KR20010039312A - Plasma display panel - Google Patents

Abstract

PURPOSE: A plasma display panel is provided to maximize discharge efficiency as discharge voltage is low and volume of plasma is large by improving electrode structure of upper plate as fence type electrode structure. CONSTITUTION: The first and the second substrate are arranged parallelly in a definite interval. The first electrodes are arranged in one direction to the first substrate. The second electrodes are arranged in turns between the first electrodes. The third electrodes are arranged at the second electrode to be crossed to the first, the second electrode. Display lines are composed of a pair of the first electrode and the second electrode to be arranged in turns. Pixels are formed at the intersection of display lines and the third electrode. Gas is filled and sealed in the definite gap between the first substrate and the second substrate to be arranged parallelly. The first and the second electrode include separately fence type electrode(3) to extend toward the second substrate from around the edge of the adjacent pixel partially per unit pixel.

Description

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 a plasma display panel in which an electrode structure provided on a front glass plate of a plasma display panel used in a TV or monitor and various flat panel display devices is improved.

As shown in FIG. 1, a top electrode structure of a conventional plasma display panel is coated with a transparent electrode 1 having a predetermined interval therebetween, and at both ends of the transparent electrode 1. The bus electrode 2 for power connection is apply | coated on the plane. Accordingly, plasma is formed in the unit pixel in such a manner that power is supplied through the bus electrode 2 to maintain discharge between the transparent electrodes 1 having a predetermined interval.

In other words, the upper plate of the conventional plasma display panel is provided with a transparent electrode 1 and a bus electrode 2 in the horizontal direction on the glass plate 7 as shown in FIG. 2A, and the lower plate of the plasma display panel is shown in FIG. 2B. As shown, the vertical signal electrodes 5 are installed on the glass plate 6 at regular intervals, and the partition walls 4 are installed in the vertical direction, and red (R) and green colors for the full color are formed between the partition walls 4. (G) and the blue (B) phosphor are coated and then bonded to the top plate.

In the conventional plasma display panel having such an electrode structure, the discharge sustain electrode is usually on the same plane, and the amount of plasma generated is proportional to the electrode surface.

Since the surface of the electrode is limited in the limited unit pixel size as described above, the amount of plasma generated is limited. When the amount of plasma generated is small inversely proportional to the amount of plasma, the energy of the plasma is continuously lost through the outer wall and the like, and thus, more energy is required to maintain the amount of plasma and its own energy through the discharge maintenance. Therefore, a large amount of energy for maintaining the discharge is reduced efficiency. At the same time, in the conventional plasma display panel having the above-described electrode structure, the smaller the size of the unit pixel, the lower the efficiency, which is a detrimental factor in pursuing high quality.

Accordingly, an object of the present invention is to provide a plasma display panel for improving the discharge efficiency by reducing the discharge voltage and increasing the volume of plasma.

In order to achieve the above object, a plasma display panel according to an exemplary embodiment of the present invention includes: first and second substrates arranged in parallel with a predetermined interval therebetween; A plurality of first electrodes arranged in one direction on the first substrate; A plurality of second electrodes alternately arranged between the first electrodes; A plurality of third electrodes arranged on the second substrate to intersect the first and second electrodes; A plurality of display lines formed of the alternately arranged first and second electrode pairs; A plurality of pixels formed at intersections of the plurality of display lines and a third electrode; A plasma display panel comprising a gas that is sealed and filled at a predetermined interval between the first and second substrates arranged in parallel to each other.

The first and second electrodes each include a fence electrode each extending toward the second substrate from the vicinity of an adjacent pixel side edge for each of the unit pixels.

1 and 2 illustrate an electrode structure of a conventional plasma display panel;

3 is an electrode structure diagram of a plasma display panel illustrating a basic concept of the present invention;

4 is an electrode structure diagram of a plasma display panel according to a first embodiment of the present invention;

5 is an electrode structure diagram of a plasma display panel according to a second embodiment of the present invention;

6 is an electrode structure diagram of a plasma display panel according to a third exemplary embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

1 transparent electrode 2 bus electrode

3: fence type electrode 4: partition wall

5 signal electrode 6 second substrate

7: first substrate 8: transverse bulkhead

9: vertical bulkhead

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

3 is an electrode structure diagram of a plasma display panel illustrating the basic concept of the present invention. The structure of the lower plate in the plasma display panel to which the present invention is adopted is the same as the conventional lower plate structure, and only the structure of the upper plate is different as follows. Flies

In FIG. 3, an electrode structure of one unit pixel is shown, and the unit pixel is largely composed of two parts, one of which is set as the first electrode on the left side and the other as the second electrode.

