KR100724363B1 - Plasma display panel - Google Patents

Abstract

The present invention relates to a plasma display panel. In the conventional plasma display panel having a delta partition wall structure, red (R), green (G), and blue (B) subpixels are not positioned on the same line, so that a diagonal screen is realized. There was a problem that does not correctly. In view of the above problems, the present invention provides a plasma display panel including a plurality of discharge cells including red (R), green (G), and blue (B) subpixels partitioned into delta partitions between an upper substrate and a lower substrate. The red and green subpixels of the red, green, and blue subpixels are adjacent to each other, and the remaining blue subpixels are formed under the adjacent portions of the red and green subpixels to form respective discharge cells. This has the effect of correcting straight lines and character implementations.

Description

Plasma Display Panel {PLASMA DISPLAY PANEL}

1A to 1C are explanatory views of stripe type, well type and delta type partition walls, respectively.

2 is an explanatory diagram of a structure of a plasma display panel having a delta partition of the prior art;

3 is a diagram illustrating a structure of a plasma display panel having a delta partition wall according to the present invention;

4 is an explanatory diagram of a structure of a plasma display panel in which driving electrodes are disposed only in subpixels other than empty subpixels according to the present invention;

5 is an explanatory diagram of a structure of a plasma display panel coated with a black layer on an empty subpixel according to the present invention;

** Description of the symbols for the main parts of the drawings **

R, G, B: Red, Green, Blue Subpixels E: Empty Subpixels

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel, and more particularly, to a delta-type partition wall structure in which red (R) and green (G) subpixels are arranged on the same line, and blue (B) subpixels are arranged on one line. In addition, the present invention relates to a plasma display panel capable of accurately implementing a character pattern.

A general plasma display panel (PDP) is a device that displays images 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 addition, the display quality is excellent and the response speed is fast.

PDPs are classified into a surface discharge type and an opposite type according to the electrode arrangement structure, and are classified into an AC discharge type, a DC discharge type, or a mixed type according to whether the electrode is exposed. In particular, a three-electrode AC surface discharge type PDP has a wall charge on the surface during discharge. Is accumulated and protects the electrodes from sputtering generated by the discharge, which has advantages of low voltage driving and long life.

The three-electrode alternating surface discharge type PDP has a partition between the lower substrate and the upper substrate to maintain the discharge distance, to equip the electro-optical crosstalk between the discharge cells, and to accommodate the phosphor.

1A to 1C are explanatory diagrams of stripe type, well type, and delta type Delta barrier rib structures, respectively.

As shown in FIGS. 1A and 1B, the stripe-type partition wall structure is a structure in which the partition walls are arranged in parallel in a predetermined width in one direction, and in the well-type partition wall structure, the partition walls in which the partition walls are arranged in parallel in a predetermined width are orthogonal in two directions. Structure. The stripe-type barrier rib structure is easy to exhaust, but has a disadvantage of having a small phosphor coating area, and the well-type barrier rib structure has a large phosphor coating area, which can increase luminance, but has a disadvantage in that it is not exhausted well.

Using only the advantages of the stripe-type barrier rib structure and the well-type barrier rib structure, the delta-type barrier rib structure shown in FIG. 1C has been devised. In the delta-type partition wall structure, one discharge subpixel is surrounded by six surfaces, so that the phosphor coating area is large, and the luminance can be improved by increasing the reflectance of the partition wall, and each discharge subpixel is connected to a narrow channel to facilitate exhaust or gas injection. It can be done. The shape of the discharge subpixel may have various shapes such as a hexagonal shape, a hexagonal shape, and an octagonal shape according to luminance characteristics, display characteristics, and the like.

FIG. 2 is an explanatory diagram of a structure of a plasma display panel having a delta partition wall of the prior art, and as shown in FIG. 2, hexagonal red (R), green (G), and blue (B) discharge subpixels are disposed at each vertex. A triangular or inverted triangular discharge cell is positioned, that is, a plurality of discharge cells form a series of discharge cells in which a triangle and an inverted triangle alternate with each other, such as a triangular discharge cell-inverted triangle discharge cell-triangle discharge cell.

In other words, in the arrangement of the discharge cells according to the prior art illustrated in FIG. 2, the red (R) and green (G) subpixels are located at the base of the triangle, and the blue (B) subpixel is located at the vertex of the triangle. If the red and green subpixels are located on the upper side of the inverted triangle and the blue (B) subpixels are located on the bottom vertex of the adjacent discharge cells, the triangular discharge cells and the inverted triangle discharge cells are alternated. Is formed.

However, in the prior art as described above, when a pattern such as a straight line or a character is implemented in a diagonal direction of the screen, there is a problem that an accurate pattern cannot be implemented. That is, in the plasma display panel according to FIG. 2, when a horizontal straight line is implemented in red, for example, the red (R) subpixel is positioned at the bottom side in one discharge cell and at the top side in the next adjacent discharge cell. By doing so, it is impossible to implement an accurate straight line.

