KR20010023638A - A driving method of a plasma display panel of alternating current for creation of gray level gradtions - Google Patents

Abstract

PURPOSE: A method for driving an alternating current plasma displaying panel is provided to improve the brightness and the contrast and to remove the pause period according to the materialization of an image frame and to supply the stability of driving. CONSTITUTION: The method for driving an alternating current plasma displaying panel includes a few stages. In the first stage the sustain pulse of the positive electrode is applied on all the second display electrodes. In the second stage the sustain pulse of the positive electrode is applied on all the first display electrodes. In the third stage the sustain pulse of the positive electrode is applied on all the second display electrodes and the entry pulse of the negative electrode is applied on the selected scan electrode. In the fourth stage the sustain pulse is applied on all the scan electrodes. In the fifth stage the voltage level applied to all the second display electrodes and all the scan electrodes is decided not to exceed the amplitude of the sustain pulse and the scan pulse of the negative electrode selected in the sustain period and the addressing pulse of the positive electrode appears on the data electrode according to the information.

Description

AC type plasma display panel driving method {A DRIVING METHOD OF A PLASMA DISPLAY PANEL OF ALTERNATING CURRENT FOR CREATION OF GRAY LEVEL GRADTIONS}

Plasma Display Panel is a device that displays letters or graphics by using light from plasma generated during gas discharge. It is divided into direct current type or alternating current type by electric field or driving method applied from outside to make plasma. do.

Since the plasma display panel has advantages over other flat panel devices such as being larger in size, more than 40 inches in color, and having a wide viewing angle, multimedia that combines the functions of next-generation high-definition wall television (TV), television, and personal computer (PC) It is considered to be a potent display device.

There are various driving methods for the AC plasma display panel. First, the technology of Fujitsu Co., Ltd., which is patented in the United States, namely, ADS (Address Display Period Separated) subfield according to US Patent No. 5,541,618. The (sub-field) method is described as follows.

According to US Pat. No. 5,541,618, one image frame is divided into n subframes, each subframe having a single addressing period for sequentially applying scan pulses to all scan electrodes in order to specify cells to be displayed in advance. And has a predetermined number of sustain pulses for each given subframe, and has a single display period for applying sustain pulses simultaneously to all scan electrodes.

In this way, scan pulses are successively applied to all the scan electrodes and address pulses on the data electrodes are applied according to the information to be displayed.

However, according to the ADS subfield method according to the U.S. Patent Application No. 5,541,618, since each subframe within an image frame must have an address period, the display period is relatively shortened and the brightness of the image is reduced.

For example, in order to prevent feeling flicker on the screen, the light emission control time of one frame should be limited to 1 / 6-sec, that is, 16.67 ms. In the case of NTSC with 480 scan lines, when one image frame is divided into eight subframes, the time required for the addressing operation in one image frame is approximately 11 to 12 msec. Since only about 5 to 6 msec of remaining time is possible, only about 30% can be utilized, which reduces the brightness of the image. However, in order to compensate for the decrease in brightness of the image, the frequency of the sustain pulse is increased, which leads to an increase in power consumption and relatively low driving stability.

Moreover, in the case of an HDTV having 1,024 scan lines, the time required for the addressing operation in one image frame is approximately 24 to 25 msec, and there is a problem that there is practically no time for the viewer to see the screen. . In addition, since the pixels corresponding to the scan electrodes are continuously selected during the addressing period, the driving stability is also reduced as a result of the static delay effect at the start of discharge.

In addition, another AC type plasma display panel driving method is proposed in " SID 95 DIGEST p.807-810 " (Drive for 40-in.-Diagonal Full-Color ac Plasma Display). The image frame is divided into n subframes, each subframe having a single display period having a predetermined number of sustain pulses for each given subframe for all scan electrodes, and the initial discharge corresponding to the electrode group to be scanned. There is a single addressing period that is performed simultaneously on the pixels, so that the scan pulses are successively formed on all the scan electrodes of this group, so that the initial discharge and scan pulse formation are similar for the other scan electrodes. Is done.

