CN101055692A - Driving method of plasm display - Google Patents
Driving method of plasm display Download PDFInfo
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- CN101055692A CN101055692A CN 200610039454 CN200610039454A CN101055692A CN 101055692 A CN101055692 A CN 101055692A CN 200610039454 CN200610039454 CN 200610039454 CN 200610039454 A CN200610039454 A CN 200610039454A CN 101055692 A CN101055692 A CN 101055692A
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Abstract
The invention relates a dirving method of a plasma display capable of increasing a contrast while preventing generation of errors. The plasma display dirving method of the invention comprises following stages: a stage of providing data pulses for addressing electrodes while proving scanning pulses to scanning electrodes during an addressing period with at least one sub-segment, in a plurality of sub-segments included in a frame, and selecting a discharing unit; a stage of alternately supplying maintaining pulses with a maintaining voltage on the scanning electrodes and maintaining electrodes during a maintaning period of at least one sub-segment; and a stage of supplying slope-elimination wave pulses with an ascending grade on the scanning electrodes after supplying a final maintaining pulse.
Description
Technical field
The present invention relates to when preventing erroneous discharge, can improve the plasma display dirving method of contrast again.
Background technology
Plasma display (hereinafter to be referred as PDP) is that the ultraviolet ray of the 147nm that produces when discharging according to inert mixed gas such as He+Xe, Ne+Xe or He+Xe+Ne makes light-emitting phosphor, comprises the image document of literal and chart with demonstration.
This PDP not only is easy to maximization and ultra-thinization development, and because technical improvement also makes image quality improve a lot.Particularly three exchange surface discharge type PDP when discharge, not only can accumulate the wall electric charge from the teeth outwards, and can protect and swash the injury of penetrating electrode when discharging.Therefore, this kind PDP has low driving voltage and feature of long life.
With reference to Fig. 1, three discharge cells that exchange surface discharge type PDP comprise: be installed in the scan electrode Y on the upper substrate 10 and keep electrode Z, addressing electrode X is arranged on lower basal plate 18.Scan electrode Y is narrower than the width of transparency electrode 12Y, 12Z with the width of keeping electrode Z, in phase the same side of transparency electrode metal bus electrode 13Y, 13Z is arranged.
On the lower basal plate 18 that addressing electrode X is housed, lower dielectric layer 22 and dividing wall 24 are arranged, scribble luminescent coating 26 on the surface of lower dielectric layer 22 and dividing wall 24, addressing electrode X is positioned at scan electrode Y and keeps on the crossover location of electrode Z.Dividing wall 24 is arranged side by side with addressing electrode X, and its effect is to prevent that the ultraviolet ray and the visible light that produce when discharge from leaking in the discharge cell that closes on.Can send a kind of visible light in redness, green or the blue light under the action of ultraviolet radiation that luminescent coating 26 produces when plasma discharge, inject inert mixed gas in the discharge space between top and the bottom substrate 10,18 and dividing wall 24.
PDP is subdivided into a plurality of son fields to each frame with number of light emission times again and drives for realizing the gamma of image.Each son field is divided into the full frame initialized initialization phase again, select sweep trace and in the sweep trace of selecting selected cell address period, realize keeping the phase of gamma according to discharge time.
Therefore, the initialization phase is divided into the rising stage that uphill slope type waveform is provided and the decrement phase of declivity type waveform again.For example, coming under the situation of display frame with 2 56, as shown in Figure 2, be divided into 8 son fields (SF1 to SF8) in the 1/60 second corresponding time (16.67ms).8 son fields (SF1 to SF8) are distinguished as mentioned above, and they are divided into initialization phase, address period respectively and keep the phase.The initialization phase of each son field and address period be in each son field in the identical time, in each son field with 2
nThe ratio of (n=0,1,2,3,4,5,6,7) increases.
To electrode Y, the drive waveforms that Z, X provide describes with reference to Fig. 3.At first in the rising stage of initialization phase, be applied with uphill slope type waveform simultaneously on all scan electrode Y, uphill slope type waveform on foundation can cause faint rising electric discharge phenomena in full frame unit, so that it generates the wall electric charge in the unit.This moment provide anodal on the scan electrode Y of uphill slope type waveform, shown in Fig. 4 a, formed the wall electric charge of negative pole, Y compares with scan electrode, current potential is relatively low keeps electrode Z and addressing electrode X and goes up and form anodal wall electric charge.
