KR101016670B1 - Driving method of plasma display panel and plasma display device - Google Patents

Abstract

In the method of driving a plasma display panel according to the present invention, a plurality of first electrodes are divided into a plurality of groups including a first group and a second group, and a plurality of subfields are included in a plurality of groups including a first group and a second group. Divide into groups In the subfields of the first group, the plurality of first electrodes included in the first group are addressed, the discharge cells addressed in the first group are sustained and discharged, and then the plurality of first electrodes included in the second group Addressing is performed and sustain discharge is performed on the discharge cells addressed in the first and second groups. In the subfield of the second group, addressing is first performed on the plurality of first electrodes included in the second group and sustain discharge of the discharge cells addressed in the second group, followed by the plurality of first electrodes included in the first group. Addressing is performed and sustain discharge is performed on the discharge cells addressed in the first and second groups. By changing the addressing order of each subfield as described above, address discharge in a late addressed cell can be more stably generated.

PDP, electrode, discharge cell, group, address discharge, addressing order, subfield

Description

Driving method of plasma display panel and plasma display device {DRIVING METHOD OF PLASMA DISPLAY PANEL AND PLASMA DISPLAY DEVICE}

1 is a view illustrating an ADS driving method of a conventional plasma display panel.

2 is a partial perspective view of a plasma display panel according to an exemplary embodiment of the present invention.

3 is a diagram illustrating an electrode array of a plasma display panel according to an exemplary embodiment of the present invention.

4 is a diagram illustrating a plasma display panel according to an exemplary embodiment of the present invention.

5 is a diagram illustrating a method of driving a plasma display panel according to a first embodiment of the present invention.

6 is a driving waveform diagram of a plasma display panel according to a first exemplary embodiment of the present invention.

7 is a driving waveform diagram of a plasma display panel according to a second exemplary embodiment of the present invention.

The present invention relates to a method of driving a plasma display panel (PDP) and a plasma display device.

Among the flat panel display devices, plasma display panels have been in the spotlight as flat panel display devices due to their high brightness, high luminous efficiency, and wide viewing angles.

A plasma display panel is a flat display device that displays characters or images by using plasma generated by gas discharge, and tens to millions or more of pixels are arranged in a matrix form according to their size.

In general, a plasma display panel uses an address display separation (ADS) driving method. This approach is disclosed in US Pat. No. 5,541,618.

1 is a view illustrating an ADS driving method of a conventional plasma display panel.

As shown in FIG. 1, the plasma display panel performs time division driving by dividing one frame into a plurality of subfields to express gray scales. In FIG. 1, one frame is divided into eight subfields. Each subfield SF1-SF8 includes a reset period (not shown), an address period A1-A8, and a sustain period S1-S8. The reset period serves to erase the wall charges formed by the previous sustain discharge and to set up the wall charges in order to stably perform the next address discharge. The address periods A1-A8 are periods in which wall charges are accumulated in cells (addressed cells) that are turned on by selecting cells that are turned on and cells that are not turned on in the panel. The sustain periods S1-S8 are periods in which sustain discharge is performed to actually display an image in the addressed cells. The ratio of the light emission periods 1T, 2T, 3T, ..., 128T in each subfield is 1: 2: 4. : 8: 16: 32: 64: 128

According to this ADS driving method, the reset period, the address periods A1-A8 and the sustain periods S1-S8 of each subfield SF1-SF8 are separated in time in a unit frame so that the address periods A1-A8 are separated. In this step, after the address operation from the first scan electrode to the last scan electrode is completed, the sustain operation in the sustain periods S1-S8 is performed. Therefore, as the number of scan electrode lines increases, the time period occupied by the address period for each subfield becomes longer, and the sustain period becomes shorter, resulting in a decrease in the brightness of the screen. Significant time difference occurs until there is a problem that the sustain discharge operation may become unstable.

The technical problem to be solved by the present invention is to solve the above problems, a method of driving a plasma display panel and a plasma for generating a stable sustain discharge by minimizing the time difference generated until the sustain discharge occurs in the addressed cells It is to provide a display device.

