KR100592259B1 - Plasma display device - Google Patents

Abstract

The present invention is to maintain the stiffness of the chassis base while reducing the number of the toxing part, the plasma display panel to implement the image, the chassis base coupled to the back of the plasma display panel, and the tossing of the chassis base, The boss is coupled to the plasma display device, characterized in that it comprises a plurality of bracket holders are formed in a diagonal direction toward the center portion of the chassis base.

Description

Plasma display device

1 is an exploded perspective view showing a plasma display device according to an embodiment of the present invention;

FIG. 2 is an exploded perspective view illustrating the plasma display panel of FIG. 1;

Figure 3 is a perspective view of the bracket holder of Figure 1,

4A to 4H are rear views illustrating the fourth bracket holders of the comparative examples and the examples;

5 is a rear view illustrating the chassis base of FIG. 1;

6 is a graph showing the relative strain of the chassis base center of the comparative examples and the example.

<Description of Symbols for Main Parts of Drawings>

1: chassis base 2: plasma display panel

21: front substrate 22: back substrate

3: Bracket holder 3a, 3b, 3c, 3d: 1, 2, 3, 4 bracket holder

31, 32: first and second connection part 33: boss fastening part

34: connection part 35: toxing part

4: boss

The present invention relates to a plasma display device, and more particularly, to a plasma display device capable of reducing the number of toxing portions of a bracket holder.

The plasma display device is a flat panel display device that displays an image using a gas discharge phenomenon, and is excellent in various display capacities such as display capacity, brightness, contrast, afterimage, and viewing angle. In addition, it is attracting attention as a next-generation flat panel display device that can replace a CRT because of its thin and large-screen display.

The plasma display apparatus includes a plasma display panel in which an image is embodied and a chassis base provided on a rear side of a circuit portion necessary for driving the plasma display panel, and includes a cabinet for accommodating the plasma display panel and the chassis base.

The plasma display panel includes first and second substrates facing each other to form a discharge space, a plurality of pairs of discharge sustaining electrodes provided on the first substrate, a plurality of address electrodes provided on the second substrate, and The partition wall which partitions a discharge space into a some discharge cell is provided.

In the plasma display apparatus configured as described above, gray scale can be expressed by selectively discharging discharge cells, and therefore, various colors can be realized. To this end, a drive element is mounted and electrically connected to the address electrodes so that sequentially controlled signals are applied to the plurality of address electrodes.

However, in such a plasma display panel, the panel is bonded to the chassis base and coupled to the case. The chassis base is formed of an aluminum material having good thermal conductivity for heat dissipation of the plasma display panel, and is configured to have a predetermined rigidity so that the panel can be supported by the case. In addition, a circuit board on which various electronic components are mounted is coupled to the chassis base.

The plasma display device provided as described above may be used in the form of standing on a floor or fixed to a wall. In order to fix on a wall, a wall hanging member is installed, and the wall hanging member is mounted on a fixing member fixed to a wall.

In order to mount the wall mount member, a bracket holder having a boss is installed at the chassis base, and the wall member is coupled to the boss of the bracket holder.

By the way, according to the conventional mounting structure, the load of the plasma display device is concentrated on the coupling surface of the chassis base through the bracket holder, so that the stress concentration phenomenon appears in the chassis base, thereby increasing the deformation amount of the chassis base, In addition, there is a risk that the chassis base is broken. Therefore, in fixing the bracket holder to the chassis base, the stress concentration on the chassis base should be minimized.

On the other hand, the bracket holder is normally coupled to the chassis base by a toxing (toxing) process, the more the toxing portion, the more rigid maintenance side of the chassis base is improved, but a lot of work is required, there is a problem that productivity is lowered.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a plasma display device capable of maintaining the stiffness of the chassis base while reducing the number of toxins.

In order to achieve the above object and other objects, the present invention,

A plasma display panel on which an image is implemented;

A chassis base coupled to a rear surface of the plasma display panel; And

And a plurality of bracket holders, each of which has a boss coupled thereto and wherein the toxing portion is formed in a diagonal direction toward the center of the chassis base.

