JP3539314B2 - Driving method of plasma display - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is to improve lighting failures caused by insufficient write discharge and perform stable sustain discharge at a low sustain voltage in a plasma display having a three-electrode structure and driven separately with an address period and a sustain period. And a method for driving a plasma display.
[0002]
[Prior art]
FIG. 5 is a diagram showing connections between the plasma display panel and the data-side drive unit, the scan-side drive unit, and the sustain-side drive unit.
[0003]
The data-side drive unit 33 is connected to the plurality of data-side electrodes 30 arranged on the plasma display panel, the scan-side drive unit 34 is connected to the vertically intersecting n-side scan-side electrodes 31, and the scan-side electrodes 31 are connected. The sustain driver 35 is connected to the n sustain electrodes 32 arranged in parallel.
[0004]
FIG. F. 9 is a driving waveform of a conventional AC discharge type plasma display in FIG.
[0005]
In the setup period 1, wall charges are accumulated in all cells in the plasma display in order to easily generate a discharge. In the address period 2, a write discharge of a cell to be lit is performed. In the sustain period 3, the cells written in the address period 2 are turned on, and the lighting is maintained. During the erase period, the lighting of the cell is stopped by erasing the wall charges.
[0006]
To perform the above discharge, a write pulse is applied to the address electrode 30 during the address period 2, a scan pulse 5 is applied to the scan electrode 31, and the sustain electrode is fixed at a constant potential. Further, when cells to be written in the scanning direction are continuous, the potential of the data electrode is kept constant while being changed from the data-side reference potential during scanning of the cell.
[0007]
In an AC discharge type plasma display, one frame image is divided into a plurality of subfields (hereinafter abbreviated as SF) to express gradation. In order to control the discharge of gas in the cell, 1S. F. Is further divided into four periods. The four periods will be described with reference to FIG.
[0008]
FIG. 6 is a schematic diagram of a cell structure of an AC discharge type plasma display.
[0009]
As shown in FIG. 6, a scan-side electrode 31, a sustain-side electrode 32, a dielectric 41, and a protective film 42 are disposed on the surface of a front plate 40, and the data-side electrode 30, a dielectric 45, and a cell are disposed on the surface of a back plate 44. The partition 43 and the phosphor 46 are arranged. A gas 47 for emitting and discharging light is sealed in the space in the cell. Reference numeral 50 denotes a phosphor surface near the data-side electrode 30, 51 denotes a protective film surface near the scan-side electrode 31, and 52 denotes a protective film surface near the sustain-side electrode 32.
[0010]
The four periods will be described in detail with reference to FIG. Here, the lower cell of the plasma display panel will be described as an example, but the same can be said for the upper part of the panel.
[0011]
In the set-up period, a higher voltage is applied to the scan-side electrode 31 than the data-side electrode 30 and the sustain-side electrode 32, and the gas 47 in the cell is discharged (a in the figure). The generated charges are accumulated on the wall of the cell so as to cancel the potential difference between the data side electrode 30, the scan side electrode 31, and the sustain side electrode 32. The charges are accumulated as wall charges, and positive charges are accumulated as wall charges on the protective film surfaces 50 and 52 near the data side electrode 30 and the sustain side electrode 332. Due to the wall charges, a wall potential V1 is generated between the address electrode and the scan electrode, and a wall potential V2 is generated between the sustain electrode and the scan electrode (b in the figure).
[0012]
In the address period 2, when the cell is turned on, a lower voltage is applied to the scan-side electrode 31 as compared with the data-side electrode 30 and the sustain-side electrode 32, that is, between the address electrode and the scan electrode, in the same direction as the wall potential V1. And a voltage is applied between the sustain electrode and the scan electrode in the same direction as the wall potential V2. As a result, the sum of the potential difference between the sustain electrode and the scan electrode and the wall potential V2 is applied to the gas 47, and a write discharge is generated (c and d in the figure). As a result, negative charges are accumulated on the protective film surfaces 50 and 52, and positive charges are accumulated as wall charges on the scan-side electrode 31 protective film surface 51. As a result, a wall potential V3 is generated between the sustain and the scan (e in the figure).
[0013]
In the sustain period 3, a sustain discharge is generated by applying a higher voltage to the scan electrode 31 than the sustain electrode 32, that is, by applying a voltage between the sustain electrode and the scan electrode in the same direction as the wall potential V3 ( F and g) in the figure. Thereby, the cell can be turned on.
