KR100680228B1 - Plasma display panel - Google Patents

Abstract

A plasma display panel is provided to reduce the number of address electrodes by using a main electrode formed on an address electrode and a protrusion electrode protruded from the main electrode. An upper substrate(10) includes a glass substrate(12), a dielectric(14), a scan electrode(10Y), a sustain electrode(10Z), and a protective layer(15). The dielectric is formed under the glass substrate. The scan electrode and the sustain electrode are formed in the dielectric. The protective layer is formed under the dielectric to protect it. A bus electrode(11) is formed under the scan/sustain electrodes to reduce resistance thereof. A lower substrate(20) includes a glass substrate(22), a dielectric(24) formed on an upper surface of the substrate, an address electrode(10X) formed in the dielectric, and a sidewall(25). The sidewall forms a predetermined space on an upper portion of the dielectric.

Description

 Plasma display panel {Plasma display panel}

1 is a partially cutaway perspective view showing a plasma display panel according to the prior art

2 is a plan view showing a delta discharge cell of the plasma display panel according to the prior art

3 is a partially cutaway perspective view showing a plasma display panel according to the present invention;

4 is a perspective view illustrating a sub-section of the lower substrate of the plasma display panel according to the present invention.

5 is a plan view showing the shape of the address electrode according to the present invention;

<Explanation of symbols on main parts of the drawings>

10: upper substrate 10X: address electrode

10X ': main electrode 10X ": protruding electrode

10Y: scan electrode 10Z: sustain electrode

11 bus electrode 12 glass substrate

14 dielectric layer 15 protective film

20: lower substrate 22: glass substrate

24: dielectric layer 25, 26: partition wall

C: discharge cell

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel and an address electrode according to the present invention, and more particularly, to a plasma display panel and an address electrode formed to control discharge cells of a column formed by a partition wall and discharge cells of an adjacent column.

The flat panel display includes a liquid crystal display (hereinafter referred to as "LCD"), a field emission display (hereinafter referred to as "FED"), and a plasma display panel (hereinafter referred to as "PDP"). Among these, the PDP is an apparatus for displaying an image including characters or graphics by emitting phosphors by 147 nm ultraviolet rays generated when the He + Xe or Ne + Xe inert mixed gas is discharged.

In this case, the PDP is not only thin and large in size, but also has a simple structure, which makes the PDP easier to manufacture, and has a higher luminance and higher luminous efficiency than other flat display devices.

1 is a partially cutaway perspective view illustrating a plasma display panel according to the related art.

As shown in FIG. 1, a PDP according to the related art includes an inert mixed gas (not shown) filled between an upper / lower substrate 1 (2) and an upper / lower substrate 1 (2). It is composed.

The upper substrate 1 may include a glass substrate 3 exposed to a user's field of view, a dielectric layer 4 formed on the bottom surface of the glass substrate 3, and a scan electrode formed inside the dielectric layer 4. 1Y), the sustain electrode 1Z, and a protective film 5 formed on the lower surface of the dielectric layer 4 to protect the dielectric layer 4.

The lower substrate 2 includes a glass substrate 6, a dielectric layer 7 formed on an upper surface of the glass substrate 6, an address electrode 1X formed in the dielectric layer 7, and the dielectric layer. And a partition 8 formed on the upper portion 7 and protruding toward the upper substrate 1 so as to fill the inert gas to form a predetermined space.

Here, the dielectric layer 4 may accumulate wall charges generated during plasma discharge, and the protective layer 5 may prevent the dielectric layer 4 from being damaged by sputtering generated during plasma discharge and release of secondary electrons. Improve the efficiency.

In addition, a phosphor (not shown) that emits visible light of any one of red, green, and blue colors is applied to the internal space formed by the partition wall 8, and the phosphor is excited by ultraviolet rays generated during plasma discharge and is red. The green light or the blue light may generate visible light.

The scan electrode 1Y, the sustain electrode 1Z, and the address electrode 1X are disposed perpendicular to each other.

Here, the discharge cells formed by the partition wall 8 are classified into stripe type, well type, delta type, and the like according to their shape.

2 is a plan view illustrating a delta type discharge cell of a plasma display panel according to the related art.

As shown in FIG. 2, in the delta discharge cell according to the related art, an address electrode 1X is formed between the partitions 8, respectively.

However, when manufacturing a high pixel PDP, when the address electrode 1X is formed in each column in which the discharge cells are formed as in the prior art, there is a problem in that the address electrode 1X should be formed closely.

In particular, when the address electrode 1X is closely formed, a flexible printed circuit (FPC) (not shown) / Chip On Film (hereinafter referred to as “FPC”) which bundles the address electrodes is formed. In addition to the complicated connection of the COF ', the FPC / COF may be difficult to repair during A / S due to the densely formed address electrode 1X.

In addition, when the address electrode 1X is formed in each column in which the discharge cells are formed, there is a problem in that the formation of the address electrode 1X is difficult and the cost is increased due to the tight spacing.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a plasma display panel and an address electrode according to which the address electrodes are formed to control the discharge cells of the column formed by the partition wall and the discharge cells of the adjacent column. There is this.