The bracket holder includes a pair of joining parts, a boss fastening part spaced apart from the chassis base by a predetermined distance, a connecting part connecting the joining part and the boss fastening part, the toxing part is provided at the joining part, and the boss is the boss fastening part. Can be coupled to the part.

The toxing portion may be formed at a portion adjacent to the center portion of the junction portion adjacent to the center of the chassis base, and at a portion far from the center portion at the junction portion far from the center portion of the chassis base.

The toxing portion is formed at the junction adjacent to the center of the chassis base of the junction, at the edge toward the center of the junction and the center of the chassis base, and at the junction away from the center of the chassis base, at the junction of the junction and far from the center of the chassis base. It may be to be formed on the edge.

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

1 is an exploded perspective view showing a plasma display device according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing a part of the plasma display panel of FIG.

Referring to FIG. 1, the plasma display apparatus according to the present invention includes a plasma display panel 2 and a chassis base 1 for fixing the panel 2 and providing rigidity. The panel 2 and the chassis base 1 are housed in a rear case (not shown), and a front case (not shown) coupled to the rear case in the front direction of the panel 2 is assembled. An infrared ray and electromagnetic wave shielding filter member may be further disposed between the panel 2 and the front case.

In the plasma display panel 2 mounted on the plasma display apparatus according to the preferred embodiment of the present invention, as shown in FIG. 2, the front substrate 21 and the rear substrate 22 are disposed to face each other. Discharge gas such as neon or xenon is filled between the front and rear substrates 21 and 22 to form a discharge space, and the edges of the substrates are sealants such as flit glass (not shown). Sutured and joined).

As shown in FIG. 2, the plasma display panel 2 includes a pair of front and rear substrates 21 and 22 facing each other, and an address electrode formed in a predetermined pattern on the rear substrate 22. A) and dielectric layer 27 are sequentially formed, and partition wall 28 is formed on this dielectric layer 27 to maintain the discharge distance and prevent electro-optical crosstalk between the pixels. The phosphor layer 29 is formed on at least one side in the discharge space partitioned by the partition wall 28.

In the front substrate 21 coupled to the rear substrate 22, X electrodes 23 and Y electrodes 24 having a predetermined pattern are arranged in pairs to be orthogonal to the address electrode A. FIG. The X electrode 23 and the Y electrode 24 are each provided with transparent electrodes 23a, 24a and bus electrodes 23b, 24b. The X electrodes 23 and the Y electrodes 24 serve as sustain electrodes that cause sustain discharges. The portions where the sustain electrodes and the address electrodes A intersect form one cell.

In addition, a dielectric layer 25 in which the X electrode 23 and the Y electrode 24 are embedded is formed on the bottom surface of the front substrate 21, and an MgO layer 26 is formed under the front substrate 21. A predetermined gas is injected into the discharge space partitioned by the front substrate 21 and the rear substrate 22 as described above.

In the plasma display panel 2 configured as described above, as voltage is applied to any one of the address electrode A and the X electrode 23 and the Y electrode 24, an address discharge occurs between the front substrate 21. Charged particles are formed on the lower surface of the dielectric layer 25 (strictly, the lower surface of the MgO layer 26). In this state, sustain discharge is performed. The sustain discharge is generated on the surface of the dielectric layer 25 of the front substrate 21 by applying a predetermined voltage between the X electrode 23 and the Y electrode 24 of the corresponding cell. At this time, the phosphor is excited by ultraviolet rays formed by plasma formation in the gas layer to form a pixel.

In the plasma display panel, a black stripe may be formed as a black insulator between pairs of the X and Y electrodes 23 and 24 to improve contrast.

The plasma display panel 2 as described above is not necessarily limited to the above structure, and the present invention is applicable to all plasma display panels.

The chassis base 1 is bonded to the rear substrate 22 of the plasma display panel 2.