In decrement phase, behind uphill slope type waveform in the supply, than on the low cathode voltage of the ceiling voltage of uphill slope type waveform, simultaneously apply declivity type waveform pulse on a declining curve to scan electrode Y, the waveform pulse of declivity type owing to produced faint elimination discharge, promptly shown in Fig. 4 b, can be eliminated wall electric charge and the space charge of part according to the rising discharge generation in the unit, in full frame unit, the necessary wall electric charge of the residual address discharge that balancedly distributing.
In address period, the negative pole scanning impulse is applied to scan electrode Y in order, applies anodal data pulse to addressing electrode X simultaneously.Be applied to magnitude of voltage and initialization magnitude of voltage merging of generation negative pole wall electric charge on scan electrode Y during the phase of the scanning impulse of scan electrode Y; Be applied to addressing electrode Y data pulse magnitude of voltage and merge in the magnitude of voltage of keeping the anodal wall electric charge that produces on the electrode Z the initialization phase.Address discharge takes place in the two in the unit simultaneously.Form anodal wall electric charge this moment on the scan electrode Y of the scanning impulse that negative polarity is provided shown in Fig. 4 c, provide the addressing electrode X of the data pulse of positive pole upward to produce negative pole wall electric charge.Shown in Fig. 4 c, the most of negative pole wall electric charge that produces on addressing electrode X generally is created on the overlapping areas with scan electrode Y.
In decrement phase and address period, supply with the cathode voltage of keeping voltage Vs to keeping electrode Z.In the phase of keeping, to scan electrode Y with keep electrode Z and apply and keep pulse, keep pulse owing to apply to scan electrode for the first time, it with merge according to keep for the first time the anodal wall charge voltage value that pulse and address discharge generate on scan electrode Y.Therefore, at unit interscan electrode Y with keep just to have produced between electrode Z and keep electric discharge phenomena.In the unit that does not produce address discharge shown in Fig. 4 b owing on scan electrode Y, produced negative pole wall electric charge, therefore keep pulse and just can not produce and do not keep discharge according to primary.
Afterwards, in the phase of keeping,, in the unit of selecting according to address discharge, produce and keep voltage as alternately importing and keep pulse to keeping electrode Z and scan electrode Y.In addition, in existing P DP, apply and keep pulse at last, keep discharge shown in Fig. 4 d after pulse and the discharge, on scan electrode Y, form negative pole wall electric charge, form anodal wall electric charge on the electrode Z keeping according to keeping at last to scan electrode Y.
In the phase of keeping, keeping the voltage that forms regulation on the addressing electrode X of basic current potential, by above detailed description, in the unit that address discharge takes place, shown in Fig. 4 c, on addressing electrode X, generate negative pole wall electric charge, produce the discharge of keeping of interior stipulated number of the phase of keeping with that.In this discharge, charged particle is provided by addressing electrode X, has accumulated a certain amount of electric charge simultaneously on addressing electrode X.In fact, on addressing electrode X, can produce and keep the corresponding negative or positive electrode wall of discharge time electric charge (X of Fig. 4 d represents the negative or positive electrode electric charge).Keep in the phase, the electric charge major part that forms on the addressing electrode X be with scan electrode Y overlapped the zone in the generation.
On the other hand, before the phase of keeping, addressing electrode X and scan electrode Y discharge (discharge of rising, discharge, address discharge descend).Owing to providing electric charge to the addressing electrode X that can produce negative pole wall electric charge according to keeping the charged particle that produces of discharge, therefore, in the phase of keeping, the electric charge major part that addressing electrode X goes up formation with scan electrode Y overlapping areas in produce.
After keeping the discharge end, eliminate sloping type waveform pulse to keeping to provide on the electrode Z.If apply anodal elimination slope type waveform pulse, at scan electrode Y with keep to produce between electrode Z and eliminate discharge to electrode Z.Shown in Fig. 4 e, eliminate discharge, will carry out the part elimination,, on PDP, just show the image that to stipulate through the repetition repeatedly of said process to resulting from the wall electric charge of keeping on electrode Z and the scan electrode Y according to this.