[0014]
In the conventional method of driving a plasma display panel in which the address period and the sustain period are driven separately, a stable sustain discharge is achieved by performing a stable write discharge during the address period and accumulating sufficient wall charges. Occurs. Thereby, a good image is obtained.
[0015]
[Problems to be solved by the invention]
However, in driving a high-definition plasma display panel, the above-described method for driving a plasma display panel has the following problems.
[0016]
First, it is necessary to shorten the writing time per line as the definition of the plasma display panel increases. However, by shortening the write time, write discharge during the address period becomes insufficient, and sufficient wall charges are not accumulated. As a result, a high voltage is required to perform stable sustain discharge.
[0017]
Secondly, as the pixel cells become finer, recombination takes place when the charge generated by the discharge comes into contact with the wall of the cell, so that a high voltage is required to obtain a stable discharge.
[0018]
Due to the above-mentioned problems, the conventional plasma display panel driving method requires a high voltage for sustain discharge to obtain a stable image, and the power consumption increases as the high voltage becomes necessary. However, this is a major cause for driving the plasma display panel with low power.
[0019]
The present invention is to provide a technique capable of suppressing a writing discharge failure even in a high definition panel and performing a stable sustain discharge at a low sustain voltage.
[0020]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention changes the potential applied to the data electrode immediately after the writing discharge of the first pixel cell on the first scan electrode, thereby applying the next scanning pulse. A high wall potential can be obtained by accumulating wall charges on the data electrodes of the second pixel cells on the second scan electrodes, and the sustain discharge is performed at a low voltage.
[0021]
In addition, the present invention changes the potential applied to the data electrode immediately after the writing discharge of the pixel cell on the scan electrode, thereby accumulating wall charges on the protective film on the sustain electrode of the pixel cell, thereby increasing the wall potential. And the sustain discharge is performed at a low voltage.
[0022]
In addition, the present invention changes the potential applied to the second scan electrode to which the next scan pulse is applied, immediately after the writing discharge of the first pixel cell on the first scan electrode is performed. The wall charges can be accumulated on the protective film on the scan electrode to obtain a high wall potential, and the sustain discharge is performed at a low voltage.
[0023]
In addition, the present invention changes the potential applied to the sustain electrode immediately after the write discharge of the first pixel cell on the first scan electrode, thereby changing the wall charge on the protective film on the sustain electrode. And a high wall potential can be obtained, and the sustain discharge is performed at a low voltage.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
In order to solve the above-mentioned problem, claim 1 is to change the potential of the data electrode after the writing of the first pixel cell is performed and before the writing of the next second pixel cell is performed. The wall charges can be accumulated on the data electrode or the sustain electrode of the second pixel cell to obtain a high wall potential, and the sustain discharge can be performed at a low voltage.
[0025]
According to another aspect of the present invention, when cells to be written in the scanning direction are continuous, a pulse of negative polarity is applied to the data electrode immediately after writing discharge of the first pixel cell on the first scan electrode. By doing so, a high wall potential can be obtained by accumulating wall charges on the data electrode or the sustain electrode of the second pixel cell on the second scan electrode to which the next scan pulse is applied, and a high sustain potential can be obtained. Can be done with voltage.
[0026]
Also Run When cells to be written in the scan direction are continuous, the write pulse width is shortened, and a negative pulse is applied to the data electrode within the write time immediately after the write discharge of the first pixel cell on the first scan electrode is performed. Is applied, a wall charge is accumulated on the data electrode or the sustain electrode of the second pixel cell on the second scan electrode to which the next scan pulse is applied, and a high wall potential can be obtained. Can be performed at a low voltage.
[0027]
Also, cells to be written are continuous in the scanning direction, and writing is sequentially performed with the first cell at the top.
In this case, the write pulse width is shortened except when writing the first cell, and a negative pulse is applied to the data electrode within the write time. And to Therefore, the wall charges can be accumulated on the data electrodes of the pixel cells other than the first pixel cell without increasing the driving time to obtain a high wall potential, and the sustain discharge can be performed at a low voltage.
[0028]
Also , By changing the potential of the scan electrode after the writing of one cell is performed and before the writing of the next second cell is performed, wall charges are accumulated on the protective film on the second scan electrode to increase the potential. The wall potential can be obtained, and the sustain discharge can be performed at a low voltage.
