KR100647692B1 - Chassis Base Assembly And Plasma Display Assembly Using The Same - Google Patents

Abstract

A chassis base assembly and a plasma display assembly employing the same are disclosed. The present invention relates to a panel assembly including a front panel and a rear panel disposed opposite thereto; a chassis base installed at a rear of the panel assembly to support the panel assembly; a driving circuit unit coupled to the chassis base; A chassis base assembly having a flexible printed cable for transmitting an electrical signal of a circuit element of a circuit portion, a panel assembly and a case accommodating the chassis base assembly together; the flexible printed cable includes a driving IC, A wiring member electrically connected thereto, and a film member filling the wiring portion, one end of the film member is connected to each electrode terminal of the panel assembly, the other end is connected to the circuit element, and the film member is in contact with the chassis base. The buffer member is formed in the part, and the film member of the flexible printed cable is held in place. As thus, be absorbs small vibrations that occur during driving, thereby preventing a noise from occurring.

Description

Chassis base assembly and the plasma display panel assembly applying the same}

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

2 is a cross-sectional view illustrating a state in which the plasma display assembly of FIG. 1 is coupled;

FIG. 3 is an exploded perspective view showing a part of the flexible printed cable of FIG.

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

100 ... plasma display assembly 101 ... panel assembly

104 Chassis base 104a

104b ... End 109a ... Drive IC

109c ... wiring 110 ... cover plate

203.Buffer absence

The present invention relates to a plasma display assembly, and more particularly, to a chassis base assembly having an improved structure in which a flexible printed cable is coupled to a chassis base, and a plasma display assembly employing the same.

In general, a plasma display panel assembly forms a plurality of discharge electrodes on opposite surfaces of a plurality of substrates, and discharges the discharge gas into a sealed discharge space between the substrates. The flat display device is a flat display device that realizes an image by using light emitted by exciting a fluorescent material of a phosphor layer by ultraviolet rays generated in a discharge space by applying a power source.

The plasma display assembly includes a panel assembly having a front panel and a back panel coupled thereto, a chassis base attached by an adhesive member to the rear of the panel assembly, a cover plate attached to the rear end of the chassis base, and a chassis base. And a flexible printed cable interposed between the cover plate and the cover plate, and a case accommodating them.

The plasma display assembly fabricates a front panel and a rear panel, respectively, to assemble the panel assembly, to couple the chassis base to the rear of the panel assembly, and to electrically connect the electrode terminals of the panel assembly to the electrode terminals of the panel assembly by the flexible printed cable at the rear of the chassis base. It can manufacture by mounting the drive circuit part which can transmit the, and attaching them to a case.

However, the conventional plasma display assembly has the following problems.

The film member of the flexible printed cable is provided with a cover plate at the rear thereof, with both ends coupled to the electrode terminals of the panel assembly and the circuit elements of the driving circuit part, and to fix the cover plate to the chassis base. .

At this time, if the flexible printed cable interposed between the chassis base and the cover plate is not fixed by a separate fixing means, vibrations occur during driving, leading to noise.

In order to prevent such a phenomenon, in the conventional case, the cover plate is fixed to the chassis base while a sponge or nonwoven fabric is attached to the inner surface of the cover plate, so that the outer surface of the film member is closely fixed to the outer surface of the sponge or nonwoven fabric. It is structured.

However, in such a structure, the sponge or nonwoven fabric and the film member interfere with each other when the cover plate is attached to the chassis base, thereby acting as an external force. As a result, the film member is brought into contact with the edge of the chassis base so that the film member is caught, or the lower surface of the film member is scratched by fine burrs of the chassis base, leading to disconnection failure.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, the chassis base assembly in which the film member of the flexible printed cable to the contact portion with respect to the chassis base to prevent damage to the film member, and the plasma display employing the same It is an object to provide a device assembly.

In order to achieve the above object, the chassis base assembly according to an aspect of the present invention,

Chassis base;

A flexible printed cable disposed on one surface of the chassis base and having a driving IC, a plurality of wiring portions connected thereto, and a film member filling the wiring portions; And

And a buffer member disposed at a portion where the film member is in contact with the chassis base to fix the film member to the chassis base.

In addition, the buffer member is characterized in that the polymer resin layer.

Further, the polymer resin layer is characterized in that the elastic polymer having an elastic force.

In addition, the buffer member is characterized in that formed along the surface of the chassis base is folded by folding the film member along the outer shape of the chassis base.

Further, the cover plate is further disposed behind the chassis base, and the flexible printed cable is disposed between the chassis base and the cover plate.

