KR20040065437A - adress electrode of plasma display pannel - Google Patents

Abstract

PURPOSE: An address electrode of a plasma display panel is provided to achieve the address electrode suitable for a high definition screen by improving in a structure having a surplus space at a terminal part of an outer panel. CONSTITUTION: A plasma display panel comprises a front plate, a rear plate, an effective surface(20) arranged in opposition with a mutual crossing shape about the front plate and the rear plate, a plurality of address electrode(40) formed with a top and a bottom direction of the effective surface, and a terminal part located at a top and a bottom part of the effective surface and having a predetermined block electrode(80a,80b) to classify the address electrode with a predetermined arrangement number. One side of the address electrode patterned at the effective surface is connected alternately with an upper side block electrode and a lower side block electrode. The upper side block electrode and the lower side block electrode at both terminal part is arranged with a mutual crossing position.

Description

Address electrode of plasma display panel

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel, and more particularly, to an address electrode of a plasma display panel having a structure effective for producing address electrodes provided in three columns per unit pixel of the panel.

Plasma display device is a display device characterized by the color implementation by the discharge, the device has been in the spotlight recently because of the excellent response to the large size of the screen and the image change. In the known plasma display apparatus, AC and DC types are developed for each driving method, and surface discharge type and counter discharge type are classified according to the discharge type, but the AC drive type surface discharge type is generally used.

The AC drive type surface discharge plasma display is normally sealed on the front side substrate to be a display surface such as an image in addition to the basic configuration in which the surroundings are sealed to maintain the airtightness in a state where two glass substrates are disposed to face each other. The stripe-shaped display electrodes in which the scan electrodes and the sustain electrodes are paired are arranged in pairs, and the light shielding layer is arranged between the display electrodes arranged close to the substrate. The scan electrode and the sustain electrode are each supplied with power through dedicated transparent electrodes, and the transparent electrodes are branched from the main power line and arranged. The transparent electrode is usually formed of ITO, SnO _2, or the like, and the main power line is formed of a laminate of chromium and copper foil, or a laminate of silver foil or the like.

In recent years, display electrodes have been directly deployed on main power lines without transparent electrodes. On the front substrate, a dielectric layer made of borosilicate glass or the like is covered with a plurality of rows of electrode groups, and a top surface of the dielectric layer is covered with a manganese oxide layer. In addition, a configuration in which a protective layer having a high secondary electron emission coefficient is formed is also implemented.

A data electrode is formed at a position perpendicular to the scan electrode and the sustain electrode, and a stripe-shaped partition wall is disposed in a direction parallel to the data electrode between adjacent data electrodes. The side of the partition wall has a discharge cell provided with a phosphor layer to cover the data electrode. The discharge cell is enclosed with a specific gas, for example, a gas such as helium, neon, argon, xenon or the like.

The above-described plasma display apparatus has two glass substrates facing each other and the space therebetween is maintained in a vacuum so that the data electrodes are arranged orthogonally to the scan electrodes and the sustain electrodes with a narrow discharge space therebetween. When a high voltage is applied, a discharge occurs.

In the initial operation, a high voltage exceeding the discharge start voltage is applied to the scan electrode or the sustain electrode, so that discharge occurs in all the discharge cells, or formation and dissipation of wall charges occurs. Next, in the image display operation, when + image display voltage is applied to the data electrode and-scan pulse voltage to the scan electrode, image display discharge occurs in the discharge space, and + charge is accumulated on the surface of the protective film layer on the scan electrode. When the positive voltage is applied to the scan electrode and the negative voltage is applied to the sustain electrode at the beginning of the sustain operation, the sustain discharge is started by the + charge on the surface of the protective layer on the scan electrode. After that, the sustain operation is continued by alternately applying the + sustain pulse voltage to the scan electrode and the sustain electrode. The sustain discharge is stopped by applying the + erase pulse voltage to the sustain voltage.

In the plasma display device having such a configuration, the unit pixels are generally formed in a square shape, and since each pixel is composed of three cells of R, G, and B, the address electrodes for operating them independently are the number of bus electrodes. Three times more.

Therefore, on the glass substrate, the address electrodes are arranged to have a minimum pitch of 1/2 or less compared to the pitch of the bus electrodes. In addition, the alignment mark necessary for sealing two glass substrates in addition to the address electrode must be displayed on the substrate, and the number of pixels must be arranged in a limited range because the number of pixels is significantly increased in a high-definition screen. Very high.

As an example, FIG. 4 shows an example of a conventional address electrode pattern. The address electrode patterns 4 of the display unit arranged on the front of the effective surface 2 of the illustrated panel reach the terminal portions 6 on both sides. Gathering narrower while drawing a symmetrical oblique line, the inter-electrode pitch A is formed wider than the pitch B in the terminal portion 6. The reason for this patterning is to consider the interference between adjacent blocks in the terminal portion 6 and to secure a space for displaying the alignment mark required for the mounting process. It must be gathered narrowly, and the diagonal pattern at this time is confused in the visual inspection, which causes the inspection defect rate to increase. Such a pattern can be applied to a single array and is impossible for a dual array, and thus becomes a big design difficulty in a high-definition screen having a large number of electrodes.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems in the prior art to provide an address electrode of a plasma display panel that can be suitably used for a high-definition screen by improving the structure in which a space can be left in the terminal portion provided outside the panel. I put it.