According to an aspect of the present invention, a frame is formed in a plasma display panel including a plurality of first electrodes, a plurality of second electrodes, and a plurality of third electrodes formed in a direction crossing the first electrode and the second electrode. A method of driving by dividing into a plurality of subfields is provided. The driving method includes dividing the plurality of first electrodes into a plurality of groups including a first group and a second group, dividing the plurality of subfields into a plurality of groups including a first group and a second group, In the subfields of the first group, a first step of performing addressing on the plurality of first electrodes included in the first group, a second step of sustaining and discharging the discharge cells addressed in the first group, and the second step A third step of performing addressing on the plurality of first electrodes included in the second group, and a fourth step of performing sustain discharge on the discharge cells addressed in the first and second groups,

In a subfield of the second group, a fifth step of addressing a plurality of first electrodes included in the second group, a sixth step of sustaining and discharging the discharge cells addressed in the second group, and the fifth step And a seventh step of performing addressing on the plurality of first electrodes included in the first group, and an eighth step of performing sustain discharge on the discharge cells addressed in the second and first groups.

In the subfield of the first group, the scan electrodes of the second group have a rest period when addressing and sustain discharge are performed on the scan electrodes of the first group, and in the subfield of the second group, When performing addressing and sustain discharge for two groups of scan electrodes, the first group of scan electrodes have a rest period.

The method may further include selectively performing additional sustain discharge on the discharge cells addressed in the first group and the second group after the fourth and eighth steps in the subfields of the first group and the second group, respectively. It may include.

According to another aspect of the present invention, a plasma display panel in which discharge cells are formed between a first electrode, a second electrode, and one frame displayed on the plasma display panel are divided into a plurality of subfields, respectively. A plasma display device including a driving circuit for applying a driving voltage to a second electrode is provided. In this case, the driving circuit divides the plurality of first electrodes into a plurality of groups including a first group and a second group, and divides the plurality of subfields into a plurality of groups including a first group and a second group. In the subfield of the first group, after addressing the plurality of first electrodes included in the first group and sustaining discharge the addressed discharge cells in the first group, Addressing the plurality of first electrodes included and sustaining / discharging discharge cells addressed in the second group, and in a subfield of the second group, for a plurality of first electrodes included in the second group After performing addressing and sustain discharge of the discharge cells addressed in the second group, addressing is performed on a plurality of first electrodes included in the first group and discharges addressed in the first group. Discharge the cell.

A method of driving a plasma display panel and a plasma display device according to an exemplary embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

First, with reference to the accompanying drawings will be described in detail to be easily carried out by those of ordinary skill in the art with respect to embodiments of the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In describing the present invention, when it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description is omitted. Like parts are designated by like reference numerals throughout the specification.

First, a structure of a plasma display panel according to an exemplary embodiment of the present invention will be described with reference to FIGS. 2 to 4.

2 is a partial perspective view of a plasma display device according to an exemplary embodiment of the present invention, and FIG. 3 is a diagram illustrating an electrode arrangement of the plasma display device according to an exemplary embodiment of the present invention. 4 is a schematic conceptual diagram of a plasma display device according to an embodiment of the present invention.

As shown in FIG. 2, the plasma display device includes two glass substrates 1 and 6 facing away from each other. On the glass substrate 1, the scan electrode 4 and the sustain electrode 5 are formed in pairs and in parallel, and the scan electrode 4 and the sustain electrode 5 are covered with the dielectric layer 2 and the protective film 3. have. A plurality of address electrodes 8 are formed on the glass substrate 6, and the address electrodes 8 are covered with the insulator layer 7. The address electrode 8 and the partition 9 are formed on the insulator layer 7 between the address electrodes 8. In addition, the phosphor 10 is formed on the surface of the insulator layer 7 and on both sides of the partition wall 9. The glass substrates 1 and 6 are disposed to face each other with the discharge space 11 therebetween so that the scan electrode 4, the address electrode 8, the sustain electrode 5, and the address electrode 8 are orthogonal to each other. The discharge space 11 at the intersection of the address electrode 8 and the paired scan electrode 4 and the sustain electrode 5 forms a discharge cell 12.

As shown in FIG. 3, the electrode of the plasma display device has a matrix structure of n × m. The plurality of address electrodes A1-Am are arranged in the vertical direction, and the plurality of scan electrodes Y1-Yn and the sustain electrodes X1-Xn are arranged in pairs in the horizontal direction.

Next, as shown in FIG. 4, the plasma display device according to the exemplary embodiment of the present invention includes a plasma display panel 100, a controller 200, an address driver 300, a sustain electrode driver 400, and a scan electrode driver 500. It includes.