[0029]
Also , By applying a positive-polarity pulse to the scan electrode when the selection of the can electrode moves to the next line, wall charges can be accumulated on the protective film on the scan electrode and a high wall potential can be obtained. Can be performed at low voltage.
[0030]
Also Run When cells to be written in the scanning direction are continuous, the scan pulse width is reduced, and a positive pulse is applied to the scan electrodes within the write time. The wall charges can be accumulated in the substrate to obtain a high wall potential, and the sustain discharge can be performed at a low voltage.
[0031]
Also Run In the case where cells to be written in the scanning direction are continuous and writing is sequentially performed with the first cell at the head, the scanning pulse width is reduced except for the writing of the first cell, and the scan electrode is applied with a positive polarity within the writing time. By applying a pulse, wall charges can be accumulated on the protective film on the scan electrode to obtain a high wall potential, and sustain discharge can be performed at a low voltage.
[0032]
Claims 3 Immediately after the writing discharge of the pixel cell is performed, by changing the potential applied to the sustain electrode, wall charges can be accumulated on the protective film on the sustain electrode, and a high wall potential can be obtained. Can be done with voltage.
[0033]
Claims 4 Changes the potential applied to the sustain electrode after the writing of the first cell is performed and before the writing of the next second cell is performed, thereby accumulating wall charges on the protective film on the sustain electrode. A high wall potential can be obtained, and the sustain discharge can be performed at a low voltage.
[0034]
Also Run When cells to be written continuously in the scanning direction, a positive pulse is applied to the sustain electrode within the write time to accumulate wall charges on the protective film on the sustain electrode to obtain a high wall potential. And the sustain discharge can be performed at a low voltage.
[0035]
Also Run When cells to be written in the scanning direction are continuous and writing is sequentially performed with the first cell at the top, by applying a positive pulse to the sustain electrode within the writing time except when writing the first cell. In addition, wall charges can be accumulated on the protective film on the sustain electrode to obtain a high wall potential, and the sustain discharge can be performed at a low voltage.
[0036]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0037]
(Embodiment 1)
FIG. 1 shows a driving method of a plasma display panel according to an embodiment of the present invention. In FIG. 1, 1 is a setup period, 2 is an address period, 3 is a sustain period, 4 is an erase period, and 5 is a scan. Pulse, 6 is the voltage waveform applied to the sustain-side electrode, 7 is the voltage waveform applied to the n-th scan-side electrode from the top of the plasma display panel, 8 is the voltage waveform applied to the (n + 1) -th scan-side electrode from the top of the panel, and 9 is the data-side electrode application A voltage waveform 20 is a pulse waveform for setting the potential of the data electrode to a potential lower than the writing potential. T1 is a writing time.
[0038]
FIG. 9 is a diagram for explaining a discharge in a cell when the above-described driving method is performed. In FIG. 9, reference numeral 30 denotes a data side electrode, 31 denotes a scan side electrode and a sustain side electrode, and 50 denotes a data side electrode. The surface of the phosphor near the electrode 30, the surface of the protective film 51 near the scan-side electrode 31, and the surface of the protective film 52 near the sustain-side electrode 32 are shown. V5 is a wall voltage accumulated between the data and scan electrodes. “a”, “b” or “c” represents a pixel cell, and write discharge is sequentially performed in the order of “c”, “b” and “a”. In the figure, a write discharge is performed in the pixel cell b.
[0039]
The writing discharge is performed by applying a writing voltage to the data electrode simultaneously with the generation of the scanning pulse. In the conventional driving method, when cells to be written in the scanning direction are continuous, a constant voltage is applied to the address electrodes.
[0040]
However, by applying the pulse waveform 20 to the data electrode when the selection of the scanning electrode is shifted to the next line, the charge generated by the writing discharge and remaining in the gas in the cell b is changed to the fluorescence near the data side electrode 30 in the cell a. It is accumulated on the body surface 50. As a result, more wall charges can be stored in the data electrode than in the conventional driving method, and the wall voltage V5 increases. Therefore, by increasing the voltage applied to the gas in the cell, the writing discharge is increased and writing can be performed effectively.
[0041]
FIG. 7 is a diagram for explaining the discharge in the cell when the above driving method is performed. In FIG. 7, reference numeral 30 denotes a data side electrode, 31 denotes a scan side electrode, 32 denotes a sustain side electrode, and 50 denotes a sustain side electrode. The surface of the phosphor near the data side electrode 30, the surface of the protective film 51 near the scan side electrode 31, and the surface of the protective film near the sustain side electrode 32 are shown.
