KR20040010951A - Back plate for a plasma display Panel using a metal - Google Patents

Abstract

PURPOSE: A lower metal substrate is provided to achieve improved strength of the metal substrate by enhancing the structure of the metal substrate, while allowing for ease of mounting of the frame. CONSTITUTION: A plasma display panel comprises a panel formed of a front glass substrate and a rear metal plate(31); reinforcement plates(31-1,31-2) formed by bending the two opposite sides of the rear metal substrate; and a frame coupled to the rear metal plate. The frame has a surface on which a circuit board is attached and the other surface on which a guide plate is integrally formed. The frame and the rear metal plate are coupled through a screw.

Description

Back plate for a plasma display panel using a metal}

The present invention relates to a panel of a plasma display panel (PDP) of the present invention, particularly a panel employing a metal substrate as a lower substrate.

Plasma display panels are devices that generate light by exciting fluorescent materials or special gases. That is, glow discharge occurs by applying a predetermined voltage between the two electrodes provided while the gas is filled in the sealed space, and the phosphor layer is excited by ultraviolet rays generated during the glow discharge to form an image.

In the structure of the panel, a barrier rib is formed between an upper substrate and a lower substrate formed of a glass substrate, thereby forming a discharge space. In recent years, a glass substrate that is easily bent or broken using a metal substrate as a lower substrate instead of a glass substrate. A structure that overcomes the disadvantages of has been proposed.

Fig. 1 is a general structure of a PDP employing a metal substrate, and shows a PDP panel in which a metal substrate 11 such as titanium, a partition 12, and a glass substrate 13 are formed as an upper substrate.

In the case of employing the metal substrate as described above, the handleability is good and there is no need for a separate heat sink.

Fig. 2 is a structure in which a PDP panel made of a conventional glass substrate is assembled. A PDP panel composed of a lower plate 21 and an upper plate 23, and a circuit for supplying power to the rear surface of the lower plate 21 of the PDP panel. The substrate 24 is installed, and the panel is adhered to the front surface of the thermally conductive adhesive tape 25 and then fixed to the frame 26.

The frame 26 has a hole (not shown) through which the circuit board passes, and a circuit board 24 connected to the PDP panel through the hole is coupled by the boss 27.

The conventional PDP configured as described above has a disadvantage in that a thin metal substrate of about 0.5 mm is advantageous because the metal substrate is thin, which is advantageous for weight reduction, but the substrate is easily bent during fabrication of the panel, and the strength is weak.

In addition, since the adhesive tape used to adhesively fix the frame is expensive, the material cost is high, and the adhesive force of the adhesive tape is degraded due to the heat generated from the panel as time elapses, thereby degrading reliability.

The present invention aims to solve the above problems and at the same time to produce a lower plate that is easy to mount the frame.

In addition, another object is to provide a structure that is cheaper, safer and easier to mount the frame than the adhesive tape.

1 is a structure of a conventional plasma display panel

2 is an assembly structure of a conventional PDP panel and the frame

Fig. 3 is a PDP structure employing the metal substrate of the first embodiment of the present invention.

4 is a three-dimensional view of a metal substrate of a first embodiment of the present invention;

Fig. 5 is a PDP structure employing the metal substrate of the second embodiment of the present invention.

6 is a three-dimensional view of a metal substrate of a second embodiment of the present invention;

Figure 7 is another embodiment of a metal substrate of the present invention

8 is an assembly structure of the PDP panel and the frame of the present invention

21,31,51,81: Lower metal plate 13,23,33: Upper board

26, 84: frame 31-1,31-2, 51-1,51-2,51-3,51-4,81-1,81-2: reinforcement plate

84-1,84-2: Guide plate

In order to achieve the above object, the present invention, the plasma display having a frame coupled to the reinforcing plate formed integrally by bending one or more sides of the rear metal substrate of the PDP panel, and the back metal plate formed with the reinforcement To provide an assembly.