The plasma display panel 100 includes a plurality of address electrodes A1 to Am arranged in a column direction, a plurality of sustain electrodes X1 to Xn arranged in a row direction, and a scan electrode Y1 to Yn.

The controller 200 receives an image signal from the outside and outputs an address driving control signal, a sustain electrode X driving control signal, and a scan electrode Y driving control signal. The controller 200 divides and drives one frame into a plurality of subfields, and each subfield is represented by a reset period, an address period, and a sustain period.

The address driver 300 receives an address driving control signal from the controller 200 and applies a display data signal for selecting a discharge cell to be displayed to each address electrode.

The sustain electrode driver 400 receives the sustain electrode X driving control signal from the controller 200 and applies a driving voltage to the sustain electrode X.

The scan electrode driver 500 receives the scan electrode Y driving control signal from the controller 200 and applies a driving voltage to the scan electrode Y. In this case, the scan electrode driver 500 according to an exemplary embodiment of the present invention includes a plurality of driving circuits for driving the plurality of scan electrodes into a plurality of groups and driving the scan electrodes belonging to each group.

Hereinafter, a driving method and driving waveforms of the plasma display panel according to the first embodiment of the present invention will be described in detail with reference to FIGS. 5 and 6.

5 is a diagram illustrating a method of driving a plasma display panel according to a first embodiment of the present invention, and FIG. 6 is a diagram of a driving waveform according to a method of driving a plasma display panel according to a first embodiment of the present invention. In FIG. 6, a plurality of scan electrode groups are divided into two groups G1 and G2 in the scanning order, the first scan electrode group G1 is represented as a first group, and the second scan electrode group G2 is represented as a second group. Expressed as

First, referring to FIG. 5, in the driving method according to the first exemplary embodiment of the present invention, one frame is driven by dividing a plurality of subfields, and each subfield is a reset period, an address / hold mixing period (T1), and a luminance correction period. (T2) and common sustain period T3. In addition, a plurality of groups are divided based on the scan electrode lines Y1-Yn, and each group is driven in the ADS method as described with reference to FIG. 1 to express gray levels by a combination of a plurality of subfields.

The reset period applies a reset waveform to the scan electrode lines Y1-Yn of all groups to erase wall charges formed by previous sustain discharges and to set up wall charges to stably perform the next address discharge. Do it. The address / sustain mixing period T1 includes an address period A and a sustain period S, and sequentially addresses all the pixels of each group and performs sustain discharge in the middle of the address. That is, the address period / sustain mixing period T1 is a period in which the address period A and the sustain period S are mixed in time. The luminance correction period T2 is a period during which additional sustain discharge is selectively performed to correct all luminance of the pixels of the panel so that the gradations of all the pixels of the panel match each other. The common sustain period T3 is a period in which sustain discharge is commonly performed for a predetermined period of time for all the pixels.

Specifically, in the reset period, reset discharge is performed by simultaneously performing the reset operation on all the scan electrodes of the group. On the other hand, unlike shown in Fig. 5, in the reset period, without performing the reset operation on all the scan electrodes of all groups simultaneously, a reset period is provided before the address period A in the address period / sustain mixing period T1 for each group. The reset operation can be performed separately.

In the next address / sustain mixing period T1, an address operation is performed on each scan electrode in the first group G1, and then a sustain discharge pulse is applied to the scan electrodes of the group G1. Then, an address operation is performed on each scan electrode in the second group G2, and then a sustain discharge pulse is applied to the scan electrodes of the group G2 and the previously addressed group G1. do. That is, while the sustain discharge is performed with respect to any one group of pixels, the sustain discharge is also performed with respect to the pixels of another group previously addressed, and the addressing and sustain discharge are performed with respect to each scan electrode of the first group G1. When performing, each scan electrode of the second group G2 has a rest period.

After the sustain discharge is performed on the scan electrodes of the last group Gn in this manner, the luminance correction period T2 starts.

Subsequently, in the luminance correction period T2, since the length of the sustain period for each group is different in the address / sustain mixing period T1, an additional sustain period is selectively provided for each group so that all the pixels have the same luminance. Next, the luminance of the pixels of each group is corrected. Specifically, the luminance of the pixels of the first group G1 is determined by the sum of the respective weights in the sustain period S11 of the address / sustain mixing period T1, and the pixels of the first group G1 are It has the highest luminance at the beginning of the luminance correction period T3. In order for the pixels of other groups to have the luminance of the pixels of the first group G1, the sustain discharge is additionally performed for a sustain period. In this way, all the pixels of the panel have the same luminance.

