KR100902073B1 - Liquid crystal display apparatus - Google Patents

Abstract

Disclosed is a liquid crystal display device for improving display quality by suppressing an increase in internal temperature of a liquid crystal display device. A liquid crystal display device includes a liquid crystal display panel for displaying an image, a lamp for generating light for displaying an image and providing the light to the liquid crystal display panel, a bottom chassis and a bottom chassis for accommodating the lamp and the liquid crystal display panel, and a plurality of lamps. And a heat dissipation member disposed between and to transfer heat generated from the lamp to the bottom chassis. Accordingly, the heat dissipation member absorbs heat emitted from the plurality of lamps and releases the heat to the outside through the bottom chassis, thereby suppressing an increase in temperature inside the liquid crystal display and further improving display quality.

Heat dissipation member, heat dissipation, direct type, lamp, storage container, protrusion

Description

Liquid crystal display device {LIQUID CRYSTAL DISPLAY APPARATUS}

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

2 is a cross-sectional view taken along the line A-A 'of FIG.

FIG. 3 is a plan view illustrating the liquid crystal display shown in FIG. 1.

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

5 is a cross sectional view taken along the line BB ′ of FIG. 4.

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

FIG. 7 is a perspective view illustrating the mold frame illustrated in FIG. 6.

8 is a cross-sectional view taken along the line C-C ′ of FIG. 6.

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

100: display unit 200: backlight assembly

210: lamp 220a, 220b, 30a, 30b: lamp socket

230: lamp unit 240: diffuser plate

250: reflector

260a, 260b, 280a, 280b, 70a, 70b: heat dissipation member

270, 290: bottom chassis 300, 350: mold frame

The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device for improving display quality.

Recently, display apparatuses for displaying images have been rapidly developed according to their use and types, and liquid crystal displays having excellent performance and functions among various kinds of display apparatuses are widely used.

In such a liquid crystal display, a liquid crystal display panel displaying an image receives light from a backlight assembly to display an image.

The backlight assembly is classified into a direct type and an edge type according to the position of the light source.

The edge type backlight assembly has a structure in which a lamp unit is disposed on a side of a light guide plate, and is mainly applied to a relatively small liquid crystal display device such as a laptop and a desktop computer. Such an edge type backlight assembly has advantages of good light uniformity, long life, and thinning of a liquid crystal display device.

The direct type backlight assembly has a structure mainly developed as the size of the liquid crystal display device is enlarged, and one or more lamps are arranged under the diffuser plate to irradiate light on the entire liquid crystal display panel. Such a direct type backlight assembly has advantages in that a plurality of lamps may be used in comparison with an edge type backlight assembly to secure high brightness.

However, the liquid crystal display having the direct type backlight assembly uses several lamps, so that the amount of heat generated from the lamps is also increased compared to the edge type.

Therefore, as the temperature increases, the optimum black voltage or white voltage varies so much that a contrast ratio (CR) is severely changed.

In addition, when the temperature is changed, the dielectric anisotropy of the liquid crystal is changed, the kickback voltage is changed, and thus the flicker level is changed. Accordingly, there is a problem that characteristics such as afterimages also vary depending on the temperature.

In addition, if the temperature is severely generated, the retardation value is severely changed, and the image and the color itself may be changed. If the temperature rises above the threshold, the liquid crystal original characteristic is lost, and thus the image cannot be represented.

Accordingly, the present invention has been made in an effort to solve the conventional problems, and an object of the present invention is to provide a liquid crystal display device for improving display quality by dissipating heat inside the liquid crystal display device.

According to an aspect of the present invention, there is provided a liquid crystal display device comprising: a liquid crystal display panel for displaying an image using liquid crystal; A lamp for generating light for displaying the image and providing the light to the liquid crystal display panel; A first accommodating container for accommodating the lamp and the liquid crystal display panel; And a heat dissipation member disposed between the first accommodating container and the lamp and disposed at at least one end of the lamp to transfer heat generated by the driving of the lamp to the first accommodating container. .

According to the liquid crystal display device, the heat dissipation member absorbs heat emitted from the plurality of lamps and releases the heat to the outside through the storage container, thereby suppressing a rise in temperature inside the liquid crystal display device and further improving display quality. You can.

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

1 is an exploded perspective view of a liquid crystal display according to an exemplary embodiment of the present invention, and FIG. 2 is a cross sectional view taken along the line A-A 'of FIG. 1.

