KR100805400B1 - Cooling apparatus for use in flat display device - Google Patents

Abstract

The cooling apparatus of the flat display device according to the present invention includes a flat display module; A cover protecting the outside of the flat panel display module; A suction port formed at one side of the cover to suck outside air; An opening formed at one side of the edge of the cover to discharge hot air therein; A fan which is formed in the vicinity of the opening and discharges the hot air sucked from the suction port and heated to the opening; And a plurality of slits formed in the opening to switch the flow direction of the discharged air.

According to the present invention, the flat panel display device becomes thinner, the heat dissipation effect is enhanced, the flow noise is minimized, the air circulation is smoothly performed inside the device, the freedom of installation of the display device is improved, and the cost is reduced. There is an advantage that can be reduced, the viewer's comfort is improved, and the effect on the wall on which the flat panel display device is installed.

display

Description

Cooling apparatus for use in flat display device}

1 is a perspective view of a flat panel display device according to the present invention;

2 is a partial cutaway perspective view of a portion of the upper surface of the back cover of the flat display device of the present invention.

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

4 is a view for explaining the action of the crossflow fan in a state where the flat panel display device according to the present invention is mounted on the wall.

5 is a rear view of the flat panel display device for explaining the operation of the cooling device of the flat panel display device according to the present invention.

6 is a cross-sectional view of an upper portion of a flat panel display device according to a second exemplary embodiment of the present invention.

7 is a cross-sectional view of an upper portion of a flat panel display device according to a third embodiment of the present invention.

8 is a cross-sectional view of an upper portion of a flat panel display device according to a fourth embodiment of the present invention.

9 is a cross-sectional view of an upper portion of a flat panel display device according to a fifth embodiment of the present invention.

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

1: flat display device 2: flat display module

3: front cover 4: back cover

5 back cover side opening 7 cross flow fan

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat panel display device, and more particularly, to a cooling device for a flat panel display device for discharging high heat inside the flat display device to the outside quickly and stably. More specifically, the present invention relates to a cooling device of a flat display device capable of reducing the effect of heat emitted from the inside of the flat display device to the outside on the wall and discomfort to the user.

Unlike general cathode ray tubes, a flat panel display device is a device in which an emission state of each pixel is different from each other by a driving circuit arranged in a matrix form to form an image as a whole. Unlike the cathode ray tube, such a flat panel display device has a small volume, so that the space occupied in a narrow indoor space is small, and thus the use of the flat display device has been increased. The flat panel display module applied to the flat panel display device may be a liquid crystal display (LCD), a field emission display (FED), or a plasma display panel (hereinafter, referred to as "depending on its driving method"). PDP module ”and an Electro-Luminescence (EL) display. Although these display modules are small in volume and can be used for convenience of the user, they are integrated in a narrow flat space, so that heat generated during driving of the module is a major challenge.

In particular, in the PDP device, high temperature heat is generated due to the discharge phenomenon of the discharge gas, electrical components, and the like, and if such heat is not released, the PDP device acts as a major factor causing malfunction or failure of the device. Of course, the flat panel display module driven in another way, the heat dissipation performance of the device limits the performance.

In order to solve the problem related to the cooling of the flat panel display device described above, a conventionally applied method is to attach a relatively large size heatsink to the back surface of a particular heating part in which a large amount of heat is generated to cool a specific part, There is a method of drilling a plurality of holes in the cover of the display device to allow air to communicate with the inside and outside of the flat display device. However, such a method can expect a cooling effect on a specific part that generates high heat, but the device does not operate stably because the process of dissipating heat collected in the internal space of the device to the outside is not performed smoothly. There is this.

In order to improve the above method, an axial fan is installed from the middle of the back cover to the rear in a direction orthogonal to the direction in which the flat display device is formed so that hot air inside the device is forced out of the rear. .

However, although this method can increase the efficiency of the heat accumulated inside the device to the outside, not only does a lot of noise be generated during the air discharge operation, but also the space between the back of the device and the wall for air discharge. There is a problem in that an interval of more than tens of centimeters should be provided. In addition, there is a problem in that the width of the flat panel display module becomes thick due to an interval between the axial fan and the flat panel display module in order to install the axial fan to suck internal air of the device and the spacing of the axial fan itself.

In addition, since a plurality of openings are formed in order to allow the outside air to be sucked or discharged on the surface of the back cover, there is a problem of reducing the strength of the back cover, and due to this strength problem, the material of the back cover should be formed thicker. Therefore, there is a problem of raising the material cost.

