KR100346384B1 - A saperately-driving plasma display panel - Google Patents

Abstract

The present invention relates to a split-driven plasma display panel for dividing and driving discharge sustaining electrodes horizontally or vertically as the panel is enlarged. The divided driving type plasma display panel according to the present invention is manufactured as a horizontal division driving type in which the discharge sustain electrodes are divided into a plurality of electrode groups up and down and driven by a single driver, or formed by dividing the discharge sustain electrodes in left and right sides, and the same drive signal. A driver having a pair of left and right terminals that emits light is disposed in the center of the substrate, and the left and right terminals are connected to the left and right discharge sustaining electrodes one-to-one, respectively, and are manufactured in a vertically divided driving type, which is proportional to the number of divided electrode groups. The number of driving chips arranged is reduced.

Description

Split driving type plasma display panel {A saperately-driving plasma display panel}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a split-driven plasma display panel for dividing and discharging discharge sustaining electrodes horizontally or vertically as the panel is enlarged.

A plasma display panel is a type of display device that recovers image data input as an electrical signal by arranging a plurality of discharge tubes in a matrix shape and selectively emitting the same. The driving method of the plasma display panel is largely divided into the DC driving method and the AC driving method depending on whether the polarity of the voltage applied to maintain the discharge changes with time.

1 is an electrode connection diagram illustrating an electrode connection structure of a conventional horizontal split driving plasma display panel. As shown in the drawing, in the conventional horizontally divided driving plasma display panel, discharge sustaining electrodes formed of a pair of scan electrodes 11 and a common electrode 12 are formed on the substrate 100. It is wired so as to be divided and driven.

That is, the scan electrodes 11 of the upper half are connected and driven to the first scan electrode driver 13, and the scan electrodes 11 of the lower half are connected and driven to the second scan electrode driver 14. The common electrodes 12 are connected to one common electrode driver 15 so as to be driven.

Since the horizontal split drive type wiring structure increases in size, the number of discharge sustaining electrodes for maintaining the discharge increases as the plasma display panel becomes larger. Therefore, the discharge sustaining electrodes cannot be sequentially driven over an entire region for an image of one frame or one subfield. It is applied to divided driving by dividing into a plurality of electrode groups (two electrode groups in FIG. 1). Scanning electrodes of each divided electrode group are sequentially driven to implement an image of each frame or subfield. The multi-division driving type wiring structure is driven by applying the same driving signal to each of the electrodes in each of the divided electrode groups. For example, when driving the scanning electrodes of 480 lines by dividing them into two electrode groups, the same driving is performed on the first line and the 241th line, the second and the 242th lines, and the 240th and 480th lines, respectively. The signals are driven at the same time. If the same driving signal is applied from the same driver, the number of drivers can be reduced in terms of circuits. However, as shown in FIG. 2, the same sequence of electrodes in each electrode group is connected to each other in the electrode groups. It was not adopted because of the difficulty in forming the wiring pattern.

2 is an electrode connection diagram illustrating an electrode connection structure of a conventional vertical division driving plasma display panel. As shown in the drawing, in the conventional vertically divided driving plasma display panel, discharge sustaining electrodes formed of a pair of the scan electrodes 21 and the common electrode 22 are formed on the substrate 200. It is wired so as to be divided and driven.

That is, the scan electrodes 21a on the left side are connected to and driven by the first scan electrode driver 23, and the scan electrodes 21b on the right side are connected to and driven to the second scan electrode driver 24. . The common electrodes 22 are also divided into left and right sides, and the common electrodes 22a on the left side are driven by being connected to the first common electrode driver 25, and the common electrodes 22b on the right side are connected to the second common electrode driver ( It is connected so as to be connected to and driven.

The vertical division driving type connection structure is applied to improve the problem that the voltage drop between the start point and the end point of the electrode increases as the line resistance increases as the length of the plasma display panel increases. .

As described above, in the conventional split driving type plasma display panel, when the electrodes are divided into a plurality of electrode groups and driven, the number of driving drivers can be reduced in terms of circuits. There was a problem that could not be actively implemented.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a divided driving type plasma display panel in which discharge sustain electrodes are driven by dividing into a plurality of electrode groups and simultaneously driving each electrode group with a single driver. .

1 is an electrode connection diagram illustrating an electrode connection structure of a conventional horizontal split driving plasma display panel;

2 is an electrode connection diagram illustrating an electrode connection structure of a conventional vertical division driving plasma display panel;

3 is a connection diagram showing an electrode connection structure of a horizontally divided driving plasma display panel according to the present invention;

4A is a view illustrating the position of a connector disposed between a scan electrode driver and a plasma display panel to implement an electrode connection structure of the horizontally driven driving plasma display panel of FIG. 3;

Figure 4b is a view showing in detail the connection relationship inside the connector of Figure 4a,

5 is a connection diagram illustrating an electrode connection structure of a vertical division driving plasma display panel according to the present invention.

