KR20070060187A - Lamp fixing member, back light assembly and liquid crystal display apparatus having the same - Google Patents

Abstract

A lamp fixing member, a backlight assembly including the same, and an LCD(Liquid Crystal Display) are provided to reduce a temperature variation and prevent a display defect caused by the temperature variation, by forming a lower support plate and an upper support plate of a lamp fixing member of silicon. At least one lamp fixing portion(420) is formed on an upper surface of a body(410) and includes a groove for fixing a lamp(300). A lower support plate(430) is coupled to the lamp fixing portion, and fixes a lower portion of the lamp. An upper support plate(440) is coupled to the lamp fixing portion, and fixes an upper portion of the lamp. The lamp fixing portion includes a coupling part for coupling with the lower support plate and the upper support plate. The coupling part is formed at both sides with reference to the groove.

Description

Lamp fixing member, backlight assembly and liquid crystal display device having same {LAMP FIXING MEMBER, BACK LIGHT ASSEMBLY AND LIQUID CRYSTAL DISPLAY APPARATUS HAVING THE SAME}

1 is an exploded perspective view showing a backlight assembly according to an embodiment of the present invention.

2 is a perspective view showing in detail the lamp fixing member shown in FIG.

3 is a side view of the lamp fixing member shown in FIG. 2.

4 is an exploded perspective view of the lamp fixing member illustrated in FIG. 2.

5 is a perspective view showing in detail the lamp socket shown in FIG.

6 is an exploded perspective view illustrating a liquid crystal display according to an exemplary embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: backlight assembly 200: storage container

300: lamp 400: lamp fixing member

410: body portion 420: lamp fixing portion

430: lower support plate 440: upper support plate

450: diffuser plate support 460: body coupling portion

310 lamp socket 350 diffuser plate

360: optical sheet 370: side mold

810: liquid crystal display panel 820: driving circuit

910: middle mold 920: top chassis

The present invention relates to a lamp fixing member, a backlight assembly and a liquid crystal display device having the same, and more particularly to a lamp fixing member, a backlight assembly and a liquid crystal display device having improved lamp assembly, and display quality can be improved It is about.

In general, the liquid crystal display is a flat panel display that displays an image using liquid crystal, and is thinner and lighter than other display devices, and has advantages such as low driving voltage and low power consumption. Due to these advantages, liquid crystal displays are used in various products such as notebooks, monitors, and TVs.

Since the liquid crystal display device is a non-light emitting device in which a liquid crystal display panel for displaying an image does not emit light by itself, it requires a backlight assembly for supplying light to the liquid crystal display panel.

The backlight assembly includes a lamp for generating light. In this case, a cold cathode fluorescent lamp (CCFL) having a long thin cylindrical shape is mainly used. The backlight assembly is classified into an edge type and a direct type according to the position of the lamp.

The edge type is a method in which one or two lamps are positioned on the side of the transparent light guide plate and the light obtained by multiple reflection of light using one side of the light guide plate is emitted to the liquid crystal display panel. The direct type is a method of reflecting and diffusing the light emitted from the lamp by placing a plurality of lamps directly under the liquid crystal display panel, a diffuser plate on the front of the lamp and a reflector plate on the back of the lamp. Therefore, the edge type is used for relatively small liquid crystal display devices such as notebooks and monitors, while the direct type is mainly used for large liquid crystal display devices requiring high brightness such as TVs.

In the case of the direct type backlight assembly, as the size of the liquid crystal display increases, the length of the lamp becomes longer and the size of the diffusion plate becomes larger. Accordingly, the backlight assembly includes a lamp fixing member that supports the diffuser plate while fixing the lamp.

The lamp fixing member includes a lamp fixing part for fixing the lamp and a diffusion plate support part for supporting the diffuser plate. In general, the lamp fixing portion has a circular clip shape with a portion of the upper portion opened.