The problem of the method disclosed in "SID 95 DIGEST p.807-810" is that since each subframe has an addressing period for all scan electrodes, the time for holding the image frame is relatively reduced and the brightness of the image is reduced. do. In this case, increasing the frequency of the sustain pulse partially compensates for the decrease in brightness not only increases power consumption but also lowers drive reliability.

Another method for displaying the gradation of an image is disclosed in US Patent Application No. 3,906,290 by Koichiro K. et al. The image gradation display method can be achieved by two methods, one of which makes the average luminance of pixels or light emitting points proportional to the turn-on period, and the other of which is the frequency of the sustain voltage. To be proportional to Herein, embodiments are disclosed that include one or both of the above two principles for gray scale display.

This driving method (i.e., U.S. Patent Application No. 3906290) has a problem of deterioration of image clarity and brightness. In order to obtain a good quality image, the number of subelements in a pixel must be larger and their luminance must be set essentially differently.

Further, according to US Patent Application No. 3,906,290, one image frame is divided into n subframes, each subframe having a plurality of preset maintenance periods for each given subframe. Here, a scan pulse to be formed is selected for the scan electrode, and an address pulse is selected for the data electrode according to the information to be displayed.

Therefore, in order to realize this in the AC plasma drive panel driving means, it is necessary to equip the logic input side of the scan pulse driver with a plurality of multi-discharge shift registers with complex logic circuit connections at their outputs, and drive stability is deteriorated. The cost of the device rises.

On the other hand, as another AC type plasma display panel driving method, there is a driving method developed by Japan NEC Corporation (see EP No. 0,488,326A2). According to this method, one field representing one frame is divided into n subfields, the second to last subfields have the same time T's, and the first subfield is twice as large as the other subfields. 2T's, and the subfields have different light emission times T ', T' / 2, T '/ 4, T' / 8, ...

According to this method, the efficiency of the image frame is approximately 78.8%, but the light emission time is relatively small in some subfields, and all the pixels corresponding to the scan electrodes in those subfields are in the " off " Therefore, the brightness of the image is reduced.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to plasma technology, and more particularly, to a method of driving an AC plasma display panel for gray scale display, which can be used in a display system such as a TV plasma video module composed of an AC plasma display panel.

1 is a view showing the structure and driving apparatus of a 4-electrode surface discharge AC plasma display panel;

FIG. 2 is a block diagram showing the structure of a control microcircuit for forming scan pulses employed in the scan electrode driver shown in FIG. 1;

3 is a timing diagram of image frame division by subframes according to the driving method of the present invention;

4 is a timing diagram of voltage pulses on electrodes of a plasma display panel according to a driving method of the present invention;

5A is a diagram showing an electrode arrangement of a three-electrode surface discharge type AC plasma display panel;

5B is a cross-sectional view taken along the line I-I of the three-electrode surface discharge type AC plasma display panel;

6A is a diagram illustrating an electrode arrangement of a two-electrode opposing alternating current plasma display panel;

6B is a cross-sectional view taken along the line II-II of the two-electrode opposing alternating current plasma display panel;

7 is a block diagram showing a driving device of an AC plasma display panel according to the present invention;

8A is a timing diagram for the selective erasing method of the driving method of the present invention;

8B is a timing diagram for the selective writing method of the driving method of the present invention;

8C is a timing diagram showing a continuous sustain pulse according to the driving method of the present invention;

9A and 9B are timing diagrams illustrating another embodiment of the present invention.

Accordingly, an object of the present invention is to provide an AC plasma display panel driving method which provides high definition, high brightness and improved stability of an image of an AC plasma display panel by eliminating the problems of the conventional driving method described above. .

