KR100603370B1 - Driving method of plasma display panel - Google Patents

Abstract

An object of the present invention is to drive a plasma display panel so that address discharge characteristics are not differentiated according to phosphor characteristics.

In order to achieve the above object, the present invention provides a plasma display panel including address electrode lines corresponding to red, green and blue phosphors, and scan electrode lines and sustain electrode lines intersecting the address electrode lines. A method of driving a plasma display panel in which a unit frame is divided into a plurality of subfields for time division gray scale display, and reset, address, and sustain discharge steps are performed in each of the subfields.

In the reset step, after the rising ramp signal is applied at the first voltage to the scan electrode lines, the falling ramp signal is applied at the first voltage, and the second voltage is applied to the sustain electrode lines while the falling ramp signal is applied. Become,

While the rising ramp signal is applied, a first pulse having a negative third voltage is applied to the address electrode lines corresponding to the red and blue phosphors among the address electrode lines, and the address electrode corresponding to the green phosphor among the address electrode lines. A method of driving a plasma display panel is characterized in that a second pulse having a third voltage is applied to lines.

Description

Driving method of plasma display panel {Driving method of plasma display panel}

1 is a view schematically showing an electrode arrangement of a plasma display panel.

FIG. 2 is a timing diagram illustrating an example of a conventional driving signal applied to each electrode of the plasma display panel in FIG. 1.

3 is Fig. 1 is a block diagram briefly showing a driving device of the plasma display panel for realizing the driving method of the plasma display panel of the present invention.

4 is a timing diagram for describing a driving signal applied to an electrode of each plasma display panel as a driving method of the plasma display panel of the present invention.

FIG. 5 is a timing diagram for describing in detail a driving signal applied to the sustain electrode and the address electrode in the reset period among the driving signals of FIG. 4.

Explanation of symbols on the main parts of the drawings

Ce ... discharge cell, SF ... subfield,

PR ... reset period, PA ... address period,

PS ... dielectric zone, Vg ... ground voltage,

1 ... plasma display panel, 300 ...

302 ... logic control section, 304 ... Y driving section,

306 ... address drive, 308 ... X drives,

Vs ... first voltage or sustain discharge voltage,

Vb ... second voltage or bias voltage, Vset + Vs ... rising maximum voltage,

Vnf ... lowest falling voltage, Vn ... third voltage,

Vsch ... 4th voltage or scan high voltage,

Vscl ... fifth voltage or scan low voltage.

Va ... sixth voltage or address voltage,

400 ... 1st pulse, 410 ... 2nd pulse,

PW1 ... pulse width of the first pulse, PW2 ... pulse width of the second pulse.

The present invention relates to a driving method of a plasma display panel, and more particularly, to a driving method of a plasma display panel for driving a plasma display panel so that address discharge characteristics are not differentiated according to phosphor characteristics.

1 is a view schematically showing an electrode arrangement of a plasma display panel.

Referring to FIG. 1, in the plasma display panel, the electrode structures of the scan electrode lines Y1,..., Yn and the sustain electrode lines X1,..., Xn are arranged in parallel to the horizontal direction of the panel. ) And address electrode lines A1r, ..., arranged perpendicularly to the scan electrode lines Y1, ..., Yn and sustain electrode lines X1, ..., Xn. Amb) The address electrode lines A1r, ..., Amb are address electrode lines A1r, ..., Amr corresponding to a red phosphor, and address electrodes corresponding to a green phosphor according to a phosphor inside a plasma display panel. Lines A1g, ..., Amg and address electrode lines A1b, ..., Amb corresponding to blue phosphors are divided. A portion where the scan electrode line, the sustain electrode line, and the red, green, and blue address electrode lines cross each other defines a discharge cell Ce, and the discharge cell Ce serves as a pixel of the plasma display panel. There are red (R), green (G), and blue (B) phosphors and a plasma forming gas in the space of the discharge cell Ce, and discharged by voltages applied to the scan electrodes, sustain electrodes, and address electrodes, respectively. Wall charges are generated inside the cell Ce. Plasma is formed from the plasma forming gas by the wall charge, and phosphors of the discharge cells Ce are excited by ultraviolet radiation from the plasma to generate light.

FIG. 2 is a timing diagram illustrating an example of a conventional driving signal applied to each electrode of the plasma display panel in FIG. 1.