But, in this driving method,,, just may produce erroneous discharge owing to can not eliminate the electric power storage that is created on the generation on the addressing electrode X according to eliminating discharge, below it is elaborated.
On addressing electrode X, produce and keep the corresponding electric power storage of discharge time, producing with the overlapping part of scan electrode Y owing to be created on big portion electric power storage on the addressing electrode X and be, therefore just can not eliminate the elimination slope type waveform pulse of keeping on the electrode Z, (promptly can not guide addressing electrode X and keep and produce the elimination discharge between electrode Z).Be created on electric power storage meeting on the addressing electrode X and cause afterwards that the discharging condition of son field changes, therefore in PDP, erroneous discharge will occur.Particularly changing according to addressing electrode X under the situation of discharging condition, can cause keeping discharge time and increase considerably.
Summary of the invention
Therefore, purpose of the present invention just provides a kind of when preventing erroneous discharge, also can improve the plasma display dirving method of contrast.
To achieve these goals, plasma display dirving method of the present invention comprises following several stages: in a plurality of son fields in being included in a frame, in the address period that has the son field more than 1 at least, when scan electrode provides scanning impulse, provide data pulse to addressing electrode, and select the stage of discharge cell; Having the keeping in the phase of more than one son field at least, to scan electrode and keep alternately to supply with on the electrode and have the stage of keeping pulse of keeping voltage; Having the keeping in the phase of son field more than 1 at least, supply with the stage of keeping pulse at last to keeping electrode; After supply is kept pulse at last, apply the stage of elimination gradient waveform pulse to scan electrode with upstroke slope.
Said method also comprises: in the initialization phase that the son field more than 1 should be arranged at least, provide the stage of the last uphill slope type waveform pulse that always rises to up voltage.
The magnitude of voltage of above-mentioned elimination slope type waveform pulse surpasses keeps magnitude of voltage.
The magnitude of voltage of above-mentioned elimination slope type waveform pulse is set at below the up voltage.
The gradient of eliminating sloping type waveform pulse is identical with the gradient of last uphill slope type waveform pulse.
The number of keeping pulse that provides in the phase of keeping is that the number of the son field more than 10 is at least more than 1.
The number of keeping pulse that provides in the phase of keeping is that the number of the son field more than 50 is at least more than 1.
The number that the accumulation gamma of the brightness added value of setting in advance in a frame surpasses 20 son field is at least more than 1.
Applying to scan electrode when eliminating sloping type waveform pulse, keeping electrode is quick condition.
Applying to scan electrode when eliminating sloping type waveform pulse, keeping the sloping type pulse that applies the same period on the electrode simultaneously.
The magnitude of voltage of the slope type pulse same period is set to be eliminated below the sloping type waveform pulse magnitude of voltage.
Except above purpose, other purpose of the present invention and characteristic describe just very clear by accompanying drawing.
In sum, be: on scan electrode, apply above the elimination slope type waveform pulse of keeping voltage, just can eliminate the electric power storage that results from the addressing electrode according to plasma display dirving method of the present invention.In view of the above, just can prevent erroneous discharge, in addition among the present invention owing to only just can cause discharge in the unit of keeping discharge.Therefore, can prevent the erroneous discharge that contrast descends.
Description of drawings
Fig. 1 is existing three structure exploded views that exchange the discharge cell of surface discharge type plasma display;
Fig. 2 is the synoptic diagram that is illustrated in a frame in the existing plasma display;
Fig. 3 is the oscillogram of showing the driving method of prior art ionic medium display;
Fig. 4 a to 4e is a synoptic diagram of showing the wall electric charge that forms discharge cell according to the drive waveforms among Fig. 3;
Fig. 5 is the oscillogram according to the plasma display dirving method of embodiments of the invention;
Fig. 6 a and Fig. 6 b are the synoptic diagram of showing the wall electric charge that forms discharge cell according to the oscillogram of Fig. 5;
Fig. 7 is the oscillogram according to the plasma display dirving method of other embodiments of the invention;
Fig. 8 shows the wall electric charge synoptic diagram that forms according to the drive waveforms of Fig. 7 in discharge cell;
Fig. 9 is the oscillogram according to the method for driving plasma display device of the embodiment of the invention.
