KR20050072219A - Frame structure of plasma display panel - Google Patents

Abstract

The present invention relates to a plasma display panel, wherein the frame structure of the plasma display panel according to the present invention includes a panel portion including an upper plate and a lower plate, a heat dissipation sheet and an adhesive sheet attached to the bottom of the panel portion, and a panel by the adhesive sheet. A plasma display device comprising a frame bonded to a portion and radiating heat conducted through a heat dissipation sheet, and a circuit material fixed on the frame, wherein the irregularities are formed on a frame to which the circuit material is coupled. do.

The present invention by forming the irregularities on the upper surface of the frame on which the circuit is mounted, thereby preventing the noise generated from the circuit to the irregularities to be radiated to the front of the panel unit to provide a comfortable viewing environment to the consumer, heat radiation Increased area has the effect of increasing the cooling efficiency.

Description

Frame Structure of Plasma Display Panel

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel, and in particular, by forming irregularities on the upper surface of a frame on which circuits are mounted, thereby preventing noises generated from the circuits from being reflected on the irregularities to be radiated to the front of the panel, thereby providing a comfortable viewing environment for consumers. The frame structure of the plasma display panel to provide a.

In recent years, the importance of an image display device (or image display device) has become more important in the process of partially completing the development of high definition television and improving the research. As such a type of image display device, as is known, a color cathode ray tube (CRT), a liquid crystal display (LCD), a fluorescent display (VFD), a plasma display panel (hereinafter referred to as PDP), etc. There is this.

However, since it is not technically completed as a display element that can be satisfied with the development of high definition television (High Definition TeleVision), it is being developed while maintaining a complementary relationship at different positions.

Among the image display apparatuses, the plasma display panel is used to display an image by using a gas discharge phenomenon, has the most promising resolution and roughness ratio in this field, is fast in response, and suitable for displaying a large area image. Widely used in applications such as televisions, monitors, and indoor and outdoor advertising display panels.

1 is an exploded perspective view illustrating a general plasma display panel, and FIG. 2 is a cross-sectional view illustrating a coupling state of a general plasma display panel.

As shown in the figure, in the plasma display panel, the front substrate 10, which is the display surface on which an image is displayed, and the rear substrate 20 forming the rear surface are coupled in parallel with a predetermined distance therebetween.

Under the front substrate 10, a pair of sustain electrodes 11 are provided in pairs to maintain light emission of cells by mutual discharge in one pixel. The sustain electrode 11 is covered by a dielectric layer 12 that limits a discharge current and insulates electrode pairs, and a protective layer 13 is formed on an upper surface thereof.

In the rear substrate 20, a plurality of discharge spaces, that is, stripe-type barrier ribs 21 for forming a cell, are arranged in parallel with each other, and an address discharge is performed at a portion that intersects with the sustain electrode 11 to perform vacuum ultraviolet rays. A plurality of address electrodes 22 are generated in parallel to the partition wall 21.

In addition, an upper surface of the rear substrate, that is, R, G, and B fluorescent layers 23 that emit visible light for image display when the address is discharged in a state in which only the top surface of the partition wall 21 is removed, is coated.

The plasma display panel having the above configuration is combined with a heat dissipation sheet and a frame for heat dissipation and set assembly.

FIG. 3 is a schematic cross-sectional view showing a frame structure of a plasma display panel according to the prior art. As shown in the drawing, the frame structure of the plasma display panel according to the prior art includes a panel portion P including an upper plate and a lower plate, and the panel. The heat dissipation sheet 30 attached to the bottom portion (P), the frame 40 for dissipating heat conducted through the heat dissipation sheet 30, and the circuit portion 50 is fixed on the frame.

At this time, in order to drive the plasma display panel unit P, a high frequency sustain pulse is applied to the circuit unit 50. However, due to the high frequency sustain pulse, periodic vibrations are generated in the circuit part 50, and the vibrations are generated as noises, which are radiated to the front of the panel part P via the frame 40 and the heat dissipation sheet 30. There is a problem that makes the viewer uncomfortable.

In general, the noise that can be detected by humans should be 20㏈ or more, and should be kept below 35㏈ to maintain the noise level suitable for indoor viewing. However, in the frame structure as in the prior art, since noise of 55 kHz or more is generated, the viewer cannot create a quiet environment for viewing, and thus, there is a problem of feeling inconvenience.

Therefore, there is an urgent need for a frame structure of a plasma display panel to minimize noise of a circuit radiated to the front of the panel to create a comfortable viewing environment.

The present invention has been proposed to solve the above problems, an object of the present invention is to form an unevenness on the upper surface of the frame on which the circuit is mounted, the noise generated in the uneven circuit is reflected to the front surface of the panel radiated It is to prevent consumers from providing a pleasant viewing environment.

