CN101246665A - Method for driving plasma display device - Google Patents
Method for driving plasma display device Download PDFInfo
- Publication number
- CN101246665A CN101246665A CN 200710084041 CN200710084041A CN101246665A CN 101246665 A CN101246665 A CN 101246665A CN 200710084041 CN200710084041 CN 200710084041 CN 200710084041 A CN200710084041 A CN 200710084041A CN 101246665 A CN101246665 A CN 101246665A
- Authority
- CN
- China
- Prior art keywords
- pulse
- reset pulse
- reset
- frame
- son
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The present invention provides a method of driving plasma panel display. In the method, the first reset pulse containing the leading pulse and the falling pulse is exerted to the scanning electrode during the reset cycle of the first sub-field of multiple sub-field. The second reset pulse containing the leading pulse and the falling pulse is exerted to the scanning electrode during the reset cycle of the unlock sub-field adjacent to the shutoff sub-field in other sub-field except the first sub-field. the third pulse containing the falling pulse is exerted to the scanning electrode during the reset cycle of another sub-field except the sub-field exerted by the first reset pulse and the second reset pulse.
Description
Technical field
The application relates to plasma display system, and more specifically, relates to the method that drives plasma display system.
Background technology
In display device, plasma display system comprises Plasmia indicating panel and the driver that drives Plasmia indicating panel.
Plasmia indicating panel has such structure, and the barrier rib that wherein is formed between front panel and the rear panel forms unit discharge unit (unit discharge cell) or a plurality of discharge cell (discharge cells).Each discharge cell is filled with and comprises for example main discharge gas of the combination gas of neon (Ne), helium (He) or Ne and He, and the inert gas of a spot of xenon (Xe).
A plurality of discharge cells form a pixel.For example, red (R) discharge cell, green (G) discharge cell and indigo plant (B) discharge cell form a pixel.
When utilizing HF voltage to make the Plasmia indicating panel discharge, inert gas produces vacuum ultraviolet, thereby causes being formed on the light-emitting phosphor between barrier rib, thereby display image.Because Plasmia indicating panel can be made thinly and be light, it receives much concern as display device of future generation.
The rising pulse that is applied to scan electrode during reset cycle is a high voltage pulse, makes the light quantity that discharge produced that causes by this rising pulse relatively increase.
Therefore, the brightness (that is black level (black level) brightness) at shutoff (OFF) state of all discharge cells of Plasmia indicating panel increases relatively.This causes the degeneration of contrast-response characteristic and produces image retention.
Therefore, propose a kind of method that only in a son field of a frame, applies described rising pulse, made it improve the contrast-response characteristic of part.Yet, on specific gray level, may produce erroneous discharge.
Summary of the invention
In one aspect, a kind of method that drives plasma display system, this plasma display device utilization is time-divided into a frame display image of a plurality of sons field, this method comprises: during first sub reset cycle of a plurality of sons field, will comprise that first reset pulse of rising pulse and falling pulse is applied to scan electrode; During reset cycle, will comprise that second reset pulse of rising pulse and falling pulse is applied to scan electrode except unlatching that and then turn-offs son in all the other sons of this first son; And during reset cycle, will comprise that the 3rd reset pulse of falling pulse is applied to scan electrode except the son that applied first reset pulse and second reset pulse therebetween another son outside the venue.
This method further comprises: before the reset cycle of this first son field, the first pre-reset pulse is applied to scan electrode; And with this first pre-reset pulse correspondingly, the opposite polarity second pre-reset pulse of polarity and this first pre-reset pulse is applied to keeps electrode.
This first son field can be the son field of minimum gray level weight.
Sub the scope that applies this second reset pulse at Zi Chang can be from the 5th sub a plurality of sub that arranges with the ascending order of gray level weight to later son field, the 5th son field.
The crest voltage of the rising pulse of this second reset pulse can be lower than the crest voltage of the rising pulse of this first reset pulse.
This first pre-reset pulse can be a negative polarity.
This first pre-reset pulse can be to have the falling pulse of drop-out voltage gradually.
The falling pulse of the 3rd reset pulse can descend from predetermined bias.
This predetermined bias can equal to keep voltage substantially.
On the other hand, a kind of method of plasma display system that drives at a plurality of image duration of display image comprises: will comprise that first reset pulse of rising pulse and falling pulse is applied to scan electrode during the reset cycle of first frame of these a plurality of frames; And second reset pulse that will comprise falling pulse during all reset cycles of second frame after this first frame is applied to scan electrode.
The falling pulse of this second reset pulse can descend from predetermined bias.
This predetermined bias can equal to keep voltage substantially.
This method may further include: during the reset cycle of the first son field of the 3rd frame after this second frame the 3rd reset pulse and the 4th reset pulse are applied to scan electrode.
The 3rd reset pulse and the 4th reset pulse can each all comprise the rising pulse.
The crest voltage of the 3rd reset pulse can be higher than the crest voltage of the 4th reset pulse.
Difference between the crest voltage of the crest voltage of the 3rd reset pulse and the 4th pulse can be less than or equal to 100V.
The 3rd reset pulse can comprise square wave, and the 4th reset pulse can comprise the rising pulse.
