KR20060102007A - Chassis base assembly and plasma display panel assembly using the same - Google Patents

Abstract

A chassis base assembly and a plasma display assembly employing the same are disclosed. The present invention includes a panel assembly having a front panel and a rear panel disposed to face the panel, and applying a predetermined power to a plurality of discharge electrodes to implement an image; A chassis base assembly having a chassis base formed by stacking dissimilar materials thereof, and a driving circuit unit coupled to a rear side thereof, the driving circuit unit transmitting an electrical signal to a discharge electrode terminal by a flexible printed cable; and a panel assembly and a chassis base assembly. As including the case; the chassis base has a structure in which a metal plate and a plurality of polymer resin plates are laminated, so that mechanical strength is reinforced.

Description

Chassis base assembly and plasma display panel assembly using the same

1 is a cross-sectional view showing a portion of a conventional plasma display assembly;

2 is an exploded perspective view illustrating a plasma display assembly according to an embodiment of the present invention;

3 is a cross-sectional view partially illustrating a state in which the plasma display assembly of FIG. 2 is coupled;

4 is a partial cross-sectional view showing the chassis base according to the first embodiment of the present invention;

5 is a partial cross-sectional view showing a chassis base according to a second embodiment of the present invention;

6 is a partial cross-sectional view showing a chassis base according to a third embodiment of the present invention;

7 is a partial cross-sectional view showing a chassis base according to a fourth embodiment of the present invention.

<Brief description of symbols for the main parts of the drawings>

200 ... plasma display assembly 210 ... panel assembly

220 ... chassis base 240 ... drive circuit

250 ... flexible printed cable 260 ... chassis reinforcement

270 ... cover plate

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display assembly, and more particularly, to a chassis base assembly that manufactures a chassis base using a plurality of dissimilar materials and improves various characteristics along with strength reinforcement, and a plasma display assembly employing the same. .

In general, the plasma display assembly includes a plurality of discharge electrodes formed on opposite surfaces of a plurality of substrates, and a predetermined amount of power is applied in a state in which discharge gas is injected into a discharge space therebetween. A flat display panel which displays an image using light emitted by exciting a fluorescent material.

Such a plasma display assembly manufactures front and rear panels, respectively, and couples them together, assembles a chassis base at the rear of the panel assembly, and couples a driving circuit unit capable of transmitting electrical signals with the panel assembly at the rear of the chassis base, It is manufactured by mounting the panel assembly, chassis base and drive circuitry in the case.

Referring to FIG. 1, a conventional plasma display assembly 100 includes a front panel 110, a panel assembly 110 having a back panel 112 coupled thereto, and an adhesive member 120. The chassis base 130 coupled to the panel assembly 110, the chassis reinforcement member 140 attached to upper and lower ends of the rear surface of the chassis base 130, and the driving circuit unit 150 coupled to the rear surface of the chassis base 130. ), A flexible printed cable 160 which electrically connects the chassis base 130 and the driving circuit unit 150, and a cover plate coupled to the chassis base 130 at a predetermined interval. 170).

In the conventional plasma display assembly 100 having the above structure, visible light is emitted from the phosphor layer of the discharge cell selected by the discharge voltage applied to each discharge electrode of the panel assembly 110, thereby realizing a still image or a moving image. have.

In this case, heat generated from the panel assembly 110 is discharged to the outside through the chassis base 130 via the adhesive member 120, and at the same time, heat generated from the flexible printed cable 160 is transferred to the chassis base. The ends of the 130 and the cover plate 170 are distributed to both sides to be discharged to the outside.

As such, the chassis base 130 is made of a material having good thermal conductivity, such as an aluminum plate, in order to quickly discharge heat generated from the panel assembly 110 or the flexible printed cable 160 to the outside.

Recently, in order to reduce the cost of the chassis base 130, a method of reducing the thickness t of the chassis base 130 from 2 centimeters to 1 centimeter has been attempted, but the thickness of the chassis base 130 has become thinner. Due to this there is a problem vulnerable to strength.

In addition, with the large screen of the plasma display assembly 100, heat generated from the inside of the flexible printed cable 160 in which the driving IC is highly integrated, the panel assembly 110, or vibration increases. Accordingly, in addition to the structural strength, the chassis base 130 needs to be provided with means capable of simultaneously performing a heat dissipation function, a vibration damping function, or an anti-shock function.