In addition, the air discharged from the back of the back cover in the vertical direction is continuously blown toward the wall where the flat panel display device is installed. Thus, the hot air continuously blown discolors the wallpaper, such as discoloring the wallpaper. There is a problem causing discomfort to the user to be different from other parts.

The present invention is proposed to improve the above problems, and an object of the present invention is to provide a cooling device for a flat panel display device which can obtain a thinner and simpler and sufficient heat dissipation effect.

In addition, an object of the present invention is to provide a cooling device for a flat panel display, in which manufacturing cost of the cooling device can be reduced, and flow noise can be minimized.

In addition, it is an object of the present invention to propose a cooling device of a flat panel display device by the air inside the flat panel display device to be discharged to the outside by natural convection, further improving heat dissipation efficiency and further maximize the effect of reducing the noise.

In addition, an object of the present invention is to propose a cooling device of a flat display device, in which a flow direction of air in the flat display device is improved, thereby improving the degree of freedom for installation of the flat display device.

In addition, an object of the present invention is to propose a cooling device of a flat panel display device, in which a portion where hot air is discharged does not directly contact a wall surface, so that other external parts such as a wall surface are not thermally affected.

In addition, an object of the present invention is to propose a cooling device for a flat panel display device which can prevent the air discharged from the flat panel display device from affecting the user.

In order to achieve the above object, a flat display device cooling apparatus according to the present invention includes a flat display module; A cover protecting the outside of the flat panel display module; A suction port formed at one side of the cover to suck outside air; An opening formed at one side of the edge of the cover to discharge hot air therein; A fan which is formed in the vicinity of the opening and discharges the hot air sucked from the suction port and heated to the opening; And a plurality of slits formed in the opening to switch the flow direction of the discharged air.

According to another aspect of the present invention, there is provided a cooling apparatus for a flat panel display device; A front cover protecting a front portion of the flat panel display module; A back cover protecting a rear portion of the flat panel display module; A suction port formed at one side of the back cover to suck outside air; A back cover side opening formed at one side of the edge portion of the back cover to discharge hot air therein; And a cross flow fan formed in the back cover side opening to discharge hot air to the back cover side opening, wherein the cross flow fan includes a cross flow fan impeller rotating in a counterclockwise direction when viewed from the right side of the flat panel display module; A stabilizer placed in front of the crossflow fan impeller; And a scroll lying behind the crossflow fan impeller.

According to the present invention, it is possible to obtain an advantage that the cooling efficiency of the flat panel display device is improved, the flow noise is reduced, and the installation of the flat panel display device can be more freely performed without disturbing the installation of the flat panel display device. There is an advantage that the impact is reduced.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention can easily suggest other embodiments falling within the scope of the same idea, It is said to be included in the range.

<First Embodiment>

1 is a perspective view of a flat panel display device according to the present invention.

Referring to FIG. 1, the flat display device 1 of the present invention includes a flat display module 2, a front cover 3 for supporting and protecting the front of the flat display module 2, and a flat display module 2. A back cover 4 is provided to support and protect the rear of the back panel). In addition, a back cover side opening portion 5 through which hot air inside the flat panel display device 1 is discharged is formed at an upper edge of the belly cover 4.

The flat panel display module 2 may be a module in which pixels are operated in various forms of metrics such as a liquid crystal display, a field emission display, a plasma display panel, and an electroluminescence display. A PDP module in which high heat is generated may be exemplified.

The front cover 3 and the back cover 4 are an article that partitions the exterior and the interior and protects the components mounted therein while the flat display module 2 is accommodated in the interior space as a whole. Although the cover 3 and the back cover 4 are provided as separate items and described in the aspect in which the two are combined, it may be provided in any other form. For example, it is also possible for the front cover 3 and the back cover 4 to be provided as a single article. However, it is natural that the front cover 3 protects the front of the flat display device and the back cover 4 is used for protecting the rear of the flat display device. In addition, a predetermined interval is provided between the inner surface of the back cover 4 and the plurality of heating parts provided on the rear surface of the flat display module 2, and air flows through the gaps to provide the heating parts. Naturally, after cooling, the liquid is discharged through the back cover side opening part 5.

The operation of the cooling apparatus of the present invention will be described with reference to the perspective view of the flat display apparatus described above.

