KR100696837B1 - Driving board assembly of Plasma display module and plasma display module having the same - Google Patents

Abstract

The present invention provides a drive board assembly in which a drive board for driving a plasma display panel is made of metal, thereby simplifying an assembly process and performing an electrical grounding function of the drive board through the drive board assembly. Plasma display module provided has an effect of improving the assembly productivity by integrally forming a mounting portion in the chassis base to easily install the drive board assembly manufactured in a standardized shape and size.

Driveboard Assembly, Plastic Chassis Base, Packing

Description

Driving board assembly for plasma display module and plasma display module having same {Driving board assembly of Plasma display module and plasma display module having the same}

1 is an exploded perspective view of a plasma display module according to the present invention.

Figure 2 is a cross-sectional view taken along the line A-A of Figure 1 for explaining an embodiment of a drive board assembly for a plasma display module of the present invention.

3 is a cross-sectional view showing another embodiment of FIG.

Figure 4 is a cross-sectional view showing an embodiment of the mounting portion formed in the chassis base according to the present invention.

5 is a cross-sectional view showing another embodiment of FIG.

<Description of Symbols for Main Parts of Drawings>

10; Plasma display panel 30; Chassis base

32; Mounting groove 34; Breakaway Jaw

40; Drive board assembly 42; packing

44; Boss 46; Drive board

48; Heatsink

The present invention relates to a plasma display module, and more particularly, to a drive board assembly for improving the assemblability of a drive board mounted on a chassis base to drive a plasma display panel and enabling electrical grounding of the drive board. It relates to a plasma display module provided.

In general, a plasma display device obtains a plasma by performing a gas discharge while a discharge gas is injected into a discharge space formed between two opposing substrates, and emits visible light emitted by a phosphor excited by ultraviolet rays generated therefrom. A flat panel display device using a Plasma Display Panel (PDP) (hereinafter referred to as “panel”) for realizing an image by using the same.

Such a plasma display device can be formed to have a thin thickness compared to a CRT display device having a large volume, which is suitable for realizing a large screen having a relatively small volume and light weight. In addition, compared with other flat panel display devices such as LCDs, it is not necessary to form active elements such as transistors, and has a wide viewing angle and high luminance.

On the other hand, due to the recent development of circuit and panel technology, as the module becomes low power and the generation of electromagnetic waves and heat generation are decreasing, the development to replace the expensive aluminum chassis base with a low cost material is being made continuously. There is a growing interest in reducing the cost of materials and reducing the weight of plastic chassis bases.

However, when the chassis base made of plastic is applied to the plasma display module, it is difficult to secure the grounding means of the driving board mounted on the rear side of the chassis base as compared to the chassis base made of metal.

In addition, the driving board generally has a problem that workability is significantly reduced when assembling the driving board on the rear of the chassis base. In other words, fixing the boss to the rear of the chassis base, and fastening the driving board to the boss requires assembly time and concentration of work, which is an obstacle to improving workability.

SUMMARY OF THE INVENTION An object of the present invention devised in view of the above problems is to provide a drive board assembly for a plasma display module packed into a chassis base for easy installation.

Another object of the present invention is to provide a drive board assembly for a plasma display module that facilitates securing a grounding means of a drive board applied to a chassis base made of plastic.

Another object of the present invention to provide a plasma display module to improve the workability by using the drive board assembly for the plasma display module.

The drive board assembly for a plasma display module according to the present invention for achieving the above object is a packing installed in the rear of the chassis base for supporting the plasma display panel for displaying an image; A boss fixed to the inside of the packing; And a driving board fastened to the boss and mounted on the packing. The packing is formed in a box type having an open top with a bottom plate and sidewalls extending upward from an edge of the bottom plate, but need not be limited to this shape. In addition, the packing is formed of a metal material, the grounding part of the drive board is electrically connected to the packing and grounded, further provided with a lid covering the opening of the packing can be expected a shielding effect.