As a driving method of the plasma display panel 1, an address-display separation driving method which is mainly used is disclosed in US Pat. No. 5,541,618. That is, the unit frame may be divided into a predetermined number, for example, eight subfields to realize time division gray scale display, and each subfield is divided into a reset period, an address period, and a sustain discharge period.

Referring to FIGS. 1 and 2, one subfield SF includes a reset period PR, an address period PA, and a sustain discharge period PS, and includes an address electrode A and a sustain electrode X. FIG. ) And scan electrodes Y1 to Yn, respectively.

First, the reset period PR initializes the wall charge state of all the discharge cells Ce by applying reset pulses to all the scan electrode lines Y1,..., And Yn and performing initialization discharge. The reset period PR is carried out before entering the address period PA, which is carried out over the entire screen, thus making it possible to create a fairly even and evenly distributed wall charge arrangement.

Next, in the address period PA, in order to select a cell to be turned on, a bias voltage Vb is applied to the sustain electrode X, a scan high voltage Vsch is applied to the scan electrode Y, Scanning pulses having a scan low voltage Vscl are applied for each scan electrode line Y1, ..., Yn. The display data signal having the address voltage Va is applied to the address electrode A.

Next, in the sustain discharge period PS, the sustain having the sustain discharge voltage Vs at the sustain electrode X and the scan electrode Y so that the sustain discharge is performed in the cell to be turned on selected in the address period PA. Apply pulses alternately. At this time, a plasma is formed from the plasma forming gas of the discharge cells performing sustain discharge, and the phosphors of the discharge cells are excited by ultraviolet radiation from the plasma to generate light.

In terms of the wall charges inside the discharge cells Ce, in the reset period PR, a rising ramp function and a falling ramp function are applied to the scan electrode Y, so that reset discharge is performed and negative wall charges are accumulated. Positive wall charges are accumulated on the sustain electrode X and the address electrode A. FIG.

In the address period PA, in order to select a discharge cell, address discharge is performed. Since the negative scan low voltage Vscl is applied to the scan electrode Y, the positive wall charges are accumulated, and the positive address voltage Va is applied to the address electrode A. Will accumulate.

In the sustain discharge period PS, a sustain discharge is performed. First, the sustain discharge voltage Vs is applied to the scan electrode Y to accumulate negative wall charges, and to accumulate positive wall charges to the sustain electrode X. Since the sustain pulse is alternately applied, negative wall charges are accumulated on the scan electrode Y, and positive wall charges are accumulated on the sustain electrode X. As the sustain pulse is alternately applied to the scan electrode Y and the sustain electrode X, the wall charge state is repeated.

On the other hand, efforts have been made to accumulate more positive wall charges on the address electrode A so that the address discharge is more efficiently performed in the address period PA. For this purpose, in the reset period PR, a pulse having a negative voltage is applied to the address electrode A while the rising ramp signal is applied to the scan electrode Y. In other words, the same pulse having a negative voltage is applied to the address electrode lines A1r, ..., Amb corresponding to the red, green, and blue phosphors to accumulate more positive wall charges.

 However, among the phosphors applied on the address electrode A, a red phosphor (for example, (Y, Gd) BO3: Eu) commonly employed has a positive polarity having a positive charge and a blue phosphor ( For example, BaMgAl10O17: Eu has weak positive charge characteristics, while green phosphors (eg, Zn2SiO4: Mn) have negative charge characteristics. In the subpixel of the discharge cell through which the address electrode coated with the green phosphor is applied, that is, the phosphor having the negative charge characteristic, the positive charge accumulates relatively more than the subpixel of the discharge cell through which the address electrode coated with the phosphor having no negative charge characteristic or passed through Since it is difficult to form, low discharge is likely to occur during address discharge.

Also, since the time for accumulating the positive wall charges on the address electrodes corresponding to the red, green, and blue phosphors is different for each phosphor, when the same pulse having the negative voltage is applied, the address according to the red, green, and blue phosphors is applied. Wall charges are differently formed on the electrode, and in particular, a red phosphor emits a problem of overdischarge.

In order to solve the above problems, an object of the present invention is to provide a method of driving a plasma display panel for driving a plasma display panel so that address discharge characteristics are not differentiated according to phosphor characteristics.

In order to achieve the above object, the present invention provides a plasma display panel including address electrode lines corresponding to red, green and blue phosphors, and scan electrode lines and sustain electrode lines intersecting the address electrode lines. A method of driving a plasma display panel in which a unit frame is divided into a plurality of subfields for time division gray scale display, and reset, address, and sustain discharge steps are performed in each of the subfields.