In the next common sustain period T3, sustain discharge is performed by applying a sustain discharge pulse to the scan electrodes Y of all groups in common. In this way, it is possible to have a gradation degree assigned to each subfield. If the gray level assigned to the subfield is satisfied after the luminance correction period T2, the common sustain period T2 may be omitted.

When the sustain discharge in the common sustain period T3 ends, the reset period of the next subfield starts again.

In Fig. 5, the luminance / correction period T2 is placed after the address / sustain mixing period T1 and the sustaining period T3 is next, but the sustaining period T3 is placed after the address / sustain mixing period T1. The luminance correction period T2 may then be placed.

6, each subfield in the driving waveform according to the first embodiment of the present invention, as described above, the reset period, the address / sustain mixing period T1, the luminance correction period T2, and the common sustain period T3. ). In the plasma display panel, a scan / hold driving circuit for applying a driving voltage to the scan electrode Y and the sustain electrode Y and an address driving circuit for applying a driving voltage to the address electrode A are connected in each period. Achieves the display device.

In the following, detailed description of the driving waveform of the reset period is omitted, and the address / sustain mixing period T1, the luminance correction period T2, and the common sustain period T3 will be described in detail.

In the reset period, a reset waveform is applied to the scan electrodes of the first and second groups to cause reset discharge.

Subsequently, with respect to the scan electrodes of the first group Yg1, in the address period AG1 of the address / sustain mixing period T1, the scan electrodes Y are sequentially disposed while the other scan electrode Y is maintained at the VscH voltage. By VscL The scan electrode Y is selected by applying a voltage. And although not shown in Figure 6 VscL The address voltage is applied to the address electrode A which forms the discharge cell to be selected among the discharge cells formed by the scan electrode Y to which the voltage is applied. Then, the address discharge is caused by the difference between the address voltage applied to the address electrode A and the voltage VscL applied to the scan electrode Y and the wall voltage caused by the wall charges formed on the address electrode A and the scan electrode Y. This happens.

In the sustain period S11 of the address / sustain mixing period T1, a sustain discharge pulse is alternately applied to the scan electrode Y and the sustain electrode X which form the addressed discharge cell. In FIG. 6, one sustain discharge pulse is applied to the scan electrode Y and the sustain electrode X, respectively. The sustain discharge pulse is a pulse that causes the voltage difference between the scan electrode Y and the sustain electrode X to alternately become a Vs voltage and a -Vs voltage, and the Vs voltage is discharged between the scan electrode Y and the sustain electrode X. It is a voltage lower than the discharge start voltage which can cause When the wall voltage is formed between the scan electrode Y and the sustain electrode X by the address discharge in the address period AG1, the scan electrode Y and the sustain electrode X are formed by the wall voltage and the Vs voltage. A total of two maintenance discharges occurred at. In addition, while the sustain discharge pulse is applied to the scan electrodes of the second group Yg2 in the sustain period S11 of the address / sustain mixing period T1, the voltage difference applied to the scan electrode Y and the sustain electrode X is equal to the Vs voltage. This is because it is lower than the discharge start voltage between the scan electrode Y and the sustain electrode X, so that no discharge occurs.

As such, when the address period AG1 and the sustain period S11 of the address / sustain mixing period T1 are completed for the scan electrodes of the first group, the address / sustain mixing of the scan electrodes of the second group Yg2 is subsequently performed. The address period AG2 of the period T1 is performed.

For the scan electrodes of the second group Yg2, in the address period AG2 of the address / sustain mixing period T1, the scan electrodes Y are sequentially disposed while the other scan electrode Y is maintained at the VscH voltage. By VscL The scan electrode Y is selected by applying a voltage. And as explained earlier, VscL The address voltage is applied to the address electrode A which forms the discharge cell to be selected among the discharge cells formed by the scan electrode Y to which the voltage is applied. In the sustain periods S21 and S12 of the address / sustain mixing period T1, a sustain discharge pulse is applied to the scan electrode Y forming the discharge cells addressed in the first group Yg1 and the second group Yg2. Cause a maintenance discharge. That is, the sustain period S21 of the address / sustain mixing period T1 of the second group Yg2 and the second sustain period S12 of the address / sustain mixing period T1 of the first group Yg1 are performed simultaneously. do.

