CN1211769C - Drive method of AC plasma display screen in the reset stage - Google Patents
Drive method of AC plasma display screen in the reset stage Download PDFInfo
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- CN1211769C CN1211769C CN 01139329 CN01139329A CN1211769C CN 1211769 C CN1211769 C CN 1211769C CN 01139329 CN01139329 CN 01139329 CN 01139329 A CN01139329 A CN 01139329A CN 1211769 C CN1211769 C CN 1211769C
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Abstract
The present invention relates to a method for driving an alternating current plasma display panel in a resetting time interval. Firstly, first delete pulses which have positive polarity and of which the voltage gradually rises are applied to a first electrode for deleting wall charge in a display unit; simultaneously, first excitation pulses which have negative polarity and of which the voltage gradually falls are applied to the first electrode; second excitation pulses which have positive polarity and of which the voltage gradually rises are applied to a second electrode for exciting plasma gases and forming wall charge again in the display unit; finally, second delete pulses which have positive polarity and of which the voltage gradually rises are applied to the first electrode for deleting the wall charge in the display unit.
Description
Technical field
The invention relates to a kind of plasma display dirving method, particularly relevant for the driving method of a kind of AC plasma display screen at reset stage.
Background technology
In a foreseeable future, people will be along with development raising day by day with the innovation of video picture mode of audio-visual equipment manufacturing technology to the requirement of acousto-optic service.With the display is example, known cathode-ray tube (CRT) (Cathode Ray Tube, CRT) display, the radiation important disadvantages bulky except having, large-sized cathode-ray tube display, screen edge picture displayed also has the problem of serious picture distortion distortion, certainly will can't satisfy in the future people to the requirement of high-quality seeing and hearing enjoyment.When Digital Television start broadcasting after, known faceplate with the analogical pattern video picture will little by little be eliminated.Replace, will be have large scale, wide visual angle, high-res and have the plasma panel that shows full-color (Full Color) image energy force characteristic (PlasmaDisplay Panel, PDP).
Please refer to Fig. 1, Fig. 1 shows the side cutaway view of a display unit 100 in the three electrode AC plasma display screens.In three electrode AC plasma display screens, each display unit all has the electrode of keeping (sustain electrode) X, scan electrode (scan electrode) Y and three electrodes of data electrode (data electrode) A.Front glass substrate 102 has many to keeping electrode X and scan electrode Y, alternately is set in parallel in pairs on the front glass substrate 102 each other.Keep electrode X and scan electrode Y by 104 coverings of dielectric layer (dielectric layer), in order to accumulation wall electric charge (wall charge).104 protective seams that are made of magnesium oxide 106 of dielectric layer cover, and keep electrode X, scan electrode Y and dielectric layer 104 in order to protection.Data electrode A is formed on the back glass substrate 108 relative with front glass substrate 102.Wherein, data electrode A is and keeps electrode X and scan electrode Y is orthogonal.Reinforcing rib (rib) (not shown) is the panel data electrode A, and is formed on the glass substrate 108 of back along the both sides of data electrode A.Data electrode A covers last layer dielectric layer 116, and fluorescent layer 110 is then coated on the dielectric layer 116 and the reinforcing rib both sides.Cavity between protective seam 106 and the fluorescent layer 110 is a discharge space 114, wherein has been full of the ionized gas (discharge gas) that is mixed by neon and xenon.
Have a plurality of display units of arranging with array (matrix) form 100 on the plasma panel.In addition, plasma panel also has driving circuit, in order to drive display unit 100 according to certain driving order (driving sequence).The drive principle of plasma panel is: each display unit 100 can be considered as a capacitive load equivalently on circuit characteristic, and driving circuit is then in order to provide electric current so that this electric capacity is charged.By keep electrode X and the scan electrode Y that are positioned at the electric capacity two ends equivalently display unit is applied the alternating current of high voltagehigh frequency, make gas in the discharge space 114 in the driving process, can continue to be excited ionization and emit ultraviolet light.The fluorescent layer 100 that is covered on data electrode A and the reinforcing rib can send visible light behind the ultraviolet light that absorbs specific wavelength.