When the flat panel display device 1 is operated, a lot of heat is generated in the flat panel display module 2. In particular, the heat generated from the heat generating parts of the rear surface of the flat panel display module 2 may be caused by air introduced from the outside. After cooling, the hot air is moved upward and then discharged to the outside through the back cover side opening 5. Since the air inside the flat panel display apparatus may be discharged by the natural convection in which the heated air moves upward, the cooling effect may be further enhanced. In order to maximize the cooling effect due to natural convection as described above, the air introduced into the flat display apparatus 1 is introduced into the inside through the lower end of the flat display apparatus 1, thereby the flat display module 2 It is desirable to further improve the cooling efficiency by passing through the rear of the whole.

In addition, the back cover side opening portion 5 is provided at an inclined portion of the edge of the back cover 4 so that the hot air is discharged as it is toward the flow direction (upper direction), so that the flow of the hot air is made more smoothly. There is an advantage.

The back cover side opening portion 5 will be described in more detail. The back cover side opening portion 5 provides a discharge space for hot air as a whole, and the opening portion 5 has a plurality of slits (Fig. 2). 8) is formed and hot air is finally discharged through the slit (8). In addition, the flow direction of the air discharged through the slit 8 can be appropriately switched by the forming direction of the slit 8, and the back cover side opening portion 5 is not opened in a single form, but a plurality of slits. Since finely divided by (8), the overall strength of the back cover 4 can be improved. In addition, the slit 8 is long in the left and right directions of the flat panel display device and is provided in a short shape in the front and rear directions, thereby improving switching performance in the air flow direction.

In addition, since the front surface of the flat panel display module 2 is exposed to the outside, the heat generated from the front surface of the flat panel display module 2 can be quickly released by the outside air and natural convection.

2 is a partially cutaway perspective view of a portion of an upper surface of a back cover of the flat display device of the present invention.

Referring to FIG. 2, a cross flow fan 7 is installed inside the upper surface of the back cover 4 in the longitudinal direction of the display device. As such, the cross flow fan 7 is installed, so that the entire length of the upper surface of the back cover 4 substantially provides a wide interval for discharging hot internal air to the outside.

The configuration of the cross flow fan 7 will be described in more detail. The crossflow fan 7 is a crossflow fan impeller (10: see FIG. 3) and a crossflow fan impeller (10: see FIG. 3) provided in a longitudinal direction in the left and right length direction of the back cover (4) 10: see FIG. 3) and a circular plate 11 is included to reinforce the strength of the crossflow fan impeller 10 (see FIG. 3). In addition, a drive shaft 15 extends at one end of the crossflow fan impeller 10 (see FIG. 3), and a motor 14 is connected to the drive shaft 15.

Further, the crossflow fan impeller 10 (see FIG. 3) is entirely accommodated inside the housing 18 to guide the flow of air during rotation of the crossflow fan impeller 10 (see FIG. 3). 18) includes a scroll 12 formed on one side spaced forward of the crossflow fan impeller 10 (see FIG. 3), and a stabilizer 13 formed on the other side spaced rearward to stabilize the flow of air. . The scroll 12 is placed in front of the crossflow fan impeller 10 (see FIG. 3), and the stabilizer 13 is placed behind the crossflow fan impeller 10 (see FIG. 3), so that the crossflow fan impeller 10 is located. (See FIG. 3) rotates clockwise based on the drawing.

The air discharged from the cross flow fan 7 is discharged by the slit 8 and finally discharged to the outside.

Referring to the cross-sectional view taken along the line II ′ of FIG. 1 shown in FIG. 3, the configuration of the crossflow fan 7 will be described in detail.

After the crossflow fan 7 is rotated in the clockwise direction as described above, the air in the space inside the back cover 4 is moved upward and moved along the scroll 12, and then the back cover side. It is discharged to the outside through the opening 5.

As described, since the crossflow fan 7 is provided long in the longitudinal direction of the upper surface of the back cover 4, a relatively large area can be used as an area for discharging air. Thus, by providing a large discharge area of the high-temperature air can reduce the disturbance in the discharge of air, thereby achieving the advantage of reducing the flow resistance and noise of the air. And, since the hot air is discharged through the upper surface of the back cover 4, there is no need to provide a separate interval for the smooth discharge of the air in the gap portion between the back surface and the wall surface of the back cover (4). Therefore, the flat panel display device of the present invention can be completely attached to the wall surface, and the advantage of occupying a narrow indoor space can be obtained.

