KR20040048698A - Plasma display device - Google Patents

Abstract

PURPOSE: A plasma display device is provided to achieve improved heat radiation effect and reduce the thickness of the device by improving the assembly structure of a driver circuit. CONSTITUTION: A plasma display device comprises a plasma display panel(12); a driver circuit including an X and Y electrode integrated driver board(20), a power board(22), an image board(24), a logic board(26), and an address driver board(28); and a board installation unit where the boards of the driver circuit are assembled. The X and Y electrode integrated driver board and the image board are assembled to left and right sides of a chassis base(20). The power board and the logic board are assembled to the center of the chassis base. The address driver board is assembled to the lower side of the chassis base.

Description

Plasma display device {PLASMA DISPLAY DEVICE}

The present invention relates to a plasma display device, and more particularly, to a plasma display device having a reduced thickness and excellent heat dissipation effect.

In general, a plasma display panel (hereinafter referred to as a 'PDP' for convenience) is a display element that excites a phosphor by vacuum ultraviolet rays caused by gas discharge to realize a predetermined image, and is possible to construct a large screen with high resolution. It is attracting attention as a thin display device.

A display device having such a plasma display panel is basically a chassis base disposed substantially parallel to the PDP, a heat conducting medium interposed between the PDP and the chassis base and closely attached to the PDP and the chassis base, And a driving circuit unit mounted on the side opposite to the panel attaching surface and connected to the PDP to drive the PDP. A front cover is coupled to the PDP side, and a back cover is coupled to the driving circuit unit side.

In the plasma display device having such a configuration, as shown in Figs. 1 and 2, the driving circuit portion assembled to the rear surface of the chassis base 102 selects the X electrode driving board 104 for discharging sustain discharge and the discharge. Y-electrode driving board 106, a power supply board (SMPS: Switching Mode Power Supply) 108, an image board 110, a logic board 112, and an address driving board for selecting a discharge cell 114. In this case, the image board 110 converts a signal according to the PDP format, and the logic board 112 processes a signal of an address driver, an X electrode, and a Y electrode driving board.

In FIG. 2, reference numeral 116 denotes a PDP, and 118 denotes a thermally conductive medium.

In the plasma display device having such a configuration, for example, in the case of 42 inches, the X electrode driving board 104 and the Y electrode driving board 106 are approximately 200 mm x 350 mm in size, and the power supply board (SMPS) 108 is used. Is approximately 300 mm x 400 mm in size, and the image board 110 and logic board 112 are approximately 200 mm x 270 mm in size.

However, since the chassis base to which the above-described boards are assembled has a size of about 1100 mm × 700 mm, other boards except the image board 110, that is, the X electrode driving board 104, the Y electrode driving board 106, The power board 108, the logic board 112, and the address drive board 114 are assembled on the same plane of the chassis base 102, while the image board 110 is coplanar with the aforementioned boards 104, 106, 108, 112, 114. Since it is impossible to assemble the phase, there is a problem that the overall thickness is unnecessarily increased by the thickness (T) of the image board 110, and the heat dissipation function due to natural convection is deteriorated due to the thickness difference, so that the driving circuit part There was a problem that is broken due to the temperature rise.

Accordingly, an object of the present invention is to provide a plasma display device capable of reducing thickness and excellent heat dissipation effect by improving an assembly structure of a driving circuit unit.

In order to achieve the above object, the present invention,

Plasma Display Panel (PDP);

A driving circuit unit including an X and Y electrode integrated driving board, a power board, an image board, a logic board, an address driving board, and the like, for driving the integrated X and Y electrodes;

A board installation unit to which respective boards of the driving circuit unit are assembled;

Each board of the driving circuit unit is achieved by a plasma display device assembled to the board installation unit on the same plane.

According to a preferred embodiment of the present invention, the X, Y electrode integrated driving board and the image board are assembled in both the left and right spaces of the chassis base. Thus, when the image board is assembled in either space of the both sides of the chassis base, There is an effect that the application system (application) can be easily connected to the image board.

In addition, the power board and logic board are assembled in the vertical space in the center space of the chassis base in the space between the X and Y electrode integrated driving board and the image board, when the power board and logic board are assembled in the vertical direction It is preferable to assemble a power board having a high heat dissipation temperature on the upper side and a logic board to the lower side of the power board. This is because, in the opposite case, that is, when the power board is assembled below the logic board, the logic board may be damaged by heat generated from the power board.

According to the display device having such a configuration, since the image board can be assembled in an empty space generated by using the X and Y electrode integrated driving boards in which the conventional X electrode driving board and the Y electrode driving board are integrated, the boards of the chassis base Can be assembled directly on the same plane of.

Therefore, the display device of the present invention can be reduced in thickness by the thickness of the image board compared to the conventional display device in which the image board is assembled to the logic board, and each board is directly assembled to the rear of the chassis base on the same plane. It is possible to improve heat dissipation by convection.