A pair of transparent electrodes 1 are applied to the bottom surface of the unit pixel to maintain a constant distance from each other, and an opaque metal fence-type electrode protrudes a predetermined value toward the bottom plate from near the edge of the adjacent pixel side at the edge of the unit pixel. (3) is formed, and the bus electrode 2 is connected to the fence electrode 3.

That is, the upper plate structure in FIG. 3 forms a fence-type discharge sustaining electrode (in the present invention, a pair of transparent electrodes 1 are called discharge sustaining electrodes).

FIG. 4 is an electrode structure diagram of a plasma display panel according to a first embodiment of the present invention, in which an electrode of an upper plate of a conventional plasma display panel is formed by adopting a fence type electrode as shown in FIG. 3. An electrode of the upper plate of FIG. 4 is orthogonal to an electrode (for example, a signal electrode) of a lower plate (not shown). In FIG. 4, an electrode structure of six unit pixels is illustrated.

Reference numeral 1 is a transparent electrode, 2 is a bus electrode, 3 is a fence electrode, 7 is a top glass plate, 8 is a horizontal partition wall, and 9 is a vertical partition wall.

On the upper glass plate 7, grids 8 and 9 are formed in the horizontal and vertical directions to form individual discharge spaces for each unit pixel. The lattice-shaped partition walls 8 and 9 improve contrast. On the upper plate glass plate 7, a pair of transparent electrodes 1 are applied to the bottom surface in the horizontal direction while maintaining a predetermined distance from each unit pixel. An inner surface of the horizontal partition wall 8 and the vertical partition wall 9 is coated with a fence-type electrode 3 made of an opaque metal material to increase the plasma generation amount of the pixel during individual discharge.

In FIG. 4, the bus electrode 2 is applied on the horizontal partition wall 8 to be connected to the transparent electrode 1 via the fence-shaped electrode 3, and the horizontal partition wall 8 and the vertical partition wall 9 are separated from each other. The height is smaller than the bulkhead height of the bottom plate.

FIG. 5 is a diagram illustrating an electrode structure of a plasma display panel according to a second exemplary embodiment of the present invention, in which an electrode of an upper plate of a conventional plasma display panel adopts a fence shape as shown in FIG. 3. 5 is a structure in which the disposition of the transparent electrode is formed along the fence-type electrode to increase the discharge density of the sustain electrode. 5 exemplarily illustrates an electrode structure of six unit pixels.

Reference numeral 1 is a transparent electrode, 2 is a bus electrode, 3 is a fence electrode, 7 is a top glass plate, 8 is a horizontal partition wall, and 9 is a vertical partition wall.

In FIG. 5, the surfaces of the pair of transparent electrodes 1 per unit pixel are lengthened in the vertical direction at a predetermined distance. On the inner side of the horizontal partition 8 and the vertical partition 9 surrounding the outer edge of the transparent electrode 1, a fence type electrode 3 made of an opaque metal material is applied to discharge the plasma amount of the pixel when the pixel is discharged individually. Increase The fence-shaped electrodes 3 and the transparent electrodes 1 existing per unit pixel are symmetrical to each other.

The bus electrode 2 is coated on the horizontal partition 8 to be connected to the transparent electrode 1 via the fence electrode 3, and the height of the horizontal partition 8 and the vertical partition 9 is lower than that of the lower plate. Smaller than the bulkhead height

FIG. 6 is an electrode structure diagram of a plasma display panel according to a third exemplary embodiment of the present invention, wherein a top electrode of a fence electrode type plasma display panel having a long edge electrode structure provided in a direction opposite to that of electrodes in a conventional plasma display panel is shown. The structure is shown. 6 exemplarily illustrates an electrode structure of six unit pixels.

Reference numeral 1 is a transparent electrode, 2 is a bus electrode, 3 is a fence electrode, 7 is a top glass plate, 8 is a horizontal partition wall, and 9 is a vertical partition wall.

In FIG. 6, the pair of discharge sustaining electrodes independently correspond to the respective phosphors by setting the direction of the bus electrode 2 in the same direction (vertical direction) as the partition wall of the lower plate (not shown), and the signal electrode of the lower plate is It is an electrode structure provided in the direction (horizontal direction) perpendicular | vertical to a partition.