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

11. Scanning electrode 12. Common electrode

13. The first scanning electrode driver 14. The second scanning electrode driver

15. Common electrode driver 31. Scanning electrode

32. Common electrode 33. Scanning electrode driver

34. Common electrode driver 35. Connector

41. Scanning electrode 41a. Left scanning electrode

41b. Right Scanning Electrode 42. Common Electrode

42a. Common electrode 42b on the left. Common electrode on the right

43. Scanning electrode driver 44. Common electrode driver

100. Substrate 300. Substrate

400. Substrate

In order to achieve the above object, the horizontally divided driving plasma display panel according to the present invention includes: a front substrate and a rear substrate disposed to face each other at regular intervals to maintain a discharge space; Discharge sustaining electrodes formed of a pair of scan lines and common lines on a stripe parallel to each other on the front substrate; Address electrodes formed on the rear substrate on a stripe in a direction crossing each of the discharge sustain electrodes; And barrier ribs stacked on the rear substrate between the address electrodes in a stripe in a direction parallel to the address electrodes to form a discharge space, wherein the scan lines include a plurality of electrode groups. A scan electrode driver having a plurality of output terminals, wherein one electrode in each of the divided electrode groups is connected together to the same output terminals; And one common electrode driver for driving the common electrodes.

In addition, in order to achieve the above object, a vertically divided driving plasma display panel according to the present invention includes: a front substrate and a rear substrate disposed to face each other at regular intervals to maintain a discharge space; Discharge sustaining electrodes formed of a pair of scan lines and common lines on a stripe parallel to each other on the front substrate; Address electrodes formed on the rear substrate on a stripe in a direction crossing each of the discharge sustain electrodes; And barrier ribs stacked on the rear substrate between the address electrodes in a stripe in a direction parallel to the address electrodes to form a discharge space, wherein the scan lines and the common lines are arranged in the plasma display panel. It is divided into two left and right electrode groups, and arranged in the center in the left and right directions of the panel, and has a plurality of output terminals for outputting the same drive signal in pairs on both the left and right sides, the scan electrodes of the divided left electrode group is the left output A scan electrode driver connected one-to-one to terminals and one-to-one of the divided scan electrodes of the divided right electrode group; And a pair of output terminals disposed at the center in the left and right directions of the panel and outputting the same driving signal on each of the left and right sides, wherein common electrodes of the left electrode group are connected to the left output terminal and common electrodes of the right electrode group. And a common electrode driver connected to the right output terminal.

Hereinafter, the divisionally driven plasma display panel according to the present invention will be described in detail with reference to the accompanying drawings.

In the divided driving type plasma display panel according to the present invention, the front substrate, the back substrate (not shown) and the front substrate are arranged to face each other at regular intervals so as to maintain a discharge space in common regardless of the horizontal division driving type and the vertical division driving type. Discharge sustain electrodes consisting of a pair of scan lines and common lines on a stripe parallel to each other on the substrate, and a back surface between address electrodes and address electrodes formed on the back substrate on a stripe in a direction crossing the discharge sustain electrodes, respectively. The barrier ribs may be stacked on the substrate in a stripe in parallel with the address electrodes to form a discharge space. In these basic structures, the discharge sustaining electrodes are divided into a horizontal division driving type and a vertical division driving type according to how the connection structure is connected to the driver. The characteristics are as described below.

First, FIG. 3 is a connection diagram illustrating an electrode connection structure of a horizontally divided driving plasma display panel according to the present invention. As shown in the figure, in the horizontally divided driving plasma display panel according to the present invention, discharge sustaining electrodes formed of a pair of scan electrodes 31 and a common electrode 32 are formed on the substrate 300. These are divided into a plurality of electrode groups up and down and are connected to be driven by one drive driver. In fact, in the embodiment of Figure 3 is divided into two upper and lower electrode groups are connected to be driven by one drive driver.

That is, the scan electrodes 31 of the upper half and the scan electrodes 31 of the lower half correspond to each other and are connected to one scan electrode driver 33 to be driven. The common electrodes 32 are connected to the common electrode driver 34 through one common line by a common terminal.

In order to implement the electrode connection structure of the horizontally divided driving type plasma display panel, the connector 35 as illustrated in FIG. 4A is disposed at the left or right edge of the panel. 4B is a view showing in detail the wiring relationship inside the connector of FIG. 4A.

