KR100731466B1 - Plasma display apparatus - Google Patents

Abstract

The plasma display device of the present invention includes a panel for displaying an image, a chassis base supporting a panel at a rear surface of the panel, and a circuit portion for driving the panel fixed to a rear surface of the chassis base having a handle portion integrally formed thereon.

Therefore, the plasma display device has an advantage in that the trouble of separating or assembling the handle part is reduced as the handle part is integrally formed on the chassis base.

Description

Plasma display device {PLASMA DISPLAY APPARATUS}

1 is a schematic exploded perspective view of a PDP according to the present invention;

2 is a view showing an embodiment of a chassis base according to the present invention;

3 is a view showing another embodiment of the chassis base according to the present invention.

Explanation of symbols on the main parts of the drawings

100: PDP 103: panel

106: heat conductive sheet 108: adhesive member

109: chassis base 109a, 109b: handle portion

110: circuit portion 120: protective plate

140: conductive thin film

The present invention relates to a plasma display device, and more particularly, to a plasma display device having a chassis base made of plastic.

Recently, many flat display devices (CRTs) have been developed to replace Cathode Ray Tubes (CRTs). Representative examples of such flat panel display devices include liquid crystal display devices (LCDs), electro-luminescence display devices (ELDs), field emission display devices (FEDs), and plasmas. And a display panel (PDP; Plasma Display Panel).

Among such flat panel display apparatuses, the PDP displays an image by plasma discharge, which has the advantages of enabling complete digital implementation and relatively large screen implementation compared to other flat panel display apparatuses.

Such a PDP is composed of a filter assembly, a panel, a heat conductive sheet, a chassis base, a circuit part, a connection member, a protective plate, and various additional devices housed inside the front / rear case.

The chassis base serves to support a panel displaying an image located on the front surface thereof and to fix a circuit portion for driving the panel on the back surface thereof.

Here, the chassis base is transferred to each process to proceed with the process. At this time, the sensitive chassis base may be damaged when the worker touches it by hand. Thus, the chassis base requires a handle portion so that an operator can transport the chassis base without damaging it.

As a result, the chassis base is cumbersome in assembling or separating the handle part on one surface of the chassis base every time the transfer is required before and after the process.

The present invention has been made to solve the above problems, an object of the present invention is to provide a plasma display device that can reduce the damage to the chassis base by providing a handle portion in the chassis base of the plastic material.

In order to achieve the above object, a plasma display device according to the present invention includes a panel for displaying an image, a chassis base supporting a panel at a rear surface of the panel, and a chassis base fixed to a rear surface of a chassis base having a handle portion integrally formed thereon and driving the panel. It is made, including.

The chassis base may be formed of a plastic material, and the chassis base may be formed of a polyester resin, an epoxy resin, or a polycarbonate resin.

Here, the handle portion is injection-molded in the chassis base, it is good to be formed of the same material as the chassis base.

In addition, the handle portion may be a protrusion formed to protrude from the rear surface of the chassis base, or may be a ring formed to protrude from the rear surface of the chassis base.

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

1 is a schematic exploded perspective view of a PDP according to an embodiment of the present invention.

Referring to the drawings, the plasma display apparatus 100 includes a panel 103, a thermal conductive sheet 106, an adhesive member 108, a conductive thin film 140, a chassis base 109, a circuit unit 110, and a protective plate 120. ), And a connecting member 130.

The panel 103 displays an image by the discharge generated by the drive signal provided from the circuit formed in the circuit section 110. To this end, the panel 103 forms partitions, electrodes, phosphors, dielectrics, and protective films between the two substrates 103a and 103b to form a space in which discharge occurs, that is, a discharge cell. In addition, the discharge cell is filled with an inert gas that emits ultraviolet rays in the wavelength band for exciting the phosphor during discharge. The panel 103 is connected to the circuit unit 110 by a flexible printed circuit (FPC) or a chip carrier film (TCP) in which some driving chips are mounted. In addition, accessory members such as an adhesive member 108 and a thermally conductive sheet 106 may be attached to the rear surface of the panel 103.

The thermally conductive sheet 106 is inserted between the panel 103 and the chassis base 109 to transfer heat generated from the panel 103 when the PDP is driven to the chassis base 109 or to dissipate heat to heat the panel 103. To prevent it from rising sharply. In addition, the thermally conductive sheet 106 evens the temperature distribution of the non-uniform panel 103, thereby preventing the panel 103 from being broken or malfunctioned due to local temperature differences. The heat conducting sheet 106 is preferably different from the attachment method and the role depending on the material of the chassis base 109 for the normal operation of the PDP. In the present invention, since the chassis base 109 is made of a plastic material, thermal conductivity and heat dissipation are not good, and thus the thermal conductive sheet 106 and the chassis base 109 are provided to have a predetermined interval.