[0042]
V1 is a wall voltage accumulated between the data and scan electrodes during the reset period, V2 is a wall voltage stored between the sustain and scan electrodes during the reset period, and V3 is a scan voltage between the scan and sustain electrodes during the address period. Is the wall voltage stored in the V4 is the potential difference between the sustain and address electrodes during the address period.
[0043]
The electrons floating in the gas after writing discharge have a higher potential than the scan electrode. High However, more electrons can be attracted to the sustain electrode surface 52 by lowering the potential of the data electrode 30 and increasing the potential difference V4 between the data electrode 30 and the sustain electrode 31. As a result, the wall potential between the scan electrode and the sustain electrode is increased, and light emission discharge can be generated with a low sustain voltage.
[0044]
Here, by applying the pulse waveform 20 to the data electrode 30 after the writing time t1, the time required for writing one scan line increases, so that the address period increases and the driving time increases.
[0045]
The following drive is performed to suppress the increase in the drive time.
[0046]
FIG. 11 is a diagram for explaining a discharge speed during an address period when cells to be written in the scanning direction are continuous. In FIG. 11, reference numeral 30 denotes a data side electrode, 31 denotes a scan side electrode, and 32 denotes a scan side electrode. Is a sustain side electrode, and 44 is a cell partition.
[0047]
When there is a lot of charge in the gas in the cell, when an electric field is applied to the gas in the cell, the charge is accelerated, and energy is transferred from the charge to gas molecules in the cell, thereby discharging the gas in the cell. Is promoted. Conversely, when the charge in the gas in the cell is small, the discharge takes a long time because the amount of charge transmitted to the gas molecules in the cell is small.
[0048]
For this reason, when cells to be written in the scanning direction are continuous as shown in FIG. 11, the writing discharge of the next cell is performed while electric charges remain in the gas in the cell written immediately before, Write discharge becomes faster.
[0049]
FIG. 12 is a diagram for explaining the discharge during the address period. In FIG. 12, reference numeral 6 denotes a sustain-side electrode applied voltage waveform, 9 denotes a data-side electrode applied voltage waveform, 10 denotes a cell emission waveform, and 11 denotes discharge emission. is there.
[0050]
The write discharge is performed by applying a write pulse to the data electrode simultaneously with the generation of the scan pulse, and the discharge light emission 11 is generated. When cells to be written in the scanning direction are continuous, the write discharge is performed while electric charges remain in the gas in the cell in which the write has been performed immediately before, so that the write discharge is fast and the write time has a margin. Therefore, even if the write pulse width is reduced, the drive time can be reduced without deteriorating the image quality. The drive time is increased by applying the pulse waveform 20, but by shortening the write pulse, efficient writing can be performed without increasing the drive time, and luminescence discharge can be generated at a low sustain voltage. it can. However, in the case where cells to be written are continuous in the scanning direction and writing is sequentially performed with the first cell at the head, a discharge failure occurs because there is no cell that performs writing discharge immediately before writing of the first cell is performed. Sometimes. At this time, the write pulse width is shortened except when the first cell is written, and the pulse waveform 20 is applied to the data electrode within the write time, so that the drive time is suppressed from increasing and efficient writing is performed. Light emission discharge can be generated with a low sustain voltage.
[0051]
(Embodiment 2)
FIG. 2 shows a method of driving a plasma display panel according to an embodiment of the present invention. In FIG. 2, 1 is a setup period, 2 is an address period, 3 is a sustain period, 4 is an erase period, and 5 is a scan. Pulse, 6 is the voltage waveform applied to the sustain-side electrode, 7 is the voltage waveform applied to the n-th scan-side electrode from the top of the plasma display panel, 8 is the voltage waveform applied to the (n + 1) -th scan-side electrode from the top of the panel, and 9 is the data-side electrode application A voltage waveform 21 is a pulse waveform for setting the potential of the scan electrode to a potential higher than the writing potential.
[0052]
FIG. 10 is a diagram for explaining the discharge in the cell when the above driving method is performed. In FIG. 10, reference numeral 30 denotes a data side electrode, 31 denotes a scan side electrode and a sustain side electrode, and 50 denotes a data side electrode. The surface of the phosphor near the electrode 30, the surface of the protective film 51 near the scan-side electrode 31, and the surface of the protective film 52 near the sustain-side electrode 32 are shown. V5 is a wall voltage accumulated between the data and scan electrodes. “a”, “b” or “c” represents a pixel cell, and write discharge is sequentially performed in the order of “c”, “b” and “a”. In the figure, a write discharge is performed in the pixel cell b.
