KR100726651B1 - Plasma Display Apparatus and Driving Method Thereof - Google Patents

Abstract

The plasma display device according to the present invention comprises: a) a plasma display panel divided into p (p is two or more natural numbers) scan electrode blocks, the scan electrode to which a scan pulse is applied and the data electrode to which a data pulse is applied; and b) an addressing period. And a scan electrode driver configured to drive the scan electrodes such that q of q scan electrode blocks (q is a natural number of p or less) and a scan electrode block positioned after each of the q scan electrode blocks overlap each other. . In addition, the driving method of the plasma display apparatus includes scanning so that each of the q number of scan electrode blocks (q is a natural number less than or equal to p) and a scan electrode block positioned after each of the q number of scan electrode blocks overlap each other in the addressing period and the addressing period Driving the data electrode when the scan electrode block is scanned.

Scan electrode, scan electrode block, overlap

Description

Plasma Display Apparatus and Driving Method Thereof}

1 illustrates a gray scale representation method of a general plasma display apparatus using subfields.

2 is a block diagram of a conventional plasma display device.

3 is for explaining the concept of the plasma display device according to the present invention.

4 is a flowchart of a method of driving a plasma display device according to the present invention.

5 is a configuration diagram of a plasma display device according to a first embodiment of the present invention.

6 is a configuration diagram of a plasma display device according to a second embodiment of the present invention.

7 is a configuration diagram of a plasma display device according to a third embodiment of the present invention.

8 is a configuration diagram of a plasma display device according to a fourth embodiment of the present invention.

The present invention relates to a plasma display device and a driving method, and more particularly, to provide a plasma display device and a driving method for driving a scan electrode.

1 illustrates a gray scale representation method of a general plasma display apparatus using subfields. As shown in FIG. 1, in order to drive the plasma display apparatus using a subfield, one frame time (16.7 ms) is divided into n subfields, and each subfield has a reset period and an address. It is divided into an address period and a sustain period.

In FIG. 1, the number of subfields is eight, and the reset section and the address section are displayed as one section. In order to express gradation, the sustain intervals of each subfield are assigned different weights, and the gradation is represented by an appropriate combination of these subfields. When eight subfields are used, the number of gray levels that can be expressed is 256.

As described above, when subfields are used for gray scale representation, each subfield has a reset period and an address period. In this case, the address period of the conventional plasma display device increases as the resolution increases. For example, in the case of a high definition (HD) -class plasma display device supporting 1920 x 1080 resolution, addressing periods are increased because addressing of 1920 scan electrodes must be sequentially performed within an address period. Therefore, the wall charge state of the scan electrode scanned at the front of the address period and the wall charge state of the scan electrode scanned at the back of the address period are different.

In order to overcome such a problem, a plasma display apparatus for driving the whole scan electrode divided into blocks has been proposed.

2 is a block diagram of a conventional plasma display device. The conventional plasma display apparatus includes a plasma display panel 100 including scan electrodes Y1 to Yn, data electrodes X1 to Xm, and sustain electrodes Z1 to Zn divided into blocks, and two or more scan electrode blocks ( The scan electrode driver 210 driving the scan electrodes Y1 to Yn divided into B1 to Bp, the data electrode driver 220 to drive the data electrodes X1 to Xm, and the sustain electrodes Z1 to Zn are driven. It includes a sustain electrode driver 230.

The scan electrode driver 210 applies a reset pulse through the scan electrodes Y1 to Yn in the reset period to uniform the amount of charge in the cell.

Thereafter, the scan electrode driver 210 applies a scan pulse to each scan electrode block B1 to Bp in order to select a cell to be turned on. That is, the scan electrode driver 210 sequentially applies a scan pulse to the first scan electrodes Y1, Y4, and Y (n-2) of the scan electrode blocks B1 to Bp. Next, the scan electrode driver 210 sequentially applies a scan pulse to the second scan electrodes Y2, Y5, and Y (n−1) of each scan electrode block B1 to Bp. Finally, the scan electrode driver 210 sequentially applies a scan pulse to the third scan electrodes Y3, Y6, and Yn of each scan electrode block B1 to Bp. As such, when a scan pulse is applied to the last scan electrode constituting each scan electrode block, the addressing process is completed.