The time cycle that applies the square wave of the 3rd reset pulse betwixt can be shorter than the time cycle of the rising pulse that applies the 4th reset pulse therebetween.
Aspect another, a kind of driving comprises in the method for plasma display system of a plurality of image duration of display image: during the reset cycle of first frame of these a plurality of frames, will comprise that first reset pulse of rising pulse and falling pulse is applied to scan electrode; During all reset cycles of second round after this first frame, second reset pulse that will comprise at least two rising pulses is applied to scan electrode, and the time cycle ratio that wherein applies a rising pulse of this second reset pulse betwixt applies the time cycle weak point of the rising pulse of this first reset pulse therebetween.
For each son, the number range of the rising pulse of this second reset pulse can from 2 to 3.
This method may further include: during first sub reset cycle of the 3rd frame behind this second frame, the 3rd reset pulse and the 4th reset pulse are applied to scan electrode.
The 3rd reset pulse and the 4th reset pulse can each all comprise the rising pulse.
The crest voltage of the 3rd reset pulse can be higher than the crest voltage of the 4th reset pulse.
Difference between the crest voltage of the crest voltage of the 3rd reset pulse and the 4th pulse can be less than or equal to 100V.
The 3rd reset pulse can comprise square wave, and the 4th reset pulse can comprise the rising pulse.
The time cycle that applies the square wave of the 3rd reset pulse betwixt can be shorter than the time cycle of the rising pulse that applies the 4th reset pulse betwixt.
On the other hand, a kind of method of plasma display system that drives at a plurality of image duration of display image comprises: during the reset cycle of first frame of these a plurality of frames, will comprise that first reset pulse of rising pulse and falling pulse is applied to scan electrode; And during the reset cycle of at least one height field of the second round after this first frame, second reset pulse rather than first reset pulse that will comprise falling pulse are applied to scan electrode, when wherein having the variation from a frame to another frame, the number of second reset pulse increases at every turn.
When having the variation from a frame to another frame, the number of the rising pulse of this second reset pulse can increase by one at every turn.
This second reset pulse can at first apply in the son of high grade grey level weight.
Can in one or more sons field of a frame, apply this first reset pulse.
The falling pulse of this second reset cycle can descend from predetermined bias.
This predetermined bias can equal to keep voltage substantially.
Description of drawings
The application comprises accompanying drawing to provide further understanding of the present invention, and it is merged in and constitutes the part of this instructions, and accompanying drawing shows embodiments of the invention, and works with instructions one and to explain principle of the present invention.
Fig. 1 shows the Plasmia indicating panel according to an embodiment;
Fig. 2 shows the method according to embodiment gray level of presentation video in Plasmia indicating panel;
Fig. 3 shows the plasma display system according to an embodiment;
Fig. 4 shows the method according to the driving plasma display system of first embodiment;
Fig. 5 shows the method that drives plasma display system according to second embodiment;
Fig. 6 is used for the regional A of comparison diagram 5 and the figure of B;
Fig. 7 is the figure that is used for explaining in detail according to method first son of the driving plasma display system of the 3rd embodiment;
Fig. 8 shows the method according to the driving plasma display system of the 4th embodiment;
Fig. 9 is the figure that is used for the regional A of detailed key drawing 8;
Figure 10 shows the method according to the driving plasma display system of the 5th embodiment;
Figure 11 is the figure that is used for explaining in detail the area B of Figure 10;
Figure 12 shows the method according to the driving plasma display system of the 6th embodiment;
Figure 13 shows the method according to the driving plasma display system of the 7th embodiment;
Figure 14 is the figure that is used for explaining in detail the regional A of Figure 13; And
Figure 15 is used for explaining in detail the figure that depends on according to the drive waveforms of the method for the driving plasma display system of the 7th embodiment.
Embodiment
Now will be in detail with reference to embodiments of the invention, its example is illustrated in the accompanying drawing.
Fig. 1 shows the Plasmia indicating panel according to an embodiment.
With reference to figure 1, Plasmia indicating panel comprises front panel 100 and rear panel 110, and their joined in parallel with given therebetween distance toward each other.Front panel 100 comprises preceding substrate 101, and it is a display surface.Rear panel 110 comprises metacoxal plate 111, and it constitutes the rear surface.Form a plurality of scan electrodes 102 and a plurality of electrode 103 of keeping thereon on the prebasal plate 101 of display image in pairs, to form a plurality of electrode pairs of keeping.On meron 111, arrange a plurality of addressing electrodes 113, to intersect with described a plurality of electrode pairs of keeping.
On the meron 111 of plate 110, be formed parallel to each other a plurality of bar shapeds or well form drag blend stop 112 in the back, to form a plurality of discharge spaces, that is, and a plurality of discharge cells.With a plurality of addressing electrodes 113 that barrier rib 112 is arranged abreast, it is used to carry out address discharge to produce vacuum ultraviolet.
The upper surface of meron 111 is coated with red (R), green (G) and blue (B) fluorophor 114, is used for launching during the generation of keeping discharge being used for the visible light that image shows.Dielectric layer 115 under forming between addressing electrode 113 and the fluorophor 114 is with protection addressing electrode 113.