In such a structure, it is impossible to automate the assembly of the lamp, and thus, the lamp must be coupled to the lamp fixing unit by the operator's manual operation, resulting in a complicated assembly process and a long process time. In addition, since the temperature difference occurs in the lamp area fixed by the lamp fixing part compared with other areas, there is a problem in that a display quality defect such as a dark part occurs.

Accordingly, the present invention has been made in view of such a conventional problem, and the present invention provides a lamp fixing member capable of improving the assemblability of assembling the lamp to the lamp holding member and removing display quality defects caused by the lamp holding member. do.

In addition, the present invention provides a backlight assembly having the lamp fixing member.

In addition, the present invention provides a liquid crystal display device having the above-described backlight assembly.

Lamp fixing member according to an aspect of the present invention includes a body portion, a lamp fixing portion, a lower support plate and an upper support plate. The lamp fixing portion is formed on the upper surface of the body portion, and has a groove for fixing the lamp. The lower support plate is coupled to the lamp fixing part to fix the lower part of the lamp. The upper support plate is coupled to the lamp fixing part to fix the upper part of the lamp.

The lamp fixing part includes a coupling part for coupling with the lower support plate and the upper support plate. The coupling part is formed at both sides with respect to the groove.

The lower support plate may include at least one lamp support part inserted into the groove of the lamp fixing part to support the lower part of the lamp and a lower connection part connecting the lamp support part to each other. The lower support plate has a lower coupling hole for coupling with the lamp fixing part. The lower coupling holes are formed at both sides of the lamp support part.

The upper support plate includes at least one lamp cover portion covering the upper portion of the lamp and an upper connection portion connecting the lamp cover portion to each other. The upper support plate has an upper coupling hole for coupling with the lamp fixing portion. The upper coupling holes are formed at both sides of the lamp cover part.

Preferably, the lower support plate and the upper support plate is formed of a silicon material.

The lamp fixing member further includes a diffusion plate support protruding from an upper surface of the body portion. In this case, the lower support plate has a first hole through which the diffusion plate support is fitted, and the upper support plate has a second hole through which the diffusion plate support is fitted.

The lamp fixing member further includes a body coupling portion formed on the bottom surface of the body portion for coupling with the storage container.

According to an aspect of the present invention, a backlight assembly includes a storage container, lamps, a diffusion plate, and a lamp fixing member. The storage container includes a bottom portion and a side portion to form a storage space. The lamps are arranged parallel to each other on the bottom of the storage container. The diffuser plate is disposed on top of the lamps. The lamp fixing member is coupled to the bottom of the storage container. The lamp fixing member may include a body portion extending in a direction crossing the lamps, an upper surface of the body portion, and at least one lamp fixing portion having a groove for fixing the lamp, and coupled to the lamp fixing portion. It has a lower support plate for fixing the bottom of the, and the upper support plate is coupled to the lamp fixing part for fixing the upper portion of the lamp.

A liquid crystal display according to an aspect of the present invention includes a backlight assembly for supplying light, a display unit disposed on the backlight assembly to display an image, and a top chassis to fix the display unit. The backlight assembly includes a storage container, lamps and a lamp fixing member. The lamps are arranged parallel to each other on the bottom of the storage container. The lamp fixing member is coupled to the bottom of the storage container. The lamp fixing member may include a body portion extending in a direction crossing the lamps, an upper surface of the body portion, and at least one lamp fixing portion having a groove for fixing the lamp, and coupled to the lamp fixing portion. It includes a lower support plate for fixing the lower portion of, and the upper support plate coupled to the lamp fixing portion for fixing the upper portion of the lamp.

According to the lamp fixing member, the backlight assembly having the same, and the liquid crystal display device, the lamp assembly may be automated, and the lamp assembly may be improved, and the display quality may be improved by reducing the temperature variation of the lamp fixing portion.

Hereinafter, with reference to the accompanying drawings, it will be described in detail a preferred embodiment of the present invention.