In the luminance correction period T2, an additional sustain period is provided for the discharge cells of the second group Yg2 in order to make all pixels have the same luminance. That is, in the luminance correction period T2, the sustain discharge pulse is applied to the sustain electrode X to prevent the discharge from occurring in the discharge cells of the first group Yg1 and to discharge only the discharge cells of the second group Yg2. Is applied to the scan electrode of the first group (Yg1) and a voltage Vs1 lower than the voltage Vs of the sustain discharge pulse is applied, and 0V is applied to the scan electrode of the second group (Yg2). At this time, the voltage Vs1 is a voltage that prevents discharge from occurring due to the difference between the voltage Vs1 and the voltage Vs applied to the sustain electrode Y and the wall voltage formed by the previous sustain discharge. Then, discharge does not occur in the discharge cells of the first group Yg1, but discharge occurs in the discharge cells of the second group Yg2. Then, 0 V is applied to the sustain electrode X, and a Vs voltage is applied to the scan electrodes of the first group Yg1 and the second group. As a result, the discharge still occurs in the discharge cells of the first group Yg1, and the discharge occurs in the discharge cells of the second group Yg2. In this way, a total of two sustain discharges are further performed in the discharge cells of the second group Yg2.                     

Next, in the common sustain period T3, sustain discharge pulses are alternately applied to the sustain electrodes X and the scan electrodes of the first and second groups Yg1 and Yg2, respectively, in order to control the first and second groups Yg1 and Yg2. All discharge discharges occur in the discharge cells.

As a result, in the subfield illustrated in FIG. 6, five sustain discharges are generated in the discharge cells of the first and second groups Yg1 and Yg2, so that all pixels of the panel may have the same luminance. The sustain discharge can be stably generated by causing the sustain discharge to occur immediately in the addressed cell.

On the other hand, the address discharge is determined by the density of the discharge priming particles and the wall voltage due to the wall charges formed in the discharge space. However, the discharge priming particles and the wall charges disappear over time. Therefore, the address discharge in the second group Yg2 which has a considerably long time until the address period is performed after the end of the reset period is the first group Yg1 having a relatively short time until the address period is performed after the end of the reset period. It is smaller or unstable than the address discharge at. However, after all of the subfields have completed the address period AG1 and the sustain period S11 of the first group Yg1 as shown in the driving waveforms of FIG. 6, the address period AG2 and the sustain period of the second group Yg2 ( When S12 and S21 are performed, the address discharge in the second group Yg2 of all the subfields is continuously unstable, so that the image quality of the plasma display panel including the scan electrode Y of the second group Yg2 is degraded. A problem occurs. Therefore, according to the exemplary embodiment of the present invention, if the driving waveform shown in FIG. 6 is applied to the scan electrode Y of the first subfield among the plurality of subfields, the driving shown in FIG. 7 is applied to the scan electrode Y of the second subfield adjacent thereto. Apply a waveform. Hereinafter, a driving waveform of the plasma display panel applied in the second subfield will be described in detail with reference to FIG. 7.

7 is a driving waveform diagram of a plasma display panel according to a second exemplary embodiment of the present invention.

As shown in FIG. 7, the driving waveform according to the second exemplary embodiment of the present invention performs sustain discharge after addressing the scan electrode Y belonging to the second group Yg2, and thereafter performs a first discharge. The driving waveforms are the same as the driving waveforms according to the first exemplary embodiment of the present invention except that addressing is performed on the scan electrodes Y belonging to the group Yg1 and then sustain discharge is performed.

As described above, the first subfield is addressed to the scan electrode Y belonging to the first group Yg1 before the scan electrode Y belonging to the second group Yg2 in the first subfield. In the next second subfield adjacent to the field, addressing is performed to the scan electrode Y belonging to the second group Yg2 before the scan electrode Y belonging to the first group Yg1. That is, in the first subfield, the scan electrode Y belonging to the second group Yg2 is in a state in which the discharge priming is largely extinct while a considerable time is required until the address / sustain mixing period Ag1 is performed after the reset period ends. . In this state, since addressing does not occur well for the scan electrode Y belonging to the second group Yg2, in the second subfield after the first subfield, for the scan electrode Y belonging to the second group Ag2. First, addressing is performed so that a more stable address discharge occurs to the scan electrode Y belonging to the second group Ag2.                     