In the Plasmia indicating panel of said structure, form a plurality of discharge cells with matrix form.To comprise that the driver that is used for predetermined pulse is provided to the driving circuit of discharge cell is attached to described Plasmia indicating panel, thereby drive Plasmia indicating panel.
Fig. 2 shows the method for presentation video gray level in Plasmia indicating panel according to an embodiment.
With reference to figure 2, drive Plasmia indicating panel with a plurality of sub the frame that is divided into discharge time with different numbers.Each son field is subdivided into reset cycle of being used for producing equably discharge, be used to select the addressing period of discharge cell and be used for representing keeping the cycle of gray level according to the number of discharge.
For example, if show image, then will (for example, 16.67ms) be divided into eight son SF1 to SF8 corresponding to frame period of 1/60 sec with 256 gray levels.Each height field of SF1 to SF8, these eight son fields is subdivided into reset cycle, addressing period and keeps the cycle.
The duration of reset cycle equals the duration of reset cycle in other son fields in the son field.The duration of the addressing period in the son field equals the duration of addressing period in other son fields.But keeping the duration in cycle in each son can differ from one another, and the number of keeping pulse that distributes during the cycle of keeping of each son can differ from one another.For example, in each son field, keep the cycle with 2
nRatio increase (wherein, you=0,1,2,3,4,5,6,7).Although top reference one frame comprises the situation of 8 son fields and is described that the present invention is not limited to this.One frame can comprise 10 to 12 son fields.
Fig. 3 shows the plasma display system according to an embodiment.
With reference to figure 3, comprise Plasmia indicating panel 300, time schedule controller 301, data driver 302, scanner driver 303, keep a driver 304 and a son map unit 305 with scan electrode according to the plasma display system of an embodiment.
Time schedule controller 301 receives vertical/horizontal synchronizing signal and preset clock signal.Control 121 produces timing control signal CTRX, CTRY and CTRZ, is used to control each driver 302,303 and 304, and this timing control signal CTRX, CTRY and CTRZ are applied to corresponding drivers 302,303 and 304 respectively.
Thereby, time schedule controller 301 Control Driver 302,303 and 304 operation.In addition, time schedule controller 301 gated sweep drivers 303 will be will only comprise that the reset pulse of falling pulse is applied to scan electrode Y1 to Yn during the part of a plurality of sons field.This causes preventing the erroneous discharge that causes owing to non stationary discharge.
Data driver 122 is applied to addressing electrode X1 to Xm with data pulse, this data pulse timing control signal CTRX that to be response receive from time schedule controller 301 and take a sample and latch.
Under the control of time schedule controller 301, scanner driver 303 is controlled at the reset pulse that is applied to scan electrode Y1 to Yn during the reset cycle.
Under the control of time schedule controller 301, during addressing period, the scanning impulse that scanner driver 303 will have scanning voltage-Vy is applied to scan electrode Y1 to Yn in succession.
Under the control of time schedule controller 301, during the cycle of removing and addressing period of reset cycle, keep driver 304 and will keep the bias voltage of voltage Vs and be applied to and keep electrode Z.During the cycle of keeping, scanner driver 303 and keep driver 304 and alternately operate is applied to scan electrode Y1 to Yn and keeps electrode Z will keep pulse.
In a son, last keep discharge and finish, keep driver 304 then and erasing pulse can be applied to this and keep electrode Z.
A son map unit 305 is to each son mapping video data, and this video data is handled through the predetermined picture processing procedure, yet exports the video data of this mapping.
For example, son field map unit 305 is shone upon video data to each son field after the video data of importing from external signal processor (not shown) (for example video signal controller (VSC) chip (not shown)) is carried out motion process, average power level (APL) processing and halftoning correcting process etc.Then, a son map unit 305 produces the video data of mapping, and with its output.
Fig. 4 illustrates the method according to the driving plasma display system of first embodiment.
With reference to figure 4, at a plurality of image duration of display image, and each frame is divided into a plurality of sons with different emitting times according to the driving method of the plasma display system of first embodiment.Each frame can be divided into 10 or 12 son fields with different emitting times.
Each son field be divided into reset cycle of being used for the whole screen of initialization, be used to select the addressing period of the unit that will discharge, the cycle of keeping of discharge that is used to keep selected unit and the erase cycle that is used for the wall electric charge in the erasure discharge unit, carry out driving method according to first embodiment.
Driving method according to first embodiment comprises: the son field in the minimum gray level weight (for example, first a son SF1 during) reset cycle, will comprise that the first reset pulse RP1 of rising pulse and falling pulse is applied to scan electrode; And in son field, will only comprise that the 3rd reset pulse RP3 of falling pulse is applied to scan electrode except this first son SF1.
The falling pulse of the 3rd reset pulse RP3 be maintained at as bias voltage keep voltage Vs, descend from keeping voltage Vs then.Have the number of applications of high-tension rising pulse by minimizing, improved contrast-response characteristic.
Apply under the rising pulse situation once in an image duration, may produce erroneous discharge in specific gray level.In order to prevent this erroneous discharge, during the reset cycle of the unlatching field of and then turn-offing the son field, will comprise that the second reset pulse RP2 of rising pulse and falling pulse is applied to scan electrode.
For example, under the situations of all opening in all son fields of a frame, a son field that has in the son of low relatively gray level may be unsettled.But, because all sub behind this unsettled son field open, so owing to many discharges of keeping pulse produce stable discharge.