1 is an exploded perspective view showing a backlight assembly according to an embodiment of the present invention.

Referring to FIG. 1, the backlight assembly 100 according to an exemplary embodiment includes a storage container 200, a plurality of lamps 300, a diffusion plate 350, and a lamp fixing member 400.

The storage container 200 includes a bottom portion 210 and a side portion 220 extending from an edge of the bottom portion 210 to form a storage space. The storage container 200 is, for example, made of a metal having excellent strength and little deformation.

The first diffusion plate guide part 222 may be formed at the side portion 220 corresponding to the long side direction of the storage container 200 to guide the fixed position of the diffusion plate 350. The first diffusion plate guide part 222 protrudes from the upper surface of the side part 220 to a predetermined height to guide the storage position of the diffusion plate 350.

The lamps 300 are arranged parallel to each other on the bottom portion 210 of the storage container 200. The lamps 300 generate light in response to driving power applied from the outside. The lamps 300 are made of a cold Cathode Fluorescent Lamp (CCFL) having an elongated cylindrical shape. In contrast, the lamps 300 may be formed of an external electrode fluorescent lamp (EEFL) having external electrodes formed at both ends thereof. In addition, the lamps 300 may have a structure bent in a U shape.

Both ends of the lamps 300 are fixed by a lamp socket 310 that is fixed to the storage container 200.

The diffusion plate 350 is disposed above the lamps 300. The diffusion plate 350 diffuses the light generated from the lamps 300 to improve the brightness uniformity of the light. The diffusion plate 350 is formed in a plate shape having a predetermined thickness and is spaced apart from the lamps 300 by a predetermined distance.

The diffusion plate 350 is made of a transparent material for transmitting light, and includes a diffusion agent for diffusing light. The diffusion plate 350 is made of, for example, polymethyl methacrylate (PMMA) material.

The backlight assembly 100 may further include at least one optical sheet 360 disposed on the diffuser plate 350. The optical sheet 360 changes the path of the light diffused through the diffusion plate 350 to improve the luminance characteristic. The optical sheet 360 may include a light collecting sheet for condensing the light diffused through the diffusion plate 350 in the front direction to improve the front brightness of the light. In addition, the optical sheet 360 may include a diffusion sheet for diffusing the light diffused through the diffusion plate 350 once again. Meanwhile, the backlight assembly 100 may further include an optical sheet having various functions, such as a reflective polarizing sheet, in accordance with required luminance characteristics.

The lamp fixing member 400 is fixed to the bottom 210 of the storage container 200 to fix the lamps 300. Since the longer the length of the lamp 300, the greater the possibility of bending or deformation, the lamp fixing member 400 to stably fix the central portion of the lamp 300 to prevent sagging and deformation of the lamp 300.

The number of lamp fixing members 400 is determined according to the number of lamps 300. For example, four lamps 300 are fixed to one lamp fixing member 400. When there are two or more lamp fixing members 400, the lamp fixing members 400 may be disposed in a zigzag form along a direction perpendicular to the length direction of the lamp 300.

Each lamp 300 is fixed by one lamp fixing member 400. However, when the length of the lamp 300 is longer, by increasing the number of the lamp fixing member 400, each lamp 300 is at least two lamp holding members spaced apart by a predetermined distance along the longitudinal direction ( 400). Even in this case, the lamp fixing members 400 may be disposed in a zigzag form along a direction perpendicular to the longitudinal direction of the lamp 300.

The backlight assembly 100 may further include side molds 370 disposed corresponding to both ends of the lamps 300. The side mold 370 is coupled to the storage container 200 while covering both ends of the lamps 300. The side mold 370 covers both ends of the lamps 300 having lower luminance than other regions, that is, the electrode region of the lamp 300 to eliminate luminance unevenness.