In particular, the above-described scan electrodes 31 of the upper half and scan electrodes 31 of the lower half correspond to each other and are connected to one scan electrode driver 33, one electrode for each divided electrode group. This means that they are driven by applying the same driving signal. For example, as shown in Fig. 4B, the upper electrode group consisting of 1, 2, 3, ..., n scan lines and n + 1, n + 2, n + 3, scan electrodes of 2n lines. .., The first and n + 1th lines, the second and n + 2th lines, ..., the nth line when divided into two electrode groups of the lower electrode group consisting of 2n scan lines And 2nth lines are connected to the terminals of the scan electrode driver 33 together. Therefore, the first line and the n + 1th line, the second line and the n + 2th line, ..., the nth line and the 2nth line are driven by the same driving signal. As a result, each scan electrode pair receives the same driving signal from the same driver, thereby reducing the number of driving elements (driving chips) in the driver in terms of circuits. Of course, if the scan lines are not divided into two electrode groups but divided into m electrode groups and driven by one driver, the number of driving chips in the scan electrode driving driver can be reduced to 1 / m.

5 is a connection diagram illustrating an electrode connection structure of a vertical division driving plasma display panel according to the present invention. As shown in the drawing, in the vertically divided driving plasma display panel according to the present invention, discharge sustaining electrodes formed of a pair of the scan electrode 41 and the common electrode 42 are formed on the substrate 400. They are divided into left and right and connected to one scan electrode driver 43 to be driven simultaneously.

That is, the scan electrodes 41a on the left side and the scan electrodes 41b on the right side are connected to both terminals of one scan electrode driver 43 to be connected and driven. At this time, since each pair of both terminals of the scan electrode driver 43 simultaneously outputs the same drive signal, the left and right scan electrodes of the same order are driven by the same drive signal at the same time.

The common electrodes 42 are also connected to the common electrodes 42a on the left side and the common electrodes 42b on the right side to be connected to and driven by one common electrode driver 44. Since both terminals of the common electrode driver 44 simultaneously output the same driving signal, the left and right common electrodes are simultaneously driven by the same driving signal.

The vertically divided driving type connection structure is essential to improve the problem that the voltage drop between the start point and the end point of the electrode increases as the line resistance increases as the size of the plasma display panel increases in length. Since only one driving driver drives the discharge sustaining electrodes divided into left and right sides, the number of driving elements (chips) in the driving driver can be reduced by half.

As described above, the divided driving type plasma display panel according to the present invention is manufactured in a horizontal division driving type in which the discharge sustaining electrodes are divided into a plurality of electrode groups up and down and driven by a single driver, or the discharge sustaining electrodes are divided into left and right sides. A driver having a pair of left and right terminals which form and emit the same driving signal is placed in the center of the substrate and manufactured in a vertically divided drive type in which left and right discharge sustaining electrodes are connected one-to-one to both left and right terminals, thereby forming a number of divided electrode groups. As a proportion, there is an advantage in that the number of driving chips disposed in the driver can be reduced.

Claims (2)

A front substrate and a rear substrate disposed to face each other at regular intervals to maintain a discharge space; Discharge sustaining electrodes formed of a pair of scan lines and common lines on a stripe parallel to each other on the front substrate; Address electrodes formed on the rear substrate on a stripe in a direction crossing each of the discharge sustain electrodes; And A plasma display panel comprising: barrier ribs stacked on the rear substrate between the address electrodes in a stripe in a direction parallel to the address electrodes to form a discharge space. A scan electrode driver having the plurality of scan lines divided into a plurality of electrode groups, and having a plurality of output terminals, wherein one electrode of each of the divided electrode groups is connected together to the same output terminals; And A common electrode driver for driving the common electrodes; And a horizontal divisional driving plasma display panel. A front substrate and a rear substrate disposed to face each other at regular intervals to maintain a discharge space; Discharge sustaining electrodes formed of a pair of scan lines and common lines on a stripe parallel to each other on the front substrate; Address electrodes formed on the rear substrate on a stripe in a direction crossing each of the discharge sustain electrodes; And A plasma display panel comprising: barrier ribs stacked on the rear substrate between the address electrodes in a stripe in a direction parallel to the address electrodes to form a discharge space. The scan lines and the common lines are divided into two electrode groups, left and right, A plurality of output terminals arranged in the center in the left and right direction of the panel and outputting the same driving signal in pairs on both the left and right sides, wherein the scan electrodes of the divided left electrode group are connected one-to-one to the left output terminals and are divided The scan electrodes of the right electrode group are connected one-to-one to the right output terminals; And It is disposed in the center in the left and right direction of the panel, and has a pair of output terminals for outputting the same driving signal, one on each side, the common electrodes of the left electrode group are connected to the left output terminal and the common electrodes of the right electrode group A common electrode driver connected to the right output terminal; And a vertical division driving plasma display panel.