JP2008166069A - Plasma display device and driving method thereof - Google Patents

Abstract

The present invention makes it possible to use the surface discharge mode even when a negative pulse having the same magnitude as the sustain voltage is applied to the sustain electrode in the reset period, so that it is not necessary to provide another negative voltage source. In addition, a plasma display apparatus and a driving method thereof that can reduce the size and cost by applying a negative pulse having the same magnitude as the sustain voltage are provided.
A plasma display apparatus according to the present invention applies a scan pulse having a ramp-up waveform to a scan electrode, a sustain electrode, and a reset period during a setup period of a reset period, and a sustain discharge to the sustain electrode. And a pulse control unit for applying a negative pulse having the same magnitude as the sustain pulse for.
[Selection] Figure 6

Description

  The present invention relates to a plasma display apparatus and a driving method thereof. More specifically, when a plasma display panel that uses a negative sustain pulse is driven, a negative pulse is applied to a sustain electrode during a setup period of a reset period to perform a surface discharge mode. The present invention relates to a plasma display device configured to be used and a driving method thereof.

  In general, a plasma display panel (hereinafter referred to as a PDP) maintains a reset pulse for initializing a discharge cell in each electrode, an address pulse for selecting a discharge cell, and a discharge cell discharge. A sustain pulse is applied a predetermined number of times depending on the gradation value of each subfield, and the phosphor is caused to emit light by gas discharge generated thereby. In such a PDP, the reset, addressing, and sustain as described above are repeated for each subfield constituting the frame. However, in order to improve the PDP driving characteristics, before each subfield starts. It is necessary to apply an erasing pulse for removing wall charges remaining on each electrode side.

FIG. 1 is a diagram showing a structure of a general plasma display panel.
As shown in FIG. 1, in the plasma display panel, a plurality of sustain electrode pairs in which a scan electrode 102 and a sustain electrode 103 are formed in pairs are arranged on a front glass 101 which is a display surface on which an image is displayed. The front panel 100 and the rear panel 110 in which the plurality of address electrodes 113 are arranged on the rear glass 111 forming the rear surface so as to intersect the plurality of sustain electrode pairs described above are coupled in parallel through a predetermined distance.

  The front panel 100 is made of a metal material and a scan electrode 102 and a sustain electrode 103 for maintaining a light emission of the cells by mutual discharge in one discharge cell, that is, a transparent electrode (a) formed of a transparent ITO material. The scan electrode 102 and the sustain electrode 103 provided with the bus electrode (b) are included in a pair. The scan electrode 102 and the sustain electrode 103 are covered by one or more upper dielectric layers 104 that limit the discharge current and insulate between the electrode pairs, and the upper dielectric layer 104 has an easy discharge condition on the upper surface. Therefore, a protective layer 105 deposited with magnesium oxide (MgO) is formed.

  In the rear panel 110, a plurality of discharge spaces, that is, stripe-type (or well-type) barrier ribs 112 for forming discharge cells are arranged in parallel. In addition, a large number of address electrodes 113 that perform address discharge and generate vacuum ultraviolet rays are arranged in parallel to the barrier ribs 112. R, G, and B phosphors 114 that emit visible light for image display during address discharge are applied to the upper surface of the rear panel 110. A lower dielectric layer 115 for protecting the address electrode 113 is formed between the address electrode 113 and the phosphor 114.

  A method for realizing image gradation in such a plasma display panel will be described with reference to FIG.

  FIG. 2 is a diagram illustrating a method for realizing image gradation of a general plasma display panel.

  As shown in FIG. 2, the conventional method for expressing the gray level of a plasma display panel divides one frame into a number of subfields having different numbers of light emission, and each subfield again initializes all cells. The period is divided into a reset period (RPD) for generating a cell, an address period (APD) for selecting a cell to be discharged, and a sustain period (SPD) for realizing a gray level according to the number of discharges. For example, when displaying an image with 256 gradations, a frame period of 16.67 ms corresponding to 1/60 seconds is divided into eight subfields (SF1 to SF8) as shown in FIG. Each of (SF1 to SF8) is divided again into a reset period, an address period, and a sustain period.