The side mold 370 supports an edge of the diffusion plate 350 while supporting an edge of the diffusion plate 350 disposed thereon. In the side mold 370, a second diffusion plate guide part 372 may be formed to guide the fixed position of the short side of the diffusion plate 350. The second diffusion plate guide part 372 protrudes from the upper surface of the side mold 370 to a predetermined height to guide the storage position of the diffusion plate 350.

Although not shown, the backlight assembly 100 may further include a middle mold for fixing the diffusion plate 350 and the optical sheet 360. The middle mold is combined with the storage container 200 from the top of the optical sheet 360 to fix the edges of the diffusion plate 350 and the optical sheet 360.

2 is a perspective view showing in detail the lamp holding member shown in Figure 1, Figure 3 is a side view of the lamp holding member shown in Figure 2, Figure 4 is an exploded perspective view of the lamp holding member shown in FIG.

2, 3, and 4, the lamp fixing member 400 includes a body 410, a lamp fixing part 420, a lower support plate 430, and an upper support plate 440.

The body portion 410 is formed to extend in a direction crossing the lamps 300.

One or more lamp fixing parts 420 are formed on an upper surface of the body part 410. The lamp fixing part 420 has a groove 422 for fixing the lamp 300.

The lamp fixing part 420 includes a coupling part 424 for coupling with the lower support plate 430 and the upper support plate 440. Coupling portion 424 is formed on both sides with respect to the groove 422.

One or more lamp fixing parts 420 are formed on both sides of the diffuser plate support part 450. For example, the lamp fixing member 400 includes a total of four lamp fixing parts 420 disposed on two sides of each of the lamp fixing members 400. Alternatively, the lamp fixing member 400 may have various numbers of lamp fixing parts 420.

The body 410 and the lamp fixing part 420 are integrally formed of the same material. For example, the body 410 and the lamp fixing part 420 are formed of a plastic material.

The lower support plate 430 is combined with the lamp fixing part 420 to fix the lower part of the lamp 300. The lower support plate 430 includes a lamp support 432 and a lower connection 434.

The lamp support part 432 is inserted into the groove 422 of the lamp fixing part 420 to support the lower part of the lamp 300. The lamp support part 432 has the same curvature as the outer circumferential surface of the lamp 300 and has a convex shape downward.

The lower connection part 434 extends in parallel with the body part 410 to connect the lamp support part 432 with each other.

The lower support plate 430 has a lower coupling hole 436 for coupling with the lamp fixing part 420. The lower coupling holes 436 are formed at both sides of the lamp support part 432 corresponding to the coupling part 424 of the lamp fixing part 420. That is, the lower coupling hole 436 is formed in the lower connection part 434 adjacent to the lamp support part 432.

The upper support plate 440 is combined with the lamp fixing part 420 to fix the upper part of the lamp 300. The upper support plate 440 includes a lamp cover part 442 and an upper connection part 444.

The lamp cover part 442 is disposed on the lamp support part 432 to cover the upper part of the lamp 300. The lamp cover 442 has the same curvature as the outer circumferential surface of the lamp 300 and has a convex upward shape. Thus, the lamp 300 is wrapped by the lamp support portion 432 and the lamp cover portion 442.

The upper connection part 444 extends in parallel with the lower connection part 434 to connect the lamp cover part 442 with each other. When the upper support plate 440 is coupled with the lamp fixing part 420, the upper connection part 444 is in close contact with the lower connection part 434.

The upper support plate 440 has an upper coupling hole 446 for coupling with the lamp fixing part 420. The upper coupling holes 446 are formed at both sides of the lamp cover part 442 corresponding to the coupling part 424 of the lamp fixing part 420. That is, the upper coupling hole 446 is formed in the upper connection part 444 adjacent to the lamp cover part 442.

The lower support plate 430 and the upper support plate 440 are formed of a material having a predetermined elasticity to cushion external shocks applied to the lamp 300. For example, the lower support plate 430 and the upper support plate 440 are formed of silicon material. The lower support plate 430 and the upper support plate 440 which are in direct contact with the lamp 300 are formed of a silicon material, thereby reducing the temperature deviation between the fixed area and the other area of the lamp 300 and darkening due to the temperature deviation. It is possible to reduce display defects such as these.