The adhesive member 108 fixes the panel 103 to the chassis base 109. To this end, the adhesive member 108 is formed in the form of a strip or frame in the edge portion of the thermal conductive sheet 106, as shown in Figure 1, thereby fixing the panel 103 to the chassis base (109). As the adhesive member 108, it is possible to use an adhesive, an adhesive sheet and an adhesive tape. The adhesive member 108 may vary the thickness and shape of the attachment method and the adhesive member 108 according to the characteristics of the chassis base 109. As described above, in the case of using the chassis base made of a plastic material having poor thermal conductivity and heat dissipation characteristics, it is preferable to provide a space between the adhesive member 108 and the adhesive member 108. Installing the adhesive members 108 at a predetermined interval is to facilitate heat dissipation of the heat conductive sheet 106 by allowing air to flow through the space between the adhesive members 108. In addition, the adhesive member 108 is preferably formed to have a thick thickness to help the heat dissipation to form a gap that becomes the air flow path to enable the flow of air.

The chassis base 109 fixes the panel 103 by the adhesive member 108 and is connected to the circuit unit 110. In the present invention, the chassis base 109 of a plastic material is used, and thus the ground securing means of the circuit unit 110 is provided.

A conductive thin film 140 may be used as the ground securing means of the circuit unit 110 and the chassis base 109 to be described later.

The conductive thin film 140 may be formed by spray coating, physical, chemical, or thermal evaporation, or may be thin and formed on the chassis base 109. The conductive thin film may be formed of a metal material such as nickel, but the material is not limited thereto.

The chassis base 109 may be formed of a polyester resin, an epoxy resin, a polycarbonate resin, or the like. Among these, polyester resins are generally referred to as fiber reinforced plastics (FRP) because they are generally reinforced with glass fibers. Recent advances in molding can produce FRP with the same strength as steel. In addition, polycarbonate resin is an engineering plastic that is transparent, has excellent mechanical properties and heat resistance, and is nontoxic and self-extinguishing. However, the present invention does not limit the type of plastic.

Here, the handle bases 109a and 109b are formed on the surface of the chassis base 109 that are not coupled to the thin film 140. The handle portions 109a and 109b are integrally formed with the chassis base 109 and preferably injection molded with the same material as the chassis base 109. In addition, the handle portion 109 may be in the form of a projection 109a formed to protrude outward, as shown in FIG. have.

Therefore, the operator can hold and transfer the projection 109a or the ring 109b when transferring the chassis base 109.

The circuit unit 110 is divided into several pieces of substrates for driving the PDP. In more detail, the circuit unit 110 includes a power supply unit, a logic circuit unit, an address circuit unit, a scan circuit unit, a sustain circuit unit, and driving buffer boards. The power supply unit supplies power to the driving circuit and the panel and is equipped with an AC / DC converter that converts an external AC voltage into a DC voltage. The logic circuit unit receives the image signal, separates and controls the signal to be sent to the address circuit unit, the scan circuit unit, and the sustain circuit unit, and automatically adjusts the power. Each circuit unit receives a signal from a logic circuit and transmits the signal to each driving chip, and each driving chip distributes a logic circuit command to each electrode. The driving buffer boards are provided between each driving board and the panel 103, and a driving signal from each circuit section is provided to the panel 103 via this driving buffer board. In addition, the driving buffer boards are connected to the panel 103 by a connecting member such as TCP or FPC.

The protective plate 120 protects the connection member 130 together with the front case and the rear case from external shocks, and transfers heat generated from the connection member 130 to a heat dissipation member (not shown), and also directly radiates some heat. By preventing the damage and malfunction of the connecting member 130.

Since the circuit unit 110 requires a high voltage to apply a voltage to a plurality of electrodes mounted inside the panel 103, it is necessary to stably ground it. In particular, since the chassis base 109 is made of plastic, the ground securing means may be connected to the circuit unit 110.

 As the ground securing means of the chassis base 109, the conductive thin film 140 may be mentioned.

The conductive thin film 140 is padded and coupled to the chassis base 109 so as to be in contact with the front surface of the chassis base 109. In addition, the thin film 140 is formed so that its thickness is about 0.1mm. The thin film 140 may be formed of aluminum or nickel, but the material is not limited thereto.

Although the present invention has been described using PDP as an example, the contents of the present invention can be applied to other flat panel display devices.

Plasma display device according to the present invention has the advantage that the hassle of separating or assembling the handle portion is reduced as the handle portion is integrally formed on the chassis base.

As described above, the present invention is not limited to the specific preferred embodiments described above, and those skilled in the art without departing from the gist of the present invention as claimed in the following claims. Anyone may implement various modifications, and such changes are within the scope of the claims.

Claims (7)

A panel displaying an image; A chassis base supporting the panel at a rear surface of the panel and having a handle part integrally formed; And And a circuit unit fixed to the rear surface of the chassis base to drive the panel. The method of claim 1, And the handle part is injection molded into the chassis base. The method of claim 2, And the handle portion is formed of the same material as the chassis base. The method of claim 3, wherein And the chassis base is formed of a plastic material. The method of claim 4, wherein And the chassis base is a polyester resin, an epoxy resin, or a polycarbonate resin. The method of claim 2, And the handle portion is a protrusion formed to protrude from the rear surface of the chassis base. The method of claim 2, And the handle portion is a ring formed to protrude from the rear surface of the chassis base.

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