In addition, a thermal grease is applied between one surface of the driving IC and the chassis base, and a heat dissipation sheet is interposed between the other surface of the driving IC and the cover plate.

Plasma display assembly according to another aspect of the present invention,

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 provided in the front and rear panels to implement an image;

A chassis base installed at the rear of the panel assembly, the chassis base supporting the chassis base, a driving circuit unit coupled to the chassis base, and a flexible printed cable for transmitting electrical signals of circuit elements of the panel assembly and the driving circuit unit. Assembly;

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

The flexible printed cable includes a driving IC, a wiring part electrically connected to the driving IC, and a film member filling the wiring part, one end of the film member being connected to each electrode terminal of the panel assembly, and the other end. Silver is connected to the circuit element, characterized in that the buffer member is formed in the portion where the film member is in contact with the chassis base.

In addition, the shock absorbing member is characterized in that it is applied along the outer surface of the chassis base corresponding to the folded portion of the film member along the outer shape of the chassis base.

In addition, the film member is fixed to the outer surface of the chassis base by curing the buffer member.

Furthermore, a cover plate is further installed at the rear of the chassis base, the flexible printed cable is disposed between the chassis base and the cover plate, and the cover plate is coupled to the chassis base.

In addition, the portion in which the buffer member is formed is characterized in that the chassis base and the film member are all bent together.

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

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

Referring to the drawings, the plasma display assembly 100 includes a front panel 102 and a panel assembly 101 to which a rear panel 103 coupled thereto is coupled.

When the panel assembly 101 is a three-electrode surface discharge panel, the front panel 102 is provided with a transparent front substrate, the discharge sustaining electrode pairs are patterned on the inner surface thereof, and the discharge sustaining electrode pairs are embedded by the front dielectric layer. The protective film layer is deposited on the surface of the front dielectric layer. In addition, the back panel 103 is provided with a transparent back substrate, the address electrode is patterned in the direction crossing the discharge sustaining electrode pair on its inner surface, and the address electrode is embedded by the back dielectric layer. On the other hand, a partition wall defining a discharge cell is disposed between the front and rear panels 102 and 103, and a red, green, and blue phosphor layer is coated inside the partition wall.

The chassis base assembly 120 is coupled to the rear of the panel assembly 101.

That is, the chassis base 104 is disposed behind the rear panel 103. The chassis base 104 is coupled to the panel assembly 101 by adhesive means. A heat dissipation sheet 105 attached to the center of the rear surface of the rear panel 103 and serving as a heat conducting medium for transferring heat generated from the panel assembly 101 to the chassis base 104 during operation, and the rear panel Attached along the back edge of 103, it includes a double sided tape 106 that secures the chassis base 104 to the panel assembly 101.

The driving circuit portion 107 is provided on the rear surface of the chassis base 104. A plurality of circuit elements 108 are mounted in the drive circuit section 107. One end of the flexible printed cable 109 is electrically connected to one end of the circuit element 108, and the other end of the flexible printed cable 109 is connected to each electrode terminal of the panel assembly 101, thereby providing a panel assembly. Electrical signals from the 101 and the driver circuit section 107 are mutually transmitted. The flexible printed cable 109 is disposed between the chassis base 104 and the cover plate 110 installed behind the chassis base 104.

The filter assembly 111 is installed in front of the panel assembly 101. The filter assembly 111 is provided to block reflection of electromagnetic waves, infrared rays, neon light emission, or external light generated from the panel assembly 101.

To this end, an antireflection film is attached to the filter assembly 111 to prevent visibility deterioration due to reflection of external light on a transparent substrate, and electromagnetic shielding to effectively block electromagnetic waves generated while driving the panel assembly 101. 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 101, chassis base assembly 120, and fillet assembly 111 are housed in a case 114. The case 114 includes a front cabinet 112 installed at the front of the filter assembly 111 and a cover bag 113 installed at the rear of the chassis base assembly 120. A plurality of through holes 113a are formed at upper and lower ends of the cover bag 113.

On the other hand, the filter holder 115 is provided on the back of the filter assembly 111. The filter holder 115 includes a press part 115a for pressing the filter assembly 111 against the front cabinet 112 and a fixing part 115b bent backward from the press part 115a. . The filter mounting portion 115c is provided on the rear surface of the front cabinet 112. The fixing unit 115b is disposed to face the filter mounting unit 115c, and the filter assembly 111 is fixed to the front cabinet 112 by screwing.

