 are more stably attached and fixed. Here, the first and second adhesive members 180a and 180b may be formed of elastic resin, but the present invention is not limited thereto, and a foam pad and an optical clear adhesive (OCA) are used. ) or double-sided tape, etc. may be provided.

The guide frame 200 may be divided into four frames each having a length corresponding to the four edges of the optical plate 300, and the four frames are coupled to each other by a coupling member such as an angle, for example. A rectangular frame shape can be achieved.

The guide frame 200 is coupled to a lower frame 220 on which light emitted from the plurality of light emitting chips 128a of the light source assembly 128 is reflected, and an upper end of the lower frame 220 , and includes the plurality of light emitting chips 128a. ) includes an upper frame 210 through which light emitted from the portion is transmitted. The upper end of the upper frame 210 may support the edge of the lower surface of the optical plate 300 , and the lower end of the lower frame 220 may contact the upper surface of the light source assembly 128 , specifically, the upper surface of the PCB 128b. Alternatively, the lower end of the lower frame 220 may contact the upper surface of the reflector 125 .

In this way, the upper frame 210 supporting the lower edge of the optical plate 300 transmits some of the light emitted from the plurality of light emitting chips 128a and reflects some of the light toward the edge of the optical plate 300 , The brightness of the edge region of the edge display panel 110 of the plate 300 may be improved. The upper frame 210 will be described in more detail with reference to FIG. 4 .

The bottom cover 150 , on which the display panel 110 and the backlight unit 120 are seated, which is the basis for assembling the display device 100 , includes a plate-shaped bottom surface 151 and the bottom surface 151 . It consists of sides 153 bent vertically at the edge. The bottom cover 150 is also referred to as a cover bottom or a lower cover.

The lower frame 220 of the guide frame 200 may be coupled to the side surface 153 of the bottom cover 150 by a coupling member such as a screw, for example.

Further, in order to realize a narrow bezel, the display device 100 according to an embodiment of the present invention does not include other structures such as a case top (also referred to as a top cover or an upper cover) surrounding the upper edge of the display panel 110 . Since the display panel 110 and the backlight unit 120 are fixed only through the guide frame 200 and the bottom cover 150 , the guide frame 200 supports the display panel 110 and the optical plate 300 more stably. It should be made of a metal material to support it. That is, since the guide frame 200 requires a predetermined strength to withstand the weight of the display panel 110 and the optical plate 300 in order to stably support the display panel 110 and the optical plate 300 , The guide frame 200 may be formed of a metal material, for example, may be formed of aluminum.

As described above, the guide frame 200 for fixing and supporting the optical plate 300 to which the display panel 110 is attached is assembled and combined with the bottom cover 150 for accommodating the light source assembly 128 , the reflector 125 , and the like. By doing so, the display device 100 according to an embodiment of the present invention can be completed as one module.

The display device 100 according to the embodiment of the present invention does not use a case top made of a metal material, and the display panel 110 is directly attached to the optical plate 300 through the first adhesive member 180a. and fixed, and by allowing the optical plate 300 to be directly attached and fixed to the guide frame 200 through the second adhesive member 180b, a lightweight, thin and narrow bezel can be implemented, and manufacturing costs can also be reduced. have.

Contrary to this, in an embodiment, the display panel 110 and the optical plate 300 are stacked on the guide frame 200 without the first and second adhesive members 180a and 180b, and the top edge of the display panel 110 is And the display panel 110 , the optical plate 300 , and the guide frame 200 may be fixed together by a transparent adhesive member surrounding the side surface, the side surface of the optical plate 300 , and the side surface of the guide frame 200 .

3 is a cross-sectional view showing only the guide frame according to an embodiment of the present invention. 4 is an enlarged cross-sectional view of area 'A' of FIG. 2 .