[0053]
The writing discharge is performed by applying a writing voltage to the data electrode simultaneously with the generation of the scanning pulse. In the conventional driving method, when cells to be written in the scanning direction are continuous, a constant voltage is applied to the address electrodes.
[0054]
However, by applying the pulse waveform 21 to the scan electrode when the selection of the scan electrode moves to the next line, the charge generated by the write discharge and remaining in the gas in the b cell is protected in the vicinity of the scan side electrode 31 in the a cell. It is accumulated on the film surface 51. As a result, more wall charges can be stored in the scan electrode than in the conventional driving method, and the wall voltage V5 increases. Therefore, by increasing the voltage applied to the gas in the cell, the writing discharge is increased and writing can be performed effectively.
[0055]
Here, by applying the pulse waveform 21 to the scan electrode 31 after the writing time t1, the time required for writing one scanning line increases, so that the address period increases and the driving time increases.
[0056]
The following drive is performed to suppress the increase in the drive time.
[0057]
As described in (Embodiment 1), when cells to be written in the scanning direction are continuous, the write discharge is performed while the charge written immediately before remains, so that the write discharge is fast and the write time is short. Can afford. Therefore, even if the width of the writing pulse and the width of the scanning pulse are reduced, the driving time can be reduced without deteriorating the image quality. The drive time is increased by applying the pulse waveform 21, but by shortening the scan pulse width, efficient writing is performed without increasing the drive time, and light emission discharge is generated at a low sustain voltage. Can be.
[0058]
However, in the case where cells to be written are continuous in the scanning direction and writing is sequentially performed with the first cell at the head, a discharge failure occurs because there is no cell that performs writing discharge immediately before writing of the first cell is performed. Sometimes. At this time, except for the writing of the first cell, the scan pulse width is shortened, and the pulse waveform 21 is applied to the scan electrode within the writing time, thereby suppressing the increase in the driving time and performing efficient writing. Light emission discharge can be generated with a low sustain voltage.
[0059]
(Embodiment 3)
FIG. 3 shows a method of driving a plasma display panel according to an embodiment of the present invention. In FIG. 3, 1 is a setup period, 2 is an address period, 3 is a sustain period, 4 is an erase period, and 5 is a scan. Pulse, 6 is a sustain-side electrode applied voltage waveform, 7 is the n-th scan-side electrode applied voltage waveform from the top of the plasma display panel, 8 is the (n + 1) -th scan-side electrode applied voltage waveform from the top of the panel, and 9 is the data-side electrode applied A voltage waveform 22 is a pulse waveform for setting the potential of the sustain electrode to a potential higher than the writing potential. T1 is a writing time.
[0060]
FIG. 7 is a diagram for explaining the discharge in the cell when the above driving method is performed. In FIG. 7, 30 is a data side electrode, 31 is a scan side electrode and a sustain side electrode, and 50 is a data side electrode. The surface of the phosphor near the electrode 30, the surface of the protective film 51 near the scan-side electrode 31, and the surface of the protective film 52 near the sustain-side electrode 32 are shown. V1 is a wall voltage accumulated between the data and scan electrodes during the reset period, V2 is a wall voltage stored between the sustain and scan electrodes during the reset period, and V3 is a scan voltage between the scan and sustain electrodes during the address period. Is the wall voltage stored in the V4 is the potential difference between the sustain and address electrodes during the address period.
[0061]
Here, by applying the pulse waveform 22 to the sustain electrode 32 after the writing time t1, the time required for writing one scan line increases, so that the address period increases and the driving time increases.
[0062]
The following drive is performed to suppress the increase in the drive time.
[0063]
As described in (Embodiment 1), when cells to be written in the scanning direction are continuous, the write discharge is performed while the charge written immediately before remains, so that the write discharge is fast and the write time is short. Can afford. Therefore, even if the scan pulse width or the write pulse width is reduced, the driving time can be reduced without deteriorating the image quality. The driving time is increased by applying the pulse waveform 22, but by shortening the scanning pulse width or the writing pulse width, efficient writing is performed without increasing the driving time, and the light emission discharge is performed at a low sustaining voltage. Can be caused.