Accompanying drawing major part symbol description
10: upper substrate 12Y, 12Z: transparency electrode
13Y, 13Z: bus electrode 14,22: dielectric layer
16: diaphragm 18: lower basal plate
24: dividing wall 26: luminescent coating
Embodiment
Embodiments of the invention are elaborated to Fig. 9 with reference to Fig. 5 below.Fig. 5 is the oscillogram according to the plasma display dirving method of embodiments of the invention.With reference to Fig. 5, at first in the rise time in the initialization phase, apply sloping type waveform pulse to all scan electrode Y simultaneously, on foundation, can produce faint rising discharge in the full frame unit of uphill slope type waveform pulse.In the unit, also can produce the wall electric charge, shown in Fig. 4 a, on the scan electrode Y that supplies with uphill slope type waveform pulse on the positive pole, can produce the wall electric charge of negative pole this moment,, produce anodal wall electric charge than relatively low the keeping electrode Z and keep on the electrode X of the current potential of scan electrode Y.
In the rising stage, on providing after the waveform pulse of uphill slope type, than on the crest voltage of uphill slope type waveform pulse compare in the low cathode voltage, apply the declivity type waveform pulse of decline simultaneously to scan electrode Y.The waveform pulse of declivity type shown in Fig. 4 b, can be eliminated wall electric charge and space charge that part generates according to the discharge of rising as the pulse that causes faint discharge in the unit.In full frame unit.Can the necessary wall electric charge of more residual fifty-fifty address discharge.
In address period, on scan electrode Y, can apply the negative pole scanning impulse in order, apply anodal data pulse to addressing electrode X simultaneously.Apply the magnitude of voltage of scanning impulse of scan electrode Y and initialization produces negative pole wall electric charge on scan electrode Y during the phase magnitude of voltage and merge, be applied to addressing electrode Y data pulse magnitude of voltage with keeping the magnitude of voltage merging of the anodal wall electric charge that produces on the electrode Z in the initialization phase.Address discharge takes place in the two in the unit simultaneously.At this moment, on the scan electrode Y of the scanning impulse that negative polarity is provided, shown in Fig. 4 c, form anodal wall electric charge, on the addressing electrode X of the data pulse that positive pole is provided, produce negative pole wall electric charge.Shown in Fig. 4 c, the most of negative pole wall electric charge that produces on addressing electrode X is generally producing with scan electrode Y overlapping areas.
In decrement phase and address period, supply with the cathode voltage of keeping voltage Vs to keeping electrode Z.In the phase of keeping, to scan electrode Y with keep electrode Z and apply and keep pulse, keep pulse, merge according to the anodal wall charge voltage value of keeping for the first time pulse and on scan electrode Y, generate because of address discharge owing to apply to scan electrode for the first time.Therefore, in the unit, scan electrode is advocated peace to keep just to have produced between electrode Z and is kept electric discharge phenomena.Be shown in the unit that does not produce address discharge as Fig. 4 b, owing on scan electrode Y, produced negative pole wall electric charge, therefore keep pulse and just can not produce and do not keep discharge according to primary.
Then, in the phase of keeping,, in the unit of selecting according to address discharge, produce and keep voltage as alternately importing and keep pulse to keeping electrode Z and scan electrode Y.In addition, in PDP driving method of the present invention, apply and keep pulse at last to keeping electrode Z, therefore shown in Fig. 6 a, just on scan electrode Y, produce anodal wall electric charge according to the support discharge of keeping pulse at last, produce negative pole wall electric charge keeping on the electrode Z,, on addressing electrode X, produce the electric charge of regulation with to keep discharge time corresponding.
After keeping the discharge end, provide on scan electrode Y and eliminate sloping type waveform pulse to keep keeping the basic current potential of electrode, the elimination slope type waveform pulse that is applied to scan electrode Y merges with the magnitude of voltage of the anodal wall electric charge that produces on scan electrode Z according to keeping discharge at last.Produce in the unit and eliminate discharge this moment, therefore, eliminates sloping type waveform pulse owing to applying to scan electrode Y, will keep electrode Y and scan electrode Y, keep to produce between electrode Z and scan electrode Y and eliminate discharge.