One embodiment of the present invention for achieving the above object is as follows. A plurality of display lines comprising a pair of substrates spaced apart from each other, display electrodes and scan electrodes arranged in parallel on a substrate, and a scan electrode and one or more display electrodes. A plurality of data electrodes arranged in a direction transverse across the plurality of display lines on another substrate, the dielectric layer covering the previous display electrodes and the scan electrodes, and at the intersection of the display lines and the data electrodes. A method of driving a plasma display panel comprising a plurality of pixels to be formed, barrier ribs formed on at least one substrate of a front two substrates and partitioning a plurality of front pixels, and a gas filled in a space between the front two substrates. ,

a) dividing one image frame into n subframes, before each subframe is assigned a specific number of sustain pulses;

b) first select the same number of display lines as the total number of subframes to be divided beforehand, assign a unique subframe to each of the previously selected display lines, and scan with different phases to the scan electrodes of the selected display lines In addition to applying pulses, addressing pulses are applied to the data electrode to specify pixels to be displayed, and a predetermined number of sustain pulses of a previously allocated subframe are alternately applied to a display electrode commonly connected to a previously selected scan electrode. Indicate each subframe allocated for the display lines;

c) shifting one display line or two or more display lines with each of the previously selected display lines as a starting point; And

d) shifting the operation of selecting display lines equal to the number of divided subframes to display unique subframes for the selected display lines until each unique subframe is displayed for all display lines. And repeating the assigned subframe display for the selected display line of step b), there is provided a method of driving an alternating plasma display panel comprising the steps of displaying an image frame.

In addition, another embodiment of the present invention is as follows. One image is divided into n subframes, and sustain pulses are pre-assigned to each subframe, and scan pulses are applied to the selected scan electrodes in each subframe, and display the cells designated by the upper scan pulses. A method of driving an AC plasma display panel for gradation display in which a sustain pulse pre-allocated to a display electrode is applied to the display electrode and an addressing pulse is applied to the data electrode according to the display information. An AC plasma display panel driving method is provided, wherein the total number R of sustain pulses in the two subframes is determined according to the following equation.

R≥2S / (n + 2)

Where S is the total number of sustain pulses in the image frame, the value of the sustain pulses in the subframe is odd, and n is the number of divided subframes.

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

1 shows the structure of an AC plasma display panel driving apparatus for gray scale display according to the present invention. In this figure, each pixel 5 includes a first display electrode 6 and a second display electrode 7 arranged in parallel with each other, a scan electrode 8 positioned adjacent thereto, and the first and the first electrodes It consists of two display electrodes 6 and 7 and a data electrode 9 crossing the scan electrode 8. The first and second display electrodes 6 and 7 and the scan electrode 8 are disposed under the front glass plate 10 and covered by the dielectric layer 11. The data electrode 9 is arranged between the dielectric partitions 13 on the rear glass plate 12 in a direction orthogonal to the first and second display electrodes arranged on the front glass plate 10 and is red (R) and green. (G) and blue (B) light emitting phosphors 14 are covered. The dielectric barrier rib 13 has a stripe shape or a lattice shape, and pixels are formed at intersections of the first and second display electrodes and the data electrode. For example, a mixed gas of Ne, He, and Xe is filled and sealed between the front glass plate 10 and the rear glass plate 12. In this panel, one display line is composed of first and second display electrodes and scan electrodes. Here, the pitch of the pixels is set to 1.05 mm, for example.

The data electrodes 9 are connected to a data driver 15 which generates an anode addressing pulse on the data electrode 9 according to the information to be displayed within a given sustain period. The scan electrodes 8 are connected to a scan electrode driver 16 which provides a scan pulse on all selected scan electrodes 8 within a given sustain period. All the first and second display electrodes 6 and 7 are connected to a sustain pulse generator 17 which is integrated into two groups to form a sustain pulse for each subframe.

7 shows a block diagram of an apparatus for driving a plasma display panel. The driving device includes a scan driver 16 that sequentially provides scan pulses to the scan electrodes, and an upper and lower X-electrode drivers 15-1 and 15-2 that provide addressing pulses according to information to be displayed on the data electrodes. ), Sustain drivers 17-1 and 17-2 for alternately providing sustain pulses to the display electrodes, and a controller 18 for controlling the pulse signal timing of all the drive drivers.