The present invention is to solve the above problems, the chassis base is laminated with different metal plate, different metal plate and polymer resin layer, in addition to the structural strength, the chassis base assembly to enhance the heat dissipation and vibration prevention function, It is an object of the present invention to provide a plasma display assembly employing the same.

Chassis base assembly according to an aspect of the present invention to achieve the above object,

A panel assembly for implementing an image is supported, and a plurality of dissimilar materials are laminated to have a chassis base.

The chassis base may be formed by stacking a plurality of plates selected from an aluminum plate, a steel plate, a copper plate, or a polymer resin plate.

In addition, the chassis base is characterized in that at least one selected from a steel plate, a copper plate, or a polymer resin plate is interposed between the plurality of aluminum plates.

In addition, a bracket is coupled to the outer surface of the chassis base to reinforce its strength, and any one selected from a steel plate, a copper plate, or a polymer resin plate is coupled to the bracket between the plurality of plate members forming the outermost layer. Characterized in that located.

Further, the plurality of plate is characterized in that the combined by the tox processing.

Plasma display assembly employing a chassis base assembly according to another aspect of the invention,

A panel assembly including a front panel and a rear panel disposed to face the panel, and applying a predetermined power to a plurality of discharge electrodes disposed in the front and rear panels to implement an image;

It is installed at the rear of the panel assembly to support it, the chassis base is formed by stacking a plurality of dissimilar materials, coupled to the rear of the chassis base, and transmits an electrical signal to the discharge electrode terminal of the panel assembly by a flexible printed cable. A chassis base assembly having a driving circuit unit; And

And a case accommodating the panel assembly and the chassis base assembly together.

In addition, the chassis base is characterized in that a plurality of plate material selected from an aluminum plate, a copper plate, a steel plate, or a polymer resin plate is laminated.

Further, a bracket is installed between the chassis base and the driving circuit to reinforce the strength of the chassis base, and is coupled to the outer surface of the chassis base, and the steel is coupled to the bracket between a plurality of plate members forming the outermost layer. It is characterized by interposing any one selected from a plate, a copper plate, or a polymer resin plate.

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

2 illustrates a plasma display assembly 200 according to an embodiment of the present invention.

Referring to the drawings, the plasma display assembly 200 includes a front substrate 211 and a panel assembly 210 coupled with a rear panel 212 coupled with the front substrate 211.

When the panel assembly 210 has a three-electrode planar shape, the front panel 211 includes a transparent substrate, a pair of discharge sustaining electrodes formed on an inner surface of the transparent substrate, a dielectric layer filling the same, and a protective layer deposited on a surface thereof. The back panel 212 includes a transparent substrate, an address electrode formed on an inner surface of the transparent substrate, disposed in a direction crossing the discharge sustaining electrode pair, and a dielectric layer embedded therein. In addition, the front panel 211 and the rear panel 212 includes a partition defining a discharge space, and a red, green, and blue phosphor layer applied to the inside of the partition wall.

The chassis base assembly 290 is coupled to the panel assembly 210. That is, the chassis base 220 is disposed behind the rear panel 212. The chassis base 220 is attached to the panel assembly 210 by an adhesive means 230. The adhesive means 230 includes a double-sided tape 231 and a heat dissipation sheet 232 serving as a heat conductive medium to discharge heat generated from the panel assembly 210 via the chassis base 220. have.

The driving circuit unit 240 is provided on the rear surface of the chassis base 220. A plurality of circuit elements 241 are mounted on the driving circuit unit 240. The flexible printed cable 250 is connected to the circuit element 241. The flexible printed cable 250 is connected between each electrode terminal of the panel assembly 210 and the driving circuit unit 240 to transfer these electrical signals to each other.

In some cases, the chassis reinforcement member 260 may be further installed at upper and lower ends of the chassis base 220, and a cover plate 270 may be installed at the rear of the flexible printed cable 250 to protect it. ) Can be installed.

The filter assembly 280 is installed in front of the front panel 211. The filter assembly 280 is provided to block reflection of electromagnetic waves generated from the panel assembly 210, infrared rays, neon light emission, or external light.