But, as shown in Figure 4, if three son SF1-SF3 open in the SF1-SF5 of the son field of low relatively gray level weight, and the SF5 unlatching of the 5th son, then the number of keeping pulse that produces in the son field after opening a son SF3 is not enough.This causes producing erroneous discharge in opening a son SF5.
By applying the second reset pulse RP2 that comprises rising pulse and falling pulse among of the unlatching behind the unstable stator field SF3 SF5, prevented the generation of erroneous discharge in opening a son SF5.
Although for ease of explanation, son SF1, SF2, SF3 and SF5 are set to open the son field alternatively at Fig. 4, first embodiment of the invention is not limited to this.
For example, suppose that first son the SF1 opens, and the 5th a son SF5 opens once more, during the reset cycle of second to the 4th a son SF2-SF4, apply the 3rd reset pulse RP3 that only comprises falling pulse.Thereby, have among the SF5 at the 5th son very big may to produce erroneous discharge.
Therefore, in the 5th a son SF5, apply the second reset pulse RP2 that comprises rising pulse and falling pulse, thereby prevent from the 5th a son SF5, to produce erroneous discharge.
In first embodiment, the son field that applies the 3rd reset pulse RP3 therebetween can be low gray level field.In the SF1-SF12 of the son field of a frame of arranging with the ascending order of gray level weight, the scope that low gray level is sub can be from the first son field to the 4th a son SF1-SF4.
In a son SF1-SF12 of a frame of arranging with the ascending order of gray level weight, a son scope that applies the second reset pulse RP2 therebetween can be from the 5th to the 12 a son SF5-SF12.
If in a son SF1 of minimum gray level, apply the first reset pulse RP1 that comprises rising pulse and falling pulse, and in the first to fourth son field in a son SF1-SF12 of a frame of arranging with the ascending order of gray level weight, apply the 3rd reset pulse RP3 that only comprises falling pulse, owing to unsettled discharge, there is a strong possibility erroneous discharge occurs so.Therefore, apply the second reset pulse RP2 in the 5th to the 12 son field in a son SF1-SF12 of a frame of arranging with the ascending order of gray level weight.
Therefore, the number of the rising pulse that apply an image duration has been considerably reduced, and makes contrast-response characteristic be improved, and has prevented the erroneous discharge on particular gray level.
Fig. 5 shows the method according to the driving plasma display system of second embodiment.
As shown in Figure 5, in an a plurality of son SF1-SF12, have respectively the minimum gray level weight a son SF1 reset cycle and and then turn-off during reset cycle of unlatching field SF5 of a son SF4, apply the first reset pulse RP1 and the second reset pulse RP2, make the crest voltage Vpeak1 of the rising pulse of the reset pulse RP1 that wins be higher than the crest voltage Vpeak2 of the rising pulse of the second reset pulse RP2.
In first embodiment shown in Fig. 4, in order to prevent to produce erroneous discharge, equal the crest voltage of the second reset pulse RP2 that during the reset cycle of the 5th a son SF5, applies in the crest voltage of the rising pulse of the first reset pulse RP1 that applies during the reset cycle of a minimum gray level SF1.Yet, be different from first embodiment, in Fig. 5, by during the reset cycle of a unlatching SF5 who and then turn-offs a son SF4, apply the second reset pulse RP2 with crest voltage Vpeak2 and prevent to produce flicker (flicker), this crest voltage Vpeak2 is less than the crest voltage Vpeak1 of the first reset pulse RP1 that applies during the reset cycle of a minimum gray level SF1.
Fig. 6 is used for the regional A of comparison diagram 5 and the figure of B.As shown in Figure 6, at regional A (promptly, a minimum gray level SF1) the crest voltage Vpeak1 of the first reset pulse RP1 that applies in is higher than the crest voltage Vpeak2 of the second reset pulse RP2 that applies in area B (that is, and then turn-offing the unlatching SF5 of a son SF4).
Fig. 7 is the figure that is used for explaining in detail according to first son of the method for the driving plasma display system of the 3rd embodiment.
As shown in Figure 7, as shown in Figures 4 and 5 before the first reset pulse RP1 that will comprise rising pulse and falling pulse during the reset cycle of first a son SF1 is applied to scan electrode, the first pre-reset pulse PRP1 is applied to scan electrode, and correspondingly the opposite polarity second pre-reset pulse PRP2 of polarity and this first pre-reset pulse PRP1 is applied to this first pre-reset pulse PRP1 and keeps electrode.
The first pre-reset pulse PRP1 is a negative polarity, and can be the falling pulse that descends gradually from ground level voltage GND.The second pre-reset pulse PRP2 is a positive polarity, and can be square wave.
As mentioned above, owing to before the reset cycle of first a son SF1, applied this first and second pre-reset pulse PRP1 and PRP2, thus reduced the crest voltage of the rising pulse of the first reset pulse RP1 that during the reset cycle of first a son SF1, applies.This will cause the reduction of black level brightness in reseting procedure.
Fig. 8 shows the method according to the driving plasma display system of the 4th embodiment.
