KR20080046411A - Backlight uint and liquid crystal display having the same - Google Patents

Abstract

A backlight unit and a liquid crystal display device including the same are provided to prevent a light guide plate from being bent by a positioning portion of a supporter main. A backlight unit includes a lamp(120), a light guide plate(130), and a supporter main(140). The lamp generates light. The light guide plate is disposed at a side of the lamp, is slanted downward as it goes from an edge portion to a center portion. The light guide plate guides light from the lamp to be irradiated upward. The supporter main is disposed at lower portions of the lamp and the light guide plate. The supporter main includes a positioning portion formed corresponding to a shape of the light guide plate and positioning the light guide plate, and a side portion extending from the positioning portion and forming a receiving space together with the positioning portion.

Description

BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY HAVING THE SAME}

1 is an exploded perspective view showing a conventional backlight unit.

FIG. 2 is a cross-sectional view taken along the line II-II ′ of FIG. 1.

3 is a perspective view illustrating the light guide plate illustrated in FIG. 1.

4 is a cross-sectional view taken along line IV-IV ′ of FIG. 3.

FIG. 5 is a cross-sectional view taken along the line VV ′ of FIG. 3.

6 is an exploded perspective view illustrating a backlight unit according to an exemplary embodiment of the present invention.

FIG. 7 is a cross-sectional view taken along the line VII-VII 'of FIG. 6.

FIG. 8 is a perspective view illustrating the light guide plate illustrated in FIG. 6.

FIG. 9 is a cross-sectional view taken along the line VII-VII 'of FIG. 8.

FIG. 10 is a cross-sectional view taken along the line VII-VII 'of FIG. 8.

FIG. 11 is a perspective view illustrating the supporter main illustrated in FIG. 6.

FIG. 12 is an enlarged perspective view illustrating A of FIG. 11.

FIG. 13 is an enlarged perspective view enlarging B illustrated in FIG. 11.

FIG. 14 is an enlarged perspective view enlarging C illustrated in FIG. 11.

FIG. 15 is an exploded perspective view illustrating a liquid crystal display including the backlight unit illustrated in FIG. 6.

{Description of symbols for main parts of the drawing}

100: liquid crystal display 110: backlight unit

120: lamp 130: light guide plate

132: edge portion 134: center portion

140: supporter main 142: seating portion

150: reflector 160: optical sheet

170: liquid crystal panel 180: top cover

The present invention relates to a backlight unit and a liquid crystal display having the same.

With the development of information technology, the market for a display device, which is a connection medium between a user and information, is growing. Accordingly, flat panel displays (FPDs) such as liquid crystal displays (LCDs), organic light emitting diodes (OLEDs), and plasma display panels (PDPs) may be used. Usage is increasing. Among them, a liquid crystal display capable of realizing high resolution and capable of miniaturization as well as a large size is widely used.

In general, liquid crystal displays display images using the electro-optical properties of liquid crystals. To this end, the liquid crystal display includes a liquid crystal panel and a backlight unit.

The liquid crystal panel displays an image using light provided from the backlight unit.

The backlight unit is located at the rear of the liquid crystal panel to provide light to the liquid crystal panel. The backlight unit is divided into a direct type and an edge type according to the arrangement of the lamps.

The direct type backlight unit refers to a backlight unit in which at least one lamp is disposed on the rear surface of the liquid crystal panel. In the direct backlight unit, as described above, since the lamp is disposed on the rear surface of the liquid crystal panel, the light emitted from the lamp is directly provided to the liquid crystal panel without the help of the light guide plate. The direct type backlight unit can use a larger number of lamps than the edge type backlight unit, and thus is mainly used in a large liquid crystal display device requiring high brightness.

An edge type backlight unit refers to a backlight unit in which a lamp is disposed adjacent to a side of a liquid crystal panel. The light emitted from the lamp in the edge type backlight unit is guided by a light guide plate formed on the rear surface of the liquid crystal panel and then provided to the liquid crystal panel. The edge type backlight unit is mainly used in small and medium sized liquid crystal displays because it is advantageous in thinning. The edge type backlight unit and the light guide plate will be described in more detail with reference to FIGS. 1 to 5.