Fig. 2 is a block diagram showing the structure of a control microcircuit for forming scan pulses employed in the scan driver 16 shown in Figs. 1 and 7, wherein the output of the control microcircuit is the output terminal of the scan driver 16 ( Corresponding to Y1, Y2, Y3 ...). The control microcircuit shown in the figure may use NPD's µPD16305, a 40-step shift register having a CLK input stage to which a clock pulse is input and an input stage of D data for writing input information shifted later by the clock pulse. (1) is provided. The information output from the output of the shift register 1 is written into the register-latch 2 by a pulse input from the STB input terminal. The information output from the output end of the register-latch 2 is supplied to the first input end of the simultaneous circuit 3, which has a second input end to which a blank pulse is input, that is, a BLK input end. The output information of the register-latch 2 input to the first input terminal and the blank pulse input to the first input are combined by the simultaneous circuit 3, and the combined information is an output driver for forming a scan pulse at the outputs Q1 to Q40. Provided in (4).

Now, the driving principle of the present invention through the above-described devices will be described below. An AC-PDP driving method for gray scale display comprises: dividing an image frame into "n" subframes; A predetermined holding period is set for each given subframe; A scan pulse is applied to the selected scan electrodes in a given subframe, and an address pulse is applied to the data electrodes according to the information to be displayed. Further, the total number R of sustain periods of two subframes adjacent to each other among successive subframes is set to satisfy the following condition.

R≥2S / (n + 2)

Here, S is the total number of holding periods of one image frame, and the number of holding periods in any subframe is set to an odd number.

Scan pulses on the scan electrodes are formed by control microcircuits each having an " γ " output. In each given sustain period, scan pulses are formed at only one of the outputs of the control microcircuit. The value "γ" is determined from the condition of?? R / 2. Scan electrodes of the same name (even or odd) are separated and connected to one control microcircuit.

It is odd to set the number (R) of the sustain periods of two adjacent subframes among consecutive subframes by the formula R≥2S / (n + 2), and to set the number of the sustain periods in any subframe to an odd number. It is possible to select at least R of the number of scan pulses separated by and even, and to use a control microcircuit having a large number of outputs "γ" and to provide improved driving reliability.

The formation of scan pulses on only one of the outputs of the control microcircuit in each given sustain period enables the selection of all scan electrodes without changing the data written to the registers of the control microcircuit in this period, and the data in the registers. It is possible to reduce the write ratio and improve driving reliability.

3 is a timing diagram of image frame division by subframes employed in the driving method of the present invention, in which one image frame is divided into n subframes (six in the figure), and is maintained for each given subframe. The predetermined number of periods is set as "S".

The total number of scan electrodes of the plasma display panel PDP is equal to N, and generally S ≧ N must be satisfied. Sloping lines in an amount equal to the number of subframes represent the number of scan electrodes to be selected in each given sustain period.

For example, six scan electrodes A, B, C, D, E, and F are selected for the sustain period coinciding with I. In that dwell period, these numbers increase until the N value is reached, and when the N value is reached, each slope line is followed by a subsequent subframe (ie, next time) as shown by the arrow for one of the slope lines. The first scan electrode of the first subframe of the image frame starts again. At the scan electrode selection time, the state change of all pixels with respect to this electrode is made according to the information to be displayed, that is, whether a given pixel is in an "ON" or "OFF" state in a given subframe.

The selection of the pixel state is made by the formation of the scan pulse on the selected scan electrode and the addressing pulse on the selected data electrode, after which the predetermined pixel state is maintained by the sustain pulse until the next selection of the same scan electrode.

According to an embodiment of the present invention, the order of subframe alternating (interlacing) is set so that one subframe follows another subframe in one image frame. For example, in the first and second subframes of a given image frame or in the sixth subframe of a given frame and the first subframe of the next image frame, the total number of sustain periods (R) is the experimental ratio R≥2S / (n + 2) It is set more than a preset value selected from.

