KR100669736B1 - Plasma display apparatus - Google Patents

Abstract

An object of the present invention is to reduce heat by efficiently dissipating heat generated by a switching element that controls an electrical signal applied in a plasma display panel, and to consume vibration energy generated by the switching element.

In order to achieve this object, the present invention extends to intersect the plurality of discharge cells which are spaces for causing discharge therein, the plurality of sustain electrode pairs crossing the discharge cells and the sustain electrode pair in the discharge cells. Plasma display panel having an address electrode intersecting the discharge cells to implement an image, a chassis supporting the plasma display panel, and a sustain electrode pair disposed at the rear of the chassis and provided in the rear of the chassis. A plurality of switching elements for controlling an electrical signal applied to the plurality of switching elements, the switching elements being attached to at least one surface to dissipate heat generated by the switching elements, and disposed on a surface opposite to the surface to which the switching elements are attached. A plurality of heat sinks having a plurality of heat dissipation wings, and to cover the heat sinks And a noise plate to reduce noise generated by the switching element, wherein at least one pair of the heat sinks of the plurality of heat sinks is in a direction facing each other on a surface where the heat dissipation blades of the heat sinks are arranged. Provided is a plasma display device which is arranged.

Description

 Plasma display apparatus

1 is an exploded perspective view showing a plasma display device of a first embodiment of the present invention;

2 is a perspective view showing a Y electrode driver for controlling an electrical signal applied to the Y electrode of the plasma display device of the first embodiment of the present invention;

3 is a perspective view showing an X electrode driver for controlling an electrical signal applied to the X electrode of the plasma display device of the first embodiment of the present invention;

4 is an exploded perspective view of a plasma display panel of the plasma display device according to the first embodiment of the present invention;

5 is a cross-sectional view taken along the line VV of the plasma display device of the first embodiment of the present invention;

Fig. 6 is a perspective view showing the Y electrode driving portion of the second embodiment of the present invention;

Fig. 7 is a perspective view showing the X electrode driving portion of the second embodiment of the present invention;

8 is a perspective view for explaining the difference between the surface area when the heat-dissipating blade has curvature and when it is not;

9 is a cross-sectional view of the plasma display device of the present invention taken along the line VII-VII.

<Description of Symbols for Major Parts of Drawings>

1: plasma display device

30: chassis 31: X electrode connection cable

32: Y electrode connecting cable 33: Address electrode connecting cable

60: sound absorbing plate provided in the Y electrode drive unit

65: sound absorbing plate provided in the X electrode drive unit

70: Y electrode switching element 75: X electrode switching element

80, 280: heatsink

82, 282: heat-emitting wings

100: plasma display panel 130: address electrode driver

140, 240: Y electrode driver 150, 250: X electrode driver

The present invention relates to a plasma display device, and more particularly, to heat radiation and noise reduction of a switching element for controlling an electrical signal applied to a pair of sustain electrodes of a plasma display panel.

Plasma display panels are devices that display images using gas discharge phenomena, and are excellent in various display abilities such as display capacity, brightness, contrast, afterimage, viewing angle, etc., and are being spotlighted as devices that can replace CRTs. In such a plasma display panel, a discharge is generated in a discharge cell filled with a discharge gas by a direct current or an alternating voltage applied between electrodes, and ultraviolet rays emitted from the discharge gas excite the phosphor to emit visible light, thereby realizing an image. do.

The plasma display panel adopts a discharge mechanism that emits light by applying a high voltage to the discharge cells as light emitting means, and discharges the discharge cells of the plasma display panel by applying a predetermined potential to the sustain electrode pairs and the address electrodes. Drive the display panel. In this case, since the potential applied to the electrode is controlled in correspondence with the image signal received from the outside, the switching element for controlling the electrical signal applied to the sustain electrode pairs of the plasma display panel performs a large amount of switching work for a short time. do. This switching operation generates considerable heat and vibration in the switching elements. At this time, since the switching element is formed of a semiconductor element such as silicon (Si) or germanium (Ge), the electrical characteristics of the switching element are greatly affected by heat. Therefore, if the heat generated by the switching element is not sufficiently released, the heat may cause the switching element to malfunction or lose its function. Therefore, heat dissipation of the switching element is a very important problem.