However, the air discharged to the outside along the scroll 12 is mainly discharged toward the rear of the flat panel display device 1. Therefore, a large part of the discharged air is discharged toward the wall surface on which the flat panel display device is mounted. In order to improve such a problem, the installation direction may be obliquely inclined in the counterclockwise direction when installing the cross flow fan 7, but this increases the space occupied by the cross flow fan 7, in particular, the front and rear width thereof, It is not preferable because a problem arises in that the front and rear widths of the flat panel display devices are so thick.

In order to improve such a problem, in the present invention, the slit 8 performs the function of a flow switching membrane, and in detail, the silt 8 is inclined obliquely toward the front of the flat panel display device. As a result, the flow direction of the discharged air is bent forward.

4 is a view illustrating the operation of the crossflow fan in a state where the flat panel display device according to the present invention is mounted on a wall. Referring to FIG. 4, a wall surface 100 is placed at the rear of the flat panel display device. The rear surface of the flat panel display device is in close contact with the wall surface 100. Of course, the wall surface may not be a wall, so any support structure may be applied.

When the cross flow fan 7 is rotated in this installation state, the high temperature air inside the display device is discharged to the rear in a state where it is guided by the scroll 12, and the air discharged to the rear is guided by the slit 8. As a result, the flow direction is bent forward. As a result, the hot discharge air is predominantly generated in the upward direction of the flow, thereby reducing the influence on the wall surface 100.

5 is a rear view of the flat panel display device for explaining the operation of the cooling device of the flat panel display device according to the present invention.

Referring to FIG. 5, the back cover 4 further includes a side suction port 16 and a rear suction port 17 for introducing air into the inner space of the back cover 4 in addition to the back cover side opening 5. Is formed.

Referring to the operation of the suction port 16, 17, first, the side suction port 16 is formed in the inclined portion of the lower edge of the back cover 4 so that the external low-temperature air is sucked into the interior space of the flat display device do. Of course, the air sucked through the side suction port 16 is air sucked to compensate for the air discharged through the back cover side opening 5, and is discharged from the flat pressure display and the negative pressure generated by natural convection. Inhaled air to compensate for negative pressure caused by air.

The air sucked through the side suction port 16 is sucked into the crossflow fan 7 after the high heat of a plurality of parts provided on the rear surface of the flat panel display module 2 is cooled as a whole and the back cover side opening 5 In this case, most of the hot air discharged by switching the discharge direction of the air by the slit 8 is discharged directly above the flat display device without being directly blown to the wall surface 100. The action prevails.

In addition, as shown in the figure, the side suction port 16 is formed to cross the left and right directions of the edge of the lower surface of the back cover 4, so that the components of the flat panel display module 2 are in the left and right directions by the air sucked. It is desirable to allow all of them to cool over. Arrows in the figure illustrate the flow direction of air.

Referring to the operation of discharging the hot air inside the back cover 4, the cross flow fan 7 is formed on the entire surface of the upper surface substantially across the left and right directions on the upper surface of the back cover 4 have. Therefore, the low temperature air sucked through the entire length portion in the left and right directions of the lower surface of the back cover 4 is discharged through the upper surface after cooling the heat while raising the entire portion of the inside of the flat panel display device 1 as it is in the vertical direction. Of course, even when the crossflow fan 7 is not provided over the entire length of the upper surface of the back cover 4, the flow resistance of the air increases to some extent, and there is no difference in the practical idea of the present invention.

On the other hand, among the components of the flat panel display module 2, in particular, a component (for example, a power supply) that generates high heat, and a component that requires a low temperature condition (for example, a TCP chip (Tape Carrier Package Chip), etc.) A component having a plurality of integrated circuit elements mounted on a single substrate at a high density. In order to satisfy such component-specific operating conditions, it is preferable that a component requiring thermal stability is formed at an adjacent position of the side suction opening 16 to be quickly cooled by cold air flowing into the outside. In addition, in the case of a component in which a large amount of heat is generated, it is preferable that the generated heat is formed at an adjacent position of the crossflow fan 7 so that the generated heat can be quickly discharged to the outside without affecting other circuit parts.