The items of R for the values of S and n are shown in Table 1 below.

<Table 1>

S 480 576 n 6 8 10 6 8 10 R 120 96 80 144 115 96

Considering that an odd maintenance period is set in each subframe according to an embodiment of the present invention, when S = 480 and n = 10 For example, the order of the pulse numbers in a subframe is as follows.

87, 3, 87, 5, 87, 9, 87, 17, 65, 33

This order makes it possible to form 252 gradations of luminance.

The even and odd scan electrodes are separately connected to different scan drivers, and the sum of the sustain pulses of adjacent subframes should be set not to be less than 82, and thus the scan pulses by the use of a control microcircuit with 40 outputs. Can be formed, and as shown in Fig. 3, the efficiency of displaying one image frame can be 100%.

The application of voltage pulses on the plasma display panel electrodes in each sustain period is made according to the timing diagram shown in FIG. In FIG. 4, reference numeral U _s1 denotes a voltage value of a sustain pulse applied to the first display electrode 6, U _s2 denotes a voltage value of a sustain pulse applied to the second display electrode 7, and U _y is a scan. The voltage value of the scan pulse applied to the electrode 8 is shown. In addition, reference numerals U _yA , U _yB ,... U _yF denote voltage values of scan pulses generated from electrodes selected from among scan electrodes (that is, electrodes located at A, B, ... F in FIG. 3). , U _x represents the voltage value of the pulse applied to the data electrode 9.

In step 1, the sustain pulse 18 is applied on all the second display electrodes 7, and in step 2 the sustain pulse 19 is applied on all the first display electrodes 6. Next, in step 3, the bipolar sustaining pulse 20 is applied on all the second display electrodes 7 and at the same time all the scan electrodes selected within the given period (e.g., A, B in Fig. 3). A negative scan pulse 21 from the scan electrode driver 16 is applied on the electrode 8 located at F. In step 4, sustain pulses 22 are applied to all scan electrodes. In step 5, a bipolar voltage 23 of a constant level is applied on all the second display electrodes 7, and at the same time, a voltage 24 having an amplitude which does not exceed the amplitude of the sustain pulse 22 on all the scan electrodes. ) Is applied, and the scan pulses 25 on the scan electrodes selected in step 3 (that is, the electrodes located at A, B, ... F in FIG. 3) are sequentially applied, and the data electrodes ( An addressing pulse 26 is applied on 9).

On the other hand, in steps 1, 2 and 3, the bipolar voltage 27 having the same level as the amplitude of the addressing pulse 26 is applied on all the data electrodes 9, and in step 4, the amplitude of the addressing pulse 26 is not exceeded. A bipolar voltage 28 with a level that is not applied is applied.

What has been described so far is the driving method of the present invention for a four-electrode surface discharge type AC plasma display panel. The present invention can be applied to a three-electrode surface discharge AC plasma display panel.

5A and 5B show the structure of a three-electrode surface discharge type AC plasma display panel. The three-electrode surface discharge AC plasma display panel has the same structure except for the second display electrode 7 in the four-electrode surface discharge AC plasma display panel shown in FIG. The three-electrode surface discharge AC plasma display panel includes a plurality of display lines including one scan electrode and one display electrode, and the scan electrodes 8 are connected to the scan electrode driver 16 that provides the scan pulse. The display electrodes 6 are connected in common and connected to the sustain driver 17. Therefore, a scan pulse is applied from the scan driver 16 to the scan electrodes to specify the pixels to be displayed according to the display information, and the display electrodes commonly connected from the sustain driver 17 to display the specified pixels. And a sustain pulse is alternately applied to the scan electrodes.

