KR100592262B1 - Plasma display - Google Patents

Abstract

The present invention discloses a plasma display device. According to the present invention, there is provided a panel for implementing an image; A circuit board for driving the panel; A chassis base on which the panel and the circuit board are installed; Connecting the panel and the circuit board to transmit an electrical signal, the signal transmitting means arranged along at least one edge of the chassis base; And at least one heat dissipation fan disposed adjacent to the signal transmitting means and configured to blow in the direction in which the signal transmitting means are arranged.

Description

Plasma display apparatus

1 is a partial side cross-sectional view showing an example of a conventional plasma display device.

2 is an exploded perspective view illustrating a plasma display device according to an embodiment of the present invention.

3 is a partial side cross-sectional view of FIG. 2.

4 is a schematic view showing a direction blown by the heat radiation fan of FIG.

<Brief description of the major symbols in the drawings>

111 Panel 112 Chassis base

113..Circuit board 131..TCP

132.Element 141.Reinforcement member

151. Protection plate 171 Heat dissipation fan

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display device, and more particularly, to a plasma display device having an improved structure so that heat generated from a heating element can be smoothly dissipated when a panel is driven.

In general, the plasma display device forms respective electrodes on opposite surfaces of the substrates, and applies a predetermined power in a state in which discharge gas is injected into the spaces between the substrates to emit light emitted by ultraviolet rays generated in the discharge spaces. The flat panel display device which implements an image by using the same. The plasma display device can be manufactured with a thin thickness of several centimeters or less, can have a large screen, and has been spotlighted as a next-generation image display device in view of having a wide viewing angle of 150 ° or more.

An example of such a plasma display device is shown in FIG. 1.

In the illustrated plasma display device 10, an image panel 11 is coupled to the chassis base 12 with a heat dissipation member 14 interposed therebetween, and various electronic components are mounted on the chassis base 12. The mounted circuit board 13 is coupled. In addition, the circuit board 13 and the panel 11 are electrically connected to each other by the signal transmitting means 15, and a filter 16 is supported and installed on the front surface of the panel 11. The panel 11 coupled to the chassis base 12 and the like as described above is accommodated by the front cabinet 17 and the back cover 18.

In the plasma display device 10 configured as described above, high temperature heat is generated in the panel 11 itself, and heat generated from electronic components for driving the panel 11 is also very high. Since heat generated by such a heating element causes many problems such as deteriorating the characteristics of the panel 11, it is very important to effectively dissipate heat.

To this end, as shown in the drawing, the heat dissipation fan 19 is installed in the back cover 18, and the air is introduced from the outside by the heat dissipation fan 19, such as the panel 11, the circuit board 13, and the like. The heat generated from the heating element is dissipated by blowing air toward the heating element.

On the other hand, in recent years, as a signal transmission means for electrically connecting between a panel and a circuit board in a plasma display device, a TCP (Tape Carrier Package) in which a plurality of elements are packaged and packaged is used. . Since the devices mounted on the TCP have a small size, in order to secure the reliability of the device, heat generated from the devices needs to be more effectively dissipated.

However, when the heat dissipation fan is installed in the back cover as in the prior art, there is a limit to dissipate heat generated from the TCP having the structure as described above, the situation is required to solve this situation.

The present invention is to solve the above problems, by disposing a heat dissipation fan so that the signal transmission means is blown in the arrangement direction, the plasma display which can ensure the operating reliability of the panel to smooth the heat radiation of the signal transmission means The purpose is to provide a device.

Plasma display device according to the present invention for achieving the above object,

A panel for implementing an image;

A circuit board driving the panel;

A chassis base on which the panel and the circuit board are installed;

Signal transmission means connected between the panel and the circuit board to transmit an electrical signal, the signal transmission means being arranged along at least one edge of the chassis base;

And at least one heat dissipation fan disposed adjacent to the signal transfer means to blow in the direction in which the signal transfer means are arranged.

The heat dissipation fan is composed of a pair, it is preferable that the signal transmission means is arranged in the center, the air is blown in both directions.