The upper frame 210 of the guide frame 200 has a transparent body 210a and a transparent body including an inner surface P4 inclined with respect to the bottom surface 151 of the bottom cover 150 and narrowing toward the upper end. The white paint 210b applied on at least the inner surface P4 of the 210a may be included. The transparent body 210a may be formed of a polymer material having excellent light transmittance, for example, polyethylene terephthalate (PET), polyethylene naphthalate, polymethyl methacrylate (PMMA), or polycarbonate (polycarbonate). ), polystyrene, polyolefine, cellulose acetate, or polyvinyl chloride, or the like. The white paint 210b is for adjusting the light transmittance of the transparent body 210a, and the white paint 210b may be applied to at least a part of the transparent body 210a by a method such as spray coating. The white paint 210b may scatter and diffuse light to be more uniformly transmitted to the optical plate 300 . In addition, the upper end of the transparent body 210a may include a first upper surface P2 and a second upper surface P3 inclined with respect to the first upper surface P2. The white paint 210b may also be applied to the first upper surface P2 and the second upper surface P3 of the transparent body 210a. The first upper surface P2 may be a plane parallel to the lower surface of the optical plate 300 . An angle between the imaginary surface extending from the first upper surface P2 and the second upper surface P3 may be 13.5 degrees. In other words, the angle between the first upper surface P2 and the second upper surface P3 may be 166.5 degrees. A width of the second upper surface P3 may be greater than a width of the first upper surface P2 . For example, the width of the first upper surface P2 may be approximately 0.2 mm, and the width of the second upper surface P3 may be approximately 0.5 mm. The width of the first upper surface P2 corresponds to the distance between the boundary between the outer surface P1 and the first upper surface P2 and the boundary between the second upper surface P3 and the first upper surface P2, The width of the second upper surface P3 may correspond to a distance between the boundary between the inner surface P4 and the second upper surface P3 and the boundary between the second upper surface P3 and the first upper surface P2. have. In this way, by forming the upper end of the transparent body 210a, the optical plate 300 can be stably seated, and at the same time, the light emitted from the light emitting chip 128a of the light source assembly 128 is emitted from the edge of the optical plate 300 . to reach the area.

In addition, the transparent body 210a may include an inner surface P4 and an outer surface P1 forming an acute angle. Contrary to the drawings, the white paint 210b may also be applied to the outer surface P1 of the transparent body 210a.

The lower frame 220 extends downwardly from the inclined portion 221 providing a reflective surface inclined with respect to the bottom surface 151 of the bottom cover 150 and the inclined portion 221 and is coupled to the bottom cover 150 . It may include a reflective body (220a) having a coupling portion (225) that is. The lower frame 220 may further include a white paint 220b applied on the inclined portion 221 of the reflective body 220a.

In addition, the inner surface P4 of the transparent body 210a and the reflective surface P5 of the reflective body 220a may be continuously connected to form a single inclined surface. The transparent body 210a and the reflective body 220a may be formed by a heterogeneous injection process. The shape of the reflective body 220a may be more complicated than illustrated so that the transparent body 210a may be firmly coupled to the reflective body 220a. The white paint 210b applied on the transparent body 210a and the white paint 220b applied on the reflective body 220a may be simultaneously formed by one application process (eg, spray coating).

The angle formed by the inclined portion 221 of the reflective body 220a with the bottom surface 151 of the bottom cover 150 may change and may be convex toward the inner space of the bottom cover 150 . The upper region of the inclined portion 221 may form an obtuse angle with the bottom surface 151 of the bottom cover 150 , and the lower region of the inclined portion 221 may form an acute angle with the bottom surface 151 of the bottom cover 150 . have. As described above, by forming the inclined portion 221 of the lower frame 220 , more uniform light may be transmitted to the optical plate 300 . Hereinafter, this will be described with reference to FIGS. 7 and 8 .

5 is a graph illustrating a luminance ratio of an edge region of a display device according to an exemplary embodiment.