The lamp fixing member 400 further includes a diffuser plate supporter 450. The diffuser plate supporter 450 protrudes from an upper surface of the body portion 410 to support the diffuser plate 350 (shown in FIG. 1). As the diffusion plate 350 becomes larger, the center portion sags downward. Therefore, the diffusion plate support part 450 prevents the diffusion plate 350 from sagging to maintain a constant distance between the lamp 300 fixed to the lamp fixing part 420 and the diffusion plate 350. The diffuser plate support 450 has a conical shape, for example.

The lower support plate 430 has a first hole 438 into which the diffusion plate support part 450 is fitted, and the upper support plate 440 has a second hole 448 into which the diffusion plate support part 450 is fitted. Since the diffusion plate support part 450 protrudes higher than the lamp fixing part 420, when the lower support plate 430 and the upper support plate 440 are coupled to the lamp fixing part 420, the diffusion plate support part 450 is provided. Protrudes upward through the first hole 438 and the second hole 448.

The lamp fixing member 400 further includes at least one body coupling portion 460 formed on the bottom surface of the body portion 410 for coupling with the storage container 200 (shown in FIG. 1). The body coupling part 460 penetrates through the open area of the bottom part 210 of the storage container 200, and is then hooked with the bottom part 210. Forming position and the number of the body coupling portion 460 may be variously modified.

5 is a perspective view showing in detail the lamp socket shown in FIG.

1 and 5, in a state in which the lamp socket 310 is mounted on the circuit board by the number of lamps 300, the lamp socket 310 is disposed inside the storage container 200 through an open area of the storage container 200. Is placed.

The lamp socket 310 includes a socket body 312 and a socket fixing part 314. The socket body portion 312 has a lamp hole 313 into which the lamp 300 is inserted and fixed. After the lamp 300 is seated in the socket body portion 312, the socket fixing portion 314 is coupled to the socket body portion 312 to fix the lead wire 302 portion of the lamp 300. In this case, the lead wire 302 of the lamp 300 is electrically connected to the conductive terminal (not shown) formed in the socket body 312.

On the other hand, the assembly process of the lamp 300 proceeds through an automated machine. First, the lamp fixing member 400 in a state in which the lower support plate 430 is coupled to the lamp fixing part 420 is coupled to the storage container 200, and the lamp sockets 310 are coupled to the storage container 200.

Thereafter, the lamps 300 are disposed on the lower support plate 430 of the lamp fixing member 400 and the socket body 312 of the lamp socket 310 through an automated machine.

Thereafter, the upper support plate 440 of the lamp fixing member 400 is coupled to the lamp fixing part 420, and the socket fixing part 314 of the lamp socket 310 is coupled to the socket body part 312.

As such, by mounting the lamps 300 through an automated process, the assembly process of the lamp 300 may be simplified and the assembly time may be shortened.

6 is an exploded perspective view illustrating a liquid crystal display according to an exemplary embodiment of the present invention.

Referring to FIG. 6, the liquid crystal display 700 according to an exemplary embodiment of the present invention includes a backlight assembly 100 for supplying light, a display unit 800 for displaying an image, and a displane unit 800. Top chassis 920 for fixing.

Since the backlight assembly 100 has the same structure as shown in FIGS. 1 to 5, the same reference numerals are used for the same components, and detailed description thereof will be omitted.

The display unit 800 includes a liquid crystal display panel 810 for displaying an image using light supplied from the backlight assembly 100, and a driving circuit unit 820 for driving the liquid crystal display panel 810.

The liquid crystal display panel 810 includes a first substrate 812, a second substrate 814 coupled to the first substrate 812, and a liquid crystal interposed between the first substrate 812 and the second substrate 814. Layer 816.