In order to achieve the above object, the present invention provides a plasma display panel in which a glass upper plate and a lower glass plate are disposed to face each other at a predetermined fine interval, and the positions of the two terminal blocks alternately positioned outside the effective surface of the panel are alternately arranged. Arranged in such a manner that one side of the address electrode patterned on the effective surface is connected to allow a space in the terminal portion.

The patterning of the address electrodes may be diagonally drawn at narrow intervals to reach the terminal portion, may be extended in parallel at the same intervals, or may be extended in diagonal lines in the opening direction.

1 is a front view showing an address electrode pattern of an embodiment according to the present invention.

2 is a front view showing an address electrode pattern of another embodiment according to the present invention.

3 is a front view showing an address electrode pattern of another embodiment according to the present invention.

4 is a front view illustrating an example of a conventional address electrode pattern.

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

1 is a front view illustrating a plasma display panel according to an exemplary embodiment of the present invention, in which an electrode pattern 40 is disposed in an upward and downward direction of an effective surface 20 in which a front substrate and a rear substrate are disposed to face each other in an intersecting manner. Many of these are formed, and one of the end portions of the electrode pattern 40 is connected to the terminal portions 60a and 60b provided on the upper and lower sides of the effective surface 20.

On the other hand, the terminal portion 60 is provided with a predetermined number of block electrodes 80a and 80b, respectively, in order to divide the electrode pattern 40 into a predetermined number of arrays, which are arranged in equal positions to each other as shown. One end of the electrode pattern 40 is connected to one of the block electrodes 80a and 80b.

In this way, the block electrodes 80a and 80b can be spaced apart from one another by a considerable distance, and the widths between the lines of the block electrodes 80a and 80b can also be set wide. As a result, the electrode patterns 40 Even if the width of the block electrodes 80a and 80b is set to be smaller than the width of), the interval between the diagonal lines becomes wider, and the optical illusion phenomenon is reduced during the patterning inspection through the naked eye, thereby reducing the determination error.

The present invention is not limited to the above-described embodiment, and the block electrodes 80a and 80b may be arranged in the same width as the electrode pattern 40 as shown in FIG. 2, and in this case, the electrode patterns 40 and The block electrodes 80a and 80b are connected in parallel.

3, the widths of the block electrodes 80a and 80b can be set wider. In this case, when the electrode pattern 40 is connected to the block electrodes 80a and 80b, an oblique line that extends outward is formed. However, since the diagonal line width becomes considerably wider, an error in patterning inspection through the naked eye is more likely to occur. It will not occur.

As described above, according to the present invention, the glass upper plate and the glass lower plate are disposed to face each other at a predetermined fine interval, and terminal portions are provided in directions perpendicular to each other, and block electrodes are equally arranged at the terminal portions to be formed across the effective surface of the panel. In a plasma display panel having a structure connected to an end portion of an electrode pattern, the positions of the block electrodes provided by the terminal portions positioned above and below the panel are equally arranged so that the top and bottom sides are alternately arranged, and either end of the electrode pattern is provided. Since spaces are provided in the upper and lower terminal portions of the panel by connecting to the alternately arranged block electrodes, the arrangement width of the block electrodes can be set to be wider while including an alignment mark. We show effect that can increase pitch between electrodes In addition to reducing the cost of elimination of printed circuit boards (FPC), it is possible to easily catch patterning defects such as disconnection and short-circuit of electrode patterns etched by the photolithography method. It has a lowering effect.

In this way, the width of the electrode pattern can be set to be wide, and thus, a technique that has not been tried in the past, that is, patterning using a wire as an electrode material can also be achieved, thereby reducing the manufacturing cost of the plasma display panel.

Claims (4)

A plasma display panel comprising a configuration in which an address electrode is formed on an effective surface of a panel in which a glass upper plate and a glass lower plate are disposed to face each other at a predetermined fine interval such that terminal portions are provided in both sides, and an end thereof is connected to a block electrode of the terminal portion. In The upper block electrode and the lower block electrode are arranged at mutually staggered positions in the both terminal portions, and one side end of the address electrode patterned on the effective surface is alternately connected to the upper block electrode and the lower block electrode. Address electrode. The address electrode of claim 1, wherein an array width of the address electrodes is set to be wider than a block electrode array width of the terminal portion. 2. The address electrode of a plasma display panel according to claim 1, wherein an array width of said address electrodes is set equal to a corresponding block electrode array width of a terminal portion. The address electrode of a plasma display panel according to claim 1, wherein an array width of the address electrodes is set to be smaller than a block electrode array width of the terminal portion.