On the other hand, the vibration generated by the switching element at this time, which is generated by the switching operation of the switching element, causes the air to vibrate or is transmitted to another object to generate considerable noise while vibrating the air. At this time, the noise generated by the switching element may be an important factor among the criteria for determining the quality of the consumer, considering the general use of the plasma display panel used as a home display device, thereby improving the market competitiveness of the plasma display panel. To ensure that noise must be reduced to an appropriate level.

The present invention solves the above problems, efficiently dissipates heat generated from a switching element for controlling an electrical signal applied to the sustain electrode pair of the plasma display panel, and the vibration energy generated from the switching element is sufficiently consumed. It aims to reduce noise by making it possible.

In order to achieve the above object, the present invention provides a plurality of discharge cells, which are spaces for generating discharge therein, a plurality of sustain electrode pairs crossing the discharge cells, and crossing the sustain electrode pair in the discharge cells. A plasma display panel having an address electrode extending across the discharge cells to implement an image, a chassis supporting the plasma display panel, and a sustain electrode disposed at the rear of the chassis and disposed at the rear of the chassis; A plurality of switching elements for controlling electrical signals applied to the pairs, and on the side opposite to the side on which the switching element is attached, to which the switching element is attached, to dissipate heat generated by the switching elements. A plurality of heat sinks having a plurality of heat dissipation blades disposed therein, and the heat sinks It is disposed so as to cover, and provided with a noise plate to reduce the noise generated in the switching element, at least one pair of the heat sink of the plurality of heat sinks facing each other facing the surface on which the heat dissipation blades of the heat sink is arranged Provided is a plasma display device, characterized in that arranged in the direction.

In the plasma display device of the present invention, the vibration generated from the switching element is transmitted to the heat sink, and the heat dissipation blades provided by the heat sink are vibrated, and the sound waves generated by the vibration are repeatedly applied to the heat dissipation wing. The energy generated by the switching element is reduced by consuming energy.

In this case, the heat dissipation vane provided in each of the heat sinks disposed in the direction facing each other is preferably disposed to cross each other, whereby sound waves originating in the switching element collide with the heat dissipation vane. The probability of doing so increases, which makes it possible to further reduce noise.

On the other hand, in the plasma display device of the present invention, it is preferable that at least one of the plurality of heat emitting vanes is formed to have a predetermined curvature. In this case, it is preferable that the heat dissipation vane extend in a cross section in a specific direction so as to have a predetermined curvature on one surface of the heat sink. Further, it is more preferable that the heat dissipation vanes intersecting each other are arranged to surround each other in the direction in which the center of the curvature faces each other.

At this time, the surface area in contact with the air of the heat sink is further increased due to the shape change of the heat-dissipating wing, thereby facilitating heat exchange between the outside air and the heat sink, thereby efficiently dissipating heat generated by the switching element. In addition, it is possible to further increase the probability that the sound waves originating in the switching element may collide with the heat-emitting blades.

Meanwhile, in the plasma display device of the present invention, a printed circuit board is disposed on a rear surface of the chassis, the switching element is electrically connected to the printed circuit board, and the heat sink is disposed on the circuit board. Do.

In the plasma display device of the present invention, it is preferable that an elastic thermal conductive material is disposed between the silencer and the heat sink.

The sustain electrode pair includes an X electrode and a Y electrode, the X electrode is a common electrode, the Y electrode is a scan electrode, and the switching elements are X electrode switching elements for controlling an electrical signal applied to the X electrode. And Y electrode switching elements for controlling an electrical signal applied to the Y electrode.