In addition, the plasma display module according to the present invention includes a plasma display panel in which an image is implemented; A chassis base installed to support the opposite side of the image display unit of the plasma display panel and formed of a plastic material; And a driving board assembly formed on a rear surface of the chassis base, the driving board assembly including a metal packing on which a driving board having a plurality of circuits connected to a plasma display panel and a signal line to drive the plasma display panel is mounted. The rear surface of the chassis base is characterized in that for forming a mounting portion for mounting the drive board assembly. The mounting portion is preferably formed in the form of a groove on the rear of the chassis base, the separation prevention jaw may be further formed on the upper edge of the mounting portion.

In addition, the plastic for manufacturing the chassis base is formed by selecting at least one or more of the thermosetting resin or thermoplastic resin, the thermosetting resin or thermoplastic resin may further include a reinforcing material.

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

As shown in FIG. 1, a driving board, which is generally connected to the plasma display panel 10 that implements an image and generates a driving signal, is installed on a surface opposite to the panel supporting surface of the chassis base 30. At this time, the drive board assembly 40 according to the present invention is configured to be installed by mounting the drive board to the metal packing rather than directly installed on the chassis base.

As shown in FIG. 2, the driving board assembly 40 includes a metal packing 42 formed in a box type having an open top and a boss 44 fixed to an inner bottom of the packing 42. And a driving board 46 fastened to the boss 42 and equipped with a plurality of driving circuits.

The packing 42 is composed of a bottom plate 42A and sidewalls 42B extending upward from four sides of the bottom plate 42A, and the upper portion is formed in a box type in an open state. The shape of the bottom plate 42A of the packing 42 is not limited to that shown, but is determined by the shape of the conventional drive board 46. At this time, the side wall 42B protects the driving board 46 from external impact.

The boss 44 is press-fitted into the bottom plate 42A of the packing 42 formed of a metal material, and electrically connected to the ground portion of the driving board 46 to connect the ground path of the driving board 46. Form.

The drive board 46 is fixed to the screw 44 is fastened to the boss (44).

The drive board assembly 40 according to an embodiment of the present invention configured as described above is assembled to the chassis base in a state in which the drive board 46 is pre-assembled through the boss 44 inside the packing 42. Therefore, a separate assembly work for screwing the drive board to the chassis base is eliminated to improve workability.

In addition, since the packing 42 is formed of a metal material, a grounding part (not shown) of the pre-assembled driving board 46 is assembled in an electrically connected state through the boss 44, and thus requires a separate grounding member. You will not.

On the other hand, when the chassis base is formed of a metallic material, since the grounding can be performed directly on the chassis base of the metallic material, it is not necessary to form the packing 42 by a metallic material.

As another embodiment of the drive board assembly 40 according to the present invention, as shown in Figure 3, the lid 42C for shielding the formed opening of the upper portion of the packing 42 is further installed, the drive board ( The heat sink 48 is provided on the upper surface of the 46.

As such, when the lid 42C is installed at the opening of the packing 42, noise, vibration, and electromagnetic waves generated by the driving board 46 are reduced. In addition, the heat dissipation performance of each of the driving circuits may be improved by the heat dissipation plate 48 provided on the upper surface of the driving board 46.

The plasma display module to which the driving board assembly for plasma display module according to the present invention as described above is applied will be described with reference to FIG. 1.

Plasma display module according to an embodiment of the present invention is provided to support the plasma display panel 10 and the opposite side of the image display surface of the plasma display panel 10 is implemented, the chassis is formed of a plastic material A driving board fixed to the base 30 and the rear of the chassis base 30 and connected to the plasma display panel 10 and the signal line 50 to drive the plasma display panel 10 is equipped with a plurality of circuits. It is configured to include a drive board assembly 40 is installed 46.

The plasma display panel 10 is formed by attaching front and rear substrates 12 and 14, and a discharge space is formed between the substrates 12 and 14.

