KR100349919B1 - Plasma display panel - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display device, which effectively dissipates heat generated in a plasma display device, thereby securing reliability of circuit elements, extending the life of the plasma display device, and ensuring a comfortable viewing environment. An object of the present invention is to provide a plasma display panel for forming an image by plasma discharge, a frame chassis mounted on a rear surface of the plasma display panel and extending from a portion of the edge thereof, and bent over the frame chassis. And at least one circuit board, a cover covering each device, and a wall reinforcement material coupled to a connection portion of the frame chassis passing through the cover and mounted to a wall on which a plasma display device is installed.

Description

Plasma display panel {Plasma display panel}

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 to effectively release heat generated in a plasma display device.

In general, a plasma display panel encapsulates a gas between two substrates on which a plurality of electrodes are formed, applies a discharge voltage, and excites a phosphor formed in a predetermined pattern by ultraviolet rays generated by the discharge voltage. Refers to a device that obtains numbers, letters or graphics.

Such a plasma display device is classified into a direct current type and an alternating current type according to a type of a driving voltage applied to a discharge cell, for example, a discharge type, and can be classified into a counter discharge type and a surface discharge type according to a configuration of electrodes.

The direct current plasma display device is a structure in which all electrodes are exposed to a discharge space, and charge is directly transferred between corresponding electrodes. In an AC plasma display, at least one electrode is surrounded by a dielectric layer, and discharge is performed by an electric field of wall charge instead of direct charge transfer between corresponding electrodes.

In such a plasma display device, the panel is heated to a temperature of 60 to 80 ° C. or heat is generated from the circuit board by plasma discharge during driving. Since the heating of the plasma display device may adversely affect the phosphor, the electrode, the electromagnetic shielding film, and the like, it is necessary to suppress the temperature below a predetermined temperature.

1 is a side view schematically showing a plasma display device employing a conventional heat dissipation means.

Referring to the drawings, a conventional plasma display device includes a plasma display panel 11, a plate-shaped frame chassis 12 mounted on the plasma display panel 11, and a circuit board provided on the frame chassis 12. 13, a circuit element 14 connected to the circuit board 13 and composed of a heating element, a heat sink 16 bonded to the circuit element 14, the circuit element 14, and a heat sink. It consists of a thermally conductive rubber (15) connecting between the (16) and a cover (17) covering the devices having a grill (18) in part. In addition, a fan 19 may be installed between the circuit board 13 and the cover 17 to induce smooth air circulation in the plasma display device so that heat dissipation by the heat sink 16 may be efficiently performed.

The conventional plasma display device configured as described above collects heat generated in the plasma display panel 11 and transferred through the frame chassis 12 and heat generated in the circuit element 14 to the heat sink 16 and then the circuit board. The plasma display device had an action and an effect of preventing the plasma display device from being heated by releasing the air to the outside through the cover 17 through the air between the 13 and the cover 17. In addition, when the fan 19 is installed, such heat dissipation may be more efficiently achieved by promoting circulation of air between the circuit board 13 and the cover 17.

However, since the conventional plasma display device emits heat collected in the heat sink 16 to the outside only by air circulation between the circuit board 13 and the cover 17, the efficiency of heat dissipation is low. There was a problem that (14) is short-circuited during operation, and even if the fan 19 is installed to increase the air circulation, the efficiency of heat dissipation can be partially increased, but a pleasant viewing environment is ensured due to the noise of the fan. There was a problem that was difficult to do.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to connect a frame chassis in a plasma display device to a wall reinforcement in which the plasma display device is installed and use it as a cooling fin, thereby providing a plasma display panel and a circuit. By discharging the heat generated by the device directly to the outside, it is possible to secure the reliability of circuit elements and ultimately to extend the life of the plasma display device and to increase the efficiency of heat dissipation without using the fan. It is to provide a plasma display device that can prevent the noise caused by a comfortable viewing environment.

1 is a side view schematically showing a plasma display device employing a conventional heat dissipation means;

FIG. 2 is a side view schematically showing a wall reinforcement coupled to a frame chassis as a heat dissipation means in a plasma display device according to an exemplary embodiment of the present invention; FIG.

FIG. 3 is a side view schematically showing that a plasma display device according to another exemplary embodiment of the present invention employs a wall reinforcement coupled with a heat pipe as a heat dissipation means. FIG.

