KR100669798B1 - Reinforcement structure in chassis base of plasma display panel - Google Patents

Abstract

A plasma display device including a plasma display panel in which an image is implemented and a chassis base disposed to face the plasma display panel, wherein the chassis base is formed to protrude from the chassis base and has a boss mounted thereon. A plasma display device further comprising a reinforcing member mounted on a stepped portion.

According to this, the shape of the reinforcing member can be optimized and the stiffness characteristic of the chassis base can be increased, thereby minimizing the torsion and deflection of the chassis base. In addition, the reinforcing members may be configured in an optimal number to maximize the effect of reinforcing the chassis base, and the chassis base may be installed at a loading location, thereby increasing space utilization on the rear surface of the chassis base.

Description

Reinforcement structure in chassis base of plasma display panel

1 is an exploded perspective view showing a chassis base equipped with a reinforcing structure according to an embodiment of the present invention.

2A is an exploded perspective view illustrating the reinforcing structure and the chassis base of FIG. 1 separately.

FIG. 2B is a partial perspective view illustrating the reinforcing structure and the chassis base of FIG. 2A fastened; FIG.

FIG. 2C is a cutaway view of FIG. 2B.

3 is a cross-sectional view of the reinforcing structure of the chassis base according to another embodiment of the present invention.

<Description of Symbols for Major Parts of Drawings>

111: front substrate 115: back substrate

116: heat dissipation means for the panel 141: step

142: reinforcing member 143: fastening member

144: Boss

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display device, and more particularly, to a plasma display device including a reinforcing member in a chassis base.

In general, a plasma display device forms respective electrodes on opposite surfaces of substrates, applies a predetermined voltage while injecting a discharge gas into the spaces between the substrates, and excites the phosphor by ultraviolet rays generated in the discharge space. The flat panel display implements an image using emitted light. The plasma display device may be manufactured to have a thin thickness of several centimeters or less, may have a large screen, and has been spotlighted as a next generation image display device in view of having a wide viewing angle of more than 150 degrees.

Such a plasma display device is completed by manufacturing a front panel and a back panel, respectively, assembling them, assembling a chassis base behind the panel, and mounting a circuit board on the chassis base, and then mounting them in a case.

The chassis base assembled to the panel is generally formed of a metal having high thermal conductivity and rigidity such as aluminum because it serves to release the heat transferred from the panel and to support the panel.

Such a chassis base needs to be thinner in accordance with the recent trend of thinning a plasma display device. When the thickness of the chassis base becomes thinner, the function of supporting the panel is weakened, so that the chassis base is not twisted or bent. Since it is necessary to prevent, there is a method of providing a reinforcing member on the back of the chassis base.

These reinforcement members may be provided in plural numbers on the rear surface of the chassis base to increase the effect of reinforcing the chassis base, but if the reinforcement members are unnecessarily installed, there is a limitation in space utilization on the rear surface of the chassis base, for example, the circuit board. As a result, the assembly of other parts can be difficult. In addition, the increase in the reinforcing members also disadvantages in production costs and the like.

In addition, a structure for reinforcing rigidity of the chassis base by providing a beading unit in the chassis base is disclosed in Korean Patent Laid-Open No. 2003-0033718. However, there is a limit to maintaining the rigidity of the chassis only by the beading process, there is a problem that the panel may be damaged due to external impact.

The present invention is to solve the above problems, to maximize the reinforcement effect on the chassis base by optimizing the shape of the reinforcing member installed on the back of the chassis base, while buffering the impact applied from the outside through the boss, etc. It is an object of the present invention to provide a plasma display device that can be protected.

In order to achieve the above object, a plasma display device according to an embodiment of the present invention is a plasma display device including a plasma display panel on which an image is implemented and a chassis base disposed to face the plasma display panel. The base further includes a stepped portion protruding from the chassis base and having a boss mounted thereon, and a reinforcing member mounted on the stepped portion.

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

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

Referring to the drawings, the plasma display device 100 according to an exemplary embodiment of the present invention may include panels 111 and 115, a chassis base 112 supporting the panels 111 and 115, and a rear surface of the chassis base 112. The circuit board 113 is mounted to the.

The panels 111 and 115 may include a front panel 111 and a rear panel 115. The front panel may include a plurality of sustain electrodes in a strip form, a bus electrode connected to each of the sustain electrodes, the sustain electrode and a bus. And a protective film layer coated on the surface of the front dielectric layer.

The rear panel 115 faces the front panel 111 and includes a plurality of address electrodes in a form orthogonal to the sustain electrode, a back dielectric layer filling the address electrode, and a back dielectric layer. And a partition wall formed to define a discharge space, and a red, green, and blue phosphor layer applied inside the discharge space partitioned by the partition wall.

A filter (not shown) is installed on the front surface of the panel 111, and the filter may include an electromagnetic wave shielding layer for blocking electromagnetic waves harmful to a human body generated when the panel 111 is driven.

The chassis base 112 is disposed behind the panels 111 and 115 configured as described above. The chassis base 112 supports the panels 111 and 115 and receives heat from the panels 111 and 115. Is released.

The panels 111 and 115 configured as described above are fixed to the chassis base 112 by an adhesive member, for example, a double-sided tape 120, and the heat dissipation for the panel, which is a heat conducting medium, between the panels 111 and 115 and the chassis base 112. Means 116 are interposed. The panel heat dissipation means 116 allows the heat generated from the panel to be discharged to the outside via the chassis base 112.