Hereinafter, the plasma display device 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 4. The plasma display device according to the present invention uses a front cabinet 10 having a window 11 formed at the front, and a rear surface of the front cabinet 10 to form a phosphor layer by using ultraviolet rays generated during discharge in response to an external image signal. Plasma display panel 100 for realizing an image by emitting light, electromagnetic wave blocking is attached to the front surface of the plasma display panel to block the electromagnetic waves generated during operation of the plasma display panel and harmful to humans and may cause malfunction of other electronic devices The film 112 is provided. In this case, the electromagnetic wave blocking film 112 is not necessarily attached to the front surface of the plasma display panel, and may be separately fixed to the front cabinet by combining with the tempered glass. In this case, the filter holder is fixed to the rear of the front cabinet, the filter coupled to the electromagnetic wave blocking film and the tempered glass may be fixed to the filter holder.

In addition, the plasma display apparatus includes a chassis 30 that supports the plasma display panel 100 and is formed of aluminum or the like having good thermal conductivity. The chassis discharges heat conducted from the plasma display panel to prevent the temperature of the plasma display panel from rising above an appropriate level, and prevents the plasma display panel from being deformed by heat or damaged by external impact. In order to support the plasma display panel, the plasma display panel is disposed behind the plasma display panel 100. The plasma display panel 100 and the chassis 30 may be attached by a double-sided tape (not shown).

On the other hand, since the chassis 30 must support the plasma display panel as described above to prevent the plasma display panel from being deformed or damaged, the chassis 30 must have sufficient rigidity. In order to reinforce the rigidity, the plasma display apparatus includes reinforcing members 40 and 41 disposed on a rear surface opposite to a surface supporting the plasma display panel of the chassis to reinforce the rigidity of the chassis.

Meanwhile, the reinforcing members 40 and 41 may be simply used as a means for reinforcing the stiffness of the chassis. However, the reinforcing members 40 and 41 may be integrated circuit chips on any one surface of the reinforcing members in the reinforcing members of some of the reinforcing members. 34 and the address electrode driver 130 including the connection cables 33 electrically connected to the terminals of the integrated circuit chip, the heat generated from the plasma display panel 100 is disposed in the chassis 30. It is possible to prevent the direct conduction to the address electrode driver 130 through the (), and to increase the surface area with air to induce the release of heat generated in the address electrode driver.

In addition, the plasma display apparatus 1 of the present invention is disposed between the chassis and the plasma display panel, and is in contact with the rear surface of the plasma display panel 100 to prevent accumulation of heat generated when the plasma display panel is driven. A heat conductive sheet 115 formed of an aluminum sheet, a copper sheet, a thermal conductive resin, or the like is provided.

In addition, the plasma display apparatus 1 of the present invention is installed at the rear of the chassis 30 and drives the plasma display panel 100, the X electrode driver 150, the Y electrode driver 140, and the address electrode driver ( 130 and a power module 160 for supplying stable power to the driving units 130, 140, and 150.

The Y electrode driver 140 emits heat generated when the Y electrode switching element 70 controls the electrical signal applied to the Y electrode 112 and the Y electrode switching element 70 is driven. The switching element 70 is attached to at least one surface and has a plurality of heat sinks 80 having a plurality of heat dissipation vanes 82. In this case, at least one pair of heat sinks 80a and 80b of the heat sinks may be disposed in a direction facing each other to form a surface on which the heat dissipation blades of the heat sinks are formed. In this case, at least one pair of heat sinks may be arranged. Preferably, the discharge vanes 82a and 82b are formed to intersect with each other.

Through this, the probability that the sound wave originated in the switching element 70 collides with the heat-dissipating wing is increased to consume the mechanical energy, thereby reducing the noise generated in the switching element. . Detailed description will be described later.

Meanwhile, the Y electrode driver 140 is disposed to cover the heat sinks 80 and includes a sound absorbing plate 60 to reduce noise generated by the Y electrode switching element 70. At this time, the sound absorbing plate 60 not only reduces the noise, but also conducts heat transferred to the heat sink to release heat through heat exchange with air, thereby helping to dissipate the switching element 70.