1 and 2, the liquid crystal display 500 may store a display unit 100 displaying an image, a backlight assembly 200 providing light to the display unit 100, and a display unit 100. A mold frame 300 and a top chassis 400 are provided.

The display unit 100 includes a liquid crystal display panel 110 for displaying an image with liquid crystal, a data side and gate side tape carrier package (TCP) 120 and 125, and a data and gate printed circuit board 130. , 135).

In more detail, the liquid crystal display panel 110 includes a thin film transistor substrate (TFT) 111 for displaying pixels, a color filter substrate 112 and a TFT substrate 111 facing each other. ) And a liquid crystal layer (not shown) injected between the color filter substrate 112.

The TFT substrate 111 is a transparent glass substrate on which a switching element TFT (not shown) is formed in a matrix form.

The color filter substrate 112 provided to face the TFT substrate 111 is a substrate in which RGB pixels, which are color pixels expressed in a predetermined color by light passing through, are formed by a thin film process.

Then, the data side TCP 120 for determining the timing of applying the data driving signal is attached to the source side of the TFT substrate 111 on which the data line is formed, and the gate driving signal is applied to the gate side of the TFT substrate 111 on which the gate line is formed. A gate side TCP 125 is attached to determine the timing.

The data side TCP 120 has one side attached to the TFT substrate 111 and the other side attached to the data printed circuit board 130 to electrically connect the liquid crystal display panel 110 to the data printed circuit board 130. .

The gate side TCP 125 has one side attached to the TFT substrate 111 and the other side attached to the gate printed circuit board 135 to electrically connect the liquid crystal display panel 110 to the gate printed circuit board 130. Connect

Accordingly, the data and gate printed circuit boards 130 and 135 receive electrical signals from the outside and apply them to the data side and gate side TCPs 120 and 125, respectively, and the data side and gate side TCPs 130 and 135 A driving signal and a timing signal for controlling the driving and driving timing of the liquid crystal display panel 110 are applied to the liquid crystal display panel 110.                     

Meanwhile, the backlight assembly 200 positioned below the display unit 100 may include a lamp unit 230 that generates a first light for displaying an image and the first light as a second light having a uniform luminance distribution. A diffuser plate 240 for converting and emitting the light, a reflector plate 250 for reflecting the light leaked from the lamp unit 230 to the diffuser plate 240, and a heat source for emitting heat generated by the lamp unit 230 to the outside. Heat dissipation members 260a and 260b and a bottom chassis 270.

In detail, the lamp unit 230 fixes the plurality of lamps 210 and the plurality of lamps 210 to generate light, and receives a plurality of lamps 210 by receiving power from the outside for driving the lamps 210. And first and second lamp sockets 220a and 220b to be applied thereto.

The first and second lamp sockets 220a and 220b extend in a first direction D1, which is a direction in which the plurality of lamps 210 are arranged, and the base substrate 221 and the base substrate for coupling with the mold frame 300. It extends from 221, and includes a plurality of clip portion 222 for fixing the lamp 210 by inserting both ends (211, 212) of the plurality of lamps 210. In this case, the plurality of clip parts 222 protrude from the base substrate 221 in the second direction D2, which is the bottom chassis 270 direction.

The first and second lamp sockets 220a and 220b are made of a conductive material and are disposed in the first direction.

The lamp unit 230 generates the first light for displaying the image by the power supplied from the outside and provides the first light to the diffusion plate 240.

In addition, the diffusion plate 240 positioned above the lamp unit 230 diffuses the first light to emit the second light having the uniform luminance distribution to the liquid crystal display panel 110.

The reflecting plate 250 positioned below the lamp unit 230 reflects the first light leaked from the diffusion plate 240 to the diffusion plate 240.

The bottom chassis 270 disposed below the reflective plate 250 may include a reflective plate 250, a lamp unit 230, and first and second heat dissipating members 260a in a storage space defined by a bottom surface and sidewalls surrounding the bottom surface. 260b) and is made of a hard and light metal material such as aluminum.

The first and second heat dissipation members 260a and 260b respectively disposed between the both ends 211 and 212 and the bottom chassis 270 of the plurality of lamps 210 may include the bottom chassis 270 and the both ends 211,. Prevents air layer formation between 212 and between two adjacent lamp ends and also prevents air layer formation between contact surfaces with the first and second lamp sockets 220a, 220b.