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

11, 21 and 31 are plasma display panels. 12, 22, frame chassis.

13, 23, 33: circuit board. 14: circuit element.

15: thermally conductive rubber. 16: heat sink.

17, 24, 34: cover. 18: Grill.

19: fan. 25, 35: wall reinforcement.

26, 36: wall surface. 32: heat pipe.

In order to achieve the above object, a plasma display device according to an aspect of the present invention, the plasma display panel for forming an image by the plasma discharge, and the connection portion which is mounted on the rear surface of the plasma display panel and extended from a portion of the edge A frame chassis having a frame chassis, at least one circuit board mounted on the frame chassis, a cover covering the respective devices, and a connection portion of the frame chassis passing through the cover and mounted on a wall on which a plasma display device is installed. A wall reinforcement is provided.

In addition, the plasma display device according to an aspect of the present invention is characterized in that the frame chassis is made of aluminum.

According to another aspect of the present invention, a plasma display device includes a plasma display panel for forming an image by plasma discharge, a heat receiving portion attached to a rear surface of the plasma display panel, and a heat radiating portion extending from the heat receiving portion and bent. And a wall reinforcement member coupled to at least one circuit board provided on the heat pipe, a cover covering the devices, and an end portion of a heat radiating portion of the heat pipe passing through the cover and mounted on a wall on which a plasma display device is installed. Characterized in having a.

In the plasma display device according to another aspect of the present invention, the wall reinforcing material is made of aluminum.

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

2 is a side view schematically illustrating a plasma display device according to an exemplary embodiment of the present invention.

Referring to the drawings, a plasma display device according to an exemplary embodiment of the present invention includes a plasma display panel 21 for forming an image by plasma discharge, a rear surface of the plasma display panel 21, and a part of an edge thereof. A frame chassis 22 having a connecting portion 22a extending from the bent, at least one circuit board 23 installed on the frame chassis 22, a cover 24 covering the devices, and the cover And a wall reinforcing member 25 which is coupled to the connecting portion 22a of the frame chassis 22 penetrating through the 24 and mounted on the wall surface 26 on which the plasma display device is installed.

The plasma display panel 21 may be any type of AC type or DC type.

The frame chassis 22 is mounted on the rear surface of the plasma display panel 21 by a heat conductive adhesive, and is made of a material having good thermal conductivity. Preferably, it is made of aluminum. The frame chassis 22 also has at least one or more connecting portions 22a that extend and bend at portions of the left and right ends, respectively. However, the connection portion is not limited thereto and may be variously made within the scope of the present invention.

The circuit board 23 may be installed on one side of the frame chassis 22 opposite to the side mounted to the plasma display panel 21 and may be installed in one or more numbers.

The cover 24 has a plate shape, and portions near each edge are bent at a predetermined angle to form a thin box shape without a top cover as a whole, and portions near the edges are holes through which the frame chassis 22 penetrate. And an edge thereof is coupled to each end of the plasma display panel 21 to cover the devices, thereby protecting them. However, the shape of the cover 28 is not limited thereto and may be variously made within the scope of the present invention.

The wall reinforcement material 25 is mounted on a wall surface on which the plasma display device of the present invention is installed, and is coupled to the connection portion 22a of the frame chassis 22. In addition, the wall reinforcing material 25, as shown in Figure 2, is preferably integrally installed on the wall surface on which the plasma display device of the present invention is installed to extend into the wall parallel to the wall surface, but is not necessarily limited thereto. For example, as shown in FIG. 3, the present invention may be formed in various forms within the scope of the present invention, such as being formed in a plate shape having only a predetermined area without extending into the wall.

3 is a side view illustrating a plasma display device according to another exemplary embodiment of the present invention.

Referring to the drawings, a plasma display device according to another preferred embodiment of the present invention includes a plasma display panel 31 for forming an image by plasma discharge, and a heat receiving portion attached to a rear surface of the plasma display panel 31. 32a), a heat pipe 32 having a heat radiating portion 32b extending from the heat receiving portion 32a, bent, at least one circuit board 33 provided on the heat pipe 32, Wall reinforcing material 35 coupled to the cover 34 covering the devices and the heat dissipation portion 32b of the heat pipe 32 passing through the cover 34 and mounted on the wall surface 36 on which the plasma display device is installed. It is characterized by including;

Here, in the plasma display device according to another preferred embodiment of the present invention shown in FIG. 3, the frame chassis 22 is removed from the plasma display device according to the above-described embodiment illustrated in FIG. The configuration is the same except that the pipe 32 is mounted. Therefore, the present embodiment will be described only in relation to the heat pipe 32, and description of the remaining components will be omitted.