Referring to the driving method of the three-electrode surface discharge AC-PDP according to the present invention. First, one image frame is divided into a plurality of subframes, for example, six subframes, and each subframe has a unique holding period, that is, a specific number of holding pulses, for grayscale display. Next, after selecting six display lines equal to the number of divided subframes among the plurality of display lines, the divided subframes are allocated to the respective display lines. Each of the scan electrodes constituting the selected display line is applied with a negative polarity writing pulse below the reference voltage as shown in FIGS. 8A and 8B, and a predetermined level of positive (+) is applied to the commonly connected display electrodes. The polarity write pulse is applied to display all selected display lines. In the selective erasing method as shown in FIG. 8A, in the selective writing method as shown in FIG. 8B, after a predetermined width erase pulse is applied to all of the selected scan electrodes before scanning, pixels to be displayed according to data pulses applied to the data electrodes Scan pulses A ·· F of different phases are applied to each of the selected scan electrodes Y _{A ..} Y _F to designate them, and at the same time, addressing pulses are applied to the data electrodes X according to the display information. Are applied. Next, the sustain pulses of the assigned unique subframe of each display line are commonly connected to display the selected pixel, and are alternately applied to the display electrode and the scan electrode. Subsequently, the selected display lines are shifted by one line or two lines or more by starting points, and the display lines are selected and scanned and displayed by the number of subframes. This shifted scanning and display operation is repeated to display the image frame until all the unique subframes are displayed for all the display lines.

9A and 9B show another embodiment of the present invention. That is, the width of the front write pulse for displaying all the selected display lines is made relatively narrower than the distance between the adjacent sustain pulse and the sustain pulse, and the voltage level applied to the scan electrode in the scan step is lower than the voltage level of the sustain pulse. It is possible to apply a constant bipolar voltage level to the display electrodes. As a result, it is possible to lower the discharge voltage and the erase voltage at the time of erasing, and to prevent the discharge erasing error or the occurrence of a writing error.

As described above, in the embodiment of the present invention, the sustain pulse of 140 to 170V, the addressing pulse of 80 to 100V, and the sustain period of 32 ms are set, and 252 gradations can be expressed with a luminance of 260 cd / sq.m. However, if the number of subframes to be divided is increased, not only NTSC but also HDTV can be implemented. In addition, by designating different scan points for each subframe, all the subframes simultaneously scan a plurality of scan electrodes from the corresponding scan point, thereby eliminating an idle period due to the implementation of one image frame, and improving driving stability. There is an advantage that the brightness and contrast are increased.

Claims (21)