In detail, promptly on addressing electrode Y, produce the electric power storage major part and be positioned at overlapping areas with scan electrode Y.Therefore, if apply the sloping type waveform pulse of elimination, will produce between scan electrode Y and addressing electrode X and eliminate discharge to scan electrode Y.The positive pole that is applied to scan electrode Y is eliminated the magnitude of voltage of sloping type waveform pulse and addressing electrode X and is gone up the electric power storage that produces and discharge, so that keep voltage Vs (keeping the voltage of pulse) within the limits prescribed.Once more,, addressing electrode X and scan electrode Y, keep discharge can take place to eliminate between electrode Z and scan electrode Y, also can produce the wall electric charge shown in Fig. 6 b simultaneously if be applied to scan electrode Y surpassing the sloping type waveform pulse keep voltage Vs.In the present invention promptly, according to the elimination of Fig. 6 b discharge,, therefore just can prevent the phenomenon of generation erroneous discharge in son field because scan electrode Y, the amount of keeping the wall electric charge that electrode Z and addressing electrode X produce are reducing.
In the unit of not keeping discharge, as Fig. 4 b, promptly on scan electrode Y, produce the negative polarity electric charge, in the unit even discharge can not take place to eliminate yet in the elimination slope type waveform pulse that applies positive polarity to scan electrode Y owing to produce the wall electric charge.Among the present invention, do not have in contrast that the electric power storage that produces will recover again on the addressing electrode X of loss, (only keep just can take place in the unit of discharge to eliminate discharge)
The gradient of the sloping type waveform of elimination of the present invention should be identical with the gradient of the last uphill slope type waveform that provides in the initialization phase.Do not increasing circuit, eliminating sloping type waveform pulse but utilize the circuit that the waveform pulse of uphill slope type is provided also can apply.Therefore can prevent to increase manufacturing cost.The magnitude of voltage of eliminating sloping type waveform pulse should be set at than causing the peak electricity with discharge of addressing electrode X safety and don't the strong last uphill slope type waveform that discharges of generation to be forced down.Simultaneously, the drive waveforms in the embodiment of the invention as shown in Figure 5 is applicable to the situation that comprises a plurality of son fields in a frame, and at least more than one son field should be arranged.
This is elaborated, comprise a plurality of son fields shown in Fig. 2 in a frame, among Fig. 5, drive waveforms of the present invention is applied to comprise in a plurality of son fields in a frame, and at least more than one son field should be arranged, just can prevent to produce the phenomenon of erroneous discharge at PDP.In the last son field in comprising a frame, can apply drive waveforms as shown in Figure 3.
In fact, drive waveforms of the present invention shown in Figure 5 its keep pulse should be more than 10.Also be applicable to simultaneously the situation more than 50.A plurality of when keeping pulse in the phase of keeping when supplying with, because the charge capacity on addressing electrode X in continuous increase, therefore also is applicable to drive waveforms of the present invention shown in Figure 5.So just can prevent the erroneous discharge that produces owing to setting back of addressing electrode X.
Drive waveforms of the present invention shown in Figure 5 is applicable to that also accumulation gamma in a frame is in the situation more than 20, for example, when the gamma value at a frame was " 1,2,4,8,16,32,64,128 ", the accumulation gamma also had been applicable to drive waveforms of the present invention on the son field that surpasses 20 16 gammas.In fact along with the increase of the gamma of a frame, the charge capacity that generates on addressing electrode X also can increase thereupon, and therefore as shown in Figure 5, this situation also is applicable to the present invention, and can prevent to produce erroneous discharge.
Fig. 7 is the oscillogram according to the plasma display dirving method of other embodiments of the invention.As shown in Figure 7, identical with embodiments of the invention shown in Figure 5 according to the initialization phase of the driving method of the PDP of other embodiments of the invention with address period, just no longer describe in detail here.
With reference to Fig. 7, in the driving method of the PDP of the foundation embodiment of the invention, in the phase of keeping to scan electrode Y with keep electrode Z and alternately apply and keep pulse, therefore, keep for the first time pulse owing to applying to scan electrode Y, will with keep for the first time the magnitude of voltage of pulse and merge with the anodal wall electric charge that on scan electrode Y, produces according to address discharge, and in the unit, make scan electrode Y and keep to produce between electrode Z and keep electric discharge phenomena.In the unit that address discharge does not take place, as shown in Figure 4,, therefore just can not keep discharge according to the pulse first time owing on scan electrode Y, produce negative pole wall electric charge.