The blowing direction by the heat radiating fan is preferably inclined at a predetermined angle toward the signal transmitting means with respect to the direction in which the signal transmitting means are arranged.

Preferably, the signal transmission means is TCP.

At least one side of the chassis base is further provided with a reinforcing member for preventing the bending of the chassis base, it is preferable that the elements mounted on the signal transmission means respectively mounted on the reinforcing member.

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

2 is an exploded perspective view of a plasma display device according to an exemplary embodiment of the present invention, and FIG. 3 is a partial side cross-sectional view of the assembled state of the plasma display device of FIG. 2.

Referring to the drawings, the plasma display device 100 according to an embodiment of the present invention, the panel 111, the chassis base 112 for supporting the panel 111, the panel 111 and the chassis base Basically, the circuit board 113 provided between 112 is provided.

The panel 111 includes a front panel and a back panel, wherein the front panel includes a plurality of sustain electrodes in a strip form, a bus electrode connected to each of the sustain electrodes, and a front dielectric layer filling the sustain electrodes and the bus electrodes. And a protective film layer coated on the surface of the front dielectric layer. The rear panel is sealed to face the front panel, and includes a plurality of address electrodes in a form orthogonal to the sustain electrode, a back dielectric layer filling the address electrode, and a back space formed on the back dielectric layer. And a partition wall for preventing cross-talk and a red, green, and blue phosphor layer applied inside the discharge space partitioned by the partition wall.

A filter 114 is installed on the front surface of the panel 111, and the filter 114 may include an electromagnetic shielding layer for blocking electromagnetic waves harmful to a human body generated when the panel 111 is driven.

In addition, the chassis base 112 is disposed at the rear of the panel 111 configured as described above, and the chassis base 112 supports the panel 111 and receives heat from the panel 111 to release the heat. do.

The panel 111 configured as described above is fixed to the chassis base 112 by an adhesive member, such as a double-sided tape. In addition, a heat dissipation means 115 for a panel, which is a heat conducting medium, is provided between the panel 111 and the chassis base 112. The panel heat dissipation means 115 allows heat generated from the panel 111 to be discharged to the outside via the chassis base 112.

In addition, a circuit board 113 is mounted at the rear of the chassis base 112 coupled to the panel 111. Electronic components for driving the panel 111 are mounted on the circuit board 113. The components provide a component for supplying power to the panel 111 and a signal for realizing an image on the panel 111. It includes various parts such as parts to be applied. The panel 111, the chassis base 112, and the circuit board 113 configured as described above are accommodated in a case not shown.

On the other hand, the circuit board 113 drives the panel 111 by transmitting an electrical signal to the panel 111 by at least one signal transmission means. As the signal transmission means, a tape carrier package (TCP), a chip on film (COF), or the like may be used. According to the present embodiment, at least one device 132, for example, a driving IC may be mounted in a tape and packaged. The TCP 131 formed as follows is used and will be described below.

As shown in FIGS. 2 and 3, the TCP 131 is provided in plural and arranged in a line along both edges of the chassis base, and one side of the panel is connected to both sides of the chassis base 112 by the two ends. And the other side is connected to the circuit board 113, and the elements 132 mounted on the TCPs 131 are seated on the reinforcing members 141 respectively provided on both sides of the chassis base 112. have. The reinforcing member 141 is made of a metal material, and prevents warping of the chassis base 112 and increases the area radiated from the chassis base 112 to increase heat dissipation efficiency.

In addition, protection plates 151 may be provided on the outside of the TCPs 131 to wrap and protect the outside of the TCPs 131, and the protection plate 151 may be made of a metal material such as aluminum, and the screws 152 may be provided. By fastening and assembling with the reinforcing member by a fixing means such as can be grounded.

As shown in FIG. 3, the first element heat dissipation means 161 and the second element heat dissipation means 162 are provided on both sides of each TCP 131 seated on the reinforcing member as described above. The heat generated during operation of the device 132 mounted on the 131 is released.