Please refer to Fig. 2, Fig. 2 shows the driving sequential chart of known plasma panel.The driver of plasma panel can be divided into following phases usually: reset stage (reset period) T1, addressing period (address period) T2 and keep the period (sustain period) T3.When reset stage T1, for after guaranteeing during addressing period T2, the correctness of display unit operation, keep electrode X and scan electrode Y and export delete pulse (erase pulse) respectively, in order to unnecessary wall electric charge in the deletion display unit, make in the plasma panel, the accumulation state of each display unit mesospore electric charge is all identical.In addressing period T2, then the image data that will show writes corresponding display unit on the plasma panel, makes the wall electric charge exist only in the display unit of wanting luminous.In keeping period T3, because the storage effect of wall electric charge (memory effect), so keep between electrode X and the scan electrode Y as long as suitable alternating voltage put on, the selected display unit that writes the wall electric charge will constantly produce the gas discharge behavior, and continues to send visible light pulses (light pulse).
Referring again to Fig. 2, the driver of conventional ADS driving circuit is subdivided into three periods with reset stage T1, is respectively: the first reset stage T11, the second reset stage T12 and the 3rd replacement period T13.When the first reset stage T11, the driving circuit meeting applies one first delete pulse P to the scan electrode Y of all display units earlier
Y1, the time is about about 100 μ s, its objective is the wall electric charge that the deletion display unit be left behind when last maintenance stage.When the second reset stage T12, driving circuit can apply a positive polarity first excitation pulse (priming pulse) P in the electrode X that keeps of all display units simultaneously
X2, wherein, the square-wave pulse that this first excitation pulse is a noble potential (Squae Pulase) is to remotivate and to form the wall electric charge in the display unit.At last, when the 3rd reset period T13, driving circuit applied the second delete pulse P to the scan electrode Y of all display units
Y3Time also is about about 100 μ s, to delete the unnecessary wall electric charge in the display unit once more.
The driving circuit of tradition plasma panel is at the driver of reset stage, have following problem: described by preamble, the operation of driving circuit when reset stage T1 is in order to unnecessary wall electric charge in all display units in the deletion plasma panel, and makes the accumulation state of each display unit wall electric charge identical.When the second reset stage T12, the driving circuit while is at the first excitation pulse P that electrode X applies positive polarity that keeps of display unit
X2Owing to put on the square-wave pulse of keeping electrode X, and feasible keeping between electrode X and the scan electrode Y produces instant high-voltage.At this moment, all interior ionized gass of display unit discharge space are understood the strong discharge that therefore produces moment.When the ionized gas in the display unit when reset stage produces strong discharge simultaneously, can increase the background luminance (background brightness) of plasma panel screen, and reduce the brightness contrast of plasma panel screen.In addition, produce the noble potential square-wave pulse of violent lifting, the circuit structure of its driving circuit and element want complicated than general circuit.Therefore, the manufacturing cost of driving circuit can be than general circuit costliness.
Summary of the invention
In view of this, the purpose of this invention is to provide the driving method of a kind of AC plasma display screen at reset stage.With so that the accumulation state of each display unit inner wall charge of plasma panel is more approaching.Reduce the background luminance of plasma panel screen simultaneously, improve the brightness contrast of plasma panel screen.At last, reduce the manufacturing cost of driving circuit.