In the reset step, after the rising ramp signal is applied at the first voltage to the scan electrode lines, the falling ramp signal is applied at the first voltage,

While the falling ramp signal is applied, a second voltage is applied to the sustain electrode lines,

While the rising ramp signal is applied, a first pulse having a negative third voltage is applied to the address electrode lines corresponding to the red and blue phosphors among the address electrode lines, and the address electrode corresponding to the green phosphor among the address electrode lines. A method of driving a plasma display panel is characterized in that a second pulse having a third voltage is applied to lines.

According to another aspect of the present invention, in the driving method, a scan pulse having a fifth voltage is sequentially applied while the fourth voltage is applied to the scan electrode lines, and the scan pulse is applied to the address electrode lines. Accordingly, a display data signal having a sixth voltage is applied,

In the sustain discharge step, sustain pulses having a first voltage and a ground voltage may be alternately applied to the scan electrode lines and the sustain electrode lines.

According to another feature of the invention, the driving method, the first pulse may be applied in time before the second pulse.

According to another feature of the invention, the driving method, the first pulse may be applied from the start of the rising ramp signal application, the second pulse may be applied until the end of the rising ramp signal application.

According to another feature of the invention, the driving method, the pulse width of the first pulse may be larger than the pulse width of the second pulse.

In order to achieve the above object of the present invention, there is provided a recording medium on which a program for executing any one of the above driving methods on a computer is recorded.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention.

Japanese Laid-Open Patent Publication No. 1999-120924 discloses a structure of a conventional plasma display panel. That is, between the front and rear glass substrates of the conventional plasma display panel, the address electrode lines, the dielectric layer, the scan electrode lines (Y1, ..., Yn), the sustain electrode lines (X1, ..., Xn) ), A fluorescent layer, a partition wall, and a magnesium monoxide (MgO) protective layer.

The address electrode lines are formed in a predetermined pattern on the front side of the rear glass substrate. The lower dielectric layer is applied to the front of the address electrode lines. In front of the lower dielectric layer, barrier ribs are formed in a direction parallel to the address electrode lines. These partitions partition the discharge area of each display cell and serve to prevent optical interference between each display cell. The fluorescent layer is applied in front of the dielectric layer on the address electrode lines between the partition walls, and a red light emitting fluorescent layer, a green light emitting fluorescent layer, and a blue light emitting fluorescent layer are sequentially disposed.

The sustain electrode lines X1, ..., Xn and the scan electrode lines Y1, ..., Yn are formed in a predetermined pattern on the rear side of the front glass substrate so as to be orthogonal to the address electrode lines. Each intersection sets a corresponding display cell. Each sustain electrode line (X1, ..., Xn) and each scan electrode line (Y1, ..., Yn) have conductivity and transparent electrode line (Xna, Yna) of transparent conductive material such as ITO (Indium Tin Oxide) Metal electrode lines (Xnb, Ynb) to increase the can be formed by combining. The front dielectric layer is formed by applying the entire surface to the back of the sustain electrode lines X1, ..., Xn and the scan electrode lines Y1, ..., Yn. A protective layer for protecting the panel from a strong electric field, for example, a magnesium monoxide (MgO) layer, is formed by applying the entire surface to the back of the front dielectric layer. The plasma forming gas is sealed in the discharge space.

The driving method generally applied to the plasma display panel is a method in which the reset, address and sustain discharge steps are sequentially performed in the unit sub-field. In the reset step, the charge states of the display cells to be driven are made uniform. In the address step, the charge state of display cells to be selected and the charge state of display cells not to be selected are set. In the sustain discharge step, display discharge is performed in the display cells to be selected. At this time, a plasma is formed from the plasma forming gas of the display cells which perform the display discharge, and the fluorescent layers of the display cells are excited by ultraviolet radiation from the plasma to generate light.

It should be noted that the method of driving the plasma display panel according to the present invention is not limited to the plasma display panel having the above structure, and can be applied to all plasma display panels having the three-electrode structure.

3 is a block diagram schematically illustrating a driving apparatus of a plasma display panel for realizing a method of driving a plasma display panel of the present invention.

Referring to the drawings, a driving apparatus for driving a plasma display panel includes an image processor 300, a logic controller 302, an address driver 306, an X driver 308, and a Y driver 304.