1 is an exploded perspective view showing a conventional backlight unit. FIG. 2 is a cross-sectional view taken along the line II-II ′ of FIG. 1. 3 is a perspective view illustrating the light guide plate illustrated in FIG. 1. 4 is a cross-sectional view taken along line IV-IV ′ of FIG. 3. FIG. 5 is a cross-sectional view taken along the line VV ′ of FIG. 3.

First, referring to FIGS. 1 and 2, the conventional backlight unit 10 includes a lamp 20, a light guide plate 30, and a supporter main 40. In addition, the conventional backlight unit 10 further includes a reflecting plate 50 and an optical sheet 60.

The lamp 20 is driven by receiving power from the outside, generates light, and is formed on one side of the light guide plate 30. Here, the light emitted from the lamp 20 is directly incident into the light guide plate 30 or is reflected by the lamp housing 122 surrounding a part of the lamp 20 and then enters into the light guide plate 30.

The light guide plate 30 is disposed on the side of the lamp 20 and guides the light incident from the lamp 20 and then emits the light upward.

The light guide plate 30 is formed in a flat shape, as shown in FIGS. 3 to 5. That is, the edge portion 32 of the light guide plate 30 and the center portion 34 of the light guide plate 30 are formed to have the same height with respect to the Z axis. Here, the edge portion 32 of the light guide plate 30 is adjacent to the lamp 20, the light incident portion 32a formed to correspond to the longitudinal direction of the lamp 20, the light incident portion formed to face the light incident portion 32a ( 32b), one side portion 32c formed to be connected to one side of each of the light incident portion 32a and the light incident portion 32b, and the other side portion 32d formed to be connected to the other side of each of the light incident portion 32a and the incoming light portion 32b. ).

Specifically, for example, one side portion 32c and the other side portion 32d of the light guide plate 30 and the center portion 34 of the light guide plate 30 are formed to have the same height with respect to the Z axis. In addition, for example, the light incident portion 32a and the light incident portion 32b of the light guide plate 30 and the central portion 34 of the light guide plate 30 are formed to have the same height with respect to the Z axis. Here, the thickness decreases from the light incident portion 32a to the light incident portion 32b, but the upper surface of the light incident portion 32a and the upper surface of the light incident portion 32b, and the upper surface of the central portion 34 are based on the Z axis. It is formed to have the same height.

As shown in FIGS. 1 and 2, the supporter main 40 is disposed under the lamp 20 and the light guide plate 30, and accommodates the lamp 20 and the light guide plate 30. To this end, the supporter main 40 has a seating portion 42 for mounting the light guide plate 30, and a side portion 44 which is formed to extend from the seating portion 42 to form a storage space together with the seating portion 42. Include. Here, the lamp 20 and the light guide plate 30 are accommodated in the storage space.

The seating part 42 of the supporter main 40 may include first to fourth seats on which the light receiving part 32a, the light receiving part 32b, the one side part 32c and the other side part 32d of the light guide plate 30 are seated, respectively. And seating surfaces 42a, 42b, 42c, and 42d.

The first to fourth seating surfaces 42a, 42b, 42c, and 42d of the supporter main 40 are all formed to correspond to the light guide plate 30 having a flat shape. That is, the outer and inner sides of each of the first to fourth seating surfaces 42a, 42b, 42c, and 42d of the supporter main 40 are formed at the same height with respect to the Z axis.

The reflector 50 is disposed below the light guide plate 30 and reflects light emitted downward through the light guide plate 30 among the light emitted from the lamp 20.

The optical sheet 60 is disposed above the light guide plate 30, and is mounted on the side portion 44 and the light guide plate 30 of the supporter main 40 to improve brightness characteristics of light emitted upward through the light guide plate 30. Let's do it. To this end, the optical sheet 60 is composed of at least one of a diffusion sheet, a prism sheet and a brightness enhancement sheet.