The first substrate 812 is a substrate in which a thin film transistor (hereinafter, referred to as TFT), which is a switching element, is formed in a matrix form. For example, the first substrate 812 is made of glass. A data line and a gate line are respectively connected to the source terminal and the gate terminal of the TFTs, and a pixel electrode made of a transparent conductive material is connected to the drain terminal.

The second substrate 814 is a substrate in which an RGB color filter for realizing color is formed in a thin film form. The second substrate 814 is made of, for example, a glass material. The common electrode made of a transparent conductive material is formed on the second substrate 814.

In the liquid crystal display panel 810 having such a configuration, when power is applied to the gate terminal of the TFT and the TFT is turned on, an electric field is formed between the pixel electrode and the common electrode. The arrangement of the liquid crystal molecules of the liquid crystal layer 816 interposed between the first substrate 812 and the second substrate 814 is changed by this electric field, and is supplied from the backlight assembly 100 according to the arrangement change of the liquid crystal molecules. The transmittance of light is changed to display an image of a desired gray scale.

The driving circuit unit 820 may include a data printed circuit board 822 for supplying a data driving signal to the liquid crystal display panel 810, a gate printed circuit board 824 for supplying a gate driving signal to the liquid crystal display panel 810, and data printing. A data driving circuit film 826 connecting the circuit board 822 to the liquid crystal display panel 810, and a gate driving circuit film 828 connecting the gate printed circuit board 824 to the liquid crystal display panel 810. .

The data driving circuit film 826 and the gate driving circuit film 828 include a driving chip. The data driving circuit film 826 and the gate driving circuit film 828 are formed of, for example, a tape carrier package (TCP) or a chip on film (COF).

The data printed circuit board 822 is disposed on the side or the back of the storage container 200 by the bending of the data driving circuit film 826, and the gate printed circuit board 824 is connected to the bending of the gate driving circuit film 828. It is arranged on the side or the back of the storage container 200 by. Meanwhile, the gate printed circuit board 824 may be removed by forming separate signal wires on the liquid crystal display panel 810 and the gate driving circuit film 828.

The liquid crystal display device 700 may further include a middle mold 910 disposed between the optical sheet 360 and the liquid crystal display panel 810. The middle mold 910 supports the liquid crystal display panel 810 while fixing the optical sheet 360 and the diffusion plate 350. The middle mold 910 is formed integrally in a frame shape. Alternatively, the middle mold 910 may have a structure divided into two pieces having a “C” shape. In addition, the middle mold 910 may have a structure divided into four pieces having an "a" shape.

The top chassis 920 is coupled to the storage container 200 while surrounding the edge of the liquid crystal display panel 810 to fix the liquid crystal display panel 810 to the upper portion of the middle mold 910. The top chassis 920 prevents the liquid crystal display panel 810 from being damaged by an external impact and prevents the liquid crystal display panel 810 from being separated from the middle mold 910. The top chassis 920 is formed integrally in a frame shape. Alternatively, the top chassis 920 may have a structure divided into two pieces having a "c" shape or four pieces having a "a" shape.

According to such a lamp fixing member, the backlight assembly having the same, and the liquid crystal display device, the lamp assembly may be automated, thereby improving assembly of the lamp.

In addition, by forming the lower support plate and the upper support plate of the lamp fixing member in direct contact with the lamp, the temperature variation of the lamp fixing portion can be reduced, and display defects such as dark portions due to the temperature variation can be eliminated.