An adhesive member 20 such as a double-sided tape for attaching the chassis base 30 is attached to the rear edge of the plasma display panel 10. In addition, the rear surface of the plasma display panel 10 is attached with a thermal conductive sheet 22 for dissipating heat generated when the panel is driven.

In the present invention, the mounting portion for installing the drive board assembly 40 is formed on the rear of the chassis base (30).

1 and 4, the mounting portion has a form of a mounting groove 32 in which a lower portion of the packing 42 of the driving board assembly 40 is fitted into the rear surface of the chassis base 30. Is formed. Alternatively, the mounting portion may be formed in the form of a protrusion protruding upward from the surface of the chassis base. Since the chassis base 30 is manufactured by injection molding, the shape of the mounting portion may be easily formed. There is no need to limit it.

In addition, as shown in Figure 5, the mounting groove 32 formed in the rear of the chassis base 30 is formed in a depth that can be completely inserted into the drive board assembly 40 because the thickness of the chassis base is thin. It's hard to be. Therefore, in order to maintain the state in which the driving board assembly 40 is mounted on the mounting groove 32, a separation prevention jaw 34 may be further formed on the top edge of the mounting groove 32.

4 and 5, the drive board assembly 40 according to the present invention is simply installed in the mounting groove 32 formed on the rear of the chassis base 30, the productivity of the assembly operation is significantly improved.

As the plastic used as a material for manufacturing the chassis base 30 as described above, polypropylene, polyamide, or the like, which is a thermoplastic resin, may be used, or phenol or epoxy, which is a thermosetting resin, may be used. In addition, such a resin may be prepared by mixing two or more compositions, and may be manufactured by mixing a reinforcing material containing a resin material as a main component and an aromatic nylon fiber such as glass fiber, carbon fiber, and kevlar, thereby securing rigidity for supporting the panel. Of course, it is possible to prevent the bending or deformation of the chassis base in the pocket formed state.

As described above, the present invention is not limited to the above embodiments, and any person having ordinary skill in the art to which the present invention pertains can make various modifications without departing from the gist of the present invention as claimed in the claims. Of course, such changes are within the scope of the claims.

As described above, the drive board assembly for a plasma display module according to the present invention can be mass-produced according to the size of the standardized drive board, thereby improving assembly performance while reducing manufacturing costs. In addition, when applied to the chassis base of the plastic material there is an effect that can be grounded by a packing made of a metallic material.

In addition, the plasma display module according to the present invention has an effect of remarkably improving workability by providing a mounting portion for mounting the drive board assembly.

Claims (9)

A packing having a bottom plate and an upper side having a sidewall extending upward from an edge of the bottom plate and formed in an open box type to be installed at a rear surface of the chassis base supporting the plasma display panel; A boss fixed to an upper surface of the bottom plate of the packing; And And a driving board fastened to the upper end of the boss. delete The method of claim 1, And a lid for covering the opening of the packing. The method according to claim 1 or 3, The packing is formed of a metal material drive board assembly for a plasma display module, characterized in that the ground portion of the drive board is electrically connected to the packing and grounded. A plasma display panel on which an image is implemented; A chassis base installed to support the opposite side of the image display unit of the plasma display panel and formed of a plastic material; And A packing which is formed in an open box type having a bottom plate and a sidewall extending upward from an edge of the bottom plate and installed on a rear surface of the chassis base supporting the plasma display panel; And a driving board assembly including a fixed boss and a driving board fastened to an upper end of the boss. Plasma display module, characterized in that the rear portion of the chassis base to form a mounting portion for mounting the drive board assembly. The method of claim 5, The mounting unit is a plasma display module, characterized in that formed in the form of a groove on the back of the chassis base. The method of claim 6, The mounting portion plasma display module, characterized in that the separation prevention jaw is further formed on the upper edge. The method of claim 5, The plastic for manufacturing the chassis base is plasma display module, characterized in that formed by at least one selected from a thermosetting resin or a thermoplastic resin. The method of claim 8, Plasma display module, characterized in that the thermosetting resin or thermoplastic resin further comprises a reinforcing material.

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