KR20060119590A - Flat display device - Google Patents

Abstract

A flat display apparatus is provided to improve design flexibility and to reduce manufacturing cost by using a support bracket provided on a frame for fixing a driving circuit. A frame(20) discharges heat generated in driving and supports a plasma display panel. A supporter bracket(21), a boss(28), and a ground projection(27) are formed on the frame. A driving circuit substrate(25) is connected and fixed to the supporter bracket and the boss to be coupled to the frame. An end of the driving circuit substrate is coupled to the supporter bracket and the other end thereof is coupled to the boss by a coupling unit(29) to be coupled to the frame. A coupling connector(24) is formed at least one side of the supporter bracket formed on the frame. The end of the driving circuit substrate is inserted into and fixed to the coupling connector to be coupled with the frame.

Description

Flat Display Device

1 is a schematic view showing the structure of a conventional plasma display device;

FIG. 2A illustrates a coupling state of a supporter bracket and a driving circuit board installed in a frame of a conventional plasma display device.

FIG. 2B is a cross-sectional view of the plasma display device taken along the line A-A of FIG. 2A.

Figure 3a is a view showing a coupling state of the supporter bracket and the driving circuit board installed in the frame according to an embodiment of the present invention.

3B is a cross-sectional view of the plasma display device taken along the line B-B of FIG. 3A.

Figure 4a is a view showing a coupling state of the supporter bracket and the driving circuit board installed in the frame according to another embodiment of the present invention.

4B is a cross-sectional view of the plasma display device taken along the line C-C of FIG. 4A.

5A is a view illustrating a coupling state of a supporter bracket and a driving circuit board installed in a frame according to another embodiment of the present invention.

5B is a cross-sectional view of the plasma display device taken along the line D-D of FIG. 5A.

***** Explanation of symbols for the main parts of the drawing *****

20: frame 21: supporter bracket

22: fastener 24: coupling portion

25: drive circuit board 27: ground projection

28: boss 29: fastening means

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat panel display device, and more particularly, to a flat panel display device which can improve the coupling structure of a frame and a driving circuit board to reduce manufacturing cost and to be more easily combined.

Recently, flat panel displays have been widely used in place of CRTs. Representative of such a flat panel display device is a plasma display panel.

In general, a plasma display device generates vacuum ultraviolet rays when an inert gas existing between a soda-lime glass front substrate and a rear substrate is discharged by a high frequency voltage. A device for realizing an image by emitting a formed phosphor.

1 is a diagram schematically illustrating a structure of a conventional plasma display device. As shown in the drawing, the plasma display device excites a phosphor by a case 110 including a front cabinet 111 and a back cover 112 that determine an appearance, and vacuum ultraviolet rays caused by gas discharge inside the case. Plasma Display Panel 120 (hereinafter referred to as PDP) for realizing an image, a driving device 130 including a PCB to drive and control the PDP, and a plasma display device connected to the driving device Filter (150) formed by attaching a film to a transparent glass substrate (not shown) with a predetermined interval in front of the frame 140 and the front surface of the PDP for dissipating heat generated during driving and supporting the plasma display panel And a finger spring gasket 160 and a filter supporter 170 for electrically connecting the metal bag cover to the metal bag cover while supporting the filter 150. Including and a module supporter (Module Supporter, 180) for supporting the PDP.

In the manufacturing process of the conventional plasma display device having such a structure, first, a PDP for realizing the image is manufactured, and then a frame and a driving device installed on the rear surface of the PDP are assembled to manufacture a PDP module. Thereafter, a case 110 for determining the appearance of the PDP module is formed to manufacture a plasma display device as a finished product.

FIG. 2A is a view illustrating a coupling state of a supporter bracket and a driving circuit board installed in a frame of a conventional plasma display device.

As shown in FIGS. 2A and 2B, a supporter bracket 11 and a boss 19 are formed on the frame 10 for dissipating heat generated during driving to the outside and supporting the plasma display panel, and the frame 10 is formed. The boss 19 formed on the upper side is coupled to the driving circuit board 15 by the fastening means 17.

The supporter bracket 11 is formed by extruding on the frame 10 or by fastening means such as a screw fastened to a fastener formed at a lower end contacting the frame 10, and driving circuit board 15. Fastener 12 is formed on the top for fastening with.

Such a supporter bracket 11 not only reinforces the frame 10 but also combines with the PDP package to enable stable transport during transportation. In addition, the supporter brackets 11 are formed at four corners of the upper portion and the lower portion of the frame 10 spaced apart from each other by a predetermined distance.

The boss 19 is press-pressed to the frame 10 at a position corresponding to the driving circuit board 15 for fastening with the driving circuit board 15.