Here, a buffer member is formed at a portion where the flexible printed cable 109 comes into contact with the chassis base 104 to fix it and prevent damage.

In more detail, it is as following.

FIG. 2 is a cut-away view of the state in which the plasma display assembly 100 of FIG. 1 is coupled, and FIG. 3 is an enlarged view of a portion where the flexible printed cable 109 of FIG. 1 is disposed.

2 and 3, the chassis base 104 is coupled to the rear of the panel assembly 101. A heat dissipation sheet 105 and a double-sided tape 106 are interposed between the panel assembly 101 and the chassis base 104. In this case, the chassis base 104 may be arranged to be spaced apart from the heat dissipation sheet 105 by a predetermined interval. In this case, air may flow from the outside between the panel assembly 101 and the chassis base 104 to exchange heat. It is forming a space to be.

The chassis base 104 is bent at least one or more times in the opposite direction in which the panel body 101 is parallel to the panel assembly 101 and the panel assembly 101 is installed from the body portion 104a. The end 104b is provided. In this case, the chassis reinforcing member may be additionally installed at the upper and lower rear surfaces of the main body 104a to further reinforce its strength.

The driving circuit unit 107 is provided behind the chassis base 104. The drive circuit 107 is fixed to the chassis base 104 by the boss 204. A plurality of circuit elements 108 are mounted in the drive circuit section 107.

The flexible printed cable 109 includes a plurality of driving ICs 109a, a plurality of wiring units 109b electrically connected to the driving ICs 109a, and a film having flexibility to fill the wiring units 109b. It consists of the member 109c. One end of the flexible printed cable 109 is connected to the electrode terminal formed on the panel assembly 104, and the other end is connected to the circuit element 108.

The flexible printed cable 109 is disposed between the end 104b of the chassis base 104 and the cover plate 110. The cover plate 110 simultaneously protects the flexible printed cable 109 from external shock and simultaneously performs a heat dissipation function. The cover plate 110 is provided with a flat body portion 110a, and a bent portion 110b bent from the body portion 110a in a direction in which the chassis base 104 is disposed. It is disposed along the longitudinal direction of the chassis base 104.

In this case, the driving IC 109a is disposed between an outer surface of the end 104b of the chassis base 104 and an inner surface of the main body portion 110a of the cover plate 110, and the driving IC 109a and the chassis. The thermal grease 201 is applied between the outer surface of the end 104b of the base 104, and the heat dissipation sheet 202 is disposed between the driving IC 109a and the inner surface of the main body 110a of the cover plate 110. Is interposed.

In addition, one end of the film member 109c is connected to each electrode terminal of the panel assembly 101 by passing between the end 104b of the chassis base 104 and the cover plate 110, and the other end thereof is vice versa. Extends in the direction and is electrically connected to a circuit element 108 mounted in the drive circuit portion 107.

One end of the film member 109c is bent at least once so as to be connected to each electrode terminal of the panel assembly 101. In this embodiment, one end of the film member 109c is folded twice to be electrically connected to the panel assembly 101. On the other hand, the other end side of the film member 109c is not folded in order to be connected to the circuit element 108 and maintains straightness. The bent portion 110b of the cover plate 110 is bent in the same direction outside the portion where the film member 109c is folded.

In this state, the cover plate 110 is coupled to the end 104b of the chassis base 104 by a fastening method such as screwing. In this case, in order to prevent damage of the film member 109c due to the fastening force of the cover plate 110, a buffer member 203 is formed between the end portion 104b of the chassis base 104 and the film member 109c. It is.

The buffer member 203 is applied along the bent surface of the end 104b of the chassis base 104, and the flexible printed cable 109 is disposed along the longitudinal direction of the chassis base 104. It is optionally formed in one place.

The buffer member 203 is preferably made of a polymer resin layer, for example, an elastomer having an elastic force. The buffer member 203 made of such an elastomer includes an appropriate amount of a volatile solvent in a resin shape before application, and then turns into a solid phase while the volatile solvent vaporizes.

Looking at the assembly process of the plasma display assembly assembly 100 having the above structure is as follows.

A panel assembly 101 including a plurality of discharge electrodes and front and back panels 102 and 103 having various pattern layers formed thereon is provided. Align the chassis base 104 at the rear of the prepared panel assembly 101, attach the heat dissipation sheet 105 to the rear center portion of the rear panel 103, and attach the double-sided tape 106 to the rear edge portion. The main body 104a of the chassis base 104 is attached. Thus, the chassis base 104 is coupled to the panel assembly 101. At this time, it is a matter of course that the driving circuit unit 107 in which a plurality of circuit elements 108 are mounted by the boss 204 is coupled to the rear of the main body unit 104a of the chassis base 104.