In the conventional backlight unit 10 having the above configuration, the light guide plate 30 is formed in a flat shape as described above.

Accordingly, when an external force such as vibration and shock is introduced while the liquid crystal panel is disposed on the backlight unit 10 employing the light guide plate 30, interference between the light guide plate 30 and the liquid crystal panel is caused by the external force. Can occur. In addition, for example, even when the display unit of the notebook is opened or closed in a system such as a notebook computer, since the notebook user holds the display unit by hand and opens or closes it, interference may occur between the light guide plate 30 and the liquid crystal panel.

As a result, stress may be applied to the liquid crystal of the liquid crystal panel, thereby causing a ripple defect, which is a poor image quality that appears as a wave. For this reason, the liquid crystal display has a problem that image quality may be degraded.

Accordingly, an aspect of the present invention is to provide a backlight unit capable of preventing ripple defects by improving the structure of the backlight unit and a liquid crystal display having the same.

Further technical problems to be achieved by the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned above are clearly understood by those skilled in the art from the following description. It can be understood.

The backlight unit according to the present invention for achieving the above technical problem is a lamp for generating light; A light guide plate disposed at a side of the lamp and inclined downward from an edge portion toward a center portion, and configured to guide the light incident from the lamp and to emit the light upward; And a seating portion disposed under the lamp and the light guide plate, the seating portion formed to correspond to the shape of the light guide plate, and a side portion formed to extend from the seating portion to form an accommodation space together with the seating portion. And a supporter main housing the lamp and the light guide plate.

Here, the edge portion of the light guide plate, the light incident portion adjacent to the lamp and formed to correspond to the longitudinal direction of the lamp; A light incident part formed to face the light incident part; A side portion formed to be connected to one side of each of the light incident portion and the light incident portion; And the other side portion formed to be connected to the other side of each of the light incident portion and the light incident portion.

The seating part of the supporter main may include first to fourth seating surfaces on which the light incident part, the incident light part, one side part, and the other side part of the light guide plate are respectively seated.

According to an aspect of the present invention, there is provided a liquid crystal display device comprising: a lamp generating light; A light guide plate disposed at a side of the lamp and inclined downward from an edge portion toward a center portion, and configured to guide the light incident from the lamp and to emit the light upward; Is disposed below the lamp and the light guide plate, and formed to correspond to the shape of the light guide plate, and a seating portion for mounting the light guide plate, and a side portion formed to extend from the seating portion to form a storage space with the seating portion, A supporter main accommodating the lamp and the light guide plate; And a liquid crystal panel disposed on the light guide plate and mounted on the supporter main to display an image using light incident from the light guide plate.

Here, the edge portion of the light guide plate, the light incident portion adjacent to the lamp and formed to correspond to the longitudinal direction of the lamp; A light incident part formed to face the light incident part; A side portion formed to be connected to one side of each of the light incident portion and the light incident portion; And the other side portion formed to be connected to the other side of each of the light incident portion and the light incident portion.

The seating part of the supporter main may include first to fourth seating surfaces on which the light incident part, the incident light part, one side part, and the other side part of the light guide plate are respectively seated.

Specific details of other embodiments are included in the detailed description and the drawings. Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings.

Hereinafter, a backlight unit and a liquid crystal display having the same according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

6 is an exploded perspective view illustrating a backlight unit according to an exemplary embodiment of the present invention. FIG. 7 is a cross-sectional view taken along the line VII-VII 'of FIG. 6. FIG. 8 is a perspective view illustrating the light guide plate illustrated in FIG. 6. FIG. 9 is a cross-sectional view taken along the line VII-VII 'of FIG. 8. FIG. 10 is a cross-sectional view taken along the line VII-VII 'of FIG. 8. FIG. 11 is a perspective view illustrating the supporter main illustrated in FIG. 6. FIG. 12 is an enlarged perspective view illustrating A of FIG. 11. FIG. 13 is an enlarged perspective view enlarging B illustrated in FIG. 11. FIG. 14 is an enlarged perspective view enlarging C illustrated in FIG. 11.