Below, in the phase of keeping,, in the unit that the foundation address discharge is selected, can produce and keep discharge as keeping pulse to keeping alternately to import between electrode Z and scan electrode Y.On the other hand, in the driving method of PDP of the present invention, be applied to and keep on the electrode Z keeping pulse at last, and according to the discharge of keeping of keeping pulse at last, will on the scan electrode Y of Fig. 6 a, produce anodal wall electric charge, keep generation negative pole wall electric charge on the electrode Z.Corresponding with the number of times of keeping discharge, on addressing electrode X, produce the electric charge of stipulating.
After keeping discharge and finishing, supply with to scan electrode Y and to eliminate sloping type waveform pulse, when being applied to sloping type waveform pulse to scan electrode Y, keeping electrode Z and will move.The positive pole that applies to scan electrode X is eliminated sloping type waveform pulse and is gone up the anodal wall electric charge that produces according to the last scan electrode Y that keeps discharge and merged.In view of the above, produce in the unit and eliminate discharge, eliminating discharge is to take place between scan electrode Y and addressing electrode X.Keeping the keeping on the electrode Z of mobile status, the identical assigned voltage of elimination slope type waveform pulse that applies and supply with to scan electrode Y is according to this voltage scanning electrode Y with keep between electrode Z and just can not produce electric discharge phenomena.
According to eliminating sloping type waveform pulse, if discharge takes place to eliminate, as shown in Figure 8, will eliminate scan electrode Y and addressing electrode X and go up the wall electric charge (result from the wall electric charge of keeping electrode Z here and combine, eliminate electric charge) that produces with part with eliminating the charged particle that produces when discharging.In the present invention promptly, the wall electric charge on the addressing electrode X is reduced, therefore, just can prevent erroneous discharge during the son field afterwards because of eliminating discharge.In addition, the son field that is suitable for the magnitude of voltage of eliminating sloping type waveform pulse is identical with embodiments of the invention shown in Figure 5, therefore just no longer elaborates here.
Fig. 9 is the oscillogram according to the method for driving plasma display device of the embodiment of the invention.In the driving method of PDP as shown in Figure 9, initialization phase and the address period also embodiments of the invention with shown in Figure 5 are identical, also no longer elaborate.
With reference to Fig. 9, in PDP driving method of the present invention, in the phase of keeping to scan electrode Y with keep electrode Z and alternately apply and keep pulse, keep for the first time pulse owing to applying to scan electrode Y, the magnitude of voltage of keeping for the first time pulse and the anodal wall electric charge that produces according to address discharge on scan electrode Y is merged, at unit interscan electrode Y with keep to produce between electrode Z and keep electric discharge phenomena.In the unit that address discharge does not take place, shown in Fig. 4 a to Fig. 4 c, owing on scan electrode Y, produce negative pole wall electric charge, so it just can not keep discharge with the pulse generation first time.
Below in the phase of keeping, as keeping pulse, in the unit that the foundation address discharge is selected, can produce and keep discharge to keeping between electrode Z and scan electrode Y alternately to import.On the other hand, in the driving method of PDP of the present invention, be applied to and keep on the electrode Z keeping pulse at last, therefore according to the discharge of keeping of keeping pulse at last, will on the scan electrode Y of Fig. 6 a, produce anodal wall electric charge, keep generation negative pole wall electric charge on the electrode Z.The corresponding electric charge that on addressing electrode X, produces regulation with the number of times of keeping discharge.
After keeping discharge and finishing, apply first to scan electrode Y and eliminate sloping type waveform pulse, applying first to scan electrode Y when eliminating sloping type waveform pulse, provide the 2nd to eliminate sloping type waveform pulse on the electrode Z to keeping.The sloping type waveform pulse of the 1st elimination that applies to scan electrode Y merges with the wall electric charge that produces on scan electrode Y according to keeping discharge at last.In the unit, produce to eliminate discharge in view of the above, eliminate discharge here and occurs between scan electrode Y and the addressing electrode X, owing to eliminate sloping type waveform pulse to keeping electrode Z second, therefore, at scan electrode Y with keep between electrode Z and just electric discharge phenomena can not take place.