The chassis base 1 is formed of an aluminum plate-like material for supporting and dissipating the plasma display panel 2, and thermoelectric is provided to assist heat dissipation between the chassis base 1 and the plasma display panel 2. A heat dissipation sheet (not shown) composed of a conductive member may be further interposed.

In addition, although not shown in FIG. 1, a plurality of bosses may be formed in the chassis base 1 so that circuit boards (not shown) may be mounted on the bosses. Electronic circuits are mounted on these circuit boards so as to drive the plasma display panel 2.

On the other hand, a plurality of bracket holders 3 are bonded to the chassis base 1 as described above. The boss 4 is fastened to the bracket holder 3. The bracket holder 3 may be used to couple a wall hanging member (not shown) for fixing the plasma display device to a wall, but is not limited thereto.

Such a bracket holder 3 can usually be made of stainless steel, and the bracket rollers 3 are fastened to the chassis base 1 by a toxing process. According to a preferred embodiment of the present invention according to FIG. 1, the bracket holder 3 is a first bracket holder 3a to a fourth bracket holder 3d formed one by four at the corners of the chassis base 1. Although provided, but the present invention is not necessarily limited thereto.

Meanwhile, the bracket holder 3 may be bent as shown in FIG. 3 and may be formed of first and second joint parts 31 and 32, a boss fastening part 33, and a connection part 34. The first and second joining portions 31 and 32 are portions joined to the rear surface of the chassis base 1, and the boss fastening portions 33 are spaced apart from the rear surface of the chassis base 1 by a predetermined interval so that the bosses 4 are separated. It becomes a part to be fastened. The first and second joint parts 31 and 32 and the boss fastening part 33 are connected by the connection part 34. As described above, the toxing part 35 joined to the rear surface of the chassis base 1 is positioned at the first and second joining parts 31 and 32. In addition, as shown in FIG. 1, when four bracket holders 3 exist at each corner of the chassis base, a joint closer to the center of the chassis base becomes the first joint 31, and a joint farther from the center portion. It becomes the 2nd junction part 32. FIG. Of course, this does not apply when the first and second junctions 31 and 32 are equal in distance to the center of the chassis base 1.

According to the present invention, the bracket holders 3 are arranged in a diagonal direction toward the center of the chassis base 1 to the toxing part fastened to the chassis base 1, thereby reducing the deformation of the chassis base 1 while reducing the toxing part. Prevented.

That is, the toxing part provided in the first joint part 31 adjacent to the center part of the chassis base 1 among the joint parts is formed to be closer to the center part of the chassis base 1 at the first joint part 31, and the chassis base The second joining portion 32 far from the center of (1) is formed at a portion farther from the center portion of the chassis base 1 in the second joining portion 32.

More preferably, as shown in FIG. 3, the toxing portion 35 is formed at the end portion adjacent to the center portion of the first bonding portion 31 and the center portion of the chassis base, respectively, and the second bonding portion 32 is formed. Is formed at the end far from the center and the center of the chassis base. In this case, the amount of deformation in the center portion of the chassis base may be substantially the same as the case where a plurality of toxins are uniformly formed, while reducing the number of toxing portions, thereby reducing productivity.

To illustrate this in more detail, Examples and Comparative Examples of the present invention are shown as shown in FIGS. 4A to 4H.

The bracket holders shown in Figs. 4A to 4H all show the fourth bracket holder 3d. Here too, the ground part adjacent to the center part of the chassis base was made into the 1st ground part 31, and the ground part remote from the center part of the chassis base was made into the 2nd ground part 32. As shown in FIG.

First, FIG. 4A illustrates Comparative Example 1 in which the toxing part 35 is formed to be symmetrical to each of the first ground part 31 and the second ground part 32. FIG. 4B shows Comparative Example 2 in which one toxing part 35 is formed at each end of each of the first ground part 31 and the second ground part 32.