As described above, in the scanning process according to the scan electrode block, the entire scan electrodes are scanned in an irregular order as compared with sequentially scanning the entire scan electrodes (Y1-Y2-Y3-Y4 -......- Yn-1-Yn). (Y1-Y4-Y7- …… -Yn-2-Y2-Y5-Y8- …… -Yn-1-Y3-Y6-Y9- …… -Yn) ensures uniform wall charges of the scan electrodes It is advantageous to.

However, when the scan process is performed according to the scan block, the boundary area between the scan block and the adjacent scan block becomes prominent as a straight line.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and to provide a plasma display apparatus and a driving method which can reduce the visible appearance of the boundary of each block display area.

The plasma display device according to the present invention comprises: a) a plasma display panel divided into p (p is two or more natural numbers) scan electrode blocks, the scan electrode to which a scan pulse is applied and the data electrode to which a data pulse is applied; and b) an addressing period. And a scan electrode driver configured to drive the scan electrodes such that q of q scan electrode blocks (q is a natural number of p or less) and a scan electrode block positioned after each of the q scan electrode blocks overlap each other. . In addition, the driving method of the plasma display apparatus includes scanning so that each of the q number of scan electrode blocks (q is a natural number less than or equal to p) and a scan electrode block positioned after each of the q number of scan electrode blocks overlap each other in the addressing period and the addressing period Driving the data electrode when the scan electrode block is scanned.

Specific details of other embodiments are included in the detailed description and the drawings. Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings.

3 is for explaining the concept of the plasma display device according to the present invention. As shown in FIG. 3, the plasma display apparatus according to the present invention includes a plasma display panel 100, a scan electrode driver 215, a data electrode driver 220, and a sustain electrode driver 230.

<Plasma display panel>

The plasma display panel 100 is divided into p scan electrodes blocks B1 to Bp (p is a natural number of two or more), scan electrodes Y1 to Yn to which scan pulses and sustain pulses are applied, and data electrodes to which data pulses are applied. (X1 to Xm) and the sustain electrodes Z1 to Zn to which a sustain pulse is applied. The number of scan electrodes included in each scan electrode block B1, B2, ..., Bp may be different. In addition, the number of scan electrodes included in each scan electrode block B1, B2, ..., Bp is more preferably the same. In addition, the number of scan electrodes included in the scan electrode blocks of a part of the entire scan electrode blocks may be different from the number of scan electrodes included in the remaining scan electrode blocks.

<Scan electrode driver>

In the addressing period, the scan electrode driver 215 scans each of q scan electrode blocks (q is a natural number of p or less) among the p scan electrode blocks B1 to Bp and a scan electrode positioned after each of the q scan electrode blocks. The scan electrodes are driven such that the blocks overlap.

<Data electrode driver>

The data electrode driver 220 performs an addressing process by applying a data pulse through the data electrodes X1 to Xm when the scan electrode driver 210 applies a scan pulse through the scan electrode blocks B1 to Bp.

<Sustain electrode driving section>

The sustain electrode driver 230 maintains the discharge of the selected cells in the addressing period by applying the sustain pulse through the sustain electrodes Z1 to Zn alternately with the sustain pulse applied by the scan electrode driver 215 in the sustain period.

Next, a driving method of the plasma display device of the present invention will be described in detail with reference to FIGS. 3 and 4.

4 is a flowchart of a method of driving a plasma display device according to the present invention.

First, the scan electrode driver 215 applies a reset pulse to all of the scan electrode blocks in the reset period (S410).

In the addressing period, the scan electrode driver 215 drives the scan electrodes such that each of the q number of scan electrode blocks (q is a natural number less than or equal to p) and a scan electrode block positioned after each of the q number of scan electrode blocks overlap each other ( S420).

In this case, when q scan electrode blocks are all scan electrode blocks, the scan electrode driver 215 drives the scan electrodes such that each of the scan electrode blocks overlaps with a scan electrode block located thereafter. In addition, when q scan electrode blocks are not all scan electrode blocks, the scan electrode driver 215 drives the scan electrodes such that each of the q scan electrode blocks overlaps with a scan electrode block located thereafter, and the remaining scan electrode blocks are located later. The scan electrode is driven so that overlapping with the scan electrode block does not occur.