The X electrode driver 150 emits heat generated when the X electrode switching element 75 controls the electrical signal applied to the X electrode 113 and the X electrode switching element 75 is driven. The switching element 75 is attached to at least one surface so as to have a check sink 80 which is the same as the check sink provided in the Y electrode driving unit. In addition, a sound absorbing plate 65 having the same function as the sound absorbing plate 60 provided in the Y electrode driving unit is provided.

 On the other hand, the switching elements (70, 75) is preferably attached to the surface opposite to the surface on which the heat dissipation wings of the heat sink 80 is formed, through which the surface area in contact with air is easy to cool Since the heat generated from the switching elements 70 and 75 is effectively discharged through the heat sink 80, the cooling of the switching element may be smoothly performed.

In addition, when the switching elements 70 and 75 are attached to one surface of the heat sink 80 without being disposed on the printed circuit board 90 disposed on the rear surface of the chassis, the switching elements 70 and 75 are provided. The heat generated from does not affect the plasma display panel 100, so that a temperature is not increased in a local region of the plasma display panel, and the heat of the plasma display panel may prevent the heating of the switching elements 70 and 75. Cooling can be prevented from being disturbed.

In addition, a thermally conductive material 62 having elasticity may be disposed between the heat sink 80 and the sound absorbing plates 60 and 65, whereby vibration transmitted to the heat sink is transferred to the sound absorbing plate. When transmitted, the thermally conductive material has elasticity, thereby attenuating vibration transmitted to the sound absorbing plate, and dissipating heat transmitted to the heat sink to the outside through the sound absorbing plate. On the other hand, matters relating to the heat radiation and noise reduction described above will be described in detail later.

Meanwhile, a printed circuit board 90 is disposed on a rear surface of the chassis, and the switching elements 70 and 75 are electrically connected to the printed circuit board through terminals 72 and 74 of the switching element. It is preferable that the heat sink 80 is disposed on the top surface.

Hereinafter, a plasma display panel provided in the plasma display apparatus of the present invention will be briefly described with reference to FIG. 4. The plasma display panel 100 of the present invention includes a front panel 110 and a rear panel 120, and the front panel 110 includes a front electrode 111 and a Y electrode formed on the rear surface 111a of the front substrate. Sustain electrode pairs 114 including the 112 and X electrodes 113, a front dielectric layer 115 covering the sustain electrode pairs, and a protective film 116 covering the front dielectric layer. Each of the Y electrode 112 and the X electrode 113 includes transparent electrodes 112b and 113b formed of ITO and the like and bus electrodes 112a and 113a made of a metal having high conductivity. The bus electrodes 112a and 113a are connected to the Y electrode connecting cable 32 and the X electrode connecting cable 31 disposed on the left and right sides of the plasma display panel 100.

The rear panel 120 includes a rear substrate 121, address electrodes 122 formed on the front surface 121a of the rear substrate 121 to cross the sustain electrode pair 114, and a rear dielectric layer covering the address electrodes. 123, a partition wall 130 formed in the rear dielectric layer 123 to partition discharge cells 126, which are spaces for generating discharge, and a phosphor layer 125 disposed in the discharge cells. The address electrodes 122 are connected to the address electrode connection cable 33 disposed above and below the plasma display panel.

Meanwhile, the plasma display panel 100 may be driven by various driving methods. In general, the plasma display panel 100 may be driven by a dual address discharge separation (ADS) driving method. In this case, 60 different image frames must be implemented to express a moving image of one second on the plasma display panel. In order to implement such image frames, the ADS driving method includes eight subfields including reset discharge, address discharge, and sustain discharge. One image frame having 256 gradations is implemented by using. At this time, the sustain discharge functions to display the gray scale in the selected discharge cell 126 by using the wall charges accumulated in the discharge cell 126 by the address discharge, so that the X of the sustain electrode pair 114 is used only for the sustain electrode discharge. It is not necessary to apply a separate electrical signal to each of the electrodes and each of the Y electrodes, but since the discharge cell must be selected together with one of the sustain electrode pairs 114 for the address discharge, one of the sustain electrode pairs The electrode of must be a scan electrode, and thus, the Y electrode 113 can be a scan electrode, and in this case, the X electrode 112 is preferably a common electrode.