The heat pipe 32 is a condensable hydraulic fluid is enclosed in the loop-type or non-loop type tubing, and in the unused state, the liquid part in the plug state and the steam of the working liquid are closed by the surface tension of the working fluid. If vapor phase filled with diffusion vapor phases are arranged in equilibrium at alternating or random intervals, and if there is endotherm or heat dissipation in a portion of the customs, this equilibrium is broken and both the working fluid and vapor are sensitively moved, In other words, it is a device that circulates or vibrates to enable heat transportation without supplying additional energy from the outside.

As shown in FIG. 3, the heat pipe 32 includes a heat radiating part 32a that absorbs heat on a rear surface of the plasma display panel 31 and a heat radiating part 32b that radiates heat. It is preferable to be disposed so as to extend to the outside of the plasma display device through the hole penetrated through the 34 and to be coupled to the wall reinforcement 35 mounted on the wall 36. As the heat pipe 32, it is preferable to use a plate-shaped meandering customs heat pipe having meandering customs formed in a plate made of a material having good thermal conductivity. However, the heat pipe 32 is not necessarily limited thereto, and various types can be used within the scope of the present invention. have.

Hereinafter, the operation of the present invention configured as described above.

When the plasma display device starts to operate, heat is generated in the plasma display panel 21 by plasma discharge, and the heat is transferred to the frame chassis 22 mounted on the plasma display panel 21 by a thermally conductive adhesive. In addition, the circuit board 23 mounted on the frame chassis 22 also generates heat according to its operation.

As a result, all of the heat generated in the plasma display panel 21 and the circuit board 23 is transferred to the frame chassis 22. The heat transmitted as described above is transferred to the wall reinforcement 25 coupled thereto through the connecting portion 22a of the frame chassis 22 exposed to the outside through the hole in the cover 24, thereby externalizing the plasma display device. Is released.

On the other hand, when the heat pipe 32 is mounted in place of the frame chassis 22, heat generated in the plasma display panel 31 and the circuit board 33 is received by the heat receiving portion 32a of the heat pipe 32. The wall reinforcement material absorbed into the heat pipe 32 and then coupled thereto through the heat dissipation portion 32b of the heat pipe 32 exposed to the outside through a hole in the cover 34. 35 is emitted to the outside of the plasma display device.

The effects of the plasma display device of the present invention made as described above are as follows.

First, the heat dissipation efficiency of the plasma display device is not limited by simply circulating air in the plasma display device, but directly radiates heat to the outside using a frame chassis or a heat pipe that is directly exposed to the outside of the plasma display device and has excellent heat transport efficiency. Can be significantly improved to ensure the reliability of the circuit elements and to prolong the lifetime of the plasma display device.

Secondly, it is possible to achieve a predetermined heat dissipation efficiency without employing a fan that is conventionally used to smooth air circulation in the plasma display device, thereby fundamentally removing noise due to the operation of the fan, thereby achieving a comfortable viewing environment. .

Third, by using a frame chassis or heat pipe having a fast response to temperature change, heat dissipation in the plasma display device is quickly achieved.

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

Claims (4)

A plasma display panel which forms an image by plasma discharge; A frame chassis mounted on a rear surface of the plasma display panel and having a connection portion extending from a portion of an edge thereof and bent; At least one circuit board mounted on the frame chassis; A cover covering each of the devices; And And a wall reinforcement member coupled to a connection portion of the frame chassis passing through the cover and mounted to a wall surface on which a plasma display device is installed. The method of claim 1, And the frame chassis is made of aluminum. A plasma display panel which forms an image by plasma discharge; A heat pipe having a heat receiving portion attached to a rear surface of the plasma display panel and a heat radiating portion extending from the heat receiving portion and bent; At least one circuit board mounted on the heat pipe; A cover covering each of the devices; And And a wall reinforcement material coupled to an end portion of the heat dissipation portion of the heat pipe passing through the cover and mounted to a wall surface on which a plasma display device is installed. The method according to claim 1 or 3, And the wall reinforcing material is made of aluminum.