To this end, an anti-reflection film is attached to the filter assembly 280 to prevent visibility deterioration due to reflection of external light on a transparent substrate, and electromagnetic shielding for effectively blocking electromagnetic waves generated while driving the panel assembly 210. A layer is formed, and a selective wavelength absorption film is attached for shielding neon light emission and unnecessary light emission of near infrared rays by plasma of an inert gas used for screen light emission.

The panel assembly 210, chassis base assembly 290, and filter assembly 280 are housed in a case 310. The case 310 includes a front cabinet 311 installed at the front of the filter assembly 280 and a cover bag 312 installed at the rear of the chassis base assembly 290. A plurality of through holes 313 are formed at upper and lower ends of the cover back 312.

On the other hand, the filter holder 300 is provided on the back of the filter assembly 280. The filter holder 300 includes a press part 301 for pressing the filter assembly 280 against the front cabinet 311 and a fixing part 302 bent backward from the press part 301. .

The filter mounting portion 303 is provided on the rear surface of the front cabinet 311. The fixing unit 302 is positioned opposite to the filter mounting unit 303, and the filter assembly 280 is fixed to the front cabinet 311 by screwing.

In this case, the chassis base 220 not only supports the panel assembly 210, but also receives heat generated from the panel assembly 210 and drives the panel assembly 210 to the outside during driving.

According to a feature of the present invention, the chassis base 220 is formed by stacking a plurality of dissimilar materials.

In more detail, it is as following.

FIG. 3 is a cutaway view of a portion of the plasma display assembly 200 of FIG. 2 in a coupled state, and FIG. 4 is an enlarged view of a portion of the chassis base 220 of FIG.

3 and 4, the chassis base 220 is disposed at the rear of the panel assembly 210. The heat dissipation sheet 231 and the double-sided tape 232 are interposed between the panel assembly 210 and the chassis base 220 at the center and the edge, respectively. In this case, the chassis base 220 may be spaced apart from the heat dissipation sheet 231 by a predetermined interval to form a predetermined space in which air can flow between the panel assembly 210 and the panel assembly 210.

The chassis base 220 includes a flat body portion 221 and an end portion 222 bent from the body portion 221 in the opposite direction in which the panel assembly 210 is installed. The end 222 is bent in an "L" shape. The chassis reinforcing member 260 is attached to the upper and lower outer surfaces of the main body 221 in the longitudinal direction thereof.

The driving circuit unit 240 is installed at the rear of the chassis base 220. The driving circuit unit 240 is fixed to the chassis base 220 by the boss 340. A plurality of circuit elements 241 are installed in the driving circuit unit 240, and a flexible printed cable 250 is connected to the driving circuit unit 240.

The flexible printed cable 250 may include a plurality of driving ICs 251, a wiring part 252 electrically connected to the driving IC 251, and a film member having flexibility to fill the wiring part 252. 253). One end of the flexible printed cable 250 is connected to an electrode terminal formed on the panel assembly 210, and the other end is connected to the circuit element 241.

The flexible printed cable 250 is disposed between the end 222 of the chassis base 220 and the cover plate 270. That is, the flexible printed cable 250 passes through the end 222 of the chassis base 220 and the cover plate 270 with one end connected to each electrode terminal of the panel assembly 210, and the other end of the flexible printed cable 250. It is electrically connected to the circuit element 241 of the drive circuit unit 240. The cover plate 270 protects the flexible printed cable 250 from external shock and simultaneously performs a heat dissipation function. In this case, a heat dissipation sheet 320 such as a silicon sheet is interposed between the driving IC 251 and the cover plate 270, and a thermal grease 330 is disposed between the driving IC 251 and the chassis reinforcing member 260. thermal grease).

In this case, the chassis base 220 is formed by stacking a plurality of sheets. That is, a metal plate, for example, a first aluminum plate 220a having excellent thermal conductivity is disposed on the outermost layer adjacent to the panel assembly 210. The second aluminum plate 220d is also disposed on the outermost layer adjacent to the driving circuit 240 in the opposite direction.

A steel plate 220c is interposed between the first and second aluminum plates 220a and 220b to reinforce their strength. In addition, a copper plate 220d is further installed between the steel plate 220c and the second aluminum plate 220d to increase the heat dissipation effect.