In addition, the rear suction port 17 may be used in a case where the position of the component does not change due to the circuit arrangement of the flat panel display module 2 and must be placed at a specific position. In other words, the rear suction port 17 is formed at a position on the back cover 4 corresponding to a specific position of the flat display module 2 on which the heat generating article is disposed, so that the outside air directly through the rear suction port 17. It may be used for the purpose of cooling the heat generating article by the incoming low temperature air. However, the rear suction port 17 is not an essential component for the practice of the present invention, and in the case where the position of the heat generating article can be adjusted, the adjacent position of the side suction port 16 or the adjoining the cross flow fan 7 is provided. The position of the heat generating article may be moved to a position so that a separate rear suction port 17 is not required.

Second Embodiment

The other part of the cooling apparatus of the flat panel display device according to the second embodiment of the present invention is the same as the first embodiment, except that the structure of the slit is different. Therefore, for the parts not specifically mentioned in the description of the present embodiment, the description of the first embodiment is used, and the detailed description is omitted.

6 is a cross-sectional view of an upper portion of a flat panel display device according to a second exemplary embodiment of the present invention.

Referring to FIG. 6, a plurality of curved slits 81 having a curved cross section are formed in the back cover side opening portion 5 of the upper surface of the back cover 4. The curved slit 81 is for reducing the flow resistance of noise that may be generated when the flow direction of air is switched by the slit 8. Therefore, the inclination of the inlet side of the curved slit 81 coincides with the flow direction of the air flowing into the curved slit 81, and then provides the curved slit 81 in a shape that is gradually inclined forward.

By this shape, the guide action of the discharged air can be smoothed and the flow resistance and the noise of the air can be further reduced.

Third Embodiment

The other part of the third embodiment of the present invention is the same as that of the first embodiment, except that there is a difference only in the structure of the slit. Therefore, parts not specifically mentioned in the description of the present embodiment shall be used as the description of the first embodiment as it is.

7 is a cross-sectional view of an upper portion of a flat panel display device according to a third exemplary embodiment of the present invention.

Referring to FIG. 7, a plurality of inclination-variable slits 82 having inclinations are formed in the back cover side opening 5 of the upper surface of the back cover 4. The inclined variable slit 82 corresponds to a direction in which the air discharged from the cross flow fan 7 is relatively upward in the front part of the cross flow fan 7 and relatively backward in the rear part.

Specifically, in the front portion (front of the flat display device) on the discharge side of the crossflow fan 7, the inclination of the inclined variable slit 82 is close to the vertical in order to discharge the high temperature air discharged upward as it is. In the rear portion (rear of the flat display device) on the discharge side of the cross flow fan 7, the inclination of the inclined variable slit 82 is inclined forward to bend the high temperature air discharged backward.

By changing the inclination of the inclined variable slit 82 in this way, it is possible to obtain the advantages of noise generation and air flow resistance to the air discharged from the discharge side of the cross flow fan (7).

Fourth Embodiment

The other part of the fourth embodiment of the present invention is the same as that of the first embodiment, except that only the structure of the slit is different. Therefore, parts not specifically mentioned in the description of the present embodiment shall be used as the description of the first embodiment as it is.

8 is a cross-sectional view of an upper portion of a flat panel display device according to a fourth exemplary embodiment of the present invention.

Referring to FIG. 8, a plurality of curvature-variable curved slits 83 having curvatures are formed in the back cover side opening 5 of the upper surface of the back cover 4. The curvature variable curved slit 83 has a smooth curvature of the slit 83 so that the hot air discharged upward is discharged upward in the front portion (front of the flat display device) on the discharge side of the crossflow fan 7. In the rear portion (rear of the flat display device) on the discharge side of the cross flow fan 7, the curvature of the slit 83 is large so as to bend the hot air discharged to the rear in a forward direction, so that the discharge direction of the discharged air flows. Make it tilt forward a lot. As such, the slopes of the plurality of curvature-variable curved slits 83 vary depending on the position of the slits, thereby generating noise and flow resistance of air generated when switching the flow direction of the air discharged from the discharge side of the crossflow fan 7. This diminishing advantage can be obtained.

In addition to the embodiments described above, an embodiment in which the inclination of the curved slit is changed, and an embodiment in which the curvature and the inclination of the curved slit are changed at the same time may be easily proposed, but this is also included within the scope of the present invention.

Fifth Embodiment

The other part of the fifth embodiment of the present invention is the same as that of the first embodiment, except that only the structure of the slit is different. Therefore, parts not specifically mentioned in the description of the present embodiment shall be used as the description of the first embodiment as it is.