Frame structure of the plasma display panel according to the present invention for achieving the above object is a panel portion consisting of a top plate and a bottom plate, a heat dissipation sheet and an adhesive sheet attached to the bottom surface of the panel portion, and adhered to the panel portion by the adhesive sheet In the plasma display device comprising a frame for radiating heat conducted through the heat dissipation sheet, and a circuit material fixed on the frame,

Forming irregularities on the frame to which the circuit is coupled.

Here, the unevenness is characterized in that the embossed.

Here, the unevenness is characterized in that the intaglio.

Here, the irregularities are characterized in that the embossed and intaglio are mixed.

Here, the unevenness is characterized in that hemispherical.

Here, the unevenness is characterized in that the pyramid type.

Here, the unevenness is characterized in that formed by the press work.

Here, the unevenness is characterized in that formed by casting.

Here, the unevenness is characterized in that formed on only one surface of the frame on which the circuit is mounted.

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

Figure 4 is a schematic cross-sectional view showing a frame structure of the plasma display panel according to an embodiment of the present invention, as shown in the drawing, the frame structure of the plasma display panel according to the present invention is a panel portion consisting of a top plate and a bottom plate ( P), a heat dissipation sheet 130 attached to the bottom surface of the panel portion P, a frame 140 for dissipating heat conducted through the heat dissipation sheet 130, and fixed to the frame 140. It is composed of a circuit (150).

In addition, the heat dissipation sheet 130 is usually made of a silicone material having a stickiness, the frame 140 is usually made of a high thermal conductivity aluminum material, the heat dissipation between the panel portion (P) rear and the frame 140 The sheet 130 is adhered.

At this time, the concave-convex 141 is formed on the frame 140 to which the circuit 150 is coupled. The unevenness 141 reflects or absorbs the noise generated from the circuit 150 to minimize the radiation of the noise toward the front of the panel P, thereby providing a comfortable viewing environment to the consumer.

In addition, the unevenness 141 serves to enlarge the heat dissipation area.

Figure 5 (a) to (d) is a schematic perspective showing a frame structure according to another embodiment of the present invention, as shown in the figure the unevenness according to the present invention can be formed in an embossed or intaglio, It may be formed by mixing the embossed and intaglio.

5 (a) to (b) shows an example in which hemispherical irregularities are formed by an embossment 142 and an intaglio 143, and (c) to (d) are embossed 144 and engraved pyramid irregularities ( 145) is shown.

Such unevenness may be formed by a press work or a casting work. In addition, since the heat dissipation sheet 130 and the panel portion P must be in surface contact with each other on the other surface of the frame 140, the unevenness is preferably formed only on one surface of the frame 140 on which the circuit is mounted.

As described above, the frame 140 having the unevenness has an effect of expanding the heat dissipation area, thereby effectively cooling the heat generated from the panel portion P. In addition, the noise generated from the circuitry 150 serves as a sound barrier to block the radiation to the front of the panel unit P.

The present invention has the effect of providing a comfortable viewing environment to the consumer by forming a concave-convex on the upper surface of the frame on which the circuit is mounted, preventing the noise generated from the circuit in the concave-convex to be radiated to the front of the panel unit. have.

In addition, the present invention has an effect of increasing the heat dissipation area by increasing the uneven portion on the frame to increase the cooling efficiency.

1 is an exploded perspective view showing a typical plasma display panel.

2 is a cross-sectional view showing a coupling state of a typical plasma display panel.

Figure 3 is a schematic cross-sectional view showing a frame structure of a plasma display panel according to the prior art.

Figure 4 is a schematic cross-sectional view showing a frame structure of a plasma display panel according to an embodiment of the present invention.

5 (a) to (d) is a schematic perspective view showing a frame structure according to another embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

P: panel 130: heat dissipation sheet

140: Frames 141, 142, 143, 144 and 145: Unevenness

150: circuitry

Claims (9)

A panel portion consisting of an upper plate and a lower plate, a heat dissipation sheet and an adhesive sheet attached to the bottom of the panel portion, a frame bonded to the panel portion by the adhesive sheet, and radiating heat conducted through the heat dissipation sheet; In the plasma display device consisting of a circuit material fixed to the, Frame structure of the plasma display panel, characterized in that the irregularities are formed on the frame to which the circuit is coupled. The method of claim 1, The irregularities are embossed frame structure of the plasma display panel. The method of claim 1, The irregularities are engraved frame structure, characterized in that the plasma display panel. The method of claim 1, The concave-convex frame structure of the plasma display panel, characterized in that the embossed and engraved. The method of claim 1, The irregularities are hemispherical frame structure, characterized in that the plasma display panel. The method of claim 1, The irregularities are pyramid-shaped frame structure, characterized in that the plasma display panel. The method of claim 1, The irregularities are formed by a press work frame structure of a plasma display panel. The method of claim 1, The concave-convex frame structure of the plasma display panel, characterized in that formed by casting. The method of claim 1, The unevenness is formed on only one surface of the frame on which the circuit is mounted frame structure of the plasma display panel.