The reset period and address period of each subfield are the same for each subfield. Address discharge for selecting a cell to be discharged is caused by a voltage difference between the address electrode and the transparent electrode which is a scan electrode. The sustain period increases at a rate of 2 ⁿ (where n = 0, 1, 2, 3, 4, 5, 6, 7) in each subfield. As described above, since the sustain period is different in each subfield, the gradation of the image is expressed by adjusting the sustain period of each subfield, that is, the number of sustain discharges. A driving waveform according to the driving method of the plasma display panel will be described with reference to FIG.

  FIG. 3 is a diagram illustrating a driving waveform according to a driving method of a conventional plasma display panel.

  As shown in FIG. 3, the plasma display panel is divided into a reset period for initializing all cells, an address period for selecting cells to be discharged, and a sustain period for maintaining discharge of the selected cells. Driven.

  In the reset period, during the setup period (SU), the rising ramp waveform (Ramp-up) is simultaneously applied to all the scan electrodes (Y). The rising ramp waveform causes discharge in each discharge cell of the entire screen. Due to the setup discharge, positive wall charges are accumulated on the address electrode (X) and the sustain electrode (Z), and negative wall charges are accumulated on the scan electrode (Y). In the set-down period (SD), after the ramp-up waveform is supplied, the ramp-down waveform (Ramp) starts to drop from a positive voltage lower than the peak voltage of the ramp-up waveform and falls to the ground voltage (GND) or a negative specific voltage level. -down) is applied. As a result, a weak erasing discharge is generated in each discharge cell, and a part of the excessively formed wall charge is erased, and the wall charge to such an extent that an address discharge can occur stably by this set-down discharge is generated in each discharge cell. It remains uniformly inside.

  In the address period, a negative scan pulse is sequentially applied to each scan electrode (Y), and at the same time, a positive data pulse is applied to each address electrode (X) in synchronization with the scan pulse. While a voltage difference between the scan pulse and the data pulse and a wall voltage due to wall charges generated in the reset period are added, an address discharge is generated in the discharge cell to which the data pulse is applied. In each discharge cell selected by the address discharge, when a sustain voltage is applied, wall charges that can cause a discharge are formed. At this time, the sustain electrode (Z) has a positive voltage for reducing a voltage difference from the scan electrode (Y) between the set-down period and the address period to prevent erroneous discharge with the scan electrode (Y). A DC voltage (Vz) is supplied.

  In the sustain period, a sustain pulse (sus) is alternately applied to each scan electrode (Y) and sustain electrode (Z). The discharge cell selected by the address discharge is a sustain discharge, that is, a display discharge, between the scan electrode (Y) and the sustain electrode (Z) each time the sustain pulse is applied while the wall voltage and the sustain pulse are applied in the discharge cell. Will happen.

  After the sustain discharge is completed, a ramp waveform (Ramp-ers) having a small pulse width and voltage level is supplied to the sustain electrode (Z), thereby erasing wall charges remaining in each discharge cell of the entire screen. .

  On the other hand, the plasma display apparatus as described above applies a positive (+) sustain pulse (sus) alternately to the scan electrode (Y) side and the sustain electrode (Z) side during the sustain period. Thus, positive ions accumulate on the address electrode (X) side where the potential difference is low. At this time, positive ions relatively heavier than each electron are subjected to ion bombardment on the fluorescent layer (114 in FIG. 1) on the rear panel on which the address electrode (X) is formed. As a result, the life of the plasma display device is shortened.

  Therefore, recently, as shown in FIG. 4, the rear surface of the scan electrode (Y) and the sustain electrode (Z) formed with the sustain pulse (sus) described above having a negative (-) voltage level. Negative sustain driving is performed so that each electron is accumulated in the panel.