In FIG. 4C, the first grounding portion 31 is formed with one toxing portion 35 at each end far from the center portion and the chassis base portion, and the second ground portion 32 has an end portion adjacent to the center portion and the center portion of the chassis base. The comparative example 3 in which one toxing part 35 is formed in each is shown.

In FIG. 4D, the first grounding portion 31 is provided with one toxing portion 35 at each end adjacent to the center portion and the chassis base portion, and the second ground portion 32 has an end portion far from the center portion and the center portion of the chassis base. An embodiment in which one toxing part 35 is formed in each is shown.

FIG. 4E shows a comparative example 4 in which the first grounding portion 31 has one toxing portion 35 in the center portion, and the second grounding portion 32 has one toxing portion at each end.

FIG. 4F shows a comparative example 5 in which the first grounding portion 31 has one toxing portion 35 at each end thereof, and the second grounding portion 32 has one topping portion formed at the center thereof.

In FIG. 4G, the first grounding portion 31 is formed with one toxing portion 35 at the end far from the center of the chassis base, and the second grounding portion 32 has one torching portion at the end adjacent to the center portion of the chassis base. The comparative example 6 in which 35) was formed is shown.

In FIG. 4H, one toxing part 35 is formed at the end adjacent to the center of the chassis base at the first ground part 31, and one topping part is formed at the end far from the center of the chassis base at the second ground part 32. The comparative example 7 in which 35) was formed is shown.

The relative strains of the center portion of the chassis base were measured based on Comparative Example 1 for these Comparative Examples 1 to 7 and Examples.

As can be seen in Figure 6, Comparative Example 2 to Comparative Example 7 can be seen that the strain is higher than Comparative Example 1, on the contrary, in the case of Example it can be seen that has a level of strain almost the same as Comparative Example 1 have.

Therefore, in the case of the present invention, it is possible to reduce the number of toxing portions and to reduce the strain at the center of the chassis base. However, in the case of Comparative Example 7, although the toxing portion was disposed diagonally toward the center portion of the chassis base as in the present invention, the number of the toxing portions was too small and the strain was large. Therefore, in order to obtain the effect of the present invention, as in the case of the embodiment, it is preferable that at least two toxing portions are provided in each of the first and second ground portions.

Although only the fourth bracket holder 3d has been described above, it can be applied to all of the first to fourth bracket holders 3a, 3b, 3c, and 3d as shown in FIG. 5. . At this time, the toxing portions 35 are disposed diagonally toward the center of the chassis base 1.

According to the present invention as described above, the following effects can be obtained.

First, reducing the number of toks to the bracket holder is coupled to the chassis base can reduce the labor, thereby improving productivity.

Second, despite reducing the number of toks, the stiffness of the chassis base can be maintained.

Although the present invention has been described with reference to the embodiments illustrated in the accompanying drawings, it is merely exemplary, and various modifications and equivalent other embodiments are possible from those skilled in the art to which the present invention pertains. You will understand the point. Therefore, the true scope of protection of the present invention should be defined by the appended claims.

Claims (4)

A plasma display panel on which an image is implemented; A chassis base coupled to a rear surface of the plasma display panel; And And a plurality of bracket holders, each of which has a boss coupled thereto and wherein the toxing portion is formed diagonally toward the center of the chassis base. The method of claim 1, The bracket holder includes a pair of joining parts, a boss fastening part spaced apart from the chassis base by a predetermined distance, a connecting part connecting the joining part and the boss fastening part, the toxing part is provided at the joining part, and the boss is the boss fastening part. And a plasma display device coupled to the unit. The method of claim 2, And said toxing portion is formed in a portion adjacent to the center portion of the junction portion adjacent to the center portion of the junction portion, and is formed in a portion farther from the center portion at a junction portion farther from the center portion of the chassis base. The method of claim 3, The toxing portion is formed at the junction adjacent to the center of the chassis base of the junction, at the edge toward the center of the junction and the center of the chassis base, and at the junction away from the center of the chassis base, at the junction of the junction and far from the center of the chassis base. Plasma display device, characterized in that formed on the edge.

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