For this reason, the number of switching elements 70 included in the Y electrode driver for controlling the electrical signal applied to the Y electrode 113 controls the X electrode driver for controlling the electrical signal applied to the X electrode 113. In general, the X electrode driver 150 and the Y electrode driver 140 may have a slight difference.

However, the function of the switching element is not significantly different, and therefore, the problems of heat dissipation and noise reduction occur in both the X electrode switching element 75 and the Y electrode switching element 70, and a method of solving the problem is also common. Do.

Hereinafter, the heat dissipation and noise reduction of the switching element of the present invention will be described with reference to FIG. 5. At this time, as described above, the problems of heat and noise generated in the X electrode switching element 75 or the Y electrode switching element 70 are common to each other, and the solutions thereof are also common. Only the reduction of heat and noise generated in the switching element will be described.

As described above, the plasma display panel 100 of the present invention must perform discharges including reset discharge, address discharge, and sustain discharge in one subfield. These subfields are selected to form one image frame that implements a screen for 1/60 second. Therefore, in order to drive the plasma display panel, a large amount of electrical signals must be applied to the Y electrodes 112 for a short time. For this purpose, a large number of Y electrode switching elements 70 for controlling the electrical signals are applied for a very short time. Switching work must be performed. This switching operation generates a large amount of heat in the Y electrode switching element 70.

In this case, in general, the switching element 70 is formed of semiconductor elements such as silicon (Si), germanium (Ge), and the like, and the electrical characteristics of the semiconductor elements are greatly affected by heat. Therefore, when the switching element is exposed to heat above a predetermined level, the switching element malfunctions or loses its function. Since this directly affects the image of the plasma display panel, the efficient discharge of heat is essential to maintain the image quality of the plasma display panel.

In this case, first, in order to dissipate heat generated in the Y electrode switching element, a separate heat sink 80 is disposed on the printed circuit board 90 rather than being attached to the Y electrode switching element. Preferably, the Y electrode switching element is attached to one surface of the heat sink 80 so that the heat sink 80 receives heat generated from the Y electrode switching device 70.

At this time, the heat sink 80 is provided with a plurality of heat dissipation blades 82 to increase the surface area in contact with the air it is possible to perform the heat dissipation faster than the switching element through heat exchange with the outside air, Accordingly, heat dissipation of the switching element may be smoother.

In addition, while the switching device 70 performs many switching operations for a short time, vibration of the switching device itself is generated in the switching device 70. And, the vibration generated in the switching element vibrates air to generate sound waves. At this time, the vibration generated in the switching element has a considerable level of energy, causing noise of high frequency to the extent that a person may feel uncomfortable.

At this time, since the noise generated by the switching element is originated from the vibration due to the switching operation of the switching element 70, if the vibration can be reduced, the noise generated by the switching element 70 can be reduced. Under this recognition, the noise reduction generated by the switching device of the present invention will be described.

Since the Y electrode switching element 70 is in physical contact with the heat sink 80, vibration generated in the Y electrode switching device is transmitted to the heat sink. At this time, the vibration vibrates the heat-dissipating blade 82 of the heat sink, air is vibrated by the vibration of the heat-dissipating blade, and the sound waves generated by the vibration collide with the sound absorbing plate to vibrate the silencer. At this time, some of these vibrations are transmitted to the sound absorbing plate 60 and again transmitted to the outside in the form of sound waves by vibrating the air in contact with the sound absorbing plate.

At this time, let's look at the transmission process of the vibration in more detail. As shown in FIG. 5, when the switching element 70 attached to an arbitrary heat sink 80a operates and transmits the vibration to the heat sink 80a, the heat sink is provided by the heat sink 80a. The vibration is transmitted to the heat-dissipating blades 82a1 of, and the vibrations again generate the sound waves 98 by vibrating the air between the heat-dissipating blades. And this sound wave is transmitted to the other heat dissipation vanes 82a2 of the heat sink 80a, and the heat dissipation vanes 82a2 are vibrated accordingly.