First, referring to FIGS. 6 and 7, the backlight unit 110 according to the embodiment of the present invention includes a lamp 120, a light guide plate 130, and a supporter main 140. In addition, the backlight unit 110 according to the embodiment of the present invention further includes a reflector plate 150 and an optical sheet 160.

The lamp 120 is driven by receiving power from the outside and generates light. Here, at least one lamp 120 may be formed on one side of the light guide plate 130, or at least one lamp may be formed on one side and the other side of the light guide plate 130, but is not limited thereto. Here, the light emitted from the lamp 120 is directly incident into the light guide plate 130 or reflected by the lamp housing 122 that covers a part of the lamp 120, for example, about three quarters of the lamp 120. The light guide plate 130 may be incident into the light guide plate 130.

The lamp 120 includes a Cold Cathode Fluorescent Lamp (CCFL), a Hot Cathode Fluorescent Lamp (HCFL), an External Electrode Fluorescent Lamp (EEFL), and a Light Emitting Diode (Light Emitting Diode). : LED), but is not limited thereto.

The light guide plate 130 is disposed on the side of the lamp 120 and guides the light incident from the lamp 120 and then emits the light upward. Here, the light guide plate 130 may have a pattern, for example, a dot pattern, formed below the light guide plate 130 to emit light incident from the lamp 120 upward. In addition, the light guide plate 130 may have a prism pattern formed under the light guide plate 130 to collect the light incident from the lamp 120 to emit the collected light upward.

As illustrated in FIGS. 8 to 10, the LGP 130 may be formed to be inclined downward from the edge portion 132 toward the center portion 134, that is, downward (Z-axis direction). Here, the edge portion 132 of the light guide plate 130 is adjacent to the lamp 120, the light incident portion 132a formed to correspond to the longitudinal direction of the lamp 120, the light incident portion formed to face the light incident portion 132a ( 132b), one side portion 132c formed to be connected to one side of each of the light incident portion 132a and the light incident portion 132b, and the other side portion 132d formed to be connected to the other side of each of the light incident portion 132a and the incoming light portion 132b. ) May be included. Here, the thickness may decrease from the light incident part 132a to the light incident part 132b, but is not limited thereto. For example, the thicknesses of the light incident portion 132a and the light incident portion 132b may be the same.

For example, each of the light incidence part 132a and the light incidence part 132b of the light guide plate 130 may be formed from the light guide plate 130 from each of the light incidence part 132a and the light incidence part 132b of the light guide plate 130 to achieve symmetry with each other. It may be formed to be inclined in a downward direction toward the central portion 134 of the (Z-axis direction). Here, only one of the light incidence part 132a and the light incidence part 132b of the light guide plate 130 may be formed to be inclined downwardly (Z-axis direction) toward the center portion 134 of the light guide plate 130.

For example, each of the one side portion 132c and the other side portion 132d of the light guide plate 130 may be formed from each of the light guide plate 132c and the other side portion 132d of the light guide plate 130 to achieve symmetry with each other. It may be formed to be inclined in a downward direction toward the central portion 134 of the 130 (Z-axis direction). Here, only one of the one side portion 132c and the other side portion 132d of the light guide plate 130 may be formed to be inclined downwardly (Z-axis direction) toward the center portion 134 of the light guide plate 130.

For example, each of the light incidence part 132a, the light incidence part 132b, the one side part 132c and the other side part 132d of the light guide plate 130 may be the light incidence part 132a and the light incidence part of the light guide plate 130. 132b), one side portion 132c and the other side portion (132d) is formed so as to be inclined in a curve downward toward the central portion 134 of the light guide plate 130 (Z-axis direction) so that the light guide plate 130 is formed in a ripple shape Can be.

As described above, the light guide plate 130 is formed in a shape in which at least one or more of the light incident portion 132a, the light incident portion 132b, one side 132c, and the other side 132d is curved toward the center portion 134. Since it can, ripple can be prevented.