The image processor 300 receives an external image signal and performs image processing to output an internal image signal. The internal image signals include 8-bit red (R), green (G), and blue (B) image data, clock signals, and vertical and horizontal sync signals, respectively.

The logic controller 302 receives an internal image signal from the image processor 300 and applies it to each of the address electrode lines, the scan electrode lines, and the sustain electrode lines through a gamma correction or an automatic power control (APC) step. The driving control signals SA, SY, and SX for controlling the driving signals are output.

The address driver 306 receives and processes the address signal SA from the driving control signals SA, SY, and SX from the logic controller 302 to generate a display data signal, and generates the display data signal. Applied to the electrode lines.

The X driver 308 receives the X driving control signal SX from among the driving control signals SA, SY, and SX from the logic controller 302, and applies the X driving control signal SX to the sustain electrode lines.

The Y driver 304 receives the Y driving control signal SY from among the driving control signals SA, SY, and SX from the logic controller 302, and applies the Y driving control signal SY to the scan electrode lines.

4 is a timing diagram for describing a driving signal applied to an electrode of each plasma display panel as a driving method of the plasma display panel of the present invention.

In the reset period PR, the ground voltage Vg is first applied to the scan electrode lines Y1, ..., Yn. Next, at a time t1, a first voltage, which is the sustain discharge voltage Vs, is rapidly applied, and a rising ramp signal is applied from time t1 to t2 to reach the highest rising voltage Vset + Vs. The weak discharge occurs due to the application of the rising ramp signal having an inclined slope, and the negative discharge starts to accumulate in the vicinity of the scan electrode lines Y1,..., And Yn.

Next, the first voltage Vs is suddenly applied at time t2, and a falling ramp signal is applied from time t2 to t3 to reach the lowest falling voltage Vnf. A weak discharge occurs due to the application of a falling ramp signal having a steep slope, and the weak discharge is generated to discharge some of the negative charges accumulated near the scan electrode lines Y1, ..., Yn. As a result, a negative amount of negative charge suitable for generating an address discharge remains in the vicinity of the scan electrode lines Y1, ..., and Yn.

An erase pulse is applied to the sustain electrode lines X1, ..., Xn until a time t1, a ground voltage Vg is applied from a time t1 to a t2, and a bias voltage Vb, which is a second voltage, is provided at a time t2. Is approved.

During the period from the time t1 to the time t2 when the rising ramp signal is applied to the scan electrode lines (Y1, ..., Yn), the address electrode lines A1r, ..., Amr and the blue phosphor according to the red phosphor are applied. The first pulse 400 having the negative voltage Vn is applied to the address electrode lines A1b, ..., Amb according to the address electrode lines A1g, ..., according to the green phosphor. Amg) is applied a second pulse 410 having a negative voltage Vn which is a third voltage. Due to the first pulse 400 and the second pulse 410, the address electrodes A1r, ..., Amr corresponding to the red phosphor and the address electrodes A1b, ..., Amb corresponding to the blue phosphor In the vicinity of the address electrodes A1g, ..., Amg corresponding to the green phosphor, a sufficient amount of positive charges for performing the address discharge are equally accumulated. The first pulse 400 and the second pulse 410 will be described later with reference to FIG. 5.

In order to select a cell to be turned on in the address period PA, a scan high voltage Vsch, which is a fourth voltage, is first applied to the scan electrode lines Y1,..., And Yn. A scanning pulse having a scan low voltage Vscl of 5 voltages is applied. Address electrode lines A1r, ..., Amr corresponding to the red phosphor, address electrode lines A1b, ..., Amb corresponding to the blue phosphor, and address electrode lines A1g, ... corresponding to the green phosphor. To Amg, a display data signal having an address voltage Va as the sixth voltage is applied in accordance with the scan pulse. The second voltage Vb is continuously applied to the sustain electrode lines X1,..., Xn. The address discharge is performed by the sixth voltage Va, the fifth voltage Vscl, the negative charge near the scan electrode Y and the positive charge near the address electrode, and in the reset period PR, Similarly in the vicinity of the address electrodes A1r, ..., Amr, the address electrodes A1b, ..., Amb corresponding to the blue phosphor and the address electrodes A1g, ..., Amg corresponding to the green phosphor By the positive charges accumulated sufficiently, the address discharge can be easily performed.

