CN1845226A - Plasma display apparatus and driving method thereof - Google Patents
Plasma display apparatus and driving method thereof Download PDFInfo
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- CN1845226A CN1845226A CNA2005101340016A CN200510134001A CN1845226A CN 1845226 A CN1845226 A CN 1845226A CN A2005101340016 A CNA2005101340016 A CN A2005101340016A CN 200510134001 A CN200510134001 A CN 200510134001A CN 1845226 A CN1845226 A CN 1845226A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A3/00—Breech mechanisms, e.g. locks
- F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
- F41A3/14—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
- F41A3/16—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks
- F41A3/18—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks hand-operated
- F41A3/20—Straight-pull operated bolt locks, i.e. the operating hand effecting only a straight movement parallel to the barrel axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
- F41A9/38—Loading arrangements, i.e. for bringing the ammunition into the firing position
- F41A9/39—Ramming arrangements
- F41A9/40—Ramming arrangements the breech-block itself being the rammer
Abstract
There is provided a plasma display apparatus and a driving method of the plasma display apparatus. The plasma display apparatus comprises a plasma display panel comprising a scan electrode and a sustain electrode and a scan pulse controller for controlling a width of a scan pulse applied to the scan electrode in address period of a predetermined subfield of the subfield group to be wider than the width of a scan pulse of other subfield in the frame.
Description
Technical field
The present invention relates to plasma display panel device.
Background technology
Usually, in Plasmia indicating panel, form barrier rib in front between plate and the rear panel with the component unit unit, and will such as the main inert gas of the mixed gas (Ne+He) of neon (Ne), helium (He) or neon and helium and in a small amount the inert gas of xenon be included in each unit.When being discharged by the HF voltage execution, inert gas produces the vibration ultraviolet ray, and the fluorophor that permission forms between barrier rib is launched light, creating section partial image thus.This Plasmia indicating panel can be made thinly and have light weight, therefore is considered to one of display device of future generation.
Fig. 1 has illustrated the structure of general Plasmia indicating panel.
As shown in Figure 1, in Plasmia indicating panel, front panel 100 cloth are provided with at front glass (just, wherein on the display surface of display image) with at scan electrode 102 with keep a plurality of electrode pairs of keeping that electrode 103 centerings form, and back on glassly be furnished with a plurality of addressing electrodes 113 intersecting what form the rear surface in the plate 100 in the back with a plurality of electrode pairs of keeping, and the distance of coupling parallel to each other of front panel and rear panel and fixed interval.
In the plate 110, being arranged in parallel is used to form a plurality of discharge spaces in the back, just, and the barrier rib 112 of the bar shaped of discharge cell (or well type).Be parallel to barrier rib 112 layouts and produce vacuum ultraviolet a plurality of addressing electrode 113 by carrying out address discharge.The upper surface that emission is used for being coated at the RGB fluorophor 114 of the visible light of address discharge display image rear panel 110.Be formed for protecting the following dielectric layer 115 of the addressing electrode 113 between addressing electrode 113 and fluorophor 114.
To be described in the method for concrete manifestation image gray levels in the above-mentioned Plasmia indicating panel with reference to figure 2.
Fig. 2 is the view of method that the concrete manifestation image gray levels of existing Plasmia indicating panel has been described.
As shown in Figure 2, be used for the method for presentation video gray level on existing Plasmia indicating panel, a frame is divided into several height field, each son field has different number of light emission times.Each son is divided into the reset cycle (RPD) that is used for all unit of initialization once more, is used to select the addressing period (APD) of discharge cell and is used for addressing period (SPD) according to discharge number concrete manifestation gray level.For example, when with 256 gray level display images, to be divided into 8 sons (SF1 is to SF8) corresponding to 1/60 second frame period (16.67ms), as shown in Figure 2, and each of 8 son fields (SF1 is to SF8) is divided into reset cycle, addressing period once more and is kept the cycle.
The reset cycle of each son field and addressing period equate in each son field.Because at addressing electrode be used to select to treat the address discharge of discharge cell as the cause of the voltage difference between the transparency electrode of scan electrode.In each son field, keep ratio (n=0,1,2,3,4,5,6, the 7) increase of cycle with 2n.Because the cycle of keeping is different in each son field, by adjusting keeping the cycle of each son field, just, the number of keeping discharge comes the presentation video gray level.