That is, when the liquid crystal panel is disposed on the backlight unit 110 employing the light guide plate 130, the center portion and the light guide plate of the liquid crystal panel may be spaced apart from the spaced apart interval between the edge portion of the liquid crystal panel and the edge portion 132 of the light guide plate 130. The interval at which the central portion 134 of 130 is spaced apart may be relatively larger. In this case, when an external force such as vibration and shock is introduced, the external force may be distributed to the edge portion 132 of the light guide plate 130, so that the edge portion of the liquid crystal panel and the edge portion 132 of the light guide plate 130 may be dispersed. The distance between the center portion of the liquid crystal panel and the center portion 134 of the light guide plate 130 may be relatively larger than the spaced interval.

For this reason, even if the external force is introduced, the center portion 134 of the light guide plate 130 may not substantially come into contact with the center portion of the liquid crystal panel in which an image is displayed. As a result, the display quality of the liquid crystal display can be improved.

As illustrated in FIGS. 6 and 7, the supporter main 140 is disposed under the lamp 120 and the light guide plate 130, and accommodates the lamp 120 and the light guide plate 130. To this end, the supporter main 140 is formed to correspond to the shape of the light guide plate 130 and is formed to extend from the seating portion 142 for seating the light guide plate 130 and the seating portion 142 together with the seating portion 142. It may include a side portion 144 forming a receiving space. Here, the lamp 120 and the light guide plate 130 are accommodated in the storage space. Here, the side portion 144 may be formed by cutting a portion of a predetermined region, for example, a region in which the lamp 120 is located, but is not limited thereto.

As shown in FIG. 11, the seating part 142 of the supporter main 140 has a light receiving part 132a, a light receiving part 132b, one side part 132c, and the other side part 132d of the light guide plate 130, respectively. The seated first to fourth seating surfaces 142a, 142b, 142c, and 142d may be included. Here, the first to fourth seating surfaces 142a, 142b, 142c, and 142d may be formed to be separated from each other, or at least two or more may be formed to be connected to each other.

At least one or more of the first to fourth seating surfaces 142a, 142b, 142c, and 142d of the supporter main 140 may be formed to be inclined in a straight line from the outside toward the inside (Z-axis direction). . Here, going from the outside to the inside corresponds to going from the edge portion 132 of the light guide plate 130 to the center portion 134 of the light guide plate 130.

For example, when the incoming light incident portion 132b of the light guide plate 130 is formed to be inclined in a downward direction (Z-axis direction) toward the center portion 134 of the light guide plate 130, the supporter main 140 As illustrated in FIGS. 11 and 12, the second seating surface 142b may be formed to be inclined in a straight line in a downward direction (Z-axis direction) from the outer side to the inner side. Here, the angle θ1 at which the second seating surface 142b of the supporter main 140 is inclined is a light incident plate 132b of the light guide plate 130 from the light incident plate 132b of the light guide plate 130. Since it corresponds to the grade inclined downward toward the center part 134 (Z-axis direction), it is not limited.

For example, each of the one side portion 132c and the other side portion 132d of the light guide plate 130 may be disposed at the center portion 134 of the light guide plate 130 from each of the one side portion 132c and the other side 132d of the light guide plate 130. When formed to be inclined in a downward direction (Z-axis direction) toward the (), each of the third and fourth seating surface (142c, 142d) of the supporter main 140 is shown in Figures 11, 13 and 14 As described above, it may be formed to be inclined in a straight line downward from the outer side to the inner side (Z-axis direction). Here, the angles θ2 and θ3 of the third and fourth seating surfaces 142c and 142d of the supporter main 140 are respectively inclined at one side portion 132c and the other side portion 132d of the light guide plate 130. Since it corresponds to the degree which curves incline downward (Z-axis direction) toward each center part 134 of the light guide plate 130 from each of the one side part 132c and the other side part 132d of 130, it is not limited.