After the address discharge is performed, positive charges are accumulated near the scan electrode Y, and negative charges are accumulated near the sustain electrode X.

In the sustain discharge period PS, the scan electrode lines Y1, ..., Yn and the sustain electrode lines X1, ..., Xn have a first voltage Vs and a ground voltage Vg. Retention pulses are applied alternately. In detail, the first voltage Vs is applied to the scan electrode Y and the ground voltage Vg is applied to the sustain electrode X at the beginning of the sustain discharge period PS. Positive charges accumulated on the scan electrode Y, negative charges accumulated on the sustain electrode Y, and ground applied to the first voltage Vs and the sustain electrode X applied to the scan electrode Y in the address period PA. The discharge is started by the voltage Vg, and the first sustain discharge is performed. Negative charges are accumulated on the scan electrode Y, and positive charges are accumulated on the sustain electrode X by the sustain discharge.

Next, the ground voltage Vg is applied to the scan electrode Y, and the first voltage Vs is applied to the sustain electrode X. The negative charge accumulated on the scan electrode Y, the positive charge accumulated on the sustain electrode X, the ground voltage Vg applied to the scan electrode Y, and the sustain electrode due to the first sustain discharge generated at the beginning of the sustain period PS. The discharge is started by the first voltage Vs applied to (X), and the second sustain discharge is performed. Positive charges are accumulated on the scan electrode Y by the second sustain discharge, and negative charges are accumulated on the sustain electrode X.

Next, the first voltage Vs is applied to the scan electrode Y, and the ground voltage Vg is applied to the sustain electrode X. In this way, the sustain pulse is continuously applied alternately, such that the discharge phenomenon such as the first sustain discharge and the second sustain discharge is continued.

FIG. 5 is a timing diagram for describing in detail a driving signal applied to the sustain electrode and the address electrode in the reset period among the driving signals of FIG. 4.

This will be described with reference to FIGS. 4 and 5. In the driving method of the plasma display panel of the present invention, while the rising ramp signal is applied to the scan electrode lines (Y1, ..., Yn) during the reset period PR, that is, during the time from time t1 to time t2, A first pulse having a negative voltage Vn as a third voltage at the address electrodes A1r, ..., Amr corresponding to the red phosphor and the address electrodes A1b, ..., Amb according to the blue phosphor 400, and a second pulse 410 having a third voltage Vn is applied to the address electrodes A1g,..., Amg according to the green phosphor. The application of the first pulse 400 and the second pulse 410 having the third voltage Vn accumulates a sufficient amount of positive charge in the address electrodes in the reset period PR, and thus in the address period PA. This is for the address discharge to occur easily. However, the first pulse 40 is applied to the address electrodes A1r, ..., Amr corresponding to the red phosphor and the address electrodes A1b, ..., Amb corresponding to the blue phosphor, and separately, the green phosphor The application of the second pulse 410 to the address electrodes A1g, ..., Amg according to the characteristics of the phosphor.

Specifically, among the phosphors applied on the address electrode, a red phosphor (for example, (Y, Gd) BO3: Eu) commonly employed has a positively charged anode and has a blue phosphor (for example , BaMgAl10O17: Eu has a weak positive charge property, whereas a green phosphor (for example, Zn2SiO4: Mn) has a negative charge property. Therefore, when the same pulse having the third voltage Vn is applied to all of the address electrode lines, a relatively large amount of positive charges are accumulated in the address electrode lines A1r, ..., Amr corresponding to the red phosphor, and the green phosphor According to the address electrode lines A1g, ..., Amg, relatively less positive charge is accumulated.

In order to prevent this, it is preferable that the first pulse 400 is applied earlier in time than the second pulse 410. The period in which the first pulse 400 and the second pulse 410 are applied is a period in which a rising ramp function is applied to the scan electrode, and negative charges gradually accumulate in the scan electrode Y, and thus positive charges are gradually generated in the discharge space. It will increase. Therefore, if the first pulse 400 is applied first, the positive charge accumulates when the positive charge in the discharge space is relatively low, and if the second pulse 410 is applied later, the positive charge is discharged when the positive charge in the discharge space is relatively high. Accumulate. As a result, the address electrodes A1r, ..., Amr corresponding to the red phosphor, the address electrodes A1b, ..., Amb corresponding to the blue phosphor, and the address electrodes A1g, ..., corresponding to the green phosphor Amg) can all accumulate the same amount of positive charge.