[0064]
However, in the case where cells to be written are continuous in the scanning direction and writing is sequentially performed with the first cell at the head, a discharge failure occurs because there is no cell that performs writing discharge immediately before writing of the first cell is performed. Sometimes. At this time, the scan pulse width or the write pulse width is shortened except when writing the first cell, and the pulse waveform 22 is applied to the sustain electrode within the write time, so that the drive time is not increased and efficient write is performed. And light emission discharge can be generated at a low sustain voltage.
[0065]
【The invention's effect】
As described above, according to the plasma display driving method of the present invention, the following effects can be obtained.
[0066]
From claim 1 of the present invention 2 The plasma display driving method described in (1) changes the potential applied to the data electrode immediately after the writing discharge is performed, so that the wall pulse is applied to the data electrode or the sustain electrode of the pixel cell on the scan electrode to which the next scan pulse is applied. And a high wall potential can be obtained, and the sustain discharge can be performed at a low voltage.
[0068]
Claims of the present invention 3 From 4 The plasma display driving method described in (1), by changing the potential applied to the sustain electrode immediately after the writing discharge is performed, can accumulate wall charges on the protective film on the sustain electrode to obtain a high wall potential and maintain it. Discharge can be performed at low voltage.
[Brief description of the drawings]
FIG. 1 is a diagram showing a driving method of a plasma display panel according to a first embodiment of the present invention.
FIG. 2 is a diagram showing a driving method of a plasma display panel according to a second embodiment of the present invention.
FIG. 3 is a diagram showing a driving method of a plasma display panel according to a third embodiment of the present invention.
FIG. 4 is a diagram showing an example of a conventional driving method of a plasma display panel.
FIG. 5 is a diagram showing connections of a plasma display panel, a data-side drive unit, a scan-side drive unit, and a sustain-side drive unit.
FIG. 6 is a diagram showing an example of the structure of a plasma display panel.
FIG. 7 is a diagram for explaining discharge in cells of the plasma display panel according to the first embodiment and the third embodiment of the present invention;
FIG. 8 is a diagram for explaining an example of discharge in a cell of a conventional plasma display.
FIG. 9 is a diagram for explaining discharge in a cell of the plasma display panel according to the first embodiment of the present invention.
FIG. 10 is a diagram for explaining a discharge in a cell of the plasma display panel according to the second embodiment of the present invention;
FIG. 11 is a diagram for explaining an example of discharge in a cell of a conventional plasma display.
FIG. 12 is a diagram for explaining a priming effect during an address period;
[Explanation of symbols]
1 Setup period
2 Address period
3 Sustain period
4 Erase period
5 scanning pulse
6 Sustain side electrode applied voltage waveform
7 nth scan-side electrode applied voltage waveform from top of plasma display panel
8 Voltage waveform applied to the (n + 1) th scan-side electrode from the top of the plasma display panel
9 Data side electrode applied voltage waveform
20 Pulse waveform for setting the potential of the data electrode to a potential lower than the writing potential

Claims (5)

A method for driving an AC discharge type plasma display, comprising: a plurality of data electrodes; a plurality of scan electrodes perpendicularly intersecting the data electrodes; and a plurality of sustain electrodes arranged in parallel to the scan electrodes. A sustain period for lighting the pixel cells according to the selection; and applying a positive voltage to a sustain electrode during the address period.
A driving method of a plasma display, wherein a negative pulse is applied to a data electrode after writing of a first cell is performed in an address period and before writing of a next second cell is performed. 2. The plasma display according to claim 1, wherein when cells to be written in the scanning direction are continuous, a pulse of a negative polarity is applied to the data electrode when the selection of the scan electrode shifts to the next line. Drive method. A method of driving an AC discharge type plasma display comprising a plurality of data electrodes, a plurality of scan electrodes perpendicularly intersecting the data electrodes, and a plurality of sustain electrodes arranged in parallel to the scan electrodes.
An address period for selecting lighting or extinguishing of the pixel cell, and a sustain period for lighting the pixel cell according to the selection;
A driving method of a plasma display, wherein a positive polarity pulse is applied to a sustain electrode after writing of a first cell is performed in an address period and before writing of a next second cell is performed. 6. The method according to claim 5, wherein a positive polarity pulse is applied to the sustain electrode when the selection of the scan electrode shifts to the next line during the address period. Plasma display and drives one of the methods of claims 1 4.

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