9 is a cross-sectional view of an upper portion of a flat panel display device according to a fifth exemplary embodiment of the present invention.

Referring to FIG. 9, the crossflow fan 7 of the present embodiment has a counterclockwise rotation direction of the crossflow fan when viewed from the right side of the flat display device, and the installation positions of the scroll 12 and the stabilizer 13 are shifted from side to side. It is characterized by being changed.

According to this embodiment, the air discharged from the source may be deflected toward the front of the flat panel display device, that is, forward, without being directed toward the wall surface 100. Therefore, according to the present embodiment, when the flat panel display device 1 is mounted on the wall, it is possible to obtain an advantage of not affecting the wall.

However, when hot air is discharged forward, hot air may reach the viewer and cause discomfort to the viewer. In this case, the slit 8 may bend the air discharge direction backward. Of course, the structure of the slit 8 may be provided in various structures as described in the second to fourth embodiments. For example, the slits 8 may be manufactured in a curved shape, and it may be easily predicted that the slits 8 may be changed in the rearward direction to reduce flow resistance and noise generation.

According to the present invention as proposed, since a separate space for the installation of the blower fan is not required, the flat display device may have a thinner and simpler and sufficient heat dissipation effect.

In addition, as a shape similar to the cross-sectional shape of the flat panel display device, since the discharge port of the hot air is provided, there is an advantage that the flow noise can be minimized while simplifying the structure.

In addition, since the air inside the flat panel display device can be discharged to the outside by natural convection as well as the sound pressure provided from the fan, there is an advantage that the circulation of air in the display device smoothly.

In addition, an object of the present invention is to propose a cooling device of a flat display device, in which a flow direction of air in the flat display device is improved, thereby improving the degree of freedom for installation of the flat display device.

In addition, as the flow rate of air flowing inside the flat display device is increased, a separate opening does not need to be formed on the rear surface of the back cover, so that the steel plate constituting the back cover is expensive to reinforce the strength of the back cover. Since there is no need to make a high strength steel sheet, it is possible to obtain the advantage of reducing the material cost.

In addition, since the discharge direction of the discharged hot air can be directed to a desired direction, the viewer's comfort can be obtained and the influence on the wall surface where the flat panel display device is installed can be reduced.

Claims (8)

Flat panel display modules; A cover protecting the outside of the flat panel display module; A suction port formed at one side of the cover to suck outside air; An opening formed at one side of the edge of the cover to discharge hot air therein; A fan which is formed in the vicinity of the opening and discharges the hot air sucked from the suction port and heated to the opening; And A plurality of slits are formed in the opening to switch the flow direction of the discharged air, The slit is inclined forward to guide the flow of air forward when the air discharged from the fan is deflected to the rear of the flat panel display module and discharged. Cooling apparatus of the flat display device is provided inclined backward to guide the flow of air to the rear when the air discharged from the fan is deflected toward the front of the flat display module. The method of claim 1, The slit is a cooling device of the flat display device having a curved cross section. Flat panel display modules; A cover protecting the outside of the flat panel display module; A suction port formed at one side of the cover to suck outside air; An opening formed at one side of the edge of the cover to discharge hot air therein; A fan which is formed in the vicinity of the opening and discharges the hot air sucked from the suction port and heated to the opening; And A plurality of slits are formed in the opening to switch the flow direction of the discharged air, The cross section of the slit is formed in a curved shape, The curvature radius of the slit of the slit close to the flat display module of the slit is larger than the radius of curvature of the slit far from the flat display module. delete The method according to claim 1 or 3, And the fan is a cross flow fan. The method of claim 5, wherein The cross flow fan is a cooling device of a flat panel display device rotates clockwise or counterclockwise when viewed from the right. Flat panel display modules; A front cover protecting a front portion of the flat panel display module; A back cover protecting a rear portion of the flat panel display module; A suction port formed at one side of the back cover to suck outside air; A back cover side opening formed at one side of the edge portion of the back cover to discharge hot air therein; And A transverse flow fan formed in the back cover side opening to discharge hot air to the back cover side opening; The cross flow fan includes a cross flow fan impeller rotated in a counterclockwise direction when viewed from the right side of the flat panel display module; A stabilizer placed in front of the crossflow fan impeller; And And a scroll placed behind the crossflow fan impeller. The method of claim 7, wherein And a plurality of slits for guiding the air discharged from the cross flow fan to the rear in the opening portion of the back cover side.

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