In the detailed description of the present invention described above with reference to the preferred embodiments of the present invention, those skilled in the art or those skilled in the art having ordinary skill in the art will be described in the claims to be described later It will be understood that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

Claims (22)

Body portion; At least one lamp fixing part formed on an upper surface of the body part and having a groove for fixing the lamp; A lower support plate coupled to the lamp fixing part to fix a lower part of the lamp; And Lamp fixing member coupled to the lamp fixing portion including an upper support plate for fixing the upper portion of the lamp. The lamp fixing member of claim 1, wherein the lamp fixing part comprises a coupling part for coupling with the lower support plate and the upper support plate. The lamp fixing member of claim 2, wherein the coupling part is formed at both sides of the groove. The method of claim 1, wherein the lower support plate At least one lamp support inserted into the groove of the lamp fixing part to support a lower part of the lamp; And Lamp fixing member comprising a lower connection for connecting the lamp support to each other. The lamp fixing member of claim 4, wherein the lower support plate has a lower coupling hole for coupling with the lamp fixing unit. The lamp fixing member of claim 5, wherein the lower coupling hole is formed at both sides of the lamp support unit. The method of claim 1, wherein the upper support plate At least one lamp cover portion covering an upper portion of the lamp; And Lamp fixing member comprising an upper connection for connecting the lamp cover portion with each other. 8. The lamp fixing member of claim 7, wherein the upper support plate has an upper coupling hole for coupling with the lamp fixing unit. The lamp fixing member of claim 8, wherein the upper coupling hole is formed at both sides of the lamp cover unit. The lamp fixing member of claim 1, further comprising a diffusion plate support part protruding from an upper surface of the body part. 11. The lamp fixing member of claim 10, wherein the diffuser plate support has a conical shape. The method of claim 10, The lower support plate has a first hole into which the diffusion plate support is fitted, And the upper support plate has a second hole into which the diffusion plate support is fitted. The lamp fixing member of claim 1, further comprising a body coupling portion formed on a bottom surface of the body portion for coupling with a storage container. The lamp fixing member of claim 1, wherein the lower support plate and the upper support plate are made of a silicon material. A storage container formed of a bottom portion and a side portion to form a storage space; A plurality of lamps disposed in parallel with each other on a bottom of the storage container; A diffuser plate disposed above the lamps; And At least one lamp fixing portion coupled to the bottom portion of the storage container, the body portion extending in a direction crossing the lamps, an upper surface of the body portion, and having a groove for fixing the lamp; And a lamp holding member having a lower support plate coupled to a government to fix a lower portion of the lamp, and an upper support plate coupled to the lamp fixing portion to fix an upper portion of the lamp. The backlight assembly of claim 15, wherein the lamp fixing part comprises a coupling part formed at both sides of the groove to be coupled to the lower support plate and the upper support plate. The method of claim 16, wherein the lower support plate At least one lamp support inserted into the groove of the lamp fixing part to support a lower part of the lamp; A lower connection part connecting the lamp support part to each other; And And a lower coupling hole formed at both sides of the lamp supporter to be coupled to the coupling unit of the lamp fixing unit. The method of claim 16, wherein the upper support plate At least one lamp cover portion covering an upper portion of the lamp; An upper connection part connecting the lamp cover part to each other; And And an upper coupling hole formed at both sides of the lamp cover part to be coupled to the coupling part of the lamp fixing part. The method of claim 15, wherein the lamp fixing member A diffusion plate support part protruding from an upper surface of the body part to support the diffusion plate; And The backlight assembly further comprises a body coupling portion formed on the lower surface of the body portion for coupling with the storage container. The method of claim 19, The lower support plate has a first hole into which the diffusion plate support is fitted, And the upper support plate has a second hole into which the diffusion plate support is fitted. The backlight assembly of claim 15, wherein the lower support plate and the upper support plate are made of a silicon material. A backlight assembly for supplying light; A display unit disposed on the backlight assembly to display an image; And A top chassis fixing the display unit, The backlight assembly, Storage Container, A plurality of lamps disposed parallel to each other on the bottom of the storage container, and At least one lamp fixing portion coupled to a bottom portion of the storage container and extending in a direction crossing the lamps, the upper surface of the body portion having a groove for fixing the lamp, and the lamp fixing portion And a lamp fixing member coupled to the lower support plate to fix the lower portion of the lamp, and an upper support plate coupled to the lamp fixing portion to fix the upper portion of the lamp.

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