A pair of transparent electrodes 1 are applied to the upper glass plate 7 at predetermined intervals for each unit pixel in a vertical direction, and the vertical partition walls of the upper plate are disposed in the same direction as the vertical partition walls (see FIG. 2; 9) is installed and a horizontal partition 8 is additionally installed.

An inner surface of the horizontal barrier rib 8 and the vertical barrier rib 9 is coated with an opaque metal fence type electrode 3 to increase the plasma generation amount of the pixel during individual discharge.

The bus electrode 8 is connected to the power source in the longitudinal direction by connecting the bus electrode 8 on the horizontal partition 8, and the height of the horizontal partition 8 and the vertical partition 9 is smaller than the height of the partition of the lower plate.

As a result, the length of the edge of the transparent electrode 1 in FIGS. 5 and 6 is longer than the length of the edge of the transparent electrode in the conventional plasma display panel.

The electrode structure of FIG. 6 described above is an electrode structure in which plasma is generated by discharge between two transparent electrodes 1 having long edges between the barrier ribs and the barrier ribs, maximizing the area of the electrode and between the gaps of the transparent electrodes of the long edges. This is a highly efficient electrode structure with a large amount of ultraviolet rays generated.

According to the plasma display panels according to the first to third embodiments of the present invention configured as described above, the electrode surface is formed by applying the opaque metal fence electrode 3 to the partition walls 8 and 9 of the upper plate. It is fully available and thus lowers the discharge voltage. The fence electrode 3 minimizes the loss of the plasma generated during the discharge in the individual unit pixels, thereby increasing the amount of plasma generated.

In addition, as the electrode surface becomes wider than before, the space for forming the plasma becomes large and the energy loss of the plasma is reduced, thereby performing stable space discharge. By individualizing the unit pixels by the partition wall, interaction with neighboring pixels is prevented, and the pixel size is smaller than that of the conventional plasma display panel, thereby enabling high image quality.

Meanwhile, in the embodiments of the present invention, the partitions 8 and 9 are formed on the upper plate, but in some cases, only the bus electrode and the fence type electrode may be formed without forming the partitions 8 and 9 formed on the upper plate. In this case, the same effect can be obtained, but the contrast may be somewhat reduced.

According to the present invention as described above, by improving the electrode structure of the upper plate into a fence type electrode structure, the discharge voltage is low and the volume of plasma is large, maximizing the discharge efficiency.

Meanwhile, the present invention is not limited only to the above-described embodiments, but may be modified and modified within the scope not departing from the gist of the present invention, and the technical idea due to such modifications and variations is within the scope of the following claims. Should be seen.

Claims (8)

First and second substrates arranged in parallel with a predetermined distance from each other; A plurality of first electrodes arranged in one direction on the first substrate; A plurality of second electrodes alternately arranged between the first electrodes; A plurality of third electrodes arranged on the second substrate to intersect the first and second electrodes; A plurality of display lines formed of the alternately arranged first and second electrode pairs; A plurality of pixels formed at intersections of the plurality of display lines and a third electrode; A plasma display panel comprising a gas that is sealed and filled at a predetermined interval between the first and second substrates arranged in parallel to each other. And the first and second electrodes each include a fence-type electrode extending toward the second substrate from the vicinity of an adjacent pixel side edge for each of the unit pixels. The method of claim 1, Wherein the pixel is rectangular and the fence electrode extends toward the second substrate from a pixel edge parallel to the one direction. The method of claim 2, And another fence electrode extending from the portion of the edge connected to the edge parallel to the one direction toward the second substrate. The method of claim 3, wherein And the first and second electrodes further include transparent electrodes connected to the fence electrodes and formed on a plane of each pixel. The method of claim 4, wherein And the fence type electrode is made of an opaque metal material to substantially function as a bus electrode. The method of claim 2, And a stripe-shaped partition wall parallel to the one direction partitioning the pixels from each other on the first substrate, wherein the fence-type electrode is formed in the partition wall. The method of claim 3, wherein And a matrix type partition wall partitioning pixels on the first substrate, and the other fence type electrode is further formed on a partition wall in a direction orthogonal to the one direction of the matrix partition wall. The method according to any one of claims 1 to 7, The fence type electrodes and the transparent electrodes of the first and second electrodes are formed to be diagonally symmetrical with respect to pixels in a unit pixel, respectively.