In this way, if the driving waveform shown in FIG. 7 is applied to a predetermined subfield, the driving waveform shown in FIG. 6 is applied to the next subfield adjacent to the subfield. As described above, according to the present invention, driving waveforms as shown in FIGS. 6 and 7 are alternately applied to each subfield. In this way, the address discharge of the late addressed cells is further changed by changing the addressing order of each subfield so that the cells addressed later in the predetermined subfield are addressed first in the next subfield adjacent to the predetermined subfield. It can be stably caused.

6 and 7 divide the plurality of scan electrodes into a first group and a second group according to the order in which the scan voltages VscL are applied to the plurality of scan electrodes Y, the odd scan electrodes of the plurality of scan electrodes May be set to the first group and even scan electrodes may be set to the second group. As described above, even when the odd and even scan electrodes are divided into the first group and the second group, if the addressing is performed on the scan electrodes of the first group in the first subfield first, in the second subfield adjacent to the first subfield, Addressing is first performed on two groups of scan electrodes. In addition, when grouping the plurality of scan electrodes Y, scan electrodes spaced at regular intervals may be set to the same group, or scan electrodes may be set to the same group in any irregular manner.

6 and 7 alternately apply the driving waveforms of FIGS. 6 and 7 to each subfield. However, the driving waveforms of FIG. 6 are applied to the subfields of the predetermined group by subgrouping the subfields among the plurality of subfields. The driving waveform of FIG. 7 may be applied to the group. For example, after setting the odd subfields among the plurality of subfields to the first group and the even subfields to the second group, the driving waveform of FIG. 6 is applied to the subfields of the first group and the second group. Therefore, the driving waveform of FIG. 7 may be applied to the subfield.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

As described above, according to the present invention, a cell addressed late by changing the addressing order of each subfield to perform addressing first in a next subfield adjacent to a predetermined subfield with respect to a cell addressed late in a predetermined subfield. The address discharge can be generated more stably and the same image quality can be realized in the entire plasma display panel.

Claims (5)

In a plasma display panel including a plurality of first electrodes, a plurality of second electrodes, and a plurality of third electrodes formed in a direction crossing the first electrode and the second electrode, a frame is driven by dividing a frame into a plurality of subfields. In the method, Dividing the plurality of first electrodes into a plurality of groups including a first group and a second group, dividing the plurality of subfields into a plurality of groups including a first group and a second group, In the subfield of the first group, A first step of performing addressing on a plurality of first electrodes included in the first group, A second step of sustaining and discharging the discharge cells addressed in the first group, A third step of performing addressing on the plurality of first electrodes included in the second group, and A fourth step of performing sustain discharge on the discharge cells addressed in the first and second groups, In the subfield of the second group, A fifth step of performing addressing on the plurality of first electrodes included in the second group, A sixth step of sustaining and discharging the discharge cells addressed in the second group, A seventh step of performing addressing on the plurality of first electrodes included in the first group, and An eighth step of performing sustain discharge on the discharge cells addressed in the second and first groups; Method of driving a plasma display panel comprising a. The method of claim 1, The method of driving a plasma display panel in the subfields of the first group, the scan electrodes of the second group have a rest period when addressing and sustain discharge are performed on the scan electrodes of the first group. The method of claim 1, In the subfields of the second group, the scan electrodes of the first group have a rest period when addressing and sustaining discharge of the scan electrodes of the second group. The method of claim 1, Selectively performing additional sustain discharge on the discharge cells addressed in the first group and the second group after the fourth and eighth steps in the subfields of the first group and the second group, respectively. The driving method of the plasma display panel further comprising. A plasma display panel in which discharge cells are formed between the first electrode and the second electrode, and A driving circuit configured to apply a driving voltage to the first electrode and the second electrode by dividing one frame displayed on the plasma display panel into a plurality of subfields; The drive circuit, Dividing the plurality of first electrodes into a plurality of groups including a first group and a second group, dividing the plurality of subfields into a plurality of groups including a first group and a second group, In the subfield of the first group, after the addressing of the plurality of first electrodes included in the first group and sustain discharge of the discharge cells addressed in the first group, the plurality of groups included in the second group Addressing the first electrode and sustain discharges the discharge cells addressed in the second group, In the subfield of the second group, after the addressing of the plurality of first electrodes included in the second group and sustain discharge of the discharge cells addressed in the second group, the plurality of groups included in the first group And a sustain discharge of the addressed discharge cells in the first group.

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