  FIG. 4 is a diagram illustrating a driving waveform according to a negative sustain driving method of a conventional plasma display panel.

  As shown in FIG. 4, negative negative sustain pulses (−sus) are alternately applied to the scan electrode (Y) and the sustain electrode (Z) during the sustain period.

  According to this, as described above, each electron is relatively accumulated in the rear panel 110 on which the fluorescent layer 114 is formed by the negative sustain pulse (-sus) described above. Accordingly, ion collisions applied to the fluorescent layer 114 are reduced. On the other hand, in the process of accumulating positive ions in the front panel 100, the amount of ion collision is increased in the protective layer formed on the front panel 100, that is, the magnesium oxide (MgO) layer 105, thereby secondary electrons (secondary electrons). ) Increase the incidence.

  That is, there is an advantage in that the generation amount of secondary electrons can be increased while preventing the loss of the fluorescent layer 114, the life of the plasma display device can be increased, and the discharge start voltage can be lowered.

  Meanwhile, the negative sustain pulse (-sus) described above can be applied to a long gap structure which is a new electrode structure.

  The distance between the conventional electrodes is about 60 to 80 μm, but a method of increasing the amount of light passing between the electrodes by increasing the distance between the electrodes by 150 μm or more has been proposed. This is called a long gap structure. According to the long gap structure, the light emission efficiency can be improved by increasing the amount of light emitted from the phosphor.

  As a method for realizing a long gap structure, it is common to form a long gap structure by reducing a conventional electrode area, that is, an ITO area. According to the long gap structure, when the sustain voltage is set to the ground voltage during the discharge between the scan electrode and the sustain electrode, a counter discharge is caused.

  The counter discharge means a discharge between the scan electrode and the data electrode. That is, in the long gap structure, when a voltage difference occurs between the scan electrode and the sustain electrode set to the ground voltage, the discharge is caused by the voltage difference between the scan electrode and the data electrode prior to the discharge between the scan electrode and the sustain electrode. Is called. Eventually, as described above, it can be seen that the long gap structure is driven on the premise that counter discharge occurs. This requires a driving method different from the driving method in the conventional surface discharge mode.

  Accordingly, an object of the present invention is to provide a plasma display apparatus configured to use a surface discharge mode by applying a negative pulse having the same magnitude as the sustain voltage to the sustain electrode during the reset period, and a driving method thereof. And

  In the plasma display apparatus according to the first aspect of the present invention, scan electrodes and sustain electrodes, data electrodes crossing the scan electrodes and sustain electrodes, and pulses having opposite polarities are applied to the scan electrodes and the sustain electrodes during a reset period, A pulse control unit configured to apply a negative sustain pulse to the scan electrode and the sustain electrode during a sustain period, and a separation distance between the scan electrode and the sustain electrode is the scan electrode or the sustain electrode. It is longer than the separation distance between the electrode and the data electrode.

  The plasma display device according to a second invention is characterized in that, in the plasma display device according to the first invention, the pulse applied to the scan electrode during the reset period is a rising ramp waveform.

  The plasma display device according to a third aspect of the present invention is the plasma display device according to the second aspect, wherein the voltage of the rising ramp waveform is larger than the voltage of the pulse applied to the sustain electrode during the reset period. Features.

The plasma display device according to a fourth aspect of the present invention is the plasma display device according to the second aspect, wherein a positive ramp waveform is applied to the scan electrode during the reset period, a negative pulse is applied to the sustain electrode, and the negative pulse The voltage is substantially the same as the voltage of the negative sustain pulse.

  The plasma display device according to a fifth aspect of the invention is the plasma display device according to the first aspect of the invention, wherein a separation distance between the scan electrode and the sustain electrode is not less than 100 μm and not more than 400 μm.