1 is a view showing a state in which the driving circuit unit assembled in the plasma display device according to the prior art.

2 is a side view of FIG. 1;

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

4 is a view illustrating a state in which a driving circuit unit is assembled in a plasma display device according to another exemplary embodiment of the present invention.

Hereinafter, a plasma display device according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

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

As shown, the plasma display device includes a PDP 12, a chassis base 14 on which the PDP 12 is fixed to the front surface, a driving circuit unit assembled to the rear surface of the chassis base 14, and a PDP 12 in front of the PDP 12. The front cover 16 is positioned, and the back cover 18 is located behind the chassis base 14 while surrounding the chassis base 14.

On the inner surface of the front cover 16 facing the PDP 12, a known conductive film filter 16 'is fixedly mounted for preventing static electricity, and the back cover 18 is formed together with the front cover 16. 12 and surrounding the chassis base 14 and assembled together with the chassis base 14 through the fixing brackets 14 'to form an appearance of the plasma display apparatus.

In addition, the driving circuit unit assembled to the rear surface of the chassis base 14 includes an X, Y electrode integrated driving board 20, a power board 22, an image board 24, a logic board 26, and an address driving board 28. ), The X, Y electrode integrated driving board 20 is a combination of the conventional X electrode driving board (see 104 in FIG. 1) and the Y electrode driving board (see 106 in FIG. 1).

Therefore, one side space of the chassis base 14 to which the conventional Y electrode driving board (or X electrode driving board) is assembled is left as an empty space, and the image board 24 is mounted in the empty space.

That is, the X and Y electrode integrated driving board 20 and the image board 24 are assembled in the left and right spaces of the chassis base 14, and the power board 22 is installed in the central space between the two boards 20 and 24. ) And the logic board 26 are assembled up and down, and the address driving board 28 is assembled in the lower space of the chassis base 14 below the boards 20, 22, 24, and 26. As such, by assembling the power board 22 on the upper side of the logic board 26, the logic board 26 can be prevented from being damaged by the heat generated from the power board 22, and the logic board 26 can be prevented. Separate parts for cooling can also be removed.

As described above, the display device of the present invention is excellent in heat dissipation effect because the boards 20, 22, 24, 26, 28 constituting the driving circuit part are arranged on the same plane at the rear of the chassis base 14; And the thickness is reduced.

4 is a view illustrating a state in which a driving circuit unit of a plasma display device according to another embodiment of the present invention is installed. In the present embodiment, the power board 22 and the logic board 26 are integrated with X and Y electrodes. Except that arranged in the left and right directions in the space between the drive board 20 and the image board 24 has the same operation and effect as the embodiment of FIG.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the range of.

As described above, according to the display device of the present invention, since the image board is assembled in an empty space generated by using the X and Y electrode driving boards in which the conventional X electrode driving board and the Y electrode driving board are integrated, the driving circuit unit Each board constituting the L may be directly assembled on the same plane at the rear of the chassis base.

Accordingly, the display device of the present invention is reduced in thickness by about 25 mm of the thickness of the image board compared to the conventional display device in which the image board is assembled to the logic board.

In addition, since each board is assembled directly on the back of the chassis base on the same plane, it is possible to improve heat dissipation by natural convection. The experiment of the present inventors showed that the apparatus of this invention has a temperature reduction effect of 10-12 degreeC compared with the conventional apparatus.

In addition, the power board and the logic board are generated in the power board because the power board having a high heat dissipation temperature is assembled by the vertical arrangement method in which the power board is assembled on the upper side of the logic board, or the left and right arrangement method in which the power board and the logic board are assembled in the left and right directions. It is possible to effectively prevent the logic board from being damaged by the heat.

In addition, since the image board is assembled to the side of the chassis base, there is an advantage that can easily connect and use other application systems.

Claims (5)

Plasma Display Panel (PDP); A driving circuit unit including an X and Y electrode integrated driving board, a power board, an image board, a logic board, an address driving board, and the like, for driving the integrated X and Y electrodes; A board installation unit to which boards of the driving circuit unit are assembled; And each board of the driving circuit unit is assembled to the board installation unit on the same plane. According to claim 1, wherein the X, Y electrode integrated driving board and the image board is assembled in the left and right spaces of the chassis base, the power board and the logic board is the chassis base in the space between the X, Y electrode driving board and the image board And an address driving board assembled to a lower space of the chassis base under the boards. The plasma display apparatus of claim 2, wherein the power board and the logic board are assembled in a vertically arranged state. 4. The plasma display device of claim 3, wherein the power board is assembled above the logic board. The plasma display apparatus of claim 2, wherein the power board and the logic board are assembled in a left-right arrangement state.