KR19990003562A - Manufacturing Method Of Plasma Display Panel - Google Patents

Abstract

The present invention discloses a method of manufacturing a plasma display panel. A method of manufacturing a plasma display panel according to the present invention disclosed herein is a method of manufacturing a plasma display panel including a back substrate and a front substrate, the method comprising: forming address electrodes in a stripe shape on the back substrate, independent of adjacent address electrodes; Forming a stripe-shaped partition walls with a paste mixed with MgO powder to define a phosphorous discharge space and preventing cross-talk between pixels, applying a phosphor in a discharge space defined by the partition walls, and discharging on the front substrate Forming a sustain electrode, laminating a dielectric layer and a protective layer on the front substrate including the discharge sustaining electrode; bonding the rear substrate and the front substrate to face each other; and discharging the back substrate and the front substrate joined together. Discharge gas into space Is characterized in that it comprises a step.

Description

Manufacturing Method Of Plasma Display Panel

The present invention relates to a method of manufacturing a plasma display panel, and more particularly, to a partition wall interposed between transparent substrates to prevent crosstalk between pixels.

In general, a plasma display panel (hereinafter referred to as PDP) is composed of an array of discharge cells capable of independently discharging and independently discharging each discharge cell according to an external electrical signal to generate a desired image signal. It is a flat panel display device to reproduce.

The PDP is formed between an address electrode and an address electrode for selecting a discharge cell, defines a separate discharge space, and has a rear substrate on which a barrier rib is formed to prevent crosstalk between pixels, and a transparent electrode for generating a discharge. The formed front substrate is bonded to form a structure. In addition, a phosphor for realizing color is applied to the upper side of the rear substrate and the partition wall, and discharge gases such as neon (Ne), xenon (Xe), or argon (Ar) are injected into the discharge space.

In general, the PDP can reduce the distance between the rear substrate and the front substrate to about 10 cm or less, thereby significantly reducing the thickness and weight of the display apparatus compared to the CRT display apparatus using the electron gun. In addition, by forming a wide interval of the partition wall can be obtained a larger screen than the liquid crystal display device, and has the advantage of improving the narrow viewing angle which is the weakest point of the liquid crystal display device.

Looking at the driving of the PDP having the above structure, when the voltage for displaying an image is applied to the transparent electrode formed on the front substrate, the gas in the discharge cell causes the discharge phenomenon, the ultraviolet ray is generated, such ultraviolet ray discharge cell Exciting the phosphor applied therein emits color light for each discharge cell to display a predetermined image.

However, the PDP according to the prior art is to sputter the partition wall in the process of the ion particles generated during the gas discharge to excite the phosphor, in which the sputtered partition material does not return to its original position after the discharge is finished, There was a problem that the brightness and life of the PDP is shortened by the adhesion.

Therefore, the present invention forms a partition wall with a paste of MgO powder having excellent secondary electron emission capability, thereby preventing the partition wall from being sputtered by the ion particles during gas discharge, as well as preventing secondary electron emission by MgO. It is an object of the present invention to provide a method for producing a PDP that can improve luminance by using the same.

1 is a cross-sectional view illustrating a plasma display panel according to the present invention.

* Explanation of symbols for main parts of the drawings

1: back substrate 2: address electrode

3: bulkhead 4: phosphor

5: front substrate 6: transparent electrode

7 bus electrode 8 dielectric layer

9: MgO layer

The above object is a method of manufacturing a plasma display panel including a back substrate and a front substrate, the method comprising: forming address electrodes in a stripe shape on the back substrate, and defining independent discharge spaces between the adjacent address electrodes; And forming stripe-shaped partition walls to prevent cross-torque between pixels with a paste mixed with MgO powder, applying a phosphor in a discharge space defined by the partition walls, and forming a discharge sustain electrode on the front substrate. Disposing a dielectric layer and a protective layer on the front substrate including the discharge sustaining electrode; bonding the rear substrate and the front substrate to face each other; and discharging the discharge gas into a discharge space formed by the back substrate and the front substrate joined together. Characterized in that it comprises the step of injecting It is achieved by a method of manufacturing a plasma display panel according to the present invention.