The first heat dissipation member 260a according to the present invention is mounted on the bottom surface of the bottom chassis 270 and extends from the first flat portion 261a and the first flat portion 261a extending in the first direction in the lamp arrangement direction. It includes a plurality of protruding first projections (262a). In this case, the first protrusion 262a is formed in the first direction and is positioned between the first ends 211 of two adjacent lamps 210.

The second heat dissipation member 260b is formed in the same structure as the first heat dissipation member 260a, and is mounted on the bottom surface of the bottom chassis 270 and extends in the first direction in the lamp arrangement direction 261b. And a plurality of second protrusions 262b protruding from the second flat portion 261b. At this time, the second protrusion 262b is located between the second ends 212 of the two adjacent lamps 210.

That is, the first and second heat dissipation members 260a and 260b are disposed to correspond to both ends 211 and 212 of the plurality of lamps 210, and the first and second protrusions 262a and 262b are adjacent to each other. It protrudes into the area between the arranged lamps. Thus, the first and first projections 262a and 262b are located between both ends of the adjacent lamps, respectively.

The first and second heat dissipation members 260a and 260b are made of a synthetic resin, which is a conductive material, and examples thereof include rubber, polyvinyl chloride (PVC), and silicon bonding material. In particular, a material made of a combination of a silicon (Si) gel and an inorganic material has more flexible properties than rubber, has excellent thermal conductivity, and can be attached to the bottom chassis 270 without a special fixing member.

On the other hand, the diffusion plate 240 is seated on the step 271 formed on the side wall of the bottom chassis 270.

The mold frame 300 for accommodating the liquid crystal display panel 110 is seated on the diffusion plate 240 to be coupled to the bottom chassis 270.

The mold frame 300 includes an opened bottom surface and sidewalls surrounding the bottom surface, and the base substrate 221 of the first and second lamp sockets 220a and 220b is coupled to the bottom surface of the bottom surface, respectively. In this case, the first and second lamp sockets 220a and 220b are coupled to opposite sides of the rear surface, and the clip portions 222 of the first and second lamp sockets 260a and 260b are bottom chassis 270. It is coupled to face the bottom surface of, ie, the clip portion 222 is coupled to face the second direction (D2).                     

The liquid crystal display panel 110 is mounted on the bottom surface of the mold frame 300, and a top chassis 400 is provided thereon.

The top chassis 400 has an upper surface and has a cramp shape. The top chassis 400 covers the liquid crystal display panel 110 so that an effective image area in which an image is displayed is opened, thereby combining the liquid crystal display panel 110 with a mold frame ( To 300).

As described above, the liquid crystal display 500 according to the present invention minimizes the air layer between the lamp 210 and the bottom chassis 270 and two adjacent lamps through the first and second heat dissipation members 260a and 260b. The display quality may be improved by absorbing heat emitted from the plurality of lamps 210 and emitting the heat to the outside through the bottom chassis 270.

FIG. 3 is a plan view illustrating the liquid crystal display shown in FIG. 1. However, the structure of the first and second lamp sockets 220a and 220b is omitted in order to clearly show the positions of the first and second heat dissipation members 260a and 260b.

1 and 3, the first and second heat dissipation members 260a and 260b are disposed at the first and second ends 211 and 212 of the plurality of lamps 210, respectively. Here, each of the plurality of lamps 210 is an external electrode fluorescent lamp (EEFL) having external electrodes formed at both ends of the lamp tube, and electrodes are formed at the outer portions of the first and second ends 211 and 212. To receive power from the outside.

In this case, voltages for driving the plurality of lamps 210 are applied to the first and second ends 211 and 212, so that the first and second ends 211 and 212 are compared with other portions of the lamp 210. The most heat is generated.                     

Thus, for efficient heat dissipation, the first and second heat dissipation members 260a and 260b are disposed at the first and second ends 211 and 212, which generate the most heat, respectively.

The remaining area of the lamp 210 except for the first and second ends 211 and 212 in which the electrodes are formed is an effective light emitting area in which light is generated, and a reflector 250 is seated under the effective light emitting area. .

Accordingly, the first and second heat dissipation members 260a and 260b overlap the first and second end portions 211 and 212 of the plurality of lamps 210 when viewed from the liquid crystal display panel 110 side, and are effective. It is arrange | positioned so that it may not overlap with a light emitting area.

In the above-described embodiment of the present invention, each of the plurality of lamps 210 shows an external electrode fluorescent lamp having external electrodes at both ends of the lamp tube, but has an external electrode at one end of the lamp tube and an internal electrode at the other end. It is apparent that an external inner electrode fluorescent lamp (EIFL) or an internal electrode fluorescent lamp having an internal electrode in the lamp tube, that is, a cold cathode fluorescent lamp (CCFL), may be used.