The data electrode driver 220 performs an addressing process by applying a data pulse through the data electrodes X1 to Xm when the scan electrode driver 215 applies a scan pulse through the scan electrode blocks B1 to Bp ( S430).

The scan electrode driver 215 and the sustain electrode driver 230 alternately apply sustain pulses to the scan electrodes Y1 to Yn and the sustain electrodes Z1 to Zn in the sustain period, respectively, to maintain the discharge of selected cells in the addressing period. (S440).

In this case, the number of scan electrodes included in each scan electrode block B1, B2, ..., Bp may be different. In addition, the number of scan electrodes included in each scan electrode block B1, B2, ..., Bp is more preferably the same.

<Example 1>

5 is a configuration diagram of a plasma display device according to a first embodiment of the present invention.

The plasma display panel 100 is divided into p scan electrodes blocks B1 to Bp (p is a natural number of two or more), scan electrodes Y1 to Yn to which scan pulses and sustain pulses are applied, and data electrodes to which data pulses are applied. (X1 to Xm) and the sustain electrodes Z1 to Zn to which a sustain pulse is applied. The number of scan electrodes included in each scan electrode block B1, B2, ..., Bp may be different. In addition, the number of scan electrodes included in each scan electrode block B1, B2, ..., Bp is more preferably the same. In addition, the number of scan electrodes included in the scan electrode blocks of a part of the entire scan electrode blocks may be different from the number of scan electrodes included in the remaining scan electrode blocks.

In the addressing period, the scan electrode driver 215 scans each of q scan electrode blocks (q is a natural number of p or less) among the p scan electrode blocks B1 to Bp and a scan electrode positioned after each of the q scan electrode blocks. The blocks are overlapped, and the scan electrodes are driven such that the number of overlapped scan electrodes of the scan electrode blocks of some of the q scan electrode blocks is different from the number of overlapped scan electrodes of the remaining scan electrode blocks.

For example, if the total number of scan electrode blocks is 100 (= p) and the number of overlapping scan electrode blocks is 50 (= q), the number of overlapping scan electrodes in the 45 scan electrode blocks is the same. The number of scan electrodes overlapping in five scan electrode blocks is different. In addition, each of the q scan electrode blocks may overlap a scan electrode block positioned after each of the q scan electrode blocks with a different number of scan electrodes.

At this time, the number of overlapping scan electrodes is one or more. In addition, the number of overlapping scan electrodes is preferably less than half of the total number of scan electrodes of the scan electrode block to which the overlapping scan electrodes belong.

The data electrode driver 220 performs an addressing process by applying a data pulse through the data electrodes X1 to Xm when the scan electrode driver 215 applies a scan pulse through the scan electrode blocks B1 to Bp.

The sustain electrode driver 230 maintains the discharge of the selected cells in the addressing period by applying the sustain pulse through the sustain electrodes Z1 to Zn alternately with the sustain pulse applied by the scan electrode driver 215 in the sustain period.

As described above, the plasma display apparatus according to the first exemplary embodiment of the present invention superimposes and drives a different number of scan electrodes constituting any number of scan electrode blocks. Significant display at the boundary of the block display areas BD1, BD2, ..., BDp can be reduced.

Next, a driving method of the plasma display device according to the first embodiment of the present invention will be described in detail with reference to FIG. 5.

The scan electrode driver 215 applies a reset pulse through the scan electrodes Y1 to Yn in the reset period to make the amount of charge inside the cell uniform.

Thereafter, the scan electrode driver 215 applies a scan pulse for selecting a cell to be turned on. The scan electrode driver 215 sequentially applies scan pulses to scan electrodes of the same order that constitute each scan electrode block B1 to Bp. In addition, the data electrode driver 220 applies a data pulse to the data electrodes X1 to Xm when the scan electrode driver 215 applies a scan pulse to each of the scan electrode blocks B1 to Bp.