Plasma display panel according to the present invention for solving the above problems is a main electrode formed in any one of a plurality of columns; And an address electrode which protrudes from the main electrode and is formed of a protruding electrode formed in a discharge cell of a column adjacent to any one of the columns.

The main electrode is disposed at the center of the discharge cell row, and the protruding electrodes are alternately formed left / right with respect to the main electrode.

The plasma display panel includes a scan / hold electrode formed on a substrate facing the address electrode, and the protrusion electrode is positioned on the scan electrode side.

The plasma display panel includes a partition wall that forms a plurality of columns and is formed to elongate to form a delta type discharge cell, and the discharge cell columns formed by the partition walls are connected through channels spaced at predetermined intervals. The protruding electrode protrudes into discharge cells of adjacent rows in the channel.

Hereinafter, a plasma display panel of the present invention will be described with reference to the accompanying drawings.

3 is a partially cutaway perspective view illustrating a plasma display panel according to the present invention, FIG. 4 is a partially cutaway perspective view illustrating a lower substrate of the plasma display panel according to the present invention, and FIG. 5 is a shape of an address electrode according to the present invention. This is the top view shown.

3 or 4, the PDP according to the present invention is an inert mixed gas (not shown) filled between the upper and lower substrates 10 and 20 and the upper and lower substrates 10 and 20. It is configured to include.

The upper substrate 10 may include a glass substrate 12 exposed to a user's field of view, a dielectric layer 14 formed on a bottom surface of the glass substrate 12, and a scan electrode formed inside the dielectric layer 14. 10Y), the sustain electrode 10Z, and a protective film 15 formed on the lower surface of the dielectric layer 14 to protect the dielectric layer 14.

Here, the scan / hold electrode 10Y (10Z) is a transparent conductive metal, and is formed of indium tin oxide (Indium-Tin-Oxide) in the present embodiment, and the scan / hold electrode 10Y (10Z) having a large electric resistance. In order to reduce the resistance, the bus electrode 11 formed of a metal (mainly Ag or Cu) material having a low electrical resistance is formed below the scan / hold electrodes 10Y and 10Z.

In particular, the scan / hold electrodes 10Y and 10Z are formed parallel to each other at a predetermined interval, and the bus electrodes 11 formed on the scan / hold electrodes 10Y and 10Z are also formed parallel to each other.

In addition, the protective layer 15 is to prevent the dielectric layer 14 from being damaged by sputtering generated during plasma discharge. The protective layer 15 is formed of transparent magnesium oxide (MgO).

The lower substrate 20 may include a glass substrate 22, a dielectric layer 24 formed on an upper surface of the glass substrate 22, an address electrode 10X formed in the dielectric layer 24, and It includes a partition 25 to form a predetermined space on top of the dielectric layer 24 so that the inert gas can be filled.

Here, the address electrode 10X is formed to cross the scan / hold electrode 10Y and 10Z, and in the present embodiment, the address electrode 10X is orthogonal to the scan / hold electrode 10Y and 10Z. Is formed.

The dielectric layers 14 and 24 are formed of a low melting glass of transparent material and accumulate wall charges generated during plasma discharge.

The barrier rib 25 has a predetermined height and width to secure a uniform discharge space and prevent cross talk, and has a transparent low strength having sufficient strength to support the upper substrate 10. It is formed of melting glass.

Here, the partition wall 25 forms a predetermined discharge space (C) corresponding to the shape of the adjacent partition wall 26, the discharge space (C) is a long straight stripe type (stripe type), Well type and delta type are divided into well type.

Here, the delta type is a shape in which each discharge cell forming a discharge space is arranged in a triangle, and the discharge cells emit visible light of red, green, and blue, respectively.

In particular, the delta-shaped partition walls 25 and 26 may be formed in various shapes such as hexagons and squares, and in this embodiment, the partition walls 25 and 26 may form hexagonal discharge cells C. Form.

The barrier ribs 25 and 26 are formed long in the up / down direction to form the discharge cells C, and the discharge cells C arranged in the up / down direction are arranged in the barrier rib 25 ( It is connected via a channel 27 formed by the separation distance of 26.

As shown in FIG. 4 or 5, the address electrode 10X includes a main electrode 10X 'formed in a direction crossing the scan / sustain electrodes 10Y and 10Z, and the main electrode (10X). 10X ') and protrudes laterally to form a protruding electrode 10X "formed in the same direction as the scan / hold electrodes 10Y and 10Z.

Thus, when the scan / hold electrodes 10Y and 10Z are formed in the left / right direction, the main electrode 10X 'is formed in the up / down direction, and the protruding electrode 10X ″ is in the left / right direction. Is formed.

In particular, the main electrode 10X 'is formed long in the up / down direction along the discharge cell C, and the protruding electrode 10X ″ has a discharge cell C ′ having an end adjacent to the partition 25. ).

In addition, the protruding electrodes 10X ″ are alternately formed at the left and right sides of the main electrode 10 '.