However, the plasma display device having the conventional structure has a problem in that the manufacturing process is complicated and the manufacturing cost increases because the plasma display device is combined with the driving circuit board by using a plurality of bosses formed on the frame.

In addition, the driving circuit board coupled to the boss formed in the frame through the fastening means is formed to be spaced apart from the supporter bracket by a predetermined distance, thereby reducing the ground area of the driving circuit board.

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an object of the present invention is to provide a flat panel display device which can facilitate coupling with a driving circuit board by changing a structure of a supporter bracket formed in a frame.

According to an aspect of the present invention, there is provided a flat panel display device including a frame supporting a flat panel display panel and a supporter bracket formed on the frame and coupled to a driving circuit board, wherein the driving circuit is provided on at least one side of the supporter bracket. Characterized in that the coupling portion is formed for coupling with the substrate.

The frame further includes a boss, one end of the driving circuit board is coupled to the coupling portion, and the other end is coupled to the boss.

In addition, the frame is characterized in that at least one ground protrusion is formed in contact with one surface of the driving circuit board.

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

<Example 1>

3A is a view illustrating a coupling state of a supporter bracket and a driving circuit board installed in a frame according to an embodiment of the present invention.

As shown in FIG. 3A, a supporter bracket 21, a boss 28, and a ground protrusion 27 are formed in a frame 20 for dissipating heat generated during driving to the outside and supporting the plasma display panel. The driving circuit board 25 is connected to and fixed to the supporter bracket 21 and the boss 28 to be coupled to the frame 20. At this time, the ground protrusion 27 formed in the frame 20 is formed at the same height as the boss 28 corresponding to the central portion of the driving circuit board 25.

  The supporter bracket 21 is formed long in the longitudinal direction of the panel in the vicinity of the four corners of the upper portion and the lower portion of the frame 20, respectively.

One end of the driving circuit board 25 is coupled to the supporter bracket 21, and the other end thereof is coupled to the boss 28 by the fastening means 29 and coupled to the frame 20.

The coupling state of the supporter bracket and the driving circuit board having the coupling structure will be described in more detail with reference to FIG. 3B.

3B is a cross-sectional view of the plasma display device taken along the line B-B of FIG. 3A.

As shown in FIG. 3B, the coupling part 24 is formed on at least one side of the supporter bracket 21 formed on the frame 20, and the coupling part 24 of the driving circuit board 25 is formed. One end is inserted and fixed is coupled to the frame 20.

At this time, the other end of the driving circuit board 25 is fastened to the boss 28 formed on the frame 20, the fastening means 29 is coupled to the frame 20.

In addition, one end of the frame 20 is inserted into the supporter bracket 21 of the frame 20, and the other end of the frame 20 corresponds to the center of the driving circuit board 25 fixedly coupled by the boss 28. A ground protrusion 27 is formed.

Since the ground protrusion 27 has one end of the driving circuit board 25 inserted into and fixed to the coupling part 24 of the supporter bracket 21, the number of bosses 28 is relatively small on the frame 20. It is possible to form a large ground area. Therefore, when the area of the ground protrusion 27 is enlarged, the ground portion of the circuit board 25 may be widened to reduce EMI and to improve circuit characteristics. In addition, since the ground protrusion 27 is formed at the same height as the boss 28 at the center portion where the driving circuit board 25 is engaged with the frame 20, there is also an effect of supporting and fixing the driving circuit board.

<Other Embodiments>

4A is a view illustrating a coupling state of a supporter bracket and a driving circuit board installed in a frame according to another embodiment of the present invention.

As shown in FIG. 4A, the supporter brackets 31 and 36, the boss 33, and the ground protrusion 37 are disposed in the frame 30 for releasing heat generated during driving to the outside and supporting the plasma display panel. The driving circuit board 35 is formed and connected to the supporter brackets 31 and 36 to be coupled to the frame 30. At this time, the ground protrusion 37 formed in the frame 30 corresponds to the central portion of the driving circuit board 35.

The supporter brackets 31 and 36 are each formed long in the longitudinal direction of the panel in the vicinity of the four corners of the upper part and the lower part of the frame 30.

One end of the driving circuit board 35 is coupled to the supporter bracket 31 formed at the upper portion of the frame 30, and the other end is coupled to the supporter bracket 36 formed at the lower portion of the frame 30.

Here, the driving circuit board 35 is coupled to only the supporter brackets 31 and 36 formed at upper and lower portions of the frame 30 at both ends thereof, and is fixed to the frame 30 or connected to the supporter brackets 31 and 36. The predetermined portion of the scene of the driving circuit board 35 which is not provided may be coupled to the boss by fastening means (not shown) and fixed together to the frame 30.