Fig. 3 shows the drive waveforms according to the method that drives Plasmia indicating panel.
Fig. 3 is the view that has illustrated according to the example of the drive waveforms that drives the method that has Plasmia indicating panel now.
As shown in Figure 3, by being divided into the reset cycle that is used for all unit of initialization, be used to select to treat the addressing period of discharge cell, the erase cycle that the addressing period and being used for that is used to keep the discharge of selected unit is wiped at the wall electric charge of discharge cell drives Plasmia indicating panel.
During the reset cycle, in the cycle of setting up, the rising edge waveform is added to all scan electrodes simultaneously.Weak dark discharge takes place in the discharge cell of whole screen by the rising edge waveform.Utilize and set up discharge, the wall electric charge of positive polarity is piled up with keeping on the electrode at addressing electrode, and the wall electric charge of negative polarity is piled up on scan electrode.
In the cycle of removing, after the rising edge waveform is provided, drop to negative edge waveform smaller or equal to the decline of the specific voltage level of ground (GND) level voltage from the positive polarity voltage of the crest voltage that is lower than the rising edge waveform and cause weak erasure discharge the unit, all wipe the wall electric charge that on scan electrode, too much forms thus.
In the unit, evenly stay the stable wall electric charge that causes address discharge by the mode of removing discharge.
In addressing period, the scanning impulse of negative polarity is added to scan electrode in proper order, and and another scanning impulse synchronous, and therefore the data pulse of positive polarity is added to addressing electrode.
When the voltage difference between scanning impulse and the data pulse is added to the wall voltage that produces in the reset cycle, in the discharge cell that has applied data pulse address discharge takes place.In the unit of selecting by address discharge, forms when applying the wall electric charge that generation is discharged when keeping voltage (Vs).Be provided to keep electrode positive polarity voltage (Vz) during cycle of removing and addressing period, prevent erroneous discharge in scan electrode by reducing voltage difference in scan electrode.
In addressing period, will keep pulse (Sus) and alternately be applied to scan electrode and keep electrode.With the wall voltage in the unit with keep pulse and add the unit of selecting by address discharge to, and therefore, no matter when apply each and keep pulse, at scan electrode with keep and keep discharge between the electrode, just, show and discharge.
Finish keep discharge after, in erase cycle, the voltage that will have the tilt waveform of narrow pulse width and low voltage level is provided to keeps electrode, wipes the wall electric charge in the unit of staying whole screen thus.
In the Plasmia indicating panel that is driven by drive waveforms, the width that is added to the scanning impulse (Vsc) of scan electrode in the addressing period in the son field of all frames equates in all son fields.The width of these existing scanning impulses as shown in Figure 4.
Fig. 4 is the view that the width of the scanning impulse that applies in addressing period in the method that drives existing Plasmia indicating panel has been described.
As shown in Figure 4, the width of the scanning impulse that applies in addressing period in the method that drives existing Plasmia indicating panel is set to equal W in all son fields.In other words because have the low relatively son that is weighted in the low gray level of concrete manifestation with because have in the son of relative high weighting concrete manifestation high grade grey level, the width of scanning impulse is equal to each other.
The width that is applied to the scanning impulse of scan electrode in above-mentioned addressing period is one that influences in the several factors that produces the wall electric charge in discharge cell.When the width of the scanning impulse (Vsc) that descends with reversed polarity when the scan reference voltage of removing end-of-pulsing and rising increases, the duration of address discharge increases, and therefore produces more wall electric charge in discharge cell.
But because in the conventional method, the width of all scanning impulses is set to equate in all sons and does not consider weighting, in other words, gray-scale value, therefore, address discharge (just, has in the son of low relatively gray-scale value) in initial son and becomes unstable.Therefore, increased the addressing shake because worsen.