For example, each of the light incidence part 132a, the light incidence part 132b, the one side part 132c, and the other side part 132d of the light guide plate 130 may be the light incidence part 132a and the light incidence part of the light guide plate 130. 132b), when the one side portion 132c and the other side portion (132d) is formed to be inclined in a curve downward toward the central portion 134 of the light guide plate 130 (Z-axis direction), the first of the supporter main 140 Each of the first to fourth seating surfaces 142a, 142b, 142c, and 142d may be formed to be inclined in a straight line in a downward direction (Z-axis direction) from the outer side to the inner side.

Meanwhile, at least one or more of the first to fourth seating surfaces 142a, 142b, 142c, and 142d of the supporter main 140 are inclined in a curved shape instead of being inclined downwardly from the outside toward the inside. Can be formed. Here, since the case is formed to be inclined in the curve is similar to the case formed in the straight line, the detailed description thereof will be omitted.

As described above, since the seating portion 142 of the supporter main 140 is formed to correspond to the shape of the light guide plate 130, the shape of the light guide plate 130 is changed by the seating portion 142 of the supporter main 140. It can remain unchanged. That is, the curved shape of the light guide plate 130 may be maintained as it is.

6 and 7, the reflector 150 is disposed below the light guide plate 130 and reflects light emitted downward through the light guide plate 130 among the light emitted from the lamp 120. Let's do it.

The optical sheet 160 is disposed on the light guide plate 130, and is mounted on the side portion 144 and / or the light guide plate 130 of the supporter main 140 to emit light upward through the light guide plate 130. To improve. To this end, the optical sheet 160 may be composed of at least one of a diffusion sheet, a prism sheet, and a brightness enhancement sheet, and the arrangement thereof is not limited.

15 is an exploded perspective view illustrating a liquid crystal display including the backlight unit illustrated in FIG. 6. Since the backlight unit illustrated in FIG. 15 is the same as described above, the same reference numerals are used, and redundant descriptions are omitted, and only the features thereof will be described.

Referring to FIG. 15, the liquid crystal display 100 according to the exemplary embodiment of the present invention includes a backlight unit 110 and a liquid crystal panel 170.

The backlight unit 110 provides light to the liquid crystal panel 170. To this end, the backlight unit 110 includes a lamp 120, a light guide plate 130, and a supporter main 140. In addition, the backlight unit 110 according to the embodiment of the present invention further includes a reflector plate 150 and an optical sheet 160.

The liquid crystal panel 170 is disposed on the light guide plate 130, and is seated on the supporter main 140 to be incident from the light guide plate 130, that is, emitted from the lamp 120 and upwardly by the light guide plate 130. An image is displayed using the emitted light. To this end, the liquid crystal panel 170 includes a color filter substrate 172 and a thin film transistor substrate 174 facing each other with the liquid crystal interposed therebetween. Here, the liquid crystal panel 170 may be fixed on the supporter main 140 by the top cover 180 fastened to the supporter main 140 through hooks and / or screws.

The color filter substrate 172 expresses color. To this end, the color filter substrate 172 includes an array of color filters, for example, red / green / blue color filters, formed of a thin film on a transparent substrate such as glass or plastic. Here, the first polarizer may be attached to the outer surface of the color filter substrate 172.

The thin film transistor substrate 174 applies a driving voltage provided from the printed circuit board 176 to the liquid crystal through the driving film 178 in response to the driving signal provided from the printed circuit board 176. To this end, the thin film transistor substrate 174 includes a thin film transistor, a pixel electrode, and a common electrode formed of a thin film on another transparent substrate such as glass or plastic. Here, the common electrode may be formed on the color filter substrate 172. Here, the second polarizer may be attached to the outer surface of the thin film transistor substrate 174.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can realize that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. I can understand that.

Therefore, since the embodiments described above are provided to completely inform the scope of the invention to those skilled in the art, it should be understood that they are exemplary in all respects and not limited. The invention is only defined by the scope of the claims.

According to the present invention made as described above, since the light guide plate can be formed to be bent, defects such as ripple can be prevented. As a result, the display quality of the liquid crystal display device can be improved. In addition, the curved shape of the light guide plate may be maintained without being deformed by the seating part of the supporter main.