The coupling state of the supporter bracket and the driving circuit board having the coupling structure will be described in more detail with reference to FIG. 4B.

4B is a cross-sectional view of the plasma display device taken along the line C-C of FIG. 4A.

As shown in FIG. 4B, the upper supporter bracket 31 formed on the frame 30 has a coupling part 34 formed in the inward direction of the frame 30, and the lower supporter bracket 36 also includes the frame 30. Coupling portion 39 is formed in the inward direction. Both ends of the driving circuit board 36 are inserted into and fixed to the coupling parts 34 and 39 and are coupled to the frame 30.

At this time, when the driving circuit board 35 is fixed to the frame 30 only by the coupling part 34 of the upper supporter bracket 31 and the coupling part 39 of the lower supporter bracket 33, the driving circuit board 35 is fixed. Since the central portion of the c) may be damaged by being exposed to external pressure, the ground protrusion 37 is formed in the frame 30 corresponding to the central portion of the driving circuit board 35.

The ground protrusion 37 has a boss formed on the frame 30 because the driving circuit board 35 is inserted into the coupling parts 34 and 39 of the supporter brackets 31 and 36 to be coupled to the frame 30. As a result, the ground part can be formed widely. Thus, EMI and circuit characteristics can be improved.

In addition, the ground protrusion 37 supports a central portion of the driving circuit board 35 coupled to the supporter brackets 31 and 36 to minimize damage due to shaking and impact of the driving circuit board 35.

<Other Embodiments>

5A is a view illustrating a coupling state between a supporter bracket and a driving circuit board installed in a frame according to another embodiment of the present invention.

As shown in FIG. 5A, a supporter bracket 41, a boss, and a ground protrusion 47 are formed in a frame 40 for dissipating heat generated during driving to the outside and supporting the plasma display panel, and a driving circuit board. 45 is fixed to the supporter bracket 41 is coupled to the frame 40. At this time, the ground protrusion 47 formed on the frame 40 corresponds to the central portion of the driving circuit board 45.

The supporter brackets 41 are formed near and at the centers of the four corners of the upper and lower portions of the frame 40, respectively.

Here, the supporter bracket 41 formed at the center portion of the frame 40 has coupling portions 44 and 44 'formed at both sides thereof to insert and fix the two driving circuit boards 45 and 46.

5B is a cross-sectional view of the plasma display device taken along the line D-D of FIG. 5A.

As shown in FIG. 5B, the supporter bracket 41 formed at the center of the frame 40 has coupling parts 44 and 44 'at both sides thereof, thereby coupling two driving circuit boards 45 and 46 to each other. It is inserted into and fixed to the sections 44 and 44 '.

At this time, since the central portions of the driving circuit boards 44 and 44 'may be damaged by being exposed to external pressure, the ground protrusions 47 are formed in the frame corresponding to the central portions of the driving circuit board.

The ground protrusion 47 has one end of the driving circuit boards 45 and 46 inserted into the coupling parts 44 and 44 'of the supporter bracket 41 to be coupled to the frame 40 so that the boss is formed on the frame 40. As a result, it is possible to form a wide ground at the end. Thus, EMI and circuit characteristics can be improved.

On the other hand, a plurality of ground protrusions 27, 37, 47 according to an embodiment of the present invention may be installed to improve the EMI reduction efficiency.

Thus, according to the embodiments of the present invention by forming a slot on the side of the supporter bracket formed on the frame, and inserting and fixing the driving circuit board in the slot to combine with the frame, there is no separate fastening means to reduce the manufacturing cost In addition, by inserting the end portion of the driving circuit board into the slot and engaging with the frame, the manufacturing method is made easier.

Those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. Therefore, the above-described embodiments are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the appended claims rather than the detailed description, and the meaning and scope of the claims and All changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

As described above, the present invention has an effect that can achieve a simple configuration by securing the installation space of the drive device.

In addition, according to the present invention, the supporter brackets are installed at the corners of the flat panel display device, respectively, so that the driving circuit unit is not limited to the frame, and the power supply is installed at the center of gravity of the frame to be stably transported. And, since the length of the supporter bracket is formed small, there is an effect that can reduce the manufacturing cost.

Claims (3)

A frame supporting the flat panel display panel; A supporter bracket formed on the frame and coupled to a driving circuit board, And a coupling part formed on at least one side of the supporter bracket for coupling with the driving circuit board. The method of claim 1, The frame further comprises a boss, One end of the driving circuit board is coupled to the coupling portion, the other end is coupled to the boss. The method of claim 1, And at least one ground protrusion in contact with one surface of the driving circuit board in the frame.

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