As shown in Figure 8, at a plurality of image duration of display image, and each frame is divided into the son with different emitting times according to the method for the driving plasma display system of the 4th embodiment.Each frame can be divided into 10 or 12 son fields with different emitting times.
According to the driving method of the 4th embodiment be utilize with each sub-field fine be reset cycle of being used for the whole screen of initialization, be used to select the unit that will discharge addressing period, be used to keep cycle of keeping of discharge of selected unit and the erase cycle that is used for the wall electric charge in the erasure discharge unit to carry out.
During each reset cycle of the son SF1-SF12 of first frame, will comprise that the first reset pulse RP1 of rising pulse and falling pulse applies scan electrode according to the driving method of the 4th embodiment.
Then, second frame after first frame is to turn-off under the situation of unit (OFF-cell), during the reset cycle of each son SF1-SF12 of second frame, the second reset pulse RP2 that only comprises falling pulse is applied to scan electrode.
For example, if with corresponding first frame of part display surface (not shown) of Plasmia indicating panel be onunit (ON-cell), then in 12 son fields of first frame, apply the first reset pulse RP1, and this second frame is to turn-off the unit in whole front panel, and window displayed pattern (window pattern) performance is as the image retention pattern on the panel display surface of part.
Therefore, existing as first frame of onunit to the time, in whole son SF1-SF12 of second frame, apply the second reset pulse RP2 that only comprises falling pulse as the variation of second frame that turn-offs the unit.
Fig. 9 is the figure that is used for the regional A of detailed key drawing 8.As shown in Figure 9, the second reset pulse RP2 that applies in whole son SF1-SF12 of second frame only comprises falling pulse.
This falling pulse remain on as bias voltage keep voltage Vs, and descend gradually from keeping voltage Vs then.
As mentioned above, since with have every pulse 0.1cd/m
2Or the first reset pulse RP1 of higher brightness compares, and the second reset pulse RP2 that applies in second frame has about every pulse 0cd/m
2Brightness, therefore the application of the second reset pulse RP2 has reduced when existing from as the image retention level of first frame of opening the unit to as the variation of second frame of shutoff unit the time, and has improved contrast-response characteristic.
Figure 10 shows the method according to the driving plasma display system of the 5th embodiment, and Figure 11 is the figure that is used for the area B of specific explanations Figure 10.
As shown in Figure 10, during the reset cycle of each son SF1-SF12 of first frame, will comprise that the first reset pulse RP1 of rising pulse and falling pulse is applied to scan electrode according to the driving method of the 5th embodiment.
Then, second frame after this first frame is to turn-off under the situation of unit, will comprise that the second reset pulse RP2 of at least two rising pulses is applied to scan electrode during the reset cycle of all son SF1-SF12 of second frame.
As shown in Figure 11, the time cycle A that applies therebetween among son the SF1-SF12 of second frame of rising pulse of the second reset pulse RP2 is shorter than the time cycle B among the son SF1-SF12 of first frame of the rising pulse that applies the first reset pulse RP1 therebetween.
For each son of second frame, the scope of the number of the rising pulse that applies in all son SF1-SF12 of second frame can from 1 to 3.
Because the rising pulse that applies in the son field of first frame has each pulse 0.1cd/m
2Brightness, therefore owing at onunit with the brightness skew when turn-offing units alternately ground and changing each other, may occur glimmering, make contrast-response characteristic to worsen.
Thereby, by applying the second reset pulse RP2 of 2 or 3 rising pulses that comprise brightness, produce weak discharge for several times with about every pulse 0.4cd/m2.Consequently, compare with strong discharge once, weak discharge has reduced the level of dark image retention (dark image retention) for several times, and has prevented because brightness is offset the flicker that produces.
Figure 12 shows the method according to the driving plasma display system of the 6th embodiment.
(a) of Figure 12 shows at the last son of second frame and the reset pulse of the prior art that applies of first sub-field period of the 3rd frame of second frame and then.
As shown in Figure 12 (a), after second reset pulse that in second frame, applies as shown in Fig. 8 and 10, during first sub reset cycle of the 3rd frame behind second frame, apply a reset pulse.In this case, when exist from as second frame that turn-offs the unit to as the variation of the 3rd frame of onunit the time, be difficult to change discharge.
(b) of Figure 12 shows the reset pulse according to the 6th embodiment that first sub-field period of the 3rd frame behind the last son of second frame and this second frame applies.As shown in Figure 12 (b), apply the 3rd reset pulse RP3 and the 4th reset pulse RP4 at first sub-field period of the 3rd frame.
Each comprises the rising pulse the 3rd reset pulse RP3 and the 4th reset pulse RP4.
The first peak threshold voltage Vpeak1 of the 3rd reset pulse RP3 is than the second crest voltage Vpeak2 height of the 4th reset pulse RP4.
Poor (Vpeak1-Vpeak2) between the first peak threshold voltage Vpeak1 and the second crest voltage Vpeak2 can be less than or equal to 100V.
As mentioned above, owing to applied, so solved when existing from the problem of second frame of the conduct shutoff unit non stationary discharge to as the variation of the 3rd frame of onunit the time than the high 100V of the 4th reset pulse RP4 or less than the 3rd reset pulse RP3 of 100V.
Figure 13 shows the method according to the driving plasma display system of the 7th embodiment, and Figure 14 is the figure that is used for explaining in detail the regional A of Figure 13.