At this time, the heat sinks 80a and 80b are disposed to face the surfaces on which the heat dissipation wings are arranged, and the heat dissipation blades 82a1 and 82b of the heat sinks are arranged to intersect with each other, so that the sound waves again. The probability of hitting the other heat-emitting blades 82b is increased. Of course, the heat-dissipating wings must be arranged to intersect so that the sound waves do not collide with other heat-dissipating wings. However, since the heat-dissipating wings intersect with each other, the probability of collision of sound waves to the heat-dissipating wings is increased. Thus, the arrangement of the heat sinks increases the probability that the sound waves originating in the switching element 70 will vibrate the heat dissipating vanes 82a1 and 82b.

At this time, since the sound waves 98 continuously consume the energy while vibrating air or the heat-emitting blades, the energy consumption increases as the probability that the sound waves collide with the heat-emitting blades increases. Therefore, in the end, the vibration initiated by the switching element continuously consumes the energy while vibrating the heat sink and the heat-dissipating blade, and the energy of the sound wave emitted into the air becomes smaller, and thus the noise transmitted in the form of the sound wave is Is reduced.

On the other hand, the above description has been described taking the Y electrode driver 140 as an example, it is obvious that the same can be applied to the X electrode.

6 to 9, a description will be given of a plasma display device according to a second embodiment of the present invention, focusing on different matters from the plasma display device 1 according to the first embodiment of the present invention.

The plasma display device of the second embodiment of the present invention differs from that of the first embodiment of the present invention in that the Y electrode driver 240 and the X electrode driver 250 of the plasma display device of the second embodiment are provided. The shape of the heat dissipation blades of the sink 280, that is, the heat sinks of the heat sink 280 as shown in the Y electrode driver 240 and the X electrode driver 250 illustrated in FIGS. 6 and 7. At least one of the heat dissipation vanes among the vanes 282 is formed to have a predetermined curvature.

In this case, the heat dissipation vane 282 included in the heat sink 280 has a cross section in a specific direction, that is, perpendicular to the chassis 30 and the silencer 60 so as to have a predetermined curvature on one surface of the heat sink. It is preferable that the cross section extends to the shape of the arc.

As in the first embodiment of the present invention, at least one pair of heat sinks 280a and 280b of the heat sinks are disposed in a direction facing each other on the surface on which the heat dissipation blades 282 of the heat sinks are disposed. . The heat dissipation vanes 282a and 282b that cross each other are preferably arranged to surround each other in a direction in which the centers of the curvatures face each other.

At this time, when the heat dissipation vanes 282 are formed to have a predetermined curvature, as in the plasma display device of the second embodiment of the present invention, the surface area thereof is increased as compared with that of the flat plate, and thus the contact with air for the same time. The area to be increased. At this time, the heat conduction per unit time increases as the contact area of the heat conduction increases, and as a result, the heat conducted to the heat sink is transferred to the air for a faster time, thereby cooling the heat sink 280. At this time, when the heat sink 280 cools faster, the temperature difference between the heat sink and the switching elements 70 and 75 increases, and the switching element 70 which is attached to one surface of the heat sink 280 is increased. Heat generated at 75 may be quickly conducted to the heat sink 280, thereby facilitating cooling of the switching element.

At this time, in more detail, when the heat dissipation wing 282 is formed to have a curvature, as shown in Figure 8, the same width (l1), length (l2), thickness (t2) as the heat dissipation wing 282 In comparison with the heat dissipation vane 82 having a curvature and no curvature, the total surface area thereof is increased, thereby increasing the area of the heat dissipation vane 82 in contact with the outside air. Therefore, when the heat dissipation blade has a curvature, it is possible to more effectively release the heat generated by the switching element.