In addition, the protruding electrode 10X ″ may protrude toward the scan electrode 10Y side of the scan / hold electrodes 10Y and 10Z.

Thus, the address electrode 10X formed as described above generates discharge in the discharge cells C 'adjacent to each other by the protruding electrode 10X "as well as the row in which the main electrode 10X' is disposed. The number of address electrodes 10X is reduced.

Looking at the discharge process of the discharge cell (C) as follows.

First, in order to discharge the R discharge cells of FIG. 5, each of the scan electrodes 100Y of the panel is reset discharged, and after the reset discharges, predetermined reset discharges are applied to the address electrodes 100X and the scan electrodes 100Y during the address period. A pulse that forms a potential difference is applied to cause an address discharge.

In this case, in the address discharge, a pulse is applied to the address electrode 100X for selecting the R discharge cell to select the discharge cells in the vertical column.

After the address discharge is performed, a pulse for generating a sustain discharge is applied to the sustain electrode 100Z to discharge the R discharge cell.

In addition, when the plurality of discharge cells R and G are discharged from the discharge cells in which the address electrode 100X is formed, each scan electrode 100Y of the panel is discharged in the same manner as the discharge cells R are discharged. ), A reset discharge is generated, and a pulse for forming a predetermined potential difference is applied to the address electrode 100X and the scan electrodes 100Y and 101Y after the reset discharge.

When a pulse is applied to the address electrode 100X for selecting the R and G discharge cells, the discharge cell G having the main electrode and the discharge cell R of the adjacent column having the protruding electrode are simultaneously Is selected.

When the address discharge is generated, a sustain pulse is applied to the sustain electrodes 100Y and 101Y formed in the R and G discharge cells.

Thus, even if the address electrode 100X is formed over two columns, only the main electrode or the protruding electrode of the address electrode 100X is formed in each discharge cell R (G) (B) to generate a discharge. .

Here, the direction of the negative / positive potential difference applied to the address electrode 100X and the scan electrode 100Y in the address discharge may be appropriately selected in some cases, and the reset may be performed in a subfield consisting of the reset / address / sustain discharge. The discharge may be omitted in some cases.

In addition, the PDP has red, green, and blue discharge cells gathered to form one pixel, and an address electrode is formed on each of the red, green, and blue colors, and a flexible printed circuit is connected by connecting the number of the address electrodes. 'FPC', not shown) / Chip On Film (hereinafter referred to as 'COF', not shown) is installed.

In the case of the 42-inch PDP, 1024 x 768 pixels are used, and 16 FPC / COFs including address electrodes used for the pixels are used.

In recent years, the number of pixels of the PDP is increased in accordance with the HD standard. As the number of pixels increases, the number of address electrodes controlling the pixels increases, and accordingly, the number of bundled FPC / COFs of the address electrodes also increases. do.

However, as the number of FPC / COFs increases, more FPC / COFs are installed in panels of the same size, so that the width of the FPC / COF becomes narrower, and when the width of the FPC / COF becomes smaller, it occurs in the FPC / COF. Problems occur due to the heat generated.

However, when one address electrode 10X controls up to the adjacent discharge cells C 'as in the present invention, the number thereof can be greatly reduced as compared with conventionally used address electrodes, and it is easier to manufacture a high pixel PDP.

As described above, the plasma display panel according to the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings disclosed herein, and those skilled in the art within the scope of the technical idea of the present invention are protected. Application is possible.

The plasma display panel according to the present invention configured as described above controls the discharge cells in which the main electrode formed in the address electrode is formed in one column, and the protruding electrode protruding from the main electrode is discharged in the adjacent column. Since the cells are controlled, the number of address electrodes can be reduced compared with the related art.

In addition, the plasma display panel according to the present invention may reduce the number of FPC / COFs enclosing the address electrodes even when the panel is manufactured with a high pixel, thereby making it easier to manufacture and repair the FPC / COF.

In addition, the plasma display panel according to the present invention has an effect of reducing the heat generation of the FPC / COF according to the decrease in the number of FPC / COF.

In addition, since the number of address electrodes formed when fabricating the PDP of the same pixel is reduced, the plasma display panel according to the present invention not only shortens the process but also forms the address electrodes at wider intervals. have.

Claims (5)

A main electrode formed in any one of a plurality of columns; And an address electrode protruding from the main electrode and formed of a protruding electrode formed in a discharge cell of a column adjacent to any one of the columns. The method according to claim 1, And the main electrode is disposed at the center of the discharge cell row. The method according to claim 1, And the protruding electrode is formed alternately in left and right with respect to the main electrode. The method according to claim 1, The plasma display panel includes a scan / hold electrode formed on a substrate facing the address electrode. And the protruding electrode is positioned at the scan electrode side. The method according to claim 1, Comprising a plurality of columns, including a barrier rib formed long to form a delta type discharge cell, the discharge cell column formed by the partition wall is connected through a channel spaced at a predetermined interval, the protruding electrode is the And a discharge cell of adjacent rows in the channel.

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