Referring to FIG. 5 , compared to the comparative example, it can be seen that the luminance ratio is increased in the edge region of the display panel 110 in the embodiment. Here, the light transmittance is a measurement of the visible light transmittance using a D65 standard light source.

FIG. 5 shows a luminance ratio of a partial area of the display panel 110 , and a position 18 in FIG. 5 indicates an outermost pixel of the display panel 110 . In the comparative example, the luminance ratio of the outermost pixel of the display panel 110 is about 44%, whereas in the embodiment, the luminance ratio of the outermost pixel of the display panel 110 is about 70%. That is, on the basis of the outermost pixel, the embodiment of the present invention can obtain a luminance improvement of about 59% compared to the comparative example. Accordingly, in the embodiment, compared to the comparative example, the width of the dark portion generated in the edge region of the display panel 110 may be reduced due to low luminance. Here, in the case of the comparative example, unlike the embodiment, the guide frame has a structure in which the upper frame having a visible light transmittance in a specific range is replaced with the same material as the lower frame. That is, in the case of the comparative example, the overall shape of the guide frame is similar to that of the embodiment, but is made of only a material that does not transmit visible light.

6 is a graph illustrating a change in a luminance ratio of an outermost pixel of a display panel according to light transmittance of an upper frame.

The upper frame 210 of the guide frame 200 preferably has a light transmittance of 5 to 13%. Referring to FIG. 6 , when the upper frame 210 has a light transmittance of 5 to 13%, the luminance ratio of the edge region of the display panel 110 may be rapidly increased to 60% or more. 6 , it can be seen that the luminance ratio rapidly increases as the light transmittance of the upper frame 210 increases, exhibits a maximum value (approximately 72%) at approximately 8% light transmittance, and then rapidly decreases again.

7 is a cross-sectional view schematically illustrating an optical path in a display device according to an exemplary embodiment. 8 is a cross-sectional view schematically illustrating an optical path in a display device according to a comparative example. For convenience, the configurations of the display device are schematically illustrated in FIGS. 7 and 8 .

In the case of the comparative example of FIG. 8 , that is, when the angle between the inclined portion of the guide frame 200 ′ and the bottom surface of the bottom cover 150 is constant, the guide frame 200 in the light emitting chip 128a adjacent to the guide frame 200 ′. '), the emitted light is reflected and is additionally incident on a partial region of the optical plate 300 . Accordingly, a region in which light is non-uniform is generated in the optical plate 300 and the display panel 110 . However, in the case of the embodiment of FIG. 7 , light emitted from the light emitting chip 128a closest to the guide frame 200 to the inclined portion of the guide frame 200 is emitted from the lower region of the guide frame 200 (the bottom of the bottom cover 150 ). Since it is reflected toward the bottom surface of the bottom cover 150 by an acute angle with the surface and then is reflected again by a reflection plate on the bottom surface of the bottom cover 150 and proceeds in a different direction, the optical plate 300 and the display It is possible to prevent a non-uniform area of light from being generated on the panel 110 .

The display device 100 according to an embodiment of the present invention may be used not only in a television or a monitor, but also in a multi-vision display device.

The multi-vision display apparatus may be implemented by arranging a plurality of display apparatuses 100 according to an embodiment of the present invention in a matrix form. A plurality of display panels 110 of the plurality of display devices 100 may be organically connected to display one image.

Since the display device 100 according to the embodiment of the present invention has a narrow bezel and a dark portion is reduced due to improved luminance of the edge region of the display panel 110 , when displaying an image on the multi-vision display device, a continuous and natural image is displayed. can indicate

Although the embodiments of the present specification have been described in more detail with reference to the accompanying drawings, the present specification is not necessarily limited to these embodiments, and various modifications may be made within the scope without departing from the technical spirit of the present specification. . Accordingly, the embodiments disclosed in the present specification are for explanation rather than limiting the technical spirit of the present specification, and the scope of the technical spirit of the present specification is not limited by these embodiments. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The protection scope of the present specification should be construed by the claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present specification.