As shown in Figure 13, at a plurality of image duration of display image, and each frame is divided into the son with different emitting times according to the driving method of the plasma display system of the 7th embodiment.Each frame can be divided into 10 or 12 son fields with different emitting times.
According to the driving method of the 7th embodiment can utilize with each sub-field fine be reset cycle of being used for the whole screen of initialization, be used to select the unit that will discharge addressing period, be used to keep cycle of keeping of discharge of selected unit and the erase cycle that is used for the wall electric charge in the erasure discharge unit to carry out.
During each reset cycle of the son SF1-SF12 of first frame, will comprise that the first reset pulse RP1 of rising pulse and falling pulse is applied to scan electrode according to the driving method of the 7th embodiment.
Then, second frame after first frame is to turn-off under the situation of unit (OFF-cell), in at least one height field of second frame (for example, among Figure 13 the 12 SF12) during reset cycle, the second reset pulse RP2 rather than the first reset pulse RP1 that only comprises falling pulse is applied to scan electrode.
For example, if first frame is onunit (ON-cell), then in 12 son fields of first frame, apply 12 first reset pulse RP1 respectively, and second frame is to turn-off the unit, then occurs the image retention pattern in second frame.
When exist from as first frame of onunit to as the variation of second frame that turn-offs the unit time, apply the second reset pulse RP2 since the last son field of second frame.
In other words, if second frame comprises 12 son fields, then in 11 son fields of this second frame, apply the first reset pulse RP1, and in remaining one sub, apply the second reset pulse RP2.
Next, if the 3rd frame behind second frame is to turn-off the unit, then in 10 son fields of the 3rd frame, applies the first reset pulse RP1, and in remaining two son fields, apply the second reset pulse RP2.
If the son field behind the 3rd frame is in the state that turn-offs the unit, when then having the variation from a frame to another frame, the number of this second reset pulse can increase by one at every turn.
As shown in Figure 14, the second reset pulse RP2 that replaces the first reset pulse RP1 to apply at least one height field of second frame only comprises falling pulse.
This falling pulse remain on as bias voltage keep voltage Vs, and descend gradually from keeping voltage Vs.
Since with have every pulse 0.1cd/m2 or more the first reset pulse RP1 of high brightness compare, the second reset pulse RP2 that only comprises falling pulse has about every pulse 0cd/m2 or bigger brightness, therefore, the application of the second reset pulse RP2 has reduced when existing from as first frame of the onunit image retention level to as the variation of second frame that turn-offs the unit time.
Figure 15 is used for explaining in detail the figure that depends on according to the drive waveforms of the method for the driving plasma display system of the 7th embodiment.
As shown in Figure 15 (a), can be applied to the second reset pulse RP2 that applies at least one height field of second frame with backward from the son of high grade grey level weight.
For example, if a frame comprises 12 sons, and be to turn-off the unit as the frame subsequently of first frame of onunit, then during the reset cycle of the last son SF12 of this frame subsequently, apply this second reset pulse RP2.
If the frame subsequently as the frame that turn-offs the unit is an onunit, then a last son SF12 applies the second reset pulse RP2 during the reset cycle with the 11 a son SF11 of backward in the reset cycle of the last son SF12 of this frame subsequently with from this.Therefore, proportional as the increase number of the increase number of the frame that turn-offs the unit and the second reset pulse RP2.
On the other hand, if change to onunit, then in all son fields of this frame subsequently, apply the first reset pulse RP1 as the frame subsequently of a frame that turn-offs the unit.
Although repeat unchangeably as the frame that turn-offs the unit, make that the number of the first reset pulse RP1 is reduced when the variation of existence from a frame to another frame, and the number of the second reset pulse RP2 increases, and still, applies at least one first reset pulse RP1 in an image duration.
For example, always turn-offing under the situation of unit as the second to the 15 frame after first frame of onunit, in a son field of the 11 frame, apply the first reset pulse RP1, and in all the other 11 son fields of the 11 frame, apply the second reset pulse RP2.
Subsequently, the 12 frame after the 11 frame is to turn-off under the situation of unit, does not apply the second reset pulse RP2 in all son fields of the 12 frame.In the mode identical, in a son field of the 12 frame, apply the first reset pulse RP1, and in all the other 11 son fields of the 12 frame, apply the second reset pulse RP2 with the 11 frame.
As mentioned above, owing to apply the second reset pulse RP2, therefore prevented the generation of erroneous discharge, and reduced and removed dark image retention required time with a son backward from high grade grey level weight.
Can otherwise apply the second reset pulse RP2.This will illustrate with reference to (b) of Figure 15.
As shown in Figure 15 (b), when the variation that exists from a frame to another frame, can be applied to second reset pulse that applies at least one height field of second frame, and not consider the order of son.
For example, if a frame comprises 12 son fields, and the frame subsequently as first frame of onunit is to turn-off the unit, then can during the reset cycle of the last son SF12 of this frame subsequently, apply the second reset pulse RP2, and can during the reset cycle of the tenth a son SF10 of this frame subsequently, apply the second reset pulse RP2.