Claims (16)

A lamp that generates light; A light guide plate disposed at a side of the lamp and inclined downward from an edge portion toward a center portion, and configured to guide the light incident from the lamp and to emit the light upward; And Is disposed below the lamp and the light guide plate, and formed to correspond to the shape of the light guide plate, and a seating portion for seating the light guide plate, and a side portion formed to extend from the seating portion to form a storage space with the seating portion, A supporter main housing the lamp and the light guide plate Backlight unit comprising a. The edge portion of the light guide plate of claim 1, A light incident part adjacent to the lamp and formed to correspond to the longitudinal direction of the lamp; A light incident part formed to face the light incident part; A side portion formed to be connected to one side of each of the light incident portion and the light incident portion; And The other side portion formed to be connected to the other side of each of the light incident portion and the light incident portion A backlight unit comprising a. The method of claim 2, Each of the light incidence part and the light incidence part of the light guide plate is formed to be inclined downward in a curved direction from the light incidence part and the light incidence part of the light guide plate toward the center of the light guide plate. The method of claim 2, Each of the one side portion and the other side portion of the light guide plate is formed to be inclined downward in a curve toward the center portion of the light guide plate from each of the one side portion and the other side portion of the light guide plate. The method of claim 2, Each of the light-receiving portion, the light-receiving portion, one side portion and the other side portion of the light guide plate is formed to be inclined downwardly toward the center of the light guide plate from each of the light-receiving portion, the light-receiving portion, one side and the other side of the light guide plate Backlight unit. The mounting part of the supporter main according to claim 2, First to fourth seating surfaces on which the light incident part, the incident light part, one side part, and the other side part of the light guide plate are respectively seated. Backlight unit comprising a. The method of claim 6, At least one or more of the first to fourth seating surfaces of the supporter main are formed to be inclined downward in a straight line from the outer side to the inner side. The method of claim 6, At least one or more of the first to fourth seating surfaces of the supporter main are formed to be inclined downward in a downward direction from the outside to the inside. A lamp that generates light; A light guide plate disposed at a side of the lamp and inclined downward from an edge portion toward a center portion, and configured to guide the light incident from the lamp and to emit the light upward; Is disposed below the lamp and the light guide plate, and formed to correspond to the shape of the light guide plate, and a seating portion for seating the light guide plate, and a side portion formed to extend from the seating portion to form a storage space with the seating portion, A supporter main accommodating the lamp and the light guide plate; And A liquid crystal panel disposed on the light guide plate and mounted on the supporter main to display an image using light incident from the light guide plate; Liquid crystal display comprising a. The method of claim 9, wherein the edge portion of the light guide plate, A light incident part adjacent to the lamp and formed to correspond to the longitudinal direction of the lamp; A light incident part formed to face the light incident part; A side portion formed to be connected to one side of each of the light incident portion and the light incident portion; And The other side portion formed to be connected to the other side of each of the light incident portion and the light incident portion Liquid crystal display comprising a. The method of claim 10, And each of the light incidence part and the light incidence part of the light guide plate is formed to be inclined downward from the light incidence part and the light incidence part of the light guide plate toward the center of the light guide plate. The method of claim 10, Each of the one side portion and the other side portion of the light guide plate is formed so as to be inclined downward curved toward the center portion of the light guide plate from each of the one side portion and the other side portion of the light guide plate. The method of claim 10, Each of the light-receiving portion, the light-receiving portion, one side portion and the other side portion of the light guide plate is formed to be inclined downwardly toward the center of the light guide plate from each of the light-receiving portion, the light-receiving portion, one side and the other side of the light guide plate Liquid crystal display. The method of claim 10, wherein the mounting portion of the supporter main, First to fourth seating surfaces on which the light incident part, the incident light part, one side part, and the other side part of the light guide plate are respectively seated. Liquid crystal display comprising a. The method of claim 14, At least one of the first to fourth seating surfaces of the supporter main is formed to be inclined downward in a straight line from the outer side to the inner side. The method of claim 14, At least one of the first to fourth seating surfaces of the supporter main is formed to be inclined downward in a downward direction from the outer side to the inner side.

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