In addition, a small amount of thermal grease 201 is applied to the outer surface of the end 104a of the chassis base 104, and one surface of the driving IC 109a is attached to the upper surface thereof. The cover plate 110 is aligned with the rear side of the driving IC 109a, the heat dissipation sheet 202 is attached to the inner surface of the main body 119a of the cover plate 110, and the other surface of the driving IC 109a is disposed. Contact.

In this case, the buffer member 203 is applied to the end portion 104b of the chassis base 104 at a bent portion. The buffer member 203 is made of an elastic polymer having an elastic force, and is attached to the surface of the end 104b in a liquid state.

Subsequently, one end of the film member 109c is folded in contact with the buffer member 203 so that one end thereof is electrically connected to the electrode terminal of the panel assembly 101, and the other end of the driving circuit unit 107 is closed. It is electrically connected to the circuit element 108.

And, the outer surface of the film member 109c, the main body portion 110a of the cover plate 110 and the bent portion 110b bent therefrom is arranged to surround the folded film member 109c, screw connection The cover plate 110 is coupled to the chassis base 104.

At this time, since the buffer member 203 applied between the end 104a of the chassis base 104 and the film member 109c contains a volatile solvent, the buffer member 203 is changed into a solid phase upon curing. By the volatilization process, the buffer member 203 firmly fixes the end 104a of the chassis base 104 and the film member 109c together.

As described above, the chassis base assembly of the present invention and the plasma display assembly employing the same have the following effects as the buffer member is formed between the chassis base and the film member.

First, as the film member of the flexible printed cable is fixed in position, it absorbs minute vibrations generated during driving, thereby preventing noise.

Second, when an external force is applied to the cover plate for coupling the cover plate to the chassis base, the film member may be prevented from being damaged from being scratched or torn away from its original position.

Third, since a part of the film member fixed by the buffer member is spaced apart from the chassis base, it is possible to prevent scratches caused by fine burrs on the surface of the chassis base.

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 (14)

Chassis base; A flexible printed cable disposed on one surface of the chassis base and having a driving IC, a plurality of wiring portions connected thereto, and a film member filling the wiring portions; And And a cushioning member disposed at a portion where the film member is in contact with the chassis base to fix the film member with respect to the chassis base. The method of claim 1, The buffer member is a chassis base assembly, characterized in that the polymer resin layer. The method of claim 2, The polymer resin layer is a chassis base assembly, characterized in that the elastic polymer having an elastic force. The method of claim 1, And the buffer member is formed along a surface of the chassis base on which the film member is folded and folded along the outer shape of the chassis base. The method of claim 1, A cover plate is further disposed behind the chassis base, and the flexible printed cable is disposed between the chassis base and the cover plate. The method of claim 5, A thermal grease is applied between one surface of the driving IC and the chassis base, and a heat dissipation sheet is interposed between the other surface of the driving IC and the cover plate. 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 provided in the front and rear panels to implement an image; A chassis base installed at the rear of the panel assembly, the chassis base supporting the chassis base, a driving circuit unit coupled to the chassis base, and a flexible printed cable for transmitting electrical signals of circuit elements of the panel assembly and the driving circuit unit. Assembly; And a case accommodating the panel assembly and the chassis base assembly together. The flexible printed cable includes a driving IC, a wiring part electrically connected to the driving IC, and a film member filling the wiring part, one end of the film member being connected to each electrode terminal of the panel assembly, and the other end. And a buffer member formed at a portion which is connected to a silver circuit element and wherein the film member contacts the chassis base. The method of claim 7, wherein And the buffer member is applied along an outer surface of the chassis base corresponding to a portion where the film member is bent and folded along the outer shape of the chassis base. The method of claim 8, And the buffer member is a polymer resin layer. The method of claim 9, And the film member is fixed to an outer surface of the chassis base by curing the buffer member. The method of claim 9, And the polymer resin layer is an elastic polymer having elasticity. The method of claim 7, wherein A cover plate is further provided behind the chassis base, the flexible printed cable is disposed between the chassis base and the cover plate, and the cover plate is coupled to the chassis base. . The method of claim 12, And a portion where the buffer member is formed is a portion where the chassis base and the film member are bent together. The method of claim 7, wherein A thermal grease is applied between the driving IC and the chassis base, and a heat dissipation sheet is attached between the driving IC and the cover plate.

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