4 is an exploded perspective view of a liquid crystal display according to another exemplary embodiment of the present invention, and FIG. 5 is a cross sectional view taken along the line BB ′ of FIG. 4.

4 and 5, the liquid crystal display 600 according to another exemplary embodiment of the present invention is illustrated in FIG. 1 except for the first and second heat dissipation members 280a and 280b and the bottom chassis 270. It has the same configuration as the liquid crystal display device 500 according to an embodiment of the present invention. That is, in the description of another embodiment according to the present invention illustrated in FIG. 4, the same reference numerals are given to components that perform the same function as the liquid crystal display device illustrated in FIG. 1, and a separate description for the function will be given. Omit.

As shown in FIG. 4 and FIG. 5, the liquid crystal display device 600 includes a display unit 100 for displaying an image, a backlight assembly 200 for providing light for displaying an image to the display unit 100, A mold frame 300 and a top chassis 500 are provided.

In more detail, the backlight assembly 200 may include a lamp unit 230 for generating a first light for displaying an image, and a diffusion plate for converting the first light into a second light having a uniform luminance distribution and emitting the light. 240, a reflector 250 reflecting the light leaked from the lamp unit 230 to the diffuser plate 240, heat dissipation members 280a and 280b for dissipating heat generated by the lamp unit 230 to the outside, and A bottom chassis 290.

The bottom chassis 290, which is a storage container, protrudes from a bottom surface 291 and a side wall including a bottom surface 291 and a stepped portion 293 for enclosing the bottom surface 291 and seating the diffusion plate 240. A plurality of heat dissipation protrusions 294a and 294b formed on both sides of the surface 291 facing each other are included.

Specifically, the plurality of heat dissipation protrusions 294a and 294b may include a plurality of first heat dissipation protrusions 294a and a plurality of first heat dissipation protrusions 294a formed to correspond to the first ends 211 of the plurality of lamps 210. And a plurality of second heat dissipation protrusions 294b facing each other and formed to correspond to the second ends 212 of the plurality of lamps 210.

That is, the plurality of first and second heat dissipation protrusions 294a and 294b are formed in the first direction D1, which is a direction in which the plurality of lamps 210 are arranged.                     

At this time, each of the first and second heat dissipation protrusions 294a and 294b protrudes into an area between lamps arranged adjacent to each other. That is, each of the first heat dissipation protrusions 294a is positioned between the first ends 211 of two lamps adjacent to each other among the plurality of lamps 210 arranged in the first direction D1, and each second heat dissipation portion 294a is disposed. The protrusion 294b is positioned between the second ends 212 of two lamps adjacent to each other among the plurality of lamps 210 arranged in the first direction D1.

Meanwhile, the heat dissipation members 280a and 280b have a flat shape, and the first heat dissipation member 280a and the second heat dissipation member 280b for transferring heat generated from the plurality of lamps 210 to the bottom chassis 290. It includes.

Specifically, the first heat dissipation member 280a is seated on one side of the bottom chassis 290 on which the plurality of first heat dissipation protrusions 294a are formed, and the second heat dissipation member 280b has the second heat dissipation protrusions 294b formed thereon. It is seated on the other side of the bottom chassis 290.

Accordingly, the first end 211 of the plurality of lamps 210 may have an area except the side facing the base substrate 221 by the two adjacent first heat radiating protrusions 294a as the first heat radiating member 280a. Will be surrounded. In addition, the second end portion 212 of the plurality of lamps 210 may also have an area except the side facing the base substrate 221 by the two adjacent second heat dissipation protrusions 294b as the second heat dissipation member 280b. Will be surrounded.

The first and second heat dissipation members 280a and 280b also have excellent thermal conductivity, and are made of a material made of a combination of a silicon (Si) gel and an inorganic material that can be attached to the bottom chassis 290 without a special fixing member. It may also be formed of a synthetic resin of a similar conductive material.

As described above, the liquid crystal display 600 according to another exemplary embodiment of the present invention forms a plurality of first and second heat dissipation protrusions 294a and 294b on both sides of the bottom chassis 290, respectively. The first and second heat dissipation members 280a and 280b are disposed on both sides of the first and second heat dissipation protrusions 294a and 294b. Accordingly, the air layer between the lamp 210 and the bottom chassis 290 and between two lamps adjacent to each other is minimized, and the heat emitted from the plurality of lamps 210 is absorbed and discharged to the outside through the bottom chassis 290. Therefore, the display quality of the liquid crystal display device 600 can be improved.