The image frame is divided into n subframes, each subframe having an amount of sustain period set in each given subframe, in which the scan pulse is applied on the selected scan electrode and the addressing pulse is displayed. A method of driving an AC plasma display panel for gradation display applied on a data electrode according to information, The number R of sustaining pulses in two adjacent subframes of the consecutive subframes is R≥2S / (n + 2), where S is the total value of the sustaining pulses in one image frame, And a period value is set to a ratio of odd number). The method of claim 1, The scan pulses on the scan electrode are formed by control microcircuits each having a " [gamma] " output, the control microcircuits having a shift register for data input, the holding pulse of the scan in each given period being the control microcircuits And the "? &Quot; value is determined from a condition of?? R / 2, wherein the &quot;? &Quot; The method according to claim 1 or 2, Each pixel includes a first display electrode and a second display electrode arranged in parallel, scan electrodes adjacent to the first and second display electrodes, and data electrodes orthogonal to the first and second display electrodes and the scan electrodes. In the plasma display panel provided with each other, the voltage pulse in each sustain period is a first step of applying a sustain pulse of the anode to all the second display electrodes, and a second step of applying a sustain pulse of the anode to all the first display electrodes. And a third step of applying the sustain pulses of the anode on all the second display electrodes and simultaneously applying the write pulses of the cathode on the selected scan electrodes, and a fourth step of applying the sustain pulses on all the scan electrodes; The voltage level applied to the display electrode and all the scan electrodes is determined so as not to exceed the sustain pulse amplitude, and the scan pulses of the selected cathode are sequentially formed on the scan electrodes within a given sustain period. Is formed by the procedure of step 5 may appear according to the addressing pulse of the positive electrode is no information on the data electrode, In the first, second, and third steps, voltage levels on all data electrodes are set to the same voltage level as the amplitude of the addressing pulse, and in the fourth step, the voltage level is a voltage level that does not exceed the amplitude of the addressing pulse. AC type plasma display panel driving method for gray scale display. The method of claim 3, wherein And a scan pulse applied to the selected scan electrode is a negative pulse, and the voltage level on the data electrode does not exceed the amplitude of the addressing pulse. The method of claim 2, A method of driving an AC plasma display panel for gray scale display, wherein odd-numbered scan electrodes are connected to odd-numbered scan electrodes and even-numbered scan electrodes are connected to control microcircuits in the same subframe. A plurality of display lines comprising a pair of substrates spaced apart from each other, display electrodes and scan electrodes arranged in parallel on a substrate, a plurality of display electrodes, and one or more display electrodes. A dielectric layer covering the previous display electrodes and the scan electrodes and a plurality of data electrodes arranged on a different substrate in a direction crossing the plurality of display lines, and formed at the intersection of the display lines and the data electrodes A method of driving a plasma display panel comprising: a plurality of pixels to be formed, barrier ribs formed on at least one substrate of a front two substrates and partitioning a plurality of front pixels, and a gas filled in a space between the front two substrates; a) dividing one image frame into n subframes, before each subframe is assigned a specific number of sustain pulses; b) first select the same number of display lines as the total number of subframes to be divided beforehand, assign a unique subframe to each of the previously selected display lines, and scan with different phases to the scan electrodes of the selected display lines The pixels to be displayed by applying addressing pulses to the data electrodes are simultaneously applied, and a predetermined number of sustain pulses of the previously allocated subframe are alternately applied to the display electrodes commonly connected to the previously selected scan electrodes. Indicate each subframe allocated for the display lines; c) shifting one display line or two or more display lines with each of the previously selected display lines as a starting point; And d) selecting display lines equal to the number of divided subframes to display unique subframes for the selected display lines, and shifting of step c) until each unique subframe is displayed for all display lines. And displaying the image frame by repeating the assigned subframe display for the selected display line of step b). The method of claim 6, A method of driving an AC plasma display panel, wherein different display lines display subframes of other frames while displaying subframes of a corresponding frame for arbitrary selection display lines. The method according to claim 6 and 7, A driving method of an alternating current plasma display panel, wherein the total number R of sustain pulses of two adjacent arbitrary subframes satisfies the following equation. R≥2S / (n + 2), Where R is the total number of sustain pulses in two adjacent random subframes, S: total number of sustain pulses in one image frame, n: number of subframes The method according to any one of claims 6 to 8, And the scan pulses applied to the scan electrodes of the selected display line are present in one sustain pulse. A pair of substrates spaced apart from each other, scan electrodes arranged in parallel on a previous substrate, a plurality of data electrodes arranged in a direction traversing a plurality of scan electrodes on a front substrate or another substrate For example, a plurality of pixels formed at an intersection point of the scan electrodes and the data electrodes, partition walls formed on at least one substrate of the previous two substrates and partitioning the previous plurality of pixels, and filled in the space between the previous two substrates. In the driving