  The plasma display device according to a sixth aspect of the invention is the plasma display device according to the fifth aspect of the invention, wherein a separation distance between the scan electrode and the sustain electrode is not less than 150 μm and not more than 350 μm.

  The plasma display device according to a seventh aspect is the plasma display device according to the first aspect, wherein the separation distance between the scan electrode and the sustain electrode is a separation distance between the transparent electrode of the scan electrode and the transparent electrode of the sustain electrode. It is characterized by that.

  The plasma display device according to an eighth aspect is the plasma display device according to the fourth aspect, wherein the negative polarity pulse is supplied from the same voltage source as the negative polarity sustain pulse.

  According to a ninth aspect of the present invention, there is provided a plasma display apparatus driving method including a scan electrode, a sustain electrode, and a data electrode intersecting with the scan electrode and the sustain electrode, wherein the scan electrode and the sustain electrode are reset during a reset period. A pulse having opposite polarity to each other is applied to the electrode, and a negative sustain pulse is applied to the scan electrode and the sustain electrode during a sustain period, and the scan electrode and the sustain electrode The separation distance is longer than the separation distance between the scan electrode or the sustain electrode and the data electrode.

  A driving method of a plasma display apparatus according to a tenth aspect of the invention is the driving method of the plasma display apparatus according to the ninth aspect of the invention, wherein the pulse applied to the scan electrode during the reset period is a rising ramp waveform.

  The driving method of the plasma display apparatus according to the eleventh aspect of the invention is the driving method of the plasma display apparatus according to the tenth aspect of the invention, wherein the magnitude of the voltage of the rising ramp waveform is the voltage of the pulse applied to the sustain electrode during the reset period. It is characterized by being larger than.

  The driving method of the plasma display apparatus according to the twelfth aspect of the invention is the driving method of the plasma display apparatus according to the tenth aspect of the invention, wherein a positive ramp waveform is applied to the scan electrode and a negative pulse is applied to the sustain electrode during the reset period. The magnitude of the voltage of the applied negative pulse is substantially the same as the magnitude of the voltage of the negative sustain pulse.

  A driving method of a plasma display device according to a thirteenth aspect of the invention is the driving method of the plasma display device according to the ninth aspect of the invention, wherein a separation distance between the scan electrode and the sustain electrode is 100 μm or more and 400 μm or less.

  According to a fourteenth aspect of the present invention, there is provided a plasma display apparatus driving method according to the thirteenth aspect of the present invention, wherein the distance between the scan electrode and the sustain electrode is not less than 150 μm and not more than 350 μm.

  The driving method of the plasma display apparatus according to the fifteenth aspect of the invention is the driving method of the plasma display apparatus according to the ninth aspect of the invention, wherein the distance between the scan electrode and the sustain electrode is the transparent electrode of the scan electrode and the transparent electrode of the sustain electrode It is a separation distance.

  According to a sixteenth aspect of the present invention, there is provided a plasma display device driving method according to the twelfth aspect of the present invention, wherein the negative polarity pulse is supplied from the same voltage source as the negative polarity sustain pulse.

  The present invention makes it possible to use the surface discharge mode even when a negative pulse is applied to the sustain electrode during the setup period of the reset period, so that it is not necessary to provide another negative voltage source. By applying a negative pulse, the size and cost can be reduced.

  Hereinafter, a plasma display apparatus and a driving method thereof according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 5 is a view for explaining a plasma display apparatus according to the present invention.

  As shown in FIG. 5, the plasma display apparatus of the present invention is configured to drive pulses to the address electrodes (X1 to Xm), the scan electrodes (Y1 to Yn), and the sustain electrodes (Z) during the reset period, address period, and sustain period. Is applied to the plasma display panel 200 that expresses an image composed of a frame composed of a combination of at least one or more subfields, and data is transmitted to each address electrode (X1 to Xm) formed on the plasma display panel 200. A data drive unit 202 for supplying the scan electrodes, a scan drive unit 203 for driving the scan electrodes (Y1 to Yn), a sustain drive unit 204 for driving the sustain electrode (Z) that is a common electrode, The scan driver described above when driving the plasma display panel 200 03 and the sustain driver 204 to adjust the supply of the reset pulse in the reset period, adjust the supply of the scan pulse in the address period, and adjust the supply of the sustain pulse in the sustain period. And a drive voltage generation unit 205 for supplying a drive voltage necessary for the drive units 202, 203, and 204.