Preferably, a circuit board is attached to one side of the frame, and each side of the frame is bent to form an assembly of the plasma display panel, characterized in that the guide plate is integrally formed.

More preferably, the frame and the back metal plate are coupled to each other, thereby providing an assembly of the plasma display panel.

Hereinafter, with reference to the accompanying drawings, an embodiment of the present invention for achieving the above object will be described in detail.

3 is a first temporary example of a PDP panel employing a metal substrate according to the present invention.

Back panel 31 employing a metal plate such as titanium (Ti) as a back plate, and a partition wall 32 formed by pressing and forming a dielectric layer by LTCC-M (Low Temper co-Firing ceramic on Metal) method, and an upper part made of glass It is composed of a substrate 33, in particular, it is characterized in that the reinforcing plate (31-1, 31-2) is formed by bending two opposite sides of the back metal plate (31). Unlike conventional glass substrates, when the metal substrate is adopted, the handling is simple, so that the rear substrate can be easily bent to form a reinforcement plate.

4 shows a rear metal plate 31 on which the reinforcing plates 31-1 and 31-2 are formed.

5 is a reinforcing plate 51-1, 51-2, 51-3 formed by bending all four sides of the rear metal plate 51 and the partition wall 52 and the rear metal plate 51 according to the second embodiment; 51-4 is not shown).

FIG. 6 is a three-dimensional view of the rear metal plate 51 to show the reinforcing plates 51-1, 51-2, 51-3, and 51-4 by bending all four sides of the metal plate. The double pairs 51-3 and 51-4 have a predetermined space between the reinforcement plates formed by processing the length of the reinforcement plate to be shorter than the length of the rear metal plate so as not to disturb the formation of neighboring reinforcement plates when bending all four sides. To have.

Fig. 7 is a type of embodiment other than the first and second embodiments described above, in which the structure of the reinforcing plate which is integrally formed on the back metal plate by changing the bending shape is changed. That is, the bending direction or the number of bending times is changed. Thus, it is possible to form a variety of different forms of reinforcement plate on the back metal plate.

8 shows a PDP assembly in which a PDP panel employing the back metal plate formed as described above is attached to a frame.

A lower substrate of the PDP panel composed of a rear metal plate 81 having a partition 82 formed by the LTCC-M method, and reinforcement plates 81-1 and 81-2 formed by bending sides of the rear metal plate 81; The frame 84 to which the circuit board 83 is attached has a screwed structure.

The circuit board 83 is coupled to the frame by a boss 85, and the frame 84 and the rear metal plate 81 are coupled to the frame by screws 86. At this time, if the guide plates 84-1 and 84-2 bent at the sides of the frame 84 are formed, the position with the rear metal plate 81 on which the reinforcing plates 81-1 and 81-2 are formed. Joining becomes easy.

According to the PDP panel of the present invention as described above, it is not necessary to use an expensive adhesive tape to assemble the plasma display panel and the frame, so that a low-cost process is possible and screw coupling is employed, so that no change in characteristics occurs over time. This is improved.

In addition, by forming a reinforcing plate bent each side of the back metal plate was a flat plate structure to distribute the force applied from the outside, the door handleability is improved to improve the mechanical properties.

In addition, there is an advantage that the combination of the PDP panel and the frame is facilitated according to the structural change of the frame and the back metal plate.

Claims (5)

And a panel formed of a front glass substrate and a rear metal plate, a reinforcement plate integrally formed by bending the sides of the rear metal plate, and a frame coupled to the rear metal plate on which the reinforcement plate is formed. The plasma display panel of claim 1, wherein a circuit board is attached to one side of the frame, and a guide plate is integrally formed by bending the sides of the frame in the other direction. The plasma display panel of claim 1, wherein the frame and the back metal plate are coupled to each other by screwing. The plasma display panel of claim 1, wherein the reinforcing plate is formed on two or four sides of the rear metal plate facing each other. The method of claim 1, wherein the reinforcing plate is plasma display panel comparative analysis, characterized in that the shape is formed differently depending on the number and direction of bending the side of the back metal plate