In this case, the scan electrode driver 215 overlaps each of the q scan electrode blocks and the scan electrode blocks located after each of the q scan electrode blocks among the p scan electrode blocks, and scan electrodes of a portion of the q scan electrode blocks. The scan electrodes are driven such that the number of overlapped scan electrodes of the blocks differs from the number of overlapped scan electrodes of the remaining scan electrode blocks. In addition, each of the q scan electrode blocks may overlap a scan electrode block positioned after each of the q scan electrode blocks with a different number of scan electrodes.

For example, the first scan electrodes Y1, Y2, Y4, Y7, ..., Y (n-2) in which the scan electrode driver 215 constitutes each scan electrode block B1, B2, B3, B4, ..., Bp. Scan pulses are sequentially applied to)). Next, the second scan electrodes Y2, Y3, Y5, Y8, ..., Y (n-1) in which the scan electrode driver 215 constitutes each scan electrode block B1, B2, B3, B4, ..., Bp. ) Sequentially apply scan pulses. Finally, the scan electrode driver 215 applies scan pulses to the third scan electrodes Y3, Y4, Y6, Y9, ..., Yn constituting each scan electrode block B1, B2, B3, B4, ..., Bp. Apply sequentially. When the scanning process is performed as described above, two scan electrodes overlapping with each other in the first scan electrode block B1 are Y2 and Y3. In addition, one scan electrode overlaps with the second scan electrode block B2 and the scan electrode block located thereafter. In addition, there is no scan electrode overlapping the third scan electrode block B3 and the scan electrode block located thereafter.

As in the above example, the first embodiment of the present invention overlaps the scan electrode block of a part of the entire scan electrode block, and the scan electrode blocks having different numbers of overlapping scan electrodes exist.

<Example 2>

6 is a configuration diagram of a plasma display device according to a second embodiment of the present invention.

The plasma display panel 100 is divided into p scan electrodes blocks B1 to Bp (p is a natural number of two or more), scan electrodes Y1 to Yn to which scan pulses and sustain pulses are applied, and data electrodes to which data pulses are applied. (X1 to Xm) and the sustain electrodes Z1 to Zn to which a sustain pulse is applied. The number of scan electrodes included in each scan electrode block B1, B2, ..., Bp may be different. In addition, the number of scan electrodes included in each scan electrode block B1, B2, ..., Bp is more preferably the same. In addition, the number of scan electrodes included in the scan electrode blocks of a part of the entire scan electrode blocks may be different from the number of scan electrodes included in the remaining scan electrode blocks.

In the addressing period, the scan electrode driver 215 scans each of q scan electrode blocks (q is a natural number of p or less) among the p scan electrode blocks B1 to Bp and a scan electrode positioned after each of the q scan electrode blocks. The scan electrodes are driven such that the blocks overlap by the same number of scan electrodes.

For example, if the total number of scan electrode blocks is 100 (= p) and the number of overlapping scan electrode blocks is 50 (= q), each of the 50 scan electrode blocks and the scan electrode blocks located thereafter are overlapped. The number of scan electrodes is the same. At this time, the number of overlapping scan electrodes is one or more. In addition, the number of overlapping scan electrodes is preferably less than half of the total number of scan electrodes of the scan electrode block to which the overlapped scan electrodes belong.

The data electrode driver 220 performs an addressing process by applying a data pulse through the data electrodes X1 to Xm when the scan electrode driver 215 applies a scan pulse through the scan electrode blocks B1 to Bp.

The sustain electrode driver 230 maintains the discharge of the selected cells in the addressing period by applying the sustain pulse through the sustain electrodes Z1 to Zn alternately with the sustain pulse applied by the scan electrode driver 215 in the sustain period.

The second embodiment differs from the first embodiment in that the second embodiment has the same number of overlapping scan electrodes for each scan electrode block, whereas the first embodiment has a different number of overlapping scan electrodes. The block exists.

As described above, the plasma display apparatus according to the second exemplary embodiment of the present invention superimposes and drives the same number of scan electrodes constituting any number of scan electrode blocks in the conventional plasma display apparatus shown in FIG. 2. Significant display at the boundary of the block display areas BD1, BD2, ..., BDp can be reduced.