  The data driver 202 is supplied with data mapped to each subfield by a subfield mapping circuit (not shown) after inverse gamma correction and error diffusion by a reverse gamma correction circuit, error diffusion circuit, etc. (not shown). The The data driver 202 samples and latches data in response to a data timing control signal (CTRX) from a timing controller (not shown), and then sends the data to each address electrode (X1). To Xm). Further, an erase pulse is supplied to each address electrode (X1 to Xm) during the erase period.

  The scan driver 203 supplies a reset pulse to each scan electrode (Y1 to Yn) during the reset period under the control of the pulse controller 201, and supplies a scan pulse to each scan electrode (Y1 to Yn) during the address period. Then, under the control of the sustain pulse controller, a negative sustain pulse is supplied to each scan electrode (Y1 to Yn) during the sustain period, and an erase pulse is supplied to each scan electrode (Y1 to Yn) during the erase period.

  The sustain driver 204 supplies a bias voltage of a predetermined magnitude to each sustain electrode (Z) during the address period under the control of the pulse controller, and operates alternately with the scan driver 203 described above during the sustain period. A negative sustain pulse (-sus) is supplied to each sustain electrode (Z), and an erase pulse is supplied to the sustain electrode (Z) during the erase period.

  The pulse control unit 201 is a predetermined unit for controlling the operation timing and synchronization of the scan driving unit 203, the sustain driving unit 204, and the data driving unit 202 in the reset period, the address period, the sustain period, and the erasing period. A control signal is supplied to each drive unit 202, 203, 204.

  In particular, the pulse control unit 201 of the present invention can use the surface discharge mode so that pulses having opposite polarities are applied to the scan electrode and the sustain electrode in the reset period, as distinct from the prior art.

  On the other hand, the above-described data control signal (CTRX) controls a sampling clock for sampling data, a latch control signal, and an on / off time of an energy recovery circuit (not shown) and a drive switch element (not shown). A switch control signal is included. The scan control signal (CTRY) includes a switch control signal for controlling the on / off time of an energy recovery circuit (not shown) and a drive switch element (not shown) in the scan driver 203, and sustain control. The signal (CTRZ) includes a switch control signal for controlling an on / off time of an energy recovery circuit (not shown) and a drive switch element (not shown) in the sustain driver 204.

  The drive voltage generator 205 generates a setup voltage (Vsetup), a scan common voltage (Vscan-com), a scan voltage (−Vy), a sustain voltage (Vs), a data voltage (Vd), and the like. Each driving voltage can be changed depending on the generation of the discharge gas and the structure of the discharge cell.

  The operation of the plasma display apparatus of the present invention of FIG. 5 will be described more clearly by the following driving method.

  FIG. 6 is a diagram illustrating driving waveforms according to the negative sustain driving method of the plasma display panel according to the present invention.

  As shown in FIG. 6, in the present invention, pulses having opposite polarities are applied to the scan electrode and the sustain electrode during the reset period, and a negative sustain pulse is applied to the scan electrode and the sustain electrode during the sustain period. Features.

  Here, a pulse having a rising ramp waveform can be applied to the scan electrode during the reset period. For example, a positive rising ramp waveform can be applied to the scan electrode, and a negative pulse can be applied to the sustain electrode. The magnitude of the voltage of the negative polarity pulse can be made substantially the same as the magnitude of the voltage of the negative polarity sustain pulse. Further, the negative pulse can be supplied from the same voltage source as the negative sustain pulse.