Meanwhile, the first pulse 400 may be applied from the time when the rising ramp signal application starts, and the second pulse 410 may be applied until the time when the rising ramp signal application ends.

In addition, the pulse width PW1 of the first pulse may be greater than the pulse width PW2 of the second pulse.

According to the respective characteristics of the red, blue, and green phosphors, address electrodes A1r, ..., Amr corresponding to the red phosphor, address electrodes A1b, ..., Amb corresponding to the blue phosphor, and green phosphors The conditions for equalizing the positive charges accumulated on the address electrodes A1g, ..., Amg will be described below.

If the time from the time t1 to the time t2 is 100us, the first pulse 400 may be applied at time t1 and applied until time t1a, that is, from 0us to 70us, and the second pulse 410 may be applied at time t2a. At time t2, ie from 30us to 100us. That is, the pulse width PW1 of the first pulse may be greater than the pulse width PW2 of the second pulse. Under these conditions, the address electrodes A1r, ..., Amr corresponding to the red phosphor, the address electrodes A1b, ..., Amb corresponding to the blue phosphor, and the address electrodes A1g,... Experiments confirm that the positive charges accumulated in.

Meanwhile, the plasma display panel driving method according to the present invention described above may be embodied as computer readable codes on a computer readable recording medium. Computer-readable recording media include any type of recording device that stores programs or data that can be read by a computer system. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, hard disk, floppy disk, flash memory, optical data storage, and the like. Here, the program stored in the recording medium refers to a series of instruction instructions used directly or indirectly in an apparatus having an information processing capability such as a computer to obtain a specific result. Therefore, the term computer is used to mean all devices having information processing capability for performing a specific function by a program including a memory, an input / output device, and an arithmetic device despite the fact that the name is actually used. Even in the case of a device for driving a panel, its use is limited to a specific field of panel driving, and in reality, it is a kind of computer.

In particular, the plasma display panel driving method according to the present invention is an integrated circuit, for example, FPGA (Field Programmable Gate), which is created on a computer by a schematic or ultra high-speed integrated circuit hardware description language (VHDL) or the like and connected to a computer. Array). The recording medium includes such a programmable integrated circuit.

The best embodiments have been disclosed in the drawings and specification above. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the meaning or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

According to the present invention as described above, the following effects can be obtained.

First, while the rising ramp function is applied to the scan electrode, a first pulse having a negative voltage on the address electrode lines according to the red phosphor and the blue phosphor is applied, and a second pulse applied to the address electrode lines according to the green phosphor. It is applied earlier to allow the same amount of positive charge to accumulate in the address electrode lines regardless of the phosphor characteristics.

Second, the same amount of positive charges are sufficiently accumulated, so that overdischarge in the red phosphor does not occur in the address period, and address discharge is stably and easily performed.                     

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (6)

For a plasma display panel including address electrode lines corresponding to red, green and blue phosphors, and scan electrode lines and sustain electrode lines intersecting the address electrode lines, a plurality of sub-frames for time division gray scale display A method of driving a plasma display panel divided into fields, and wherein reset, address, and sustain discharge steps are performed in each of the subfields, In the reset step, after the rising ramp signal is applied at the first voltage to the scan electrode lines, the falling ramp signal is applied at the first voltage, While the falling ramp signal is applied, a second voltage is applied to the sustain electrode lines, While the rising ramp signal is applied, a first pulse having a negative third voltage is applied to address electrode lines corresponding to red and blue phosphors among the address electrode lines, and to a green phosphor among the address electrode lines. And a second pulse having the third voltage is applied to the address electrode lines. The method of claim 1, In the address step, a scan voltage having a fifth voltage is sequentially applied while a fourth voltage is applied to the scan electrode lines, and a display data signal having a sixth voltage according to the scan pulse to the address electrode lines. Is authorized, And in the sustain discharge step, sustain pulses having the first voltage and the ground voltage are alternately applied to the scan electrode lines and the sustain electrode lines. The method of claim 1, And the first pulse is applied in time before the second pulse. The method of claim 3, wherein And the first pulse is applied from the start of the rising ramp signal application and the second pulse is applied from the start of the rising ramp signal application to the end point. The method of claim 4, wherein And the pulse width of the first pulse is greater than the pulse width of the second pulse. A recording medium having recorded thereon a program for executing the method of any one of claims 1 to 5 on a computer.

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