6 is an exploded perspective view of a liquid crystal display according to another exemplary embodiment of the present invention, FIG. 7 is a perspective view illustrating a mold frame shown in FIG. 6, and FIG. 8 is a cross-sectional view taken along the line C-C ′ of FIG. 6. to be.

6 to 8, the liquid crystal display 700 according to another exemplary embodiment of the present invention is illustrated in FIG. 1 except for the mold frame 300 and the first and second heat dissipation members 40a and 40b. It has the same configuration as the liquid crystal display 500 according to an embodiment of the present invention shown. That is, in the description of another embodiment according to the present invention illustrated in FIG. 6, the same reference numerals are given to components that perform the same function as the liquid crystal display device 500 illustrated in FIG. A separate description is omitted.

As shown in FIG. 6, the liquid crystal display 700 includes a display unit 100 for displaying an image, a backlight assembly 200 for providing light for displaying an image to the display unit 100, and a mold frame ( 350 and a top chassis 500.                     

More specifically, the backlight assembly 200 may include a lamp unit 230 that generates a first light for displaying an image, and a diffuser plate for converting the first light into a second light having a uniform luminance distribution and emitting the light. 240, a reflection plate 250 for reflecting light leaked from the lamp unit 230 to the diffusion plate 240, heat dissipation members 70a and 70b for dissipating heat generated by the lamp unit 230 to the outside, and A bottom chassis 270.

In detail, the lamp unit 230 fixes the plurality of lamps 210 and the plurality of lamps 210 to generate light, and receives a plurality of lamps 210 by receiving power from the outside for driving the lamps 210. And first and second lamp sockets 30a and 30b to be applied thereto.

The first and second lamp sockets 30a and 30b extend in a first direction D1, which is a direction in which the plurality of lamps 210 are arranged, and the base substrate 31 and the base for coupling with the bottom chassis 270. It extends from the substrate 31, and includes a plurality of clip portion 32 for fixing the lamp 210 by inserting both ends (211, 212) of the plurality of lamps (210). In this case, the plurality of clip parts 32 protrude in the second direction D3, which is a direction of the liquid crystal display panel 110.

The first and second lamp sockets 30a and 30b are made of a conductive material and are disposed in the first direction, which is the direction in which the lamps 210 are arranged.

Meanwhile, the heat dissipation members 70a and 70b have a flat shape, and the first heat dissipation member 70a and the second heat dissipation member 70b for transferring heat generated from the plurality of lamps 210 to the bottom chassis 270 are provided. Include.

Specifically, the first heat dissipation member 70a is interposed between the bottom chassis 270 and the base substrate 31 of the first lamp socket 30a, and the second heat dissipation member 70b is formed of the bottom chassis 270 and the first chassis. It is interposed between the base substrate 31 of the two lamp sockets 30b.

In this case, when the first and second lamp sockets 30a and 30b directly contact the bottom chassis 270, the contact resistance is increased to transfer heat generated from the plurality of lamps 210 to the bottom chassis 270. It is difficult to release to the outside. That is, an air layer is formed between the first and second lamp sockets 30a and 30b and the bottom chassis 270, which makes heat transfer difficult.

Accordingly, in another embodiment of the present invention, the contact resistance is reduced by interposing the first and second heat dissipation members 70a and 70b between the lamp sockets 30a and 30b and the bottom chassis 276 to form the air layer. By preventing the heat, heat generated from the plurality of lamps 310 may be efficiently transferred to the bottom chassis 270.

The reflecting plate 250, the heat dissipation members 70a and 70b, and the lamp unit 230 are accommodated in the bottom surface of the bottom chassis 270, which is a storage container, and the diffusion plate is provided in the step 271 formed on the side wall of the bottom chassis 270. 240 is seated.

The mold frame 300 for accommodating the liquid crystal display panel 110 is seated on the diffusion plate 240 to be coupled to the bottom chassis 270.

Referring to FIG. 7, the mold frame 350 according to the present invention has a bottom surface 351 and a sidewall 352 and a bottom surface 351 surrounding the bottom surface 351 and the bottom surface 351 on which the liquid crystal display panel 110 is mounted. And a plurality of first and second heat dissipation protrusions 353a and 353b which protrude from the rear surface of the back side) and are formed at positions corresponding to the first and second lamp sockets 30a and 30b. In addition, the mold frame 350 according to the present invention is made of a plastic material of a synthetic resin material and is easy to absorb heat generated from the plurality of lamps 210.