Next, a driving method of the plasma display device according to the second embodiment of the present invention will be described in detail with reference to FIG. 6.

The scan electrode driver 215 applies a reset pulse through the scan electrodes Y1 to Yn in the reset period to make the amount of charge inside the cell uniform.

The scan electrode driver 215 then applies a scan pulse to select a cell to be turned on. The scan electrode driver 215 sequentially applies scan pulses to scan electrodes of the same order that constitute each scan electrode block B1 to Bp. In addition, the data electrode driver 220 applies a data pulse to the data electrodes X1 to Xm when the scan electrode driver 215 applies a scan pulse to each of the scan electrode blocks B1 to Bp.

In this case, the scan electrode driver 215 may include q scan electrode blocks (q is a natural number of p or less) among the p scan electrode blocks B1 to Bp and a scan electrode block positioned after each of the q scan electrode blocks. The same number of scan electrodes are overlapped.

For example, the first scan electrodes Y1, Y3, Y5, Y8, ..., Y (n-2) in which the scan electrode driver 215 constitutes each scan electrode block B1, B2, B3, B4, ..., Bp. Scan pulses are sequentially applied to)). Next, the second scan electrodes Y2, Y4, Y6, Y9, ..., Y (n-1) in which the scan electrode driver 215 constitutes each scan electrode block B1, B2, B3, B4, ..., Bp. ) Sequentially apply scan pulses. Finally, the scan electrode driver 215 applies a scan pulse to the third scan electrodes Y3, Y5, Y7, Y10, ..., Yn constituting each scan electrode block B1, B2, B3, B4, ..., Bp. Apply sequentially. When the scan process is performed as described above, one scan electrode overlaps with the first scan electrode block B1. In addition, one scan electrode overlapping the second scan electrode block B2 and the scan electrode block positioned thereafter is Y5. In addition, there is no scan electrode overlapping the third scan electrode block B3 and the scan electrode block located thereafter.

As in the above example, the second embodiment of the present invention overlaps the scan electrode blocks of a part of the entire scan electrode blocks, and the number of scan electrodes overlapping is the same.

<Example 3>

7 is a configuration diagram of a plasma display device according to a third embodiment of the present invention.

The plasma display panel 100 is divided into p scan electrodes blocks B1 to Bp (p is a natural number of two or more), scan electrodes Y1 to Yn to which scan pulses and sustain pulses are applied, and data electrodes to which data pulses are applied. (X1 to Xm) and the sustain electrodes Z1 to Zn to which a sustain pulse is applied. The number of scan electrodes included in each scan electrode block B1, B2, ..., Bp may be different. In addition, the number of scan electrodes included in each scan electrode block B1, B2, ..., Bp is more preferably the same. In addition, the number of scan electrodes included in the scan electrode blocks of a part of the entire scan electrode blocks may be different from the number of scan electrodes included in the remaining scan electrode blocks.

The scan electrode driver 215 allows the scan electrode blocks positioned after the entire p scan electrode blocks B1, B2, ..., Bp to overlap with any number of scan electrodes in the addressing period, and the total p scan electrodes The scan electrodes are driven such that the number of overlapping scan electrodes of the scan electrode blocks of some of the blocks B1 to Bp is different from the number of overlapping scan electrodes of the remaining scan electrode blocks. At this time, the number of overlapping scan electrodes is one or more. The number of overlapping scan electrodes is less than half of the total number of scan electrodes of the scan electrode block to which the overlapping scan electrodes belong.

For example, in the case of overlapping in all 100 scan electrode blocks, if the number of scan electrodes overlapping in 95 scan electrode blocks is the same, the number of scan electrodes overlapping in the remaining 5 scan electrode blocks is can be different. In addition, each of the p scan electrode blocks may overlap a scan electrode block positioned after each of the p scan electrode blocks with a different number of scan electrodes.

The data electrode driver 220 performs an addressing process by applying a data pulse through the data electrodes X1 to Xm when the scan electrode driver 215 applies a scan pulse through the scan electrode blocks B1 to Bp.