According to eliminating sloping type waveform pulse, if discharge takes place to eliminate, will eliminate scan electrode Y and addressing electrode X as shown in Figure 8 and go up the wall electric charge (result from the wall electric charge of keeping electrode Z here and combine, eliminate electric charge) that produces with part with eliminating the charged particle that produces when discharging.In the present invention promptly, the wall electric charge on the addressing electrode X is reduced, therefore, just can prevent erroneous discharge during the son field afterwards because of eliminating discharge.
In addition, the 2nd magnitude of voltage of eliminating sloping type waveform pulse is set at littler or identical than the magnitude of voltage of the sloping type waveform pulse of the 1st elimination.The son field of the magnitude of voltage of the sloping type waveform pulse of suitable the 1st elimination such as the example that Fig. 5 write down are identical, just no longer describe in detail.
By above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from the technology of the present invention thought.Therefore, technical scope of the present invention is not limited to the content on the instructions, must determine its technical scope according to interest field.
Claims (11)
1, a kind of plasma display dirving method, it is characterized in that, comprise: in a plurality of son fields in being included in a frame, in the address period that has the son field more than 1 at least, when scan electrode provides scanning impulse, provide data pulse to addressing electrode, and select the stage of discharge cell; Having the keeping in the phase of more than one son field at least, to scan electrode and keep alternately to supply with on the electrode and have the stage of keeping pulse of keeping voltage; Having the keeping in the phase of son field more than 1 at least, supply with the stage of keeping pulse at last to keeping electrode; After supply is kept pulse at last, be applied with the stage of the elimination slope type waveform pulse of upstroke slope to scan electrode.
2, plasma display dirving method as claimed in claim 1 is characterized in that, also comprises: have the initialization phase of the son field more than 1 at least, the stage of the last uphill slope type waveform pulse that always rises to up voltage is provided.
3, plasma display dirving method as claimed in claim 2 is characterized in that: the magnitude of voltage of above-mentioned elimination slope type waveform pulse surpasses keeps magnitude of voltage.
4, plasma display dirving method as claimed in claim 3 is characterized in that: the magnitude of voltage of above-mentioned elimination slope type waveform pulse should be set at less than last up voltage.
5, plasma display dirving method as claimed in claim 2 is characterized in that: the gradient of eliminating sloping type waveform pulse is identical with the gradient of last uphill slope type waveform pulse.
6, plasma display dirving method as claimed in claim 1 is characterized in that: the number of keeping pulse that provides in the phase of keeping is that the number of the son field more than 10 is at least more than 1.
7, plasma display dirving method as claimed in claim 6 is characterized in that: the number of keeping pulse that provides in the phase of keeping is that the number of the son field more than 50 is at least more than 1.
8, plasma display dirving method as claimed in claim 1 is characterized in that: the number that the accumulation gamma of the brightness added value of setting in advance in a frame surpasses 20 son field is at least more than 1.
9, plasma display dirving method as claimed in claim 1 is characterized in that: applying to scan electrode when eliminating sloping type waveform pulse, keeping electrode is quick condition.
10, plasma display dirving method as claimed in claim 1 is characterized in that: applying to scan electrode when eliminating sloping type waveform pulse, keeping the sloping type pulse that applies the same period on the electrode.
11, plasma display dirving method as claimed in claim 10 is characterized in that: the magnitude of voltage of the slope type pulse same period is set at less than eliminating sloping type waveform pulse magnitude of voltage.
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| CN 200610039454 CN101055692A (en) | 2006-04-12 | 2006-04-12 | Driving method of plasm display |
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| CN 200610039454 CN101055692A (en) | 2006-04-12 | 2006-04-12 | Driving method of plasm display |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102171748A (en) * | 2008-10-01 | 2011-08-31 | 欧丽安等离子显示器株式会社 | Method for driving an AC type plasma display panel |
| CN103229226A (en) * | 2011-01-28 | 2013-07-31 | 松下电器产业株式会社 | Method for driving plasma display panel, and plasma display apparatus |
-
2006
- 2006-04-12 CN CN 200610039454 patent/CN101055692A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102171748A (en) * | 2008-10-01 | 2011-08-31 | 欧丽安等离子显示器株式会社 | Method for driving an AC type plasma display panel |
| CN103229226A (en) * | 2011-01-28 | 2013-07-31 | 松下电器产业株式会社 | Method for driving plasma display panel, and plasma display apparatus |
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