As the heat dissipation means 161 for the first element, a liquid or gel-type heat conduction medium such as grease may be used, and the heat dissipation means 162 for the second element may include an element 132 and As a direct contact, a cushioning member may be used to cushion shocks that may be exerted on the element 132. However, it is not necessarily limited thereto.

Meanwhile, at least one heat dissipation fan 171 according to an aspect of the present invention is installed adjacent to the TCPs 131 mounted on the respective reinforcing members 141 as described above.

The heat dissipation fan 171 is arranged to blow in the direction in which the TCPs 131 are arranged on the protection plate 151, thereby dissipating the TCPs 131.

As illustrated in FIG. 2, the heat dissipation fans 171 may be configured and arranged in pairs on the respective protection plates 151. That is, the pair of heat dissipation fans 171 as described above are disposed adjacent to each other on the center side of the protection plate 151 located on the upper side, and may be blown in both directions. In addition, the pair of heat dissipation fans 171 may be disposed at predetermined intervals on one side edge and the center side of the protection plate 151 located at the lower side, and may be blown in one direction. As described above, since the heat dissipation fans 171 are disposed adjacent to the TCPs 131, the heat dissipation fans 171 may be more efficiently dissipated from the elements 132 of the TCP 131, thereby the elements 132 of the TCP 131. ) Can be prevented from falling. As a result, it is possible to secure operational reliability of the panel 111.

On the other hand, since the configuration for the heat dissipation fan as described above is an example, it can be arranged to be blown in both directions or one direction in both the upper and lower protection plates, and in the upper and lower protection plates Heat dissipation fans may be arranged as opposed to shown. In addition, the number of heat dissipation fans is not limited to the bar, but may be set to maximize the heat dissipation effect of TCP.

In addition, as shown in FIG. 4, the heat dissipation fan 171 is preferably installed so as to be inclined at a predetermined angle θ toward the TCP 131 with respect to the direction in which the TCP 131 is arranged. . As a result, the amount of air blown toward the TCPs 131 is increased, so that the effect of dissipating heat emitted from the element 132 of the TCPs 131 can be further enhanced.

Meanwhile, as illustrated, the heat dissipation fan 171 may be disposed on the respective protection plates 151 while being supported by the bracket 172, and the bracket 172 supporting the heat dissipation fan 171. ) May be coupled to and fixed to the chassis base 112. However, the bracket is not limited thereto since it may be fixed to the case and the like.

 As described above, in the plasma display device according to the present invention, the heat radiating fan is disposed adjacent to the TCPs, so that heat generated from the elements of the TCP can be more effectively dissipated. Therefore, the effect of ensuring the reliability of the device and the operation reliability of the panel can be obtained.

Although the present invention has been described with reference to one embodiment shown in the accompanying 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. Could be. Accordingly, the true scope of protection of the invention should be defined only by the appended claims.

Claims (9)

A panel for implementing an image; A circuit board driving the panel; A chassis base on which the panel and the circuit board are installed; Signal transmission means connected between the panel and the circuit board to transmit an electrical signal, the signal transmission means being arranged along at least one edge of the chassis base; And at least one heat dissipation fan disposed adjacent to the signal transfer means and configured to blow air in the direction in which the signal transfer means are arranged. The method of claim 1, The heat dissipation fan is formed in a pair, and the signal transmission means is arranged in the center arranged, the plasma display device, characterized in that the air blows in both directions. The method according to claim 1 or 2, And a blowing direction by the heat radiating fan is inclined at a predetermined angle toward the signal transmitting means with respect to the direction in which the signal transmitting means are arranged. The method of claim 1, And said signal transmitting means is TCP. The method of claim 1, And at least one side of the chassis base further includes a reinforcing member for preventing bending of the chassis base, and elements mounted on the signal transmitting means are mounted on the reinforcing member. The method of claim 5, And a heat dissipation means for a first element between the signal front end means and the reinforcement member. The method of claim 1, Plasma display device further comprises a protection plate on the outside of the signal transmission means. The method of claim 7, wherein And a heat dissipation means for a second element between the signal transmission means and the protection plate. The method of claim 1, And a heat dissipation means for the panel between the panel and the chassis base.

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