  It is also possible to apply a negative pulse to the scan electrode during the reset period and apply a positive pulse to the sustain electrode to cause surface discharge. The magnitude of the voltage of the negative polarity pulse can be made substantially the same as the magnitude of the voltage of the negative polarity sustain pulse.

  Thus, the present invention can improve the discharge characteristics by utilizing the surface discharge mode. In the long gap structure, when the sustain electrode is maintained in the ground (GND) state during the reset period, a counter discharge is generated between the scan electrode and the data electrode that are relatively closer to each other than the scan electrode and the sustain electrode.

  In order to form a surface discharge again on the scan electrode and the sustain electrode after the occurrence of the counter discharge, an appropriate discharge voltage must be applied according to the amount of wall charges accumulated after the counter discharge.

  On the other hand, the present invention applies the same pulse as the pulse used for the surface discharge to the scan electrode, while applying a negative bias of the same magnitude as the sustain voltage applied for the sustain discharge to the sustain electrode. It is characterized by applying. That is, according to the present invention, reset is performed using a surface discharge that is not a counter discharge, and the voltage source used at this time is a voltage source having the same magnitude as the negative sustain pulse. This eliminates the need for a separate voltage source, thereby reducing cost and size. In the present invention, the surface discharge mode reset discharge can be effectively performed with the long gap structure in which the distance between the scan electrode and the sustain electrode is longer than the distance between the scan electrode or the sustain electrode and the data electrode. The separation distance between the scan electrode and the sustain electrode can be 100 μm or more and 400 μm or less. Further, the separation distance between the scan electrode and the sustain electrode can be adjusted to 150 μm or more and 350 μm or less, and the discharge efficiency can be increased with the long gap structure. Here, the separation distance between the scan electrode and the sustain electrode can be defined as the separation distance between the transparent electrode of the scan electrode and the transparent electrode of the sustain electrode.

  According to the present invention, when a negative sustain voltage is applied to the sustain electrode during the setup period of the reset period, a reset pulse applied for forming a surface discharge can be applied to the scan electrode. That is, a negative sustain pulse is applied to the sustain electrode while a reset pulse having a ramp-up waveform is applied to the scan electrode in the setup period of the reset period. This further increases the voltage difference between the scan electrode and the sustain electrode.

On the other hand, in the present invention, a reset pulse having a ramp-down waveform is applied to the scan electrode during the set-down period, while a positive sustain pulse is applied to the sustain electrode.

  In other words, a ramp-up waveform is applied to the scan electrode during the setup period of the reset period, and a ramp-down waveform is applied during the set-down period, while a negative sustain pulse is applied to the sustain electrode during the setup period, A positive sustain pulse is applied during the set-down period.

  As described above, rapid polarity reversal occurs between the scan electrode and the sustain electrode during the setup period of the reset period, and as a result, discharge easily occurs.

  On the other hand, as described above, in the present invention, when a ramp-up waveform is applied to the scan electrode during the reset period, the magnitude of the negative voltage applied to the sustain electrode is set to be equal to the magnitude of the sustain voltage (−Vs). It is characterized by doing.

This is because a negative sustain pulse having the same magnitude as the negative sustain pulse applied to the scan electrode and the sustain electrode during the sustain period is applied to the sustain electrode during the reset period. It can be driven without a voltage source.

  After all, according to the present invention, the driving pulse can be applied to the scan electrode during the reset period in the same manner as the surface discharge. At this time, the same voltage source is used for the scan electrode and the sustain electrode. Therefore, the size and cost can be reduced by applying a negative pulse having the same magnitude as the sustain voltage without providing a separate negative voltage source.

  Those skilled in the art can make modifications without departing from the technical phenomenon of the present invention through the contents described above, and the technical scope of the present invention is limited to the contents described in the detailed description of the specification. Rather, it should be defined by the claims.