The sustain electrode driver 230 maintains the discharge of the selected cells in the addressing period by applying the sustain pulse through the sustain electrodes Z1 to Zn alternately with the sustain pulse applied by the scan electrode driver 215 in the sustain period.

The third embodiment differs from the second embodiment in that the third embodiment is overlapped in all scan electrode blocks, and the number of overlapped scan electrodes may be different, whereas the second embodiment is overlapped in the partial scan electrode block. This happens and the number of overlapping scan electrodes is the same.

Next, a driving method of the plasma display device according to the third embodiment of the present invention will be described in detail with reference to FIG. 7.

The scan electrode driver 215 applies a reset pulse through the scan electrodes Y1 to Yn in the reset period to make the amount of charge inside the cell uniform.

The scan electrode driver 215 then applies a scan pulse to select a cell to be turned on. The scan electrode driver 215 sequentially applies scan pulses to scan electrodes of the same order that constitute each scan electrode block B1 to Bp. In addition, the data electrode driver 220 applies a data pulse to the data electrodes X1 to Xm when the scan electrode driver 215 applies a scan pulse to each of the scan electrode blocks B1 to Bp.

In this case, the scan electrode driver 215 allows the scan electrode blocks positioned after the entire p scan electrode blocks B1, B2, ..., Bp to overlap with any number of scan electrodes in the addressing period. The scan electrodes are driven such that the number of overlapping scan electrodes of the scan electrode blocks of some of the scan electrode blocks B1 to Bp is different from the number of overlapping scan electrodes of the remaining scan electrode blocks. In addition, each of the p scan electrode blocks may overlap a scan electrode block positioned after each of the p scan electrode blocks with a different number of scan electrodes.

For example, the first scan electrodes Y1, Y2, Y4, Y6, ..., Y (n-2) in which the scan electrode driver 215 constitutes each scan electrode block B1, B2, B3, B4, ..., Bp. Scan pulses are sequentially applied to)). Next, the second scan electrodes Y2, Y3, Y5, Y7, ..., Y (n-1), in which the scan electrode driver 215 constitutes each scan electrode block B1, B2, B3, B4, ..., Bp. ) Sequentially apply scan pulses. Finally, the scan electrode driver 215 applies a scan pulse to the third scan electrodes Y3, Y4, Y6, Y8, ..., Yn constituting each scan electrode block B1, B2, B3, B4, ..., Bp. Apply sequentially. When the scanning process is performed as described above, two scan electrodes overlapping with each other in the first scan electrode block B1 are Y2 and Y3. In addition, one scan electrode overlaps with the second scan electrode block B2 and the scan electrode block located thereafter. In addition, one scan electrode overlapping the third scan electrode block B3 and the scan electrode block positioned thereafter is Y6.

As described above, the plasma display apparatus according to the third embodiment of the present invention overlaps the entire scan electrode block, and the number of the scan electrodes overlapping is different in the conventional plasma display apparatus shown in FIG. 2. The prominent display at the boundary of each block display area BD1, BD2, ..., BDp can be reduced.

<Example 4>

8 is a configuration diagram of a plasma display device according to a fourth embodiment of the present invention.

The plasma display panel 100 is divided into p scan electrodes blocks B1 to Bp (p is a natural number of two or more), scan electrodes Y1 to Yn to which scan pulses and sustain pulses are applied, and data electrodes to which data pulses are applied. (X1 to Xm) and the sustain electrodes Z1 to Zn to which a sustain pulse is applied. The number of scan electrodes included in each scan electrode block B1, B2, ..., Bp may be different. In addition, it is more preferable that the number of scan electrodes included in each scan electrode block B1, B2, ..., Bp is the same. Also, the number of scan electrodes included in a part of the scan electrode blocks of the entire scan electrode block and the remaining scans are the same. The number of scan electrodes included in the electrode block may be different.

The scan electrode driver 215 drives the scan electrodes such that the scan electrode blocks positioned after the entire p scan electrode blocks B1, B2, ..., Bp overlap each other by the same number of scan electrodes in the addressing period. In this case, the number of scan electrodes in which one scan electrode block and an adjacent scan electrode block overlap is preferably 1 or more. For example, when overlapping is performed in all 100 scan electrode blocks, the number of scan electrodes overlapping in 100 scan electrode blocks is the same.