Compare the son field of concrete manifestation high grade grey level, because low gray level has low relatively weighting and lower because keep the number of pulse, address discharge is unstable in the son field of the low gray level of concrete manifestation.Therefore, keep discharge in discharge cell, keep the unsettled possibility that becomes of discharging so exist because the wall quantity of electric charge that the cause of unsettled address discharge is piled up is not enough to carry out.Consider to keep the characteristic of discharge, by producing stable address discharge in addressing period, it is useful should being set to keeping in the discharge in the distribution of discharge cell mesospore electric charge.But, because in the conventional method, the width that all scanning impulses are set equates in all sons and does not consider weighting, in other words, gray-scale value, so after address discharge in initial of being distributed in of discharge cell mesospore electric charge, in other words, have in the son of low relatively gray-scale value not enough, thereby have the address discharge unsettled high probability that becomes, have the ensuing problem of keeping discharge instability or not producing thus.
In the Plasmia indicating panel that drives with as shown in Figure 3 drive waveforms, produce flicker.
Usually when producing during less than the field frequency (frame rate) of vision signal, the time span of fluorophor glimmers.For example, if field frequency is 60Hz, every 16.67m/sec shows a two field picture, but because the reaction rate of fluorophor is faster than this speed, produces flicker, the flash of light of frequency.
In line-by-line inversion (PAL) pattern, because field frequency is 50Hz, problem frequently takes place.
In the PAL pattern, because in a frame, realize a son layout, so reduced flicker with a plurality of steps (step).
In the layout of PAL pattern neutron field as shown in Figure 5.
Fig. 5 has illustrated to be used for using existing PAL method to create a son view of arranging of image at Plasmia indicating panel.
With reference to figure 5, use existing PAL pattern, the son field with different weights in a frame is divided into plural number, and is special, two groups.
For example, as shown in Figure 5, weighting 1, in other words, the sub-field of gray level 1, the son field of weighting 8, the son field of weighting 16, sub of weighting 32 and the sub-field of weighting 64 are included in the first sub-field group.
In addition, the sub-field of weighting 2, the sub-field of weighting 4, the son field of two weightings 8, the sub-field of weighting 16, sub of weighting 32 and sub of weighting 64 are included in the second sub-field group.
In the weighted sum of a frame neutron field of as above arranging, just, gray-scale value and be 1+2+4+8+ (8+8)+(16+16)+(32+32)+(64+64)=255.As a result, can 256 gray levels of concrete manifestation.
Drive in the existing PAL pattern of Plasmia indicating panel being used for a plurality of steps that Jiang Zichang is arranged as a frame, flicker is reduced, but exists the sub-number of fields order with low relatively weighting to increase, just, and the problem that the low gray-scale value in the frame increases.
The layout of son field is in the normal mode of 1 step in the frame therein, as shown in Figure 2, the layout of son field is in the PAL pattern of two steps in the frame therein, has low relatively weighting as the fruit field, just, low gray-scale value is divided into first, second, third, fourth son with gray-scale value of 1,2,4,8, son with low relatively weighted value is first and second sons in first son group and first, second, third, fourth son in second son group.
Therefore, in existing PAL pattern, because compare the layout of its neutron field is the normal mode of 1 step in the frame, number with son field of low relatively weighting (is exactly, low gray-scale value) increase, in initial son field, just, have in the son of low gray-scale value and have the address discharge unsettled high probability that becomes, this is because not enough in discharge cell mesospore CHARGE DISTRIBUTION address discharge after, occurs ensuing keep discharge become unstable or can not the degree of depth generation keep the problem of discharge.
Summary of the invention
Therefore, the objective of the invention is to solve at least prior art problems and shortcoming.
The purpose of this invention is to provide a kind of plasma display panel device, its by reducing flicker generation and adjust the scanning impulse width can stabilizing address discharge and keep discharge.
For realizing these and other advantage and,, provide a kind of plasma display panel device that it comprises as describing particularly and widely according to purpose of the present invention: Plasmia indicating panel, it has scan electrode; It is wideer than the width of the scanning impulse of other son in frame that scanning impulse controller, its addressing period that is used for being controlled at the pre-stator field of a son group are added to the width of scanning impulse of scan electrode.
According to the present invention, can reduce the generation of in the PAL driving method, glimmering.
According to the present invention, can be by adjusting scanning impulse width stabilizing address discharge and keeping discharge.
Description of drawings
To describe the present invention in detail with reference to the accompanying drawing of the similar element of wherein similar numeral.