According to the present invention, the partition wall is formed of a paste in which MgO powder is mixed, thereby minimizing the sputtering of the partition wall and preventing the life of the PDP.

EXAMPLE

Hereinafter, a preferred embodiment of the present invention will be described in more detail with reference to FIG.

Usually, the PDP consists of a pair of transparent substrates, namely, the back substrate 1 and the front substrate 5. In the drawing, address electrodes 2 in the form of stripes are formed on the rear substrate 1, and partition walls 3 for defining independent discharge spaces between the address electrodes 2 and preventing cross-talk between pixels. ) Is formed. In addition, a part of the discharge space defined by the barrier rib 3, that is, the upper side of the address electrode 2 and the side of the barrier rib 3, one phosphor 4 selected from red, blue or green for realizing colorization is provided. It is applied to cover the address electrode (2).

On the other hand, on the front substrate 5 facing and disposed on the back substrate 1, transparent electrodes 6 for discharging are formed to be orthogonal to the address electrodes 2, and the applied voltage is maintained at the upper portion. Bus electrodes 7 are formed. Here, the transparent electrode 6 is repeatedly arranged and arranged with a sustain electrode to which a constant voltage is applied and a scan electrode to which a predetermined voltage to generate a discharge is applied. In addition, a dielectric layer 8 and an MgO layer 9, which is a protective layer for protecting the dielectric layer 8, are stacked on the front substrate 5 including the electrodes 6 and 7.

Although not shown, the back substrate 1 and the front substrate 5 are attached and sealed by a sealing paste, and neon, xen, or argon in the discharge space. Discharge gases such as are injected.

When a predetermined voltage is applied to the transparent electrode 6 formed on the front substrate 5 in order to display a predetermined image in the PDP having the above structure, the discharge gases injected into the discharge space are ionized by the applied voltage. The ultraviolet light is emitted, and the ultraviolet light excites the phosphor 4 to display a predetermined color image. At this time, since the phosphor 4 is applied to the upper side of the back substrate 1 and the side wall of the partition 3, the partition 3 is sputtered by ion particles during the excitation process of the phosphor 4, and the sputtered partition material is By attaching to the phosphor 4 without returning to place, the brightness of the PDP is reduced.

Therefore, in the present invention, a paste in which MgO powder is mixed is used as a material for forming the partition 3. In general, MgO is a ferroelectric chamber having a pervoskite structure, which is highly resistant to ionic particles, and has a high secondary electron emission. Therefore, when using a paste in which MgO powder is mixed as a material for forming the barrier ribs, the barrier ribs 3 are prevented from being sputtered, thereby increasing the life of the PDP and releasing a large amount of secondary electrons during discharge. The luminance of the PDP can be further improved.

As described above, in the PDP manufacturing method of the present invention, the partition wall is sputtered during gas discharge by forming a partition wall using a paste containing MgO powder having a high resistance by ion particles and excellent secondary electron emission ability. In addition to preventing, a large number of secondary electrons are emitted to improve the brightness of the PDP.

Meanwhile, although specific embodiments of the present invention have been described and illustrated, modifications and variations can be made by those skilled in the art. Accordingly, the following claims are to be understood as including all modifications and variations as long as they fall within the true spirit and scope of the present invention.

Claims (1)

A method of manufacturing a plasma display panel comprising a back substrate and a front substrate, the method comprising: forming address electrodes in a stripe shape on the back substrate, defining independent discharge spaces between adjacent address electrodes, and defining crosstalk between pixels; Forming stripe-shaped barrier ribs with a paste mixed with MgO powder, applying a phosphor in a discharge space defined by the barrier rib, and forming a discharge sustaining electrode on the front substrate; Stacking a dielectric layer and a protective layer on a front substrate, including bonding the rear substrate and the front substrate to face each other, and injecting a discharge gas into a discharge space formed by joining the rear substrate and the front substrate; Plasma display Method of manufacturing a panel.