It is a figure which shows the structure of a general plasma display panel. It is a figure which shows the method of implement | achieving the image gradation of a general plasma display panel. It is a figure which shows the drive waveform by the drive method of the conventional plasma display panel. It is a figure which shows the drive waveform by the negative sustain drive method of the conventional plasma display panel. 1 is a view for explaining a plasma display apparatus according to the present invention. FIG. 5 is a diagram illustrating a driving waveform according to a negative sustain driving method of a plasma display apparatus according to the present invention.

Explanation of symbols

200 Plasma Display Panel 201 Pulse Control Unit 202 Data Drive Unit 203 Scan Drive Unit 204 Sustain Drive Unit 205 Drive Voltage Generation Unit

Claims (16)

A scan electrode and a sustain electrode;
A data electrode intersecting the scan electrode and the sustain electrode;
A pulse control unit that applies pulses having opposite polarities to the scan electrode and the sustain electrode during a reset period, and applies a negative sustain pulse to the scan electrode and the sustain electrode during a sustain period; Including
The plasma display apparatus, wherein a separation distance between the scan electrode and the sustain electrode is longer than a separation distance between the scan electrode or the sustain electrode and the data electrode.   The plasma display apparatus as claimed in claim 1, wherein the pulse applied to the scan electrode during the reset period has a rising ramp waveform.   The plasma display apparatus of claim 2, wherein the magnitude of the voltage of the rising ramp waveform is greater than the magnitude of the voltage of the pulse applied to the sustain electrode during the reset period.   During the reset period, a positive ramp waveform is applied to the scan electrode, a negative pulse is applied to the sustain electrode, and the magnitude of the negative pulse voltage is substantially equal to the magnitude of the negative sustain pulse voltage. The plasma display apparatus according to claim 2, wherein the plasma display apparatuses are identical.   The plasma display apparatus as claimed in claim 1, wherein a distance between the scan electrode and the sustain electrode is 100 m or more and 400 m or less.   The plasma display apparatus as claimed in claim 5, wherein a separation distance between the scan electrode and the sustain electrode is 150 µm or more and 350 µm or less.   The plasma display apparatus of claim 1, wherein a distance between the scan electrode and the sustain electrode is a distance between the transparent electrode of the scan electrode and the transparent electrode of the sustain electrode.   The plasma display apparatus of claim 4, wherein the negative pulse is supplied from the same voltage source as the negative sustain pulse. In a driving method of a plasma display apparatus, comprising a scan electrode and a sustain electrode and a data electrode intersecting the scan electrode and the sustain electrode,
Applying pulses of opposite polarities to the scan electrode and the sustain electrode during a reset period;
A negative sustain pulse is applied to the scan electrode and the sustain electrode during a sustain period, and
The method of driving a plasma display apparatus, wherein a separation distance between the scan electrode and the sustain electrode is longer than a separation distance between the scan electrode or the sustain electrode and the data electrode.   The method of claim 9, wherein the pulse applied to the scan electrode during the reset period is a rising ramp waveform.   The method of claim 10, wherein the magnitude of the voltage of the rising ramp waveform is greater than the magnitude of the voltage of the pulse applied to the sustain electrode during the reset period.   During the reset period, a positive ramp waveform is applied to the scan electrode, a negative pulse is applied to the sustain electrode, and the magnitude of the negative pulse voltage is substantially equal to the magnitude of the negative sustain pulse voltage. The method of driving a plasma display apparatus according to claim 10, wherein the driving method is the same.   The method of claim 9, wherein a distance between the scan electrode and the sustain electrode is 100m or more and 400m or less.   14. The method of claim 13, wherein a separation distance between the scan electrode and the sustain electrode is 150 [mu] m to 350 [mu] m.   The method of claim 9, wherein the distance between the scan electrode and the sustain electrode is a distance between the transparent electrode of the scan electrode and the transparent electrode of the sustain electrode.   The method of claim 12, wherein the negative pulse is supplied from the same voltage source as the negative sustain pulse.