Afterwards, if be onunit, then can during the reset cycle of the 3rd a son SF3 of this frame subsequently, apply the second reset pulse RP2 as the frame subsequently of the frame that turn-offs the unit.Therefore, proportional as the increase number of the increase number of the frame that turn-offs the unit and the second reset pulse RP2.
On the other hand, when exist from as the frame that turn-offs the unit to as the variation of the frame of onunit the time, applying the first reset pulse RP1 as in all sons of the frame of onunit.
Therefore, prevented the generation of erroneous discharge, and reduced and removed the required time of dark image retention.
Aforesaid embodiment and advantage only are exemplary, and do not think and constitute restriction of the present invention.The present invention can easily be applied to the device of other types.The description of previous embodiment is intended that indicative, rather than the scope of restriction claim.To those skilled in the art, many replacement, modifications and variations all will be conspicuous.In the claims, device adds the function statement and is intended that structure that covers the function that execution described herein quotes from and the structure that not only structural equivalence also has equivalence.And, unless in the qualification of claim, clearly quoted from " means (means) ", this qualification should be in 35 USC, 112 (6) times explanations.
Claims (32)
1. method that drives plasma display system, this plasma display device utilization are time-divided into a frame display image of a plurality of sons, and this method comprises:
During first sub reset cycle of a plurality of sons field, will comprise that first reset pulse of rising pulse and falling pulse is applied to scan electrode;
During reset cycle, will comprise that second reset pulse of rising pulse and falling pulse is applied to scan electrode except unlatching that and then turn-offs son in all the other sons of this first son; And
During except son another sub the reset cycle outside the venue that has applied first reset pulse and second reset pulse therebetween, will comprise that the 3rd reset pulse of falling pulse is applied to scan electrode.
2. the method for claim 1 further comprises: before the reset cycle of this first son field, the first pre-reset pulse is applied to scan electrode; And with this first pre-reset pulse correspondingly, the opposite polarity second pre-reset pulse of polarity and this first pre-reset pulse is applied to keeps electrode.
3. method as claimed in claim 2, wherein, this first son field is the son field of minimum gray level weight.
4. method as claimed in claim 2, wherein, the scope of son that applies this second reset pulse therebetween is from the 5th son a plurality of sons of arranging with the ascending order of gray level weight to the 5th a son later son.
5. method as claimed in claim 2, wherein, the crest voltage of the rising pulse of this second reset pulse is lower than the crest voltage of the rising pulse of this first reset pulse.
6. method as claimed in claim 2, wherein, this first pre-reset pulse is a negative polarity.
7. method as claimed in claim 6, wherein, this first pre-reset pulse is to have the falling pulse of drop-out voltage gradually.
8. method as claimed in claim 2, wherein, the falling pulse of the 3rd reset pulse descends from predetermined bias.
9. method as claimed in claim 8, wherein, this predetermined bias is substantially equal to keep voltage.
10. a driving is in the method for plasma display system of a plurality of image duration of display image, and this method comprises:
During the reset cycle of first frame of these a plurality of frames, will comprise that first reset pulse of rising pulse and falling pulse is applied to scan electrode; And
Second reset pulse that will comprise falling pulse during all reset cycles of second frame after this first frame is applied to scan electrode.
11. method as claimed in claim 10, wherein, the falling pulse of this second reset pulse descends from predetermined bias.
12. method as claimed in claim 11, wherein, this predetermined bias is substantially equal to keep voltage.
13. method as claimed in claim 10 further comprises: during the reset cycle of the first son field of the 3rd frame after this second frame the 3rd reset pulse and the 4th reset pulse are applied to scan electrode.
14. method as claimed in claim 13, wherein, each of the 3rd reset pulse and the 4th reset pulse comprises the rising pulse.
15. method as claimed in claim 14, wherein, the crest voltage of the 3rd reset pulse is higher than the crest voltage of the 4th reset pulse.
16. method as claimed in claim 15, wherein, the difference between the crest voltage of the crest voltage of the 3rd reset pulse and the 4th reset pulse is less than or equal to 100V.
17. method as claimed in claim 13, wherein, the 3rd reset pulse comprises square wave, and the 4th reset pulse comprises the rising pulse.
18. method as claimed in claim 17, wherein, the time cycle ratio that applies the square wave of the 3rd reset pulse betwixt applies the time cycle weak point of the rising pulse of the 4th reset pulse betwixt.
19. a driving is in the method for plasma display system of a plurality of image duration of display image, this method comprises:
During the reset cycle of first frame of these a plurality of frames, will comprise that first reset pulse of rising pulse and falling pulse is applied to scan electrode; And
During all reset cycles of second frame after this first frame, will comprise that second reset pulse of at least two rising pulses is applied to scan electrode,
Wherein, the time cycle that applies a rising pulse of this second reset pulse betwixt lacked than the time cycle of the rising pulse that applies this first reset pulse betwixt.
20. method as claimed in claim 19, wherein, for each son field, the scope from 2 to 3 of the number of the rising pulse of this second reset pulse.
21. method as claimed in claim 19 further comprises: during first sub reset cycle of the 3rd frame behind this second frame, the 3rd reset pulse and the 4th reset pulse are applied to scan electrode.
22. method as claimed in claim 21, wherein, each of the 3rd reset pulse and the 4th reset pulse comprises the rising pulse.