100: display device
110: display panel
125: reflector
128: light source assembly
150: bottom cover
180a, 180b: first and second adhesive members
200: guide frame
210: upper frame
210a: transparent body
210b: white paint
220: lower frame
220a: reflective body
220b: white paint
300: optical plate

Claims (20)

display panel;
an optical plate disposed under the display panel;
a guide frame supporting an edge of the optical plate;
a bottom cover to which the guide frame is coupled; and
a light source assembly disposed under the optical plate and including a plurality of light emitting chips accommodated in the bottom cover; and
The guide frame includes a lower frame through which light emitted from the light emitting chips is reflected, and an upper frame disposed on an upper end of the lower frame and through which light emitted from the light emitting chips is partially transmitted. According to claim 1,
The upper frame has a light transmittance of 5 to 13%. According to claim 1,
The upper frame includes a transparent body having an inner surface that is narrower toward an upper end and inclined with respect to a bottom surface of the bottom cover, and a white paint applied on at least an inner surface of the transparent body. 4. The method of claim 3,
The upper end of the transparent body includes a first upper surface and a second upper surface inclined with respect to the first upper surface. 5. The method of claim 4,
A width of the second upper surface is greater than a width of the first upper surface. 5. The method of claim 4,
An angle between the imaginary surface extending from the first upper surface and the second upper surface is 13.5 degrees. 4. The method of claim 3,
The lower frame includes a reflective body having an inclined portion providing a reflective surface inclined with respect to a bottom surface of the bottom cover and a coupling portion extending downwardly from the inclined portion and coupled to the bottom cover. 8. The method of claim 7,
The lower frame may further include a white paint applied on the inclined portion of the reflective body. 8. The method of claim 7,
The angle of the inclined portion with the bottom surface of the bottom cover is changed and the inclined portion is convex toward the inner space of the bottom cover. 8. The method of claim 7,
and the inner surface of the transparent body and the reflection surface of the reflective body are continuously connected to form a single inclined surface. According to claim 1,
the display panel is attached to the optical plate through a first adhesive member disposed along an edge of the optical plate;
and the optical plate is fixed and supported by the guide frame through a second adhesive member disposed on the upper frame of the guide frame. display panel;
an optical plate disposed under the display panel and to which the display panel is attached through a first adhesive member;
a guide frame disposed under the optical plate and to which an edge of the optical plate is attached through a second adhesive member;
a bottom cover to which the guide frame is coupled; and
a light source assembly disposed under the optical plate and including a plurality of light emitting chips accommodated in the bottom cover; and
The guide frame includes a lower frame to which light emitted from the light emitting chips is reflected and an upper frame having a transmittance different from that of the lower frame,
The lower frame and the upper frame form a single inclined surface. 13. The method of claim 12,
The upper frame has a light transmittance of 5 to 13%. 13. The method of claim 12,
The upper frame includes a transparent body having an inner surface that is narrower toward an upper end and inclined with respect to a bottom surface of the bottom cover, and a white paint applied on at least an inner surface of the transparent body. 15. The method of claim 14,
The upper end of the transparent body includes a first upper surface and a second upper surface inclined with respect to the first upper surface. 16. The method of claim 15,
A width of the second upper surface is greater than a width of the first upper surface. 16. The method of claim 15,
An angle between the imaginary surface extending from the first upper surface and the second upper surface is 13.5 degrees. 13. The method of claim 12,
The lower frame includes a reflective body including an inclined portion providing a reflective surface inclined with respect to a bottom surface of the bottom cover and a coupling portion extending downwardly from the inclined portion and coupled to the bottom cover. 19. The method of claim 18,
The lower frame may further include a white paint applied on the inclined portion of the reflective body. 19. The method of claim 18,
The angle of the inclined portion with the bottom surface of the bottom cover is changed and the inclined portion is convex toward the inner space of the bottom cover.

Images