method of a plasma display panel containing a gas, a) dividing one image frame into n subframes, before each subframe is assigned a specific number of sustain pulses; b) First select the same number of scan electrodes as the total number of subframes to be divided beforehand, assign a unique subframe for each of the previously selected scan electrodes, and assign different scan electrodes to the selected scan electrodes to specify the pixels to be displayed. Apply scan pulses having a phase and alternately apply a specific number of sustain pulses of the previously allocated subframe to the previously selected scan electrode and the data electrode to display each subframe allocated for the selected display lines; c) continually shift each of the previously selected scan electrodes by starting point, by one scan electrode or by two or more scan lines; d) displaying one image frame by repeating the shift of step c) and the display of the assigned subframe for the selected display line of step b) until each unique subframe is displayed for all scan electrodes; A method of driving an AC plasma display panel comprising steps. The method of claim 10, While displaying a subframe of a corresponding frame for any selected scan electrodes, different scan electrodes display subframes of another frame, wherein the phases of the scan pulses applied to the respective scan electrodes are different from each other. A method of driving an alternating current plasma display panel. The method according to claim 10 and 11, A driving method of an alternating current plasma display panel, wherein the total number R of sustain pulses of two adjacent arbitrary subframes satisfies the following equation. R≥2S / (n + 2), Where R is the total number of sustain pulses in two adjacent random subframes, S: total number of sustain pulses in one image frame, n: number of subframes The method according to any one of claims 10 to 12, And a scan pulse applied to the selected scan electrodes is present within one sustain pulse period. A pair of substrates spaced apart from each other, scan electrodes and display electrodes arranged in parallel on the previous one substrate, a plurality of display lines consisting of the previous one scan electrode and the display electrodes, the front display electrodes And a dielectric layer covering the scan electrodes and the plurality of data electrodes, a plurality of data electrodes arranged in a direction crossing the plurality of display lines on another substrate, and a plurality of pixels formed at intersections of the display lines and the data electrodes. For example, a method of driving a plasma display panel comprising a partition wall formed on at least one substrate of a front two substrates and partitioning a plurality of front pixels, and a gas filled in a space between the front two substrates. a) dividing one image frame into n subframes, each subframe having a predetermined number of sustain pulses; b) first select the same number of display lines as the total number of subframes to be divided beforehand, assign a unique subframe to each of the previously selected display lines, apply a negative write pulse to all selected scan electrodes, Simultaneously applying bipolar sustain pulses to the common connected display electrodes to write all the selected display lines, and apply the bipolar sustain pulses on the scan electrodes of the selected display lines; After sequentially applying negative scan pulses having different phases to the scan electrodes of the selected display line and simultaneously applying the positive addressing pulses according to the display information to the data electrodes, the pixels to be displayed are designated beforehand. A predetermined number of sustain pulses are alternately applied to the previously selected scan electrodes and the common connection display electrodes to display subframes allocated for the previously selected display lines; c) continually shift each of the first selected display lines as a starting point, one display line or two or more display lines; d) displaying one image frame by repeating the shift of step c) and the display of the assigned subframe for the selected display line of step b) until each unique subframe is displayed for all display lines. A method of driving an AC plasma display panel comprising a. The method of claim 14, and the width of the negative write pulse applied to the scan electrodes selected for the front write in step b) is smaller than the width between adjacent sustain pulses applied to the scan electrodes. The method according to claim 14 or 15, During a period of applying a negative scan pulse to the selected scan electrodes to designate a pixel to be displayed in step b), a voltage of a certain level lower than that of other sustaining pulses is maintained, and at the same time, a constant level of bipolarity is applied to the commonly connected display electrodes. A method of driving an AC plasma display panel, characterized by applying a voltage. The method according to any one of claims 14 to 16, In step b), before applying a scan pulse having a negative polarity having a phase difference on the selected scan electrode of the selected display line, an erase pulse having a predetermined width is applied to erase or turn the cells of the entire selected display line. And turning off the alternating current plasma display panel. The method according to any one of claims 14 to 17, A method of driving an AC plasma display panel, characterized in that the display of the allocated subframe is repeated twice in succession for the selected display line. The method according to any one of claims 14 to 18, The scan pulse on the scan electrode is generated by a control microcircuit having an "γ" output, the control microcircuit comprises a shift register, and in each given holding period, the scan pulse is formed only on one of the outputs of the control microcircuit. AC type plasma display panel driving method characterized in that. The method of claim 19, And the " y " value is determined by the following equation. γ≤R / 2, (γ: number of outputs of control circuit, R: number of sustain pulses) The method of claim 19, wherein A method of driving an AC plasma display panel for gradation display, wherein odd scan electrodes and even scan electrodes are separated and connected to a control microcircuit.