23. method as claimed in claim 22, wherein, the crest voltage of the 3rd reset pulse is higher than the crest voltage of the 4th reset pulse.
24. method as claimed in claim 23, wherein, the difference between the crest voltage of the crest voltage of the 3rd reset pulse and the 4th reset pulse is less than or equal to 100V.
25. method as claimed in claim 21, wherein, the 3rd reset pulse comprises square wave, and the 4th reset pulse comprises the rising pulse.
26. method as claimed in claim 25, wherein, the time cycle ratio that applies the square wave of the 3rd reset pulse betwixt applies the time cycle weak point of the rising pulse of the 4th reset pulse betwixt.
27. a driving is in the method for plasma display system of a plurality of image duration of display image, this method comprises:
During the reset cycle of first frame of these a plurality of frames, will comprise that first reset pulse of rising pulse and falling pulse is applied to scan electrode; And
During the reset cycle of at least one height field of second frame after this first frame, will comprise second reset pulse of falling pulse, rather than first reset pulse, be applied to scan electrode,
Wherein when the variation that at every turn exists from a frame to another frame, the number of second reset pulse increases.
28. method as claimed in claim 27, wherein, from a frame when another frame changes, the number of this second reset pulse is each to increase by one.
29. method as claimed in claim 28, wherein, this second reset pulse at first is applied in the son of high grade grey level weight.
30. method as claimed in claim 29 wherein applies this first reset pulse in one or more sons field of a frame.
31. method as claimed in claim 27, wherein the falling pulse of this second reset pulse descends from predetermined bias.
32. method as claimed in claim 31, wherein this predetermined bias is substantially equal to keep voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710084041 CN101246665A (en) | 2007-02-12 | 2007-02-12 | Method for driving plasma display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710084041 CN101246665A (en) | 2007-02-12 | 2007-02-12 | Method for driving plasma display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101246665A true CN101246665A (en) | 2008-08-20 |
Family
ID=39947091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710084041 Pending CN101246665A (en) | 2007-02-12 | 2007-02-12 | Method for driving plasma display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101246665A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024417A (en) * | 2010-12-29 | 2011-04-20 | 四川虹欧显示器件有限公司 | Method for preventing false electric discharge of PDP (plasma display panel) screen |
| CN102543627A (en) * | 2010-12-29 | 2012-07-04 | 四川虹欧显示器件有限公司 | Method for effectively removing incorrect electric discharge of plasma display panel (PDP) module |
| CN103198784A (en) * | 2013-04-09 | 2013-07-10 | 四川虹欧显示器件有限公司 | Method for eliminating low discharge occurring at switching moment of display frames |
-
2007
- 2007-02-12 CN CN 200710084041 patent/CN101246665A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024417A (en) * | 2010-12-29 | 2011-04-20 | 四川虹欧显示器件有限公司 | Method for preventing false electric discharge of PDP (plasma display panel) screen |
| CN102543627A (en) * | 2010-12-29 | 2012-07-04 | 四川虹欧显示器件有限公司 | Method for effectively removing incorrect electric discharge of plasma display panel (PDP) module |
| CN103198784A (en) * | 2013-04-09 | 2013-07-10 | 四川虹欧显示器件有限公司 | Method for eliminating low discharge occurring at switching moment of display frames |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100492466C (en) | Plasma display device and method of driving the same | |
| CN101017630A (en) | Plasma display apparatus having function of compensating image sticking and method for the same | |
| EP1736956A1 (en) | Plasma display apparatrus and method of driving the same | |
| CN100552759C (en) | Plasma display panel device | |
| US20060145955A1 (en) | Plasma display apparatus and driving method thereof | |
| KR100747168B1 (en) | Driving Apparatus and Method for Plasma Display Panel | |
| CN100437693C (en) | Driving device and method for plasma display panel | |
| US20060232516A1 (en) | Plasma display apparatus, plasma display panel, and driving device and method thereof | |
| CN100492469C (en) | Plasma display apparatus | |
| KR100680709B1 (en) | Driving Device for Plasma Display Panel | |
| CN101246665A (en) | Method for driving plasma display device | |
| US7652640B2 (en) | Plasma display apparatus and method of driving the same | |
| US20080191973A1 (en) | Method of driving plasma display apparatus | |
| CN100514411C (en) | Plasma display apparatus and driving method thereof | |
| EP1770679A2 (en) | Plasma display apparatus and method of driving the same | |
| US20080191970A1 (en) | Method of driving plasma display apparatus | |
| US20070205966A1 (en) | Plasma display apparatus and driving method thereof | |
| KR100705808B1 (en) | Plasma Display Apparatus and Driving Method Thereof | |
| KR100747269B1 (en) | Plasma Display Apparatus and Driving Method thereof | |
| US20080055204A1 (en) | Plasma display apparatus and method of driving the same | |
| KR100424264B1 (en) | Method for driving plasma display panel for improving initial state | |
| EP1956578A1 (en) | Method of driving plasma display apparatus | |
| KR100646319B1 (en) | Plasma Display Apparatus and Driving Method thereof | |
| KR100658357B1 (en) | Plasma display apparatus and driving method thereof | |
| CN100447835C (en) | Plasma display panel (pdp) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080820 |