The data electrode driver 220 performs an addressing process by applying a data pulse through the data electrodes X1 to Xm when the scan electrode driver 215 applies a scan pulse through the scan electrode blocks B1 to Bp.

The sustain electrode driver 230 maintains the discharge of the selected cells in the addressing period by applying the sustain pulse through the sustain electrodes Z1 to Zn alternately with the sustain pulse applied by the scan electrode driver 215 in the sustain period.

The fourth embodiment differs from the third embodiment in that the fourth embodiment has overlapping in all scan electrode blocks and the same number of overlapping scan electrodes is the same, while the third embodiment has overlapping and overlapping in all scan electrode blocks. The number of scan electrodes may vary.

Next, a driving method of the plasma display device according to the fourth embodiment of the present invention will be described in detail with reference to FIG. 8.

The scan electrode driver 215 applies a reset pulse through the scan electrodes Y1 to Yn in the reset period to make the amount of charge inside the cell uniform.

The scan electrode driver 215 then applies a scan pulse to select a cell to be turned on. The scan electrode driver 215 sequentially applies scan pulses to scan electrodes of the same order that constitute each scan electrode block B1 to Bp. In addition, the data electrode driver 220 applies a data pulse to the data electrodes X1 to Xm when the scan electrode driver 215 applies a scan pulse to each of the scan electrode blocks B1 to Bp.

In this case, the scan electrode driver 215 allows the scan electrode blocks positioned after each of the p scan electrode blocks B1 to Bp to overlap each other with the same number of scan electrodes.

For example, the first scan electrodes Y1, Y3, Y5, Y7, ..., Y (n-2) in which the scan electrode driver 215 constitutes each scan electrode block B1, B2, B3, B4, ..., Bp. Scan pulses are sequentially applied to)). Next, second scan electrodes Y2, Y4, Y6, Y8,..., Y (n-1) in which the scan electrode driver 215 constitutes each scan electrode block B1, B2, B3, B4, ..., Bp. ) Sequentially apply scan pulses. Finally, the scan electrode driver 215 applies a scan pulse to the third scan electrodes Y3, Y5, Y7, Y9, ..., Yn constituting each scan electrode block B1, B2, B3, B4, ..., Bp. Apply sequentially. When the scan process is performed as described above, one scan electrode overlaps with the first scan electrode block B1. In addition, one scan electrode overlapping the second scan electrode block B2 and the scan electrode block positioned thereafter is Y5. In addition, one scan electrode overlaps with the third scan electrode block B3 and the scan electrode block located thereafter.

As described above, the plasma display apparatus according to the fourth embodiment of the present invention superimposes and drives the same number of scan electrodes among the scan electrodes constituting each scan electrode block, so that each block display area of the conventional plasma display apparatus shown in FIG. Significant display at the boundary of (BD1, BD2, ..., BDp) can be reduced.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. will be. Therefore, the above-described embodiments are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the appended claims rather than the detailed description, and the meaning and scope of the claims and All changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

According to the present invention, the boundary between the scan electrode block and the adjacent scan electrode block can be reduced by overlapping the scan electrodes in the process of scanning the scan electrode block and the adjacent scan electrode block.

Claims (22)