In addition, electronic components driving the panels 111 and 115 are mounted on the circuit board 113 mounted at the rear of the chassis base 112 coupled to the panels 111 and 115, and the components are powered by the panels 111 and 115. And components for supplying a signal and components for applying a signal to implement an image on the panel. The panels 111 and 115, the chassis base 112, and the circuit board 113 configured as described above are accommodated in a case (not shown).

Meanwhile, a signal transmission means for transmitting an electrical signal between the circuit board 113 and the panels 111 and 115 is required. As the signal transmission means, a tape carrier package (TCP) may be used, and the TCP may be used. As shown in FIG. 1, a plurality of substrates are arranged in a line along both edges of the chassis base, and one side of the panel 111 and the other side of the circuit board 113 are provided via both ends of the chassis base 112. Connected with In addition, protection plates 117 may be provided outside the TCP 114 to surround the outside of the TCP 114 to protect the protection plate 117, and the protection plate 117 may be made of a metal material such as aluminum, and the screws 118 may be provided. It is fixed to the chassis base by a fixing means such as.

A heat dissipation member (not shown) is disposed between the TCP 114 and the protection plate so that heat generated during operation of the element 119 mounted in the TCP 114 can be discharged to the outside. As the heat dissipation means for the device, a liquid or gel type heat conductive medium such as grease or a plate heat dissipation member may be used.

On the other hand, the wall-mount boss 144 is mounted on the chassis base so that the plasma display device can be mounted on a vertical plane such as a wall. Since the chassis base is concentrated at the portion where the boss 144 is mounted due to the load of the plasma display device, the chassis base is configured to reinforce it, as shown in FIGS. 2A to 2C. In order to distribute the stress concentration by installing the step portion 141. In addition, in the present invention, the reinforcing member 142 is mounted on the stepped portion separately from the stepped portion 141, and the strength of the fastening portion with the stepped portion 141 and the boss 144 is further reinforced.

Referring to FIG. 2A, the chassis base 112 is shown, and the circuit board mounted on the rear surface of the chassis base is omitted for convenience of illustration. As shown in FIGS. 2A to 2C, a stepped portion 141 is formed in the chassis base. The stepped portion may be integrally formed with the chassis base by a processing method such as beading, embossing, or drawing in the manufacturing process of the chassis base.

In addition, the stepped part 141 may protrude from the surface opposite to the side where the plasma display panel 111 is located. This is because when the stepped portion protrudes toward the side where the panel is located, a gap may be generated between the plasma display panel and the chassis base by the height of the end portion, thereby preventing heat release by the heat conductive medium 116.

On the other hand, the stepped portion 141 may extend in the lateral direction or the longitudinal direction of the chassis base, for example, and the stepped portion may extend in any direction as long as it forms a structure that can reinforce the stiffness of the chassis base. Of course it can.

In the present invention, in addition to setting the stepped portion 141 to the chassis base 112, a reinforcing member 142 that can further reinforce the rigidity of the stepped portion 141 is provided on the upper portion of the stepped portion 141. To be mounted.

The reinforcing member 142 may be integrally formed as injection or casting, or may be formed of a plurality of members.

FIG. 2A illustrates a state before the reinforcing member 142 and the chassis base 112 and the stepped portion 141 formed on the smooth surface of the chassis base are coupled, and FIG. 2B illustrates the reinforcing member 142 and the chassis base. 112 and the step portion 141 is shown coupled. FIG. 2C also shows a cutaway view taken along the line I-I of FIG. 2B.

The chassis base 112 and the reinforcing member 142 are coupled by various metal fastening methods. For example, in the configuration of FIGS. 2-4, the coupling using the rivet 143 is shown.

Meanwhile, referring to FIG. 3, as another embodiment of the present invention, an auxiliary reinforcing member 146 mounted on the reinforcing member 142 is illustrated.

The rigidity of the mounting portion of the boss 144 may be further reinforced by the separate auxiliary reinforcing member 146, and an external shock applied through the boss may be buffered by the reinforcing member 146 to protect the panels 111 and 115. I can do it.

As described above, the plasma display device according to the present invention can minimize the torsion or deflection of the chassis base by optimizing its shape in the reinforcing member and increasing the stiffness characteristic of the chassis base.

In addition, the plasma display device according to the present invention can protect the panel by preventing the impact applied from the outside through the boss or the like through the stepped portion and the reinforcing member to prevent the impact directly on the panel.

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

Claims (6)

A panel in which an image is implemented using plasma discharge; A chassis base disposed opposite the panel at the rear of the panel; A driving circuit board disposed behind the chassis base to generate a circuit for driving the plasma display panel; And, And a case accommodating the panel, the chassis base, and the driving circuit board. And a reinforcing member protruding from the chassis base and having a boss mounted thereon, and a reinforcing member mounted on the stepped portion. The method of claim 1, And the reinforcing member is integrally formed with the chassis base by injection or casting. The method of claim 1, And the reinforcing member comprises a plurality of members. The method of claim 1, And the stepped portion is processed by any one of a processing method selected from a group consisting of beading, embossing, and drawing. The method of claim 4, wherein And the stepped portion protrudes from a surface opposite to the plasma display panel. delete

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