Alternatively, instead of the steel plate 220c or the copper plate 220d, a vibration suppressing function may be used to prevent vibration, or a polymer composite resin plate such as a silicone-based resin having an impact protection function may be installed or additionally installed. Could be

In addition, as shown in FIG. 5, the chassis base 520 includes a first aluminum plate 520a and a second aluminum plate 520b as the outermost layers, and a steel plate 502c is disposed therebetween. There is a number.

In this case, the steel plate 502c may be installed entirely between the first and second aluminum plates 520a and 520b, but more preferably, a bracket 590 coupled to the chassis base 510 is installed. It may be selectively installed only where it corresponds. The bracket 590 is coupled to the chassis base 510 by a tox 580 process.

6 illustrates a case in which the chassis base 620 does not have a separate strength reinforcing means, and a plurality of first and second aluminum plates 620a and 620b constituting the outermost layer are provided, and the first and second aluminum are provided. Between the plates 620a and 620b, an intermediate plate 602c such as a copper plate having excellent heat dissipation performance or a polymer resin plate capable of preventing vibration can be provided.

In addition, as shown in FIG. 7, the chassis base 720 is provided with a first steel plate 720a and a second steel plate 720b instead of an aluminum plate, and the first and second steel plates 720a and 720b. An intermediate plate 720c such as a copper plate having excellent heat dissipation performance or a polymer resin plate having a vibration damping function can be provided therebetween.

As described above, the chassis base structures shown in the first to fourth embodiments are laminated with a plurality of metal plates or polymer resin plates to be bonded to each other by riveting, welding, screwing, or toxing. There is a number. In addition, it can be said that the overall thickness of the chassis base can be kept below 1 centimeter.

As described above, the chassis base assembly of the present invention and the plasma display assembly employing the same may have the following effects.

First, since the chassis base for supporting the panel assembly has a structure in which a plurality of metal plates and a polymer resin plate are laminated, mechanical strength is reinforced.

Second, when a plurality of sheets are laminated, it is possible to add a heat dissipation function, enhance the vibration damping function, or selectively add an impact protection function in accordance with the requirements of the consumer.

Third, steel plates and polymer resin plates which are less expensive than aluminum plates can be used, thereby reducing manufacturing costs.

Fourth, since the laminated using a relatively thin plate, it is possible to improve the strength and other performance while reducing the overall thickness.

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

Claims (8)

A chassis base assembly comprising a chassis base for supporting a panel assembly for implementing an image and having a plurality of different materials stacked thereon. The method of claim 1, The chassis base assembly is a chassis base assembly, characterized in that a plurality of plate materials selected from an aluminum plate, a steel plate, a copper plate, or a polymer resin plate is laminated. The method of claim 2, The chassis base assembly is a chassis base assembly, characterized in that at least one selected from a steel plate, a copper plate, or a polymer resin plate between a plurality of aluminum plate. The method of claim 2, A bracket is coupled to the outer surface of the chassis base to reinforce its strength, and any one selected from a steel plate, a copper plate, or a polymer resin plate is positioned between the plurality of plate members forming the outermost layer. Chassis base assembly, characterized in that. The method of claim 2 Chassis base assembly, characterized in that the plurality of plate material is coupled by the Torx processing. A panel assembly including a front panel and a rear panel disposed to face the panel, and applying a predetermined power to a plurality of discharge electrodes disposed in the front and rear panels to implement an image; It is installed at the rear of the panel assembly to support it, the chassis base is formed by stacking a plurality of dissimilar materials, coupled to the rear of the chassis base, and transmits an electrical signal to the discharge electrode terminal of the panel assembly by a flexible printed cable. A chassis base assembly having a driving circuit unit; And And a case accommodating the panel assembly and the chassis base assembly together. The method of claim 6, And the chassis base is formed by stacking a plurality of plate materials selected from an aluminum plate, a copper plate, a steel plate, and a polymer resin plate. The method of claim 7, wherein A bracket is installed between the chassis base and the driving circuit unit to reinforce the chassis base, and is coupled to an outer surface of the chassis base, and between a plurality of plate members forming an outermost layer. And a copper plate or a polymer resin plate interposed therebetween.

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