Specifically, each of the first and second heat dissipation protrusions 353a and 353b protrudes into an area between lamps arranged adjacent to each other. That is, the first heat dissipation protrusion 353a is interposed between the first ends 211 of the two lamps 210 adjacent to each other, and the second heat dissipation protrusion 353b is the second end of the two lamps 210 adjacent to each other. It is interposed between 211.

Accordingly, the plurality of first and second heat dissipation protrusions 353a and 353b reduce the formation of an air layer existing between the ends 211 and 212 of the two adjacent lamps 210, and thus, the plurality of first and second heat dissipation protrusions 353a and 353b may be formed. By effectively absorbing heat emitted from the first and second ends 211 and 212 and transferring the heat to the top chassis 500, the heat may be emitted to the outside of the liquid crystal display device 800.

As described above, another liquid crystal display device 800 according to the present invention includes the first and second heat dissipation members 70a and 70b between the first and second lamp sockets 30a and 30b and the bottom chassis 270. By interposing, heat generated by the plurality of lamps 210 is released to the outside. In addition, the plurality of lamps 210 are provided by interposing a plurality of first and second heat dissipation first and second heat dissipation protrusions 353a and 353b of the mold frame 350 between two adjacent lamp terminals 211 and 212. The heat generated by the heat is released to the outside.

Therefore, the heat generated by the plurality of lamps 210 is transferred to the heat through the first and second heat dissipation members 70a and 70b and the first and second heat dissipation protrusions 353a and 353b of the mold frame 350. The display quality can be improved by efficiently releasing and suppressing the temperature rise inside the liquid crystal display device 800.                     

Although described above with reference to the embodiments, those skilled in the art can be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims below. I can understand.

As described above, according to the present invention, in a liquid crystal display device having a direct type backlight assembly, the heat dissipation is provided by interposing a heat dissipation member between a plurality of lamps and a storage container accommodating the plurality of lamps and between two adjacent lamps. The member may absorb the heat generated by the plurality of lamps and release it to the outside.

Therefore, it is possible to prevent the temperature rise inside the liquid crystal display device due to the heat generated by the plurality of lamps, thereby preventing color deterioration due to the temperature rise, and preventing the deformation of the plurality of sheets. The display quality of the liquid crystal display device can be improved.

Claims (8)

A liquid crystal display panel for displaying an image using a liquid crystal; A lamp for generating light for displaying the image and providing the light to the liquid crystal display panel; A lamp socket to fix the lamp and to apply power to the lamp to drive the lamp; A first accommodating container for accommodating the lamp, the lamp socket fixing the lamp, and the liquid crystal display panel; And The first storage container is provided separately from the lamp socket, disposed between the first storage container and the lamp, and disposed continuously at at least one end of the lamp to generate heat generated by driving the lamp. Liquid crystal display comprising a heat dissipation member for transmitting to. The method of claim 1, wherein the heat dissipation member, A flat member extending in the arrangement direction of the lamp; And And at least one protrusion member protruding from the flat member as an area between lamps arranged adjacent to each other. The method of claim 1, wherein the first storage container, Bottom surface; A side wall surrounding the bottom surface and including a step for mounting the diffuser plate; And And a heat dissipation protrusion protruding from the bottom surface corresponding to the heat dissipation member, And the heat dissipation protrusions protrude to areas between lamps arranged adjacent to each other. The display apparatus of claim 1, further comprising a second storage container accommodated in a space defined by the first storage container to fix the liquid crystal display panel. The second storage container, A bottom surface on which the liquid crystal display panel is mounted; A side wall surrounding the bottom surface and guiding a position of the liquid crystal display panel; And And a plurality of protrusions protruding from the bottom surface toward an area between lamps arranged adjacent to each other and formed at positions of the heat dissipation members. The liquid crystal display device according to claim 4, wherein the second housing container is made of synthetic resin. The liquid crystal display of claim 1, wherein the heat dissipation member is made of a synthetic resin. 7. The liquid crystal display device according to claim 6, wherein the heat dissipation member is formed of a combination of a silicon gel and an inorganic material. The liquid crystal display device according to claim 1, wherein the first accommodation container is made of a metal material.

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