Fig. 1 has illustrated the structure of existing Plasmia indicating panel;
Fig. 2 is the view of method that the establishment image gray levels of existing Plasmia indicating panel has been described;
Fig. 3 is the view that has illustrated according to the example of the drive waveforms of the driving method of existing Plasmia indicating panel;
Fig. 4 is the view that the width of the scanning impulse that applies in addressing period in the method that drives existing Plasmia indicating panel has been described;
Fig. 5 has illustrated a son view of arranging that uses existing PAL method to create image in Plasmia indicating panel;
Fig. 6 is the view that has illustrated according to plasma display panel device of the present invention;
Fig. 7 a and 7b are the views that the example that wherein a frame is divided into a plurality of sons group has been described;
Fig. 8 is the view that has illustrated according to the drive waveforms of first embodiment of the method that drives Plasmia indicating panel of the present invention;
Fig. 9 has illustrated the view that wherein a frame is divided into the examples that a plurality of sons field is organized and organize from a plurality of sons field group selection field;
Figure 10 is the view that has illustrated according to the width of the scanning impulse of first embodiment of the method that drives Plasmia indicating panel of the present invention;
Figure 11 a is the view of relation that the width of the scanning impulse between the son of width of the scanning impulse that is added to scan electrode in the addressing period that is adjusted at more than or equal to first marginal time has been described to 11b;
Figure 12 a is to have illustrated that a frame wherein is divided into the view of another examples of a plurality of sons group to 12b;
Figure 13 has illustrated according to second of the method that drives Plasmia indicating panel of the present invention
The drive waveforms of embodiment;
Figure 14 has illustrated the view that wherein a frame is divided into the examples that a plurality of sons field is organized and organize from a plurality of sons field group selection field;
Figure 15 is the view that has illustrated according to the width of the scanning impulse of second embodiment of the method that drives Plasmia indicating panel of the present invention;
Figure 16 a is the view of another relation that the width of the scanning impulse between the son of width of the scanning impulse that is added to scan electrode in the addressing period that is adjusted at more than or equal to first marginal time has been described to 16b;
Figure 17 a is the view that the 3rd embodiment of the method that drives Plasmia indicating panel of the present invention has been described to 17b;
Figure 18 a is the view that the 4th embodiment of the method that drives Plasmia indicating panel of the present invention has been described to 18b.
Embodiment
To in more detailed mode the preferred embodiments of the present invention be described with reference to the accompanying drawings.
According to aspects of the present invention, provide a kind of plasma display panel device, it comprises: Plasmia indicating panel, and it comprises scan electrode and keeps electrode; With the scanning impulse controller, it is wideer than the width of the scanning impulse of other son in the frame that its addressing period that is used for being controlled at the pre-stator field of a son group is added to the width of scanning impulse of scan electrode.
Idling cycle with predetermined length is between frame, and a son group of arranging frame in same number of frames continuously.
First idling cycle with predetermined length is included between the frame, and second idling cycle with predetermined length further is included between the son group in the same number of frames.
The equal in length of first idling cycle and second idling cycle.
A plurality of sub groups comprise a plurality of sons field, and are disposed in order a plurality of sons group with the increase of organizing the gray-scale value of neutron field at each.
A plurality of sub groups comprise a plurality of sons field, and are disposed in order a plurality of sons group with the minimizing of organizing the gray-scale value of neutron field at each.
This frame is divided into two sub and organizes, and two sub each that organize comprise a plurality of sons field, arranges two sub-field groups with each sub the size order of organizing the different grey-scale value of neutron field.
Any one of two son groups organized the gray-scale value of neutron field with each increase is disposed in order.
Any one of two son groups organized the gray-scale value of neutron field with each minimizing is disposed in order.
Any one of two son groups is disposed in order by the minimizing of gray-scale value with each group neutron field, and another of two son groups is disposed in order by the increases with the gray-scale value of each group neutron field.
The width that the scanning impulse controller is provided with scanning impulse be added to therein scan electrode scanning impulse width than in the wide son of the width of the scanning impulse of other son in addressing period more than or equal to first marginal time.
First marginal time was 2.0 μ s.
The width of scanning impulse that is added to scan electrode in