Accordingly, the present invention has been made in view of the above problems, and the red (R) and green (G) subpixels are formed to be alternately adjacent to each other on the same line, and the red (R) and green (G) subpixels are formed. It is an object of the present invention to provide a plasma display panel in which a plurality of red (R), green (G), and blue (B) subpixels are positioned on the same line by forming B subpixels in an adjacent portion.

The present invention for achieving the above object comprises a plurality of discharge cells consisting of red (R), green (G), blue (B) subpixel partitioned into delta partitions between the upper substrate and the lower substrate. In the plasma display panel, red and green subpixels of the red, green, and blue subpixels are adjacent to each other, and the remaining blue subpixels are formed under the adjacent portions of the red and green subpixels to form respective discharge cells. The delta partition partitions the subpixel such that the blue subpixel is formed larger than the red and green subpixels.

In another embodiment of the present invention, an empty subpixel having no phosphor is formed between the blue subpixels.

In another embodiment of the present invention, the empty subpixels are coated with a black layer.

In another exemplary embodiment of the present invention, the driving electrodes of the plasma display panel may be disposed in the remaining subpixels among the red, green, blue, and empty subpixels except for the empty subpixel.

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

3 is a diagram illustrating a structure of a plasma display panel having a delta partition wall according to the present invention. As shown in the drawing, the plasma display panel according to the present invention has an inverted triangle discharge cell in which red (R) and green (G) subpixels are located at the upper edge of the inverted triangle, and blue (B) subpixels are located at the bottom vertex. It is an array. This is the same structure as the triangular discharge cell arrangement in which the red (R) and green (G) subpixels are located at the bottom vertex of the triangle and the blue (B) subpixel is located at the top vertex.

Referring to FIG. 3, since the red (R) and green (G) subpixels are positioned on the same line, and the blue (B) subpixel is located on one line, a straight line or a letter can be accurately represented in a diagonal direction.

In addition, preferably, the blue (B) subpixel may be configured to be larger than the red (R) or green (G) subpixel, and thus high color reproducibility and color temperature may be realized. In this case, since the unit discharge cell may have a structure close to a square, ultraviolet rays (VUV) formed during discharge uniformly reach the entire partition wall, thereby increasing the utilization rate of the phosphor, and increasing the aperture ratio of the discharge cell to increase luminance and This can lead to an increase in efficiency.

However, in the discharge cell structure according to FIG. 3, an empty subpixel E without phosphor may exist, but power consumption can be reduced by not providing an electrode in the empty subpixel E. As such, the efficiency may not be reduced.

4 is a diagram illustrating a structure of a plasma display panel in which driving electrodes are disposed only on subpixels (red (R), green (G), and blue (B)) other than the empty subpixel (E) according to the present invention. As shown in the drawing, driving power (Data, Scan Bus, Scan ITO, Sustain ITO, and Sustain Bus) may not be disposed in the empty subpixel, thereby reducing power consumption.

Also, preferably, the empty subpixels may be coated with a black layer to reduce external light reflectance, thereby increasing contrast.

5 is an explanatory diagram of a structure of a plasma display panel in which a black layer is coated on a blank subpixel according to the present invention. As shown therein, the empty subpixels may be applied to the black layer to reduce external light reflectance.

Although the present invention has been described with an example of a plasma display panel having a delta partition wall structure in which each subpixel is hexagonal, those skilled in the art can make various modifications and variations within the spirit and scope of the present invention. You can do it.

That is, the subpixel may be an octagonal or a 10 hexagonal rather than a hexagonal, and in particular, by varying the size and shape of the blue (B) subpixel, one discharge pixel may have a polygon shape other than an inverted triangle or a triangle. You might have

Therefore, although the embodiments of the present invention have been described in detail with reference to the drawings, the spirit and scope of the present invention should not be construed as being limited to the above embodiments, but should be defined within the scope of the appended claims and their equivalents. do.

As described in detail above, the present invention provides a discharge cell structure (or a partition structure) in which red (R), green (G), and blue (B) subpixels are repeated on the same line, thereby providing a straight line in the diagonal direction of the screen. This has the effect of correcting the character implementation.

In addition, by making the size of the blue (B) subpixel larger than the red (R) or green (G) subpixel, high color reproducibility and color temperature can be obtained.

Furthermore, the efficiency can be maintained by not disposing the driving electrode in the empty subpixel, and the external light reflectance can be reduced by applying the empty subpixel to the black layer.

Claims (5)

A plasma display panel comprising a plurality of discharge cells made of red (R), green (G), and blue (B) subpixels partitioned into delta partitions between an upper substrate and a lower substrate. Among the red, green, and blue subpixels, the red and green subpixels are formed adjacent to each other, and the remaining blue subpixels are formed under the adjacent portions of the red and green subpixels to form respective discharge cells. And subdividing the subpixels so that the blue subpixels are larger than the red and green subpixels. delete The method of claim 1, And an empty subpixel free of phosphor is formed between the blue subpixels. The method of claim 3, wherein And said empty subpixel is coated with a black layer. The method of claim 3, wherein And a driving electrode of the plasma display panel in the remaining subpixels among the red, green, blue, and empty subpixels except for the empty subpixel.

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