In addition, as shown in FIG. 9, when the heat-dissipating blade is arranged to have a predetermined curvature, the surface area of the heat-dissipating blade is increased, so that the acoustic wave 298 originating from the switching element 70 collides with the heat-dissipating blade. The probability of doing so increases further, and the mechanical energy of the sound waves is further consumed. As a result, the noise generated in the switching element can be further reduced.

In addition, the noise reduction characteristics are such that when the heat dissipation vanes 282a and 282b intersecting each other are disposed to surround each other in the direction in which the centers of the curvatures face each other, sound waves between the heat dissipation vanes strike other heat dissipation vanes. The heel probability is significantly increased, and as a result, the noise generated in the switching element can be further reduced.

 The present invention solves the heat dissipation problem of the switching element by allowing the switching element and the heat sink to be in physical contact with each other so that the heat generated by the switching element controlling the electrical signal applied to the plasma display panel can be efficiently released.

In addition, the heat sink of the heat sink has the curvature to increase the surface area to improve the heat dissipation performance.

In addition, the sound wave originated from the switching element attached to at least one surface of the heat sink is continuously collided with the heat-dissipating wing of the heat sink, so that the energy generated by the switching element is effectively reduced.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (9)

A plurality of discharge cells that are spaces for causing discharge therein, a plurality of sustain electrode pairs crossing the discharge cells, and address electrodes extending across the discharge cells to intersect the discharge electrode pairs in the discharge cells; A plasma display panel configured to implement an image; A chassis supporting the plasma display panel; A plurality of switching elements disposed at the rear of the chassis and controlling electrical signals applied to the sustain electrode pairs of the plasma display panel; A plurality of heat sinks having a plurality of heat dissipation vanes attached to at least one surface of the switching element to dissipate heat generated by the switching elements and disposed on a surface opposite to the surface to which the switching element is attached; And A noise plate disposed to cover the shock sinks and configured to reduce noise generated by the switching element, At least one pair of heat sinks of the heat sinks may be disposed in a direction facing each other on which the heat dissipation blades of the heat sinks are disposed, and the heat dissipation blades of the heat sinks may cross each other. Plasma display device characterized in that. delete A plurality of discharge cells that are spaces for causing discharge therein, a plurality of sustain electrode pairs crossing the discharge cells, and address electrodes extending across the discharge cells to intersect the discharge electrode pairs in the discharge cells; A plasma display panel configured to implement an image; A chassis supporting the plasma display panel; A plurality of switching elements disposed at the rear of the chassis and controlling electrical signals applied to the sustain electrode pairs of the plasma display panel; The switching element is attached to at least one surface to dissipate heat generated by the switching elements, and has a plurality of heat dissipation wings disposed on a surface opposite to the surface to which the switching element is attached; A plurality of heat sinks formed such that at least one of the heat dissipation vanes has a predetermined curvature; And A noise plate disposed to cover the shock sinks and configured to reduce noise generated by the switching element, At least one pair of heat sinks of the heat sinks may be disposed in a direction facing each other on which the heat dissipation blades of the heat sinks are disposed, and the heat dissipation blades of the heat sinks may cross each other. Plasma display device characterized in that. The method of claim 3 The heat dissipation vane is plasma display device, characterized in that the cross section in a specific direction extending in the shape of an arc so as to have a predetermined curvature on one surface of the heat sink. delete The method of claim 3 And the heat dissipating vanes crossing each other are arranged to surround each other in a direction in which the center of curvature thereof faces each other. The method according to claim 1 or 3, A printed circuit board is disposed on a rear surface of the chassis, the switching element is electrically connected to the printed circuit board, and the heat sink is disposed on the circuit board. The method according to claim 1 or 3, And a thermally conductive material having elasticity between the silencer and the heat sink. The method according to claim 1 or 3, The sustain electrode pair includes an X electrode and a Y electrode, the X electrode is a common electrode, the Y electrode is a scan electrode, and the switching elements are X electrode switching elements and Y for controlling an electrical signal applied to the X electrode. And a Y electrode switching element for controlling an electrical signal applied to the electrode.

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