a plasma display panel divided into p scan electrode blocks (p is a natural number of two or more) and including a scan electrode to which a scan pulse is applied and a data electrode to which a data pulse is applied; And Scan electrodes for driving the scan electrodes such that each of the q scan electrode blocks (q is a natural number of p or less) and the scan electrode blocks positioned after each of the q scan electrode blocks overlap each other in the addressing period. Driving part Plasma display device comprising a. The method of claim 1, The number of scan electrodes included in each scan electrode block is different from each other. The method of claim 1, And the number of scan electrodes included in each scan electrode block is the same. The method of claim 1, And the number of scan electrodes included in the scan electrode blocks of a portion of the p scan electrode blocks is different from the number of scan electrodes included in the remaining scan electrode blocks. The method of claim 1, The scan electrode driver, Q of the p scan electrode blocks (q is a natural number equal to or less than p) and a scan electrode block positioned after each of the q scan electrode blocks overlap each other, and a portion of the q scan electrode blocks And driving the scan electrodes such that the number of overlapped scan electrodes of the scan electrode block is different from the number of overlapped scan electrodes of the remaining scan electrode blocks. The method of claim 5, The scan electrode driver, And driving the scan electrodes such that each of the q scan electrode blocks overlaps a different number of scan electrodes with a scan electrode block positioned after each of the q scan electrode blocks. The method of claim 1, The scan electrode driver, A scan electrode is disposed such that each of the q scan electrode blocks (q is a natural number of p or less) and the scan electrode blocks positioned after each of the q scan electrode blocks overlap each other by the same number of scan electrodes. And a plasma display device. The method of claim 1, The scan electrode driver, The scan electrode blocks adjacent to each of the p scan electrode blocks overlap each other, and the number of overlapping scan electrodes of the scan electrode blocks of a portion of the p scan electrode blocks is different from the number of overlapping scan electrodes of the remaining scan electrode blocks. And driving the scan electrode so as to drive the scan electrode. The method of claim 8, The scan electrode driver, And driving the scan electrodes such that each of the p scan electrode blocks overlaps a different number of scan electrodes with a scan electrode block positioned after each of the p scan electrode blocks. The method of claim 1, The scan electrode driver, And driving the scan electrodes such that each of the p scan electrode blocks and the scan electrode blocks positioned after each of the p scan blocks overlap each other by the same number of scan electrodes in an addressing period. The method according to any one of claims 1 to 10, Wherein the number of overlapping scan electrodes is one or more, and less than half of the total number of scan electrodes constituting the scan electrode block to which the overlapping scan electrodes belong. In a driving method of a plasma display device including a scan electrode and a data electrode divided into p scan electrode blocks (p is a natural number of two or more), Scanning each of the q number of scan electrode blocks (q is a natural number of p or less) and a scan electrode block positioned after each of the q number of scan electrode blocks to overlap each other in an addressing period; And Driving the data electrode when the scan electrode block is scanned in the addressing period Method of driving a plasma display device comprising a. The method of claim 12, The number of scan electrodes included in each scan electrode block is different from each other. The method of claim 12, And the number of scan electrodes included in each scan electrode block is the same. The method of claim 12, And the number of scan electrodes included in the scan electrode blocks of a portion of the p scan electrode blocks is different from the number of scan electrodes included in the remaining scan electrode blocks. The method of claim 12, Each of the q scan electrode blocks (q is a natural number of p or less) of the p scan electrode blocks and the scan electrode blocks positioned after each of the q scan electrode blocks overlap each other. And driving the scan electrodes such that the number of overlapping scan electrodes of the scan electrode blocks of the q scan electrode blocks is different from the number of overlapping scan electrodes of the remaining scan electrode blocks. . The method of claim 16, And driving the scan electrodes such that each of the q scan electrode blocks overlaps a different number of scan electrodes with a scan electrode block positioned after each of the q scan electrode blocks. The method of claim 12, The scan electrodes are driven such that each of the q scan electrode blocks (q is a natural number of p or less) and the scan electrode blocks positioned after each of the q scan electrode blocks overlap each other by the same number of scan electrodes. A driving method of a plasma display device, characterized in that. The method of claim 12, The scan electrode blocks adjacent to each of the p scan electrode blocks overlap each other, And driving the scan electrodes such that the number of overlapping scan electrodes of the scan electrode blocks of some of the p scan electrode blocks is different from the number of overlapping scan electrodes of the remaining scan electrode blocks. . The method of claim 19, And driving the scan electrodes such that each of the p scan electrode blocks overlaps a different number of scan electrodes with a scan electrode block located after each of the p scan electrode blocks. The method of claim 12, And driving the scan electrodes such that each of the p scan electrode blocks and the scan electrode blocks located after each of the p scan blocks overlap each other by the same number of scan electrodes in the addressing period. . The method according to any one of claims 12 to 21, And the number of overlapping scan electrodes is one or more, and less than half of the total number of scan electrodes constituting the scan electrode block to which the overlapping scan electrodes belong.

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