According to purpose of the present invention, the driving method of a kind of AC plasma display screen at reset stage proposed.Plasma display has display screen and driving circuit.Display screen is made up of a plurality of display unit, and wherein each display unit all has first electrode, second electrode and third electrode.Driving circuit then can apply first electrode, second electrode and the third electrode of potential pulse in each display unit respectively in reset stage, in order to form established wall electric charge in wall electric charge or the deletion display unit in display unit.This driving method comprises the following steps: at first at least, first electrode of each display unit applied first delete pulse, in order to the wall electric charge in the deletion display unit.Wherein, first delete pulse is a positive polarity, and its magnitude of voltage rises in time and gradually.Then, first electrode to display unit applies first excitation pulse respectively, and second electrode is applied second excitation pulse, is used to remotivate in the display unit and form the wall electric charge.Wherein, first excitation pulse is a negative polarity, and its magnitude of voltage is to descend in time and gradually, and second excitation wave is a positive polarity, and its magnitude of voltage is to rise in time and gradually.At last, first electrode of display unit is applied second delete pulse, in order to the wall electric charge in the deletion display unit.Wherein, second delete pulse is a positive polarity, and its magnitude of voltage is to rise in time and gradually.
The present invention also provides a kind of driving circuit of AC plasma display screen, in order to drive a plasma display screen, this plasma display screen has a display screen, this display screen comprises a plurality of display units, on the header board of this display unit, be provided with first electrode parallel to each other and second electrode, on the back plate of this display unit, be provided with the third electrode that is vertical relation with above-mentioned first electrode and above-mentioned second electrode, this driving circuit applies potential pulse respectively in this first electrode, this second electrode and this third electrode, in order to when the reset stage, in each display unit, form a plurality of wall electric charges or delete established those wall electric charges, this driving circuit comprises: one first deletion circuit, apply one first delete pulse in order to this first electrode to each display unit, to delete the wall electric charge in each display unit, wherein, this first delete pulse is a positive polarity, and its magnitude of voltage in time and slowly increases; One first energizing circuit applies one first excitation pulse in order to this first electrode to each display unit, makes to remotivate and form the wall electric charge in each display unit, and wherein, this first excitation pulse is a negative polarity, and its magnitude of voltage in time and slowly reduces; One second energizing circuit applies one second excitation pulse in order to this second electrode to each display unit, makes to remotivate and form the wall electric charge in each display unit, and wherein, this second excitation pulse is a positive polarity, and its magnitude of voltage is in time and slowly to rise; And one second deletion circuit, apply one second delete pulse in order to this first electrode to each display unit, to delete the wall electric charge in each display unit, wherein, this second excitation pulse is a positive polarity, and its magnitude of voltage in time and slowly rises.
The disclosed a kind of AC plasma display of the above embodiment of the present invention is at the driving method of reset stage, keep electrode and scan electrode by putting on respectively, excitation pulse and delete pulse that magnitude of voltage all rises or descends gradually along with the time make each display unit all produce repeatedly the roughly the same faint gas discharge of intensity when second reset phase.So, then make the accumulation state of each display unit inner wall charge more approaching.And because each display unit produces the asynchronism(-nization) of gas discharge, and gas only can produce repeatedly faint discharge, make that the plasma panel screen is darker than the background luminance that the known practice produced in the background luminance that reset stage produced, comparatively speaking, the brightness contrast of plasma panel screen also with increase.In addition, the circuit structure of driving circuit of the present invention is simple than the known drive circuit, and manufacturing cost is also lower.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and elaborate in conjunction with the accompanying drawings.
Description of drawings
Fig. 1 shows the side cutaway view of a display unit in the three electrode AC plasma display screens.
Fig. 2 shows the driving sequential chart of known plasma panel.
Fig. 3 shows the sequential chart of the AC plasma display of first embodiment at the driving method of reset stage.
Fig. 4 shows the sequential chart of the AC plasma display of second embodiment at the driving method of reset stage.
Fig. 5 shows the sequential chart of the AC plasma display of the 3rd embodiment at the driving method of reset stage.
Fig. 6 shows the sequential chart of the AC plasma display of the 4th embodiment at the driving method of reset stage.
Fig. 7 shows the sequential chart of the AC plasma display of the 5th embodiment at the driving method of reset stage.
Embodiment
Spirit of the present invention is: put on the excitation pulse (priming pulse) of keeping electrode (sustain electrode) and scan electrode (scan electrode) simultaneously in second replacement period (reset period), its magnitude of voltage all slowly rises along with the time or descends.
Please refer to Fig. 3, Fig. 3 shows the AC plasma display of first embodiment in the sequential chart of the driving method of reset stage.At first, when the first reset stage T11, the scan electrode Y of each display unit applies first delete pulse (erasepulse) P on the article on plasma display screen screen
Y1Wherein, the first delete pulse P
Y1Be positive polarity (polarity), and its magnitude of voltage is to increase in time and gradually, as shown in Figure 3.Because the display unit of plasma panel is to adopt digital operation.So when the first reset stage T11 began, all display units can be divided into two big classes, be respectively that last picture is lighted and display unit, and the not operation of previous picture with a large amount of wall electric charges, do not have or only have the display unit of micro-wall electric charge.Be noted that, because the image data exported of position, circuit structure, physical characteristics and the previous picture of each display unit of plasma panel on screen is neither identical, so in fact the accumulation state of each display unit inner wall charge is also so and difference to some extent.Put on the first delete pulse P of scan electrode Y
Y1Be a sawtooth wave that slowly rises, making to accumulate in the display unit has the display unit of a large amount of wall electric charges to produce faint discharge, and makes its wall electric charge be gradually reduced to certain degree.Last picture does not have operation to be in trace or not have the display unit of state of charge then can not produce the discharge behavior at this moment.So this first delete pulse P that slowly rises
Y1, the display unit that has a large amount of wall electric charges originally can be eliminated the wall electric charge that major part is positioned at the discharge space surface, the display unit that its wall amount of charge and state are operated near previous picture is to dwindle difference between the two.Simultaneously, for fear of the discharge of vertical direction, apply the first data voltage P in data electrode A
D1, too much electric charge is arranged in order to the dielectric layer surface attachment of avoiding data electrode A.
Afterwards, when the second reset stage T12, the driving circuit of plasma panel applies the first excitation pulse P to the scan electrode Y of each display unit respectively
Y2, and apply the second excitation pulse P to keeping electrode X simultaneously
X2, in order in each display unit, to remotivate and to form the wall electric charge.Wherein, the first excitation pulse P
Y2Be negative polarity, its magnitude of voltage is to reduce in time and progressively.And the second excitation pulse P
X2Be positive polarity, its magnitude of voltage is to increase in time and gradually, as shown in Figure 3.
The present invention applies the first delete pulse P at scan electrode Y
Y1Afterwards, apply the different excitation pulse of positive-negative polarity respectively at keeping electrode X with scan electrode Y.The difference of the present invention and known practice maximum is that known technology is to apply the violent noble potential square-wave pulse that changes of a magnitude of voltage in keeping on the electrode; The present invention applies an opposite polarity excitation pulse respectively in keeping on electrode X and the scan electrode Y, and as shown in Figure 3, the magnitude of voltage of its excitation pulse changes all in time and progressively.When putting on the second excitation wave P that keeps electrode X
X2Voltage slowly rises and puts on the first excitation wave P on the scan electrode Y
Y2When voltage slowly descended, the sum voltage that is caused in display unit can increase gradually.At this moment, in the more display unit of some previous remaining electric charge, will begin to produce faint gas discharge.Be noted that, the sum voltage that the real ionized gas that causes in the display unit produces faint gas discharge is to keep the equivalent voltage sum that voltage difference between electrode X and scan electrode Y and the interior remaining electric charge of display unit are caused, and this also is the voltage difference that the ionized gas in the discharge space of display unit is really sensed.
Owing to be added on the excitation pulse of keeping on electrode X and the scan electrode Y outward, its voltage waveform is to change slowly, so when the sum voltage size of experiencing when ionized gas just in time is slightly larger than the discharge start voltage (Firing Voltage) of ionized gas in the display unit, will produce electric discharge phenomena.Also since the voltage experienced of ionized gas only slightly greater than trigger voltage, so only produce faint gas discharge phenomenon.
Less as for other remaining electric charges or do not have display unit can be in the later time, is keeping voltage difference between electrode X and scan electrode Y when bigger, and the phenomenon of faint gas discharge just takes place.So each display unit of whole plasma panel all can in the process that positive and negative excitation pulse writes simultaneously, all can produce the roughly the same faint gas discharge phenomenon of intensity at the second reset stage T12.
Described by preamble, when the second reset stage T12, the voltage difference of keeping between electrode X and the scan electrode Y of each display unit can increase in time and gradually, and makes each display unit produce the roughly the same faint gas discharge of intensity at different time points.Display unit was after producing once faint gas discharge, because near the dielectric layer accumulation of electric charge electrode arranged, and make that therefore the magnitude of voltage of the sum voltage of discharge space also lowers in the display unit, but the voltage difference of keeping between electrode X and the scan electrode Y can continue along with the time to increase gradually, so in the discharge space of display unit, the sum voltage that ionized gas is really sensed also can increase in time and gradually.When sum voltage again was slightly larger than the discharge start voltage (Firing Voltage) of ionized gas in the display unit, ionized gas will produce faint electric discharge phenomena once more.So, then each display unit of plasma panel all can produce repeatedly the roughly the same faint gas discharge phenomenon of intensity when the second reset stage T12.
In sum, when the second reset phase T12, each display unit all can produce the faint gas discharge of several times off and on.And each display unit produce time of faint gas discharge can be along with the state of internal charge accumulation difference to some extent.So, then before the internal charge quantity display unit different with state, can be because of producing repeatedly the roughly the same faint gas discharge of intensity separately and making the difference of charge-accumulation condition each other more and more littler.And because the asynchronism(-nization) of each display unit gas discharge, and gas only can produce repeatedly faint discharge, wherein repeatedly the brightness meeting of faint discharge much smaller than the brightness of strong discharge of the moment described in the known technology, therefore the plasma panel screen can be darker than the background luminance that known technology produced in the background luminance that reset stage produced, so the brightness contrast of plasma panel screen of the present invention also can thereby increase.
When keeping electrode X and scan electrode Y applies the different excitation pulse of positive-negative polarity, driving circuit is reduced to electronegative potential with the data voltage of data electrode A, just zero potential.This current potential is just in time between the zone line of the excitation pulse of positive-negative polarity.So, can avoid the discharge of vertical direction, also avoid electric charge to be attached on the dielectric layer of data electrode A simultaneously.
After the second reset stage T12 finishes, keep electrode X and scan electrode Y all can get back to zero potential.At this moment, each display unit can be because the equivalent voltage that inner stored charge caused greater than discharge start voltage, discharges from deletion so all display units produce once together.The wall electric charge of each display unit inside can be reduced to a certain degree simultaneously.
When the 3rd reset period T13, driving circuit can apply the second delete pulse P to the scan electrode Y of each display unit
Y3, with so that all display unit all produce faint gas discharge, delete the wall electric charge that remains unchanged too much in each display unit, avoid after make a mistake when entering addressing period T2.Wherein, the second delete pulse P
Y3Be positive polarity, and its magnitude of voltage is in time and slowly to increase.Display unit is at the second delete pulse P through slowly rising
Y3Afterwards, state of charge difference each other can reduce more, reaches the purpose of height homogenising.In addition, for fear of the discharge of vertical direction, apply the second data voltage P at data electrode A
D3, in order to have multi-charge on the surface of avoiding data electrode A.
Be noted that in the present embodiment, its waveform of delete pulse and excitation pulse slowly rises all in time and descends.As can be known described by preamble, the display unit of plasma panel can be considered as a capacity load equivalently.Form a single order charge-discharge circuit so can utilize outer meeting resistance and this equivalence electric capacity to couple.Can realize the delete pulse that present embodiment proposes and the waveform of excitation pulse by the operation of this single order charge-discharge circuit.The structure of its driving circuit and element are all more known simply many in order to the driving circuit that produces square-wave pulse.Manufacturing cost is low far beyond the known drive circuit also.
Proposed by the invention puts on the deletion electric wave of keeping electrode X and scan electrode Y respectively and excites electric wave in reset phase, and its waveform is not defined as shown in Figure 3, as long as magnitude of voltage can slowly rise or descend in time.Please refer to Fig. 4, Fig. 4 shows the sequential chart of the AC plasma display of second embodiment at the driving method of reset stage.In the present embodiment, putting on the deletion electric wave of keeping electrode X and scan electrode Y is sawtooth wave (saw-toothwave) with exciting electric wave.Please refer to Fig. 5.It shows the sequential chart of the 3rd embodiment proposed by the invention.In the present embodiment, put on the deletion electric wave of keeping electrode X and scan electrode Y compare with more preceding two embodiment of degree that the magnitude of voltage that excites electric wave descends in time to relax many.Above-mentioned these two embodiment are except the waveform of delete pulse and excitation pulse, and the driving sequential of its driving circuit is all identical with first embodiment with principle, repeats no more in this.
Please refer to Fig. 6, Fig. 6 shows the AC plasma display of the 4th embodiment in the sequential chart of the driving method of reset stage.Please comparison diagram 3 with Fig. 6 in, when the second reset stage T12, be applied to the first excitation pulse P that keeps electrode X
X2Waveform.In the present embodiment, the first excitation pulse P
X2Be that a direct current bias voltage (DC bias) is arranged earlier, afterwards, magnitude of voltage rises in time and gradually again.The advantage of present embodiment is owing to applying a direct current bias voltage earlier at the beginning, so the first excitation pulse P
X2Magnitude of voltage to rise to the required time of maximal value gradually shorter, can save the required time of the second reset stage T12, please refer to Fig. 7, Fig. 7 shows the sequential chart of the AC plasma display of the 5th embodiment at the driving method of reset stage.In the present embodiment, put on the first excitation pulse P of scan electrode Y
Y2With put on the second excitation pulse P that keeps electricity level X
X2Waveform be a direct current bias voltage (DC bias) is arranged earlier after, magnitude of voltage rises in time and gradually or descends.So also can in the shorter time, make the voltage difference of keeping between electrode X and the scan electrode Y reach maximum.
In sum, though the present invention discloses as above with a preferred embodiment, so it is not in order to limit the present invention; those skilled in the art; without departing from the spirit and scope of the present invention, can be used for a variety of modifications and variations, so protection scope of the present invention is as the criterion with accompanying interest field.
Claims (13)
1. an AC plasma display screen is at the driving method of reset stage, this plasma display screen has a display screen and one drive circuit, this display screen includes a plurality of display units, on the header board of this display unit, be provided with first electrode parallel to each other and second electrode, on the back plate of this display unit, be provided with the third electrode that is vertical relation with above-mentioned first electrode and above-mentioned second electrode, this driving circuit applies potential pulse this first electrode in each display unit respectively at reset stage, on this second electrode and this third electrode, be used to form a plurality of wall electric charges in each display unit or delete established those wall electric charges in each display unit, this driving method comprises the following steps: at least
This first electrode to each display unit applies one first delete pulse, and in order to delete the wall electric charge in each display unit, wherein, this first delete pulse is a positive polarity, and its magnitude of voltage system rises in time and gradually;
This first electrode to each display unit applies one first excitation pulse respectively, and this second electrode applied one second excitation pulse, in order in each display unit, to remotivate and to form the wall electric charge, wherein, this first excitation pulse is a negative polarity, and its magnitude of voltage descends in time and gradually, and this second excitation pulse is a positive polarity, and its magnitude of voltage rises in time and gradually; And
This first electrode to each display unit applies one second delete pulse, and in order to delete the wall electric charge in each display unit, wherein, this second delete pulse is a positive polarity, and its magnitude of voltage rises in time and gradually.
2. driving method as claimed in claim 1, wherein when this driving circuit applies this first delete pulse to this first electrode of each display unit, this driving circuit applies one first data pulse to this third electrode of each display unit, and this first data pulse is the square-wave pulse with positive polarity.
3. driving method as claimed in claim 1, wherein when this driving circuit applies this second delete pulse to this first electrode of each display unit, this driving circuit applies one second data pulse to this third electrode of each display unit, and this second data pulse is the square-wave pulse with positive polarity.
4. driving method as claimed in claim 1, wherein this first delete pulse is a sawtooth wave.
5. driving method as claimed in claim 1, wherein this first excitation pulse is a sawtooth wave.
6. driving method as claimed in claim 1, wherein this second excitation pulse is a sawtooth wave.
7. driving method as claimed in claim 1, wherein this second delete pulse is a sawtooth wave.
8. driving method as claimed in claim 1, wherein this first excitation pulse for have earlier its polarity for just with amplitude and Dc bias that the magnitude of voltage of addressing time period equates after, magnitude of voltage is rising in time and gradually again.
9. driving method as claimed in claim 1, wherein this second excitation pulse is for having its its polarity earlier for after negative and amplitude and the Dc bias that the magnitude of voltage of addressing time period equates, and magnitude of voltage is decline in time and gradually again.
10. the driving circuit of an AC plasma display screen, in order to drive a plasma display screen, this plasma display screen has a display screen, this display screen comprises a plurality of display units, on the header board of this display unit, be provided with first electrode parallel to each other and second electrode, on the back plate of this display unit, be provided with the third electrode that is vertical relation with above-mentioned first electrode and above-mentioned second electrode, this driving circuit applies potential pulse respectively in this first electrode, this second electrode and this third electrode, in order to when the reset stage, form a plurality of wall electric charges or delete established those wall electric charges in each display unit, this driving circuit comprises:
One first deletion circuit applies one first delete pulse in order to this first electrode to each display unit, and to delete the wall electric charge in each display unit, wherein, this first delete pulse is a positive polarity, and its magnitude of voltage in time and slowly increases;
One first energizing circuit applies one first excitation pulse in order to this first electrode to each display unit, makes to remotivate and form the wall electric charge in each display unit, and wherein, this first excitation pulse is a negative polarity, and its magnitude of voltage in time and slowly reduces;
One second energizing circuit applies one second excitation pulse in order to this second electrode to each display unit, makes to remotivate and form the wall electric charge in each display unit, and wherein, this second excitation pulse is a positive polarity, and its magnitude of voltage is in time and slowly to rise; And
One second deletion circuit applies one second delete pulse in order to this first electrode to each display unit, and to delete the wall electric charge in each display unit, wherein, this second excitation pulse is a positive polarity, and its magnitude of voltage in time and slowly rises.
11. driving circuit as claimed in claim 10, wherein this driving circuit also comprises one first data circuit, in order to when this first deletion circuit applies this first delete pulse to this first electrode of each display unit, this third electrode to each display unit applies one first data pulse, wherein, this first data pulse is the square-wave pulse with positive polarity.
12. driving circuit as claimed in claim 10, wherein this driving circuit also comprises one second data circuit, in order to when this second deletion circuit applies this second delete pulse to this first electrode of each display unit, this third electrode to each display unit applies one second data pulse, and this second data pulse is the square-wave pulse with positive polarity.
13. driving circuit as claimed in claim 10, wherein this first electrode and this second electrode system are set in parallel in this display unit, and this third electrode is arranged in this display unit in the mode of vertical this first electrode and this second electrode respectively.
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| CN 01139329 CN1211769C (en) | 2001-11-26 | 2001-11-26 | Drive method of AC plasma display screen in the reset stage |
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| CN 01139329 CN1211769C (en) | 2001-11-26 | 2001-11-26 | Drive method of AC plasma display screen in the reset stage |
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| KR100488463B1 (en) * | 2003-07-24 | 2005-05-11 | 엘지전자 주식회사 | Apparatus and Method of Driving Plasma Display Panel |
| CN100377187C (en) * | 2004-09-03 | 2008-03-26 | 南京Lg同创彩色显示***有限责任公司 | Method for driving plasma display device |
| KR20070108675A (en) * | 2006-05-08 | 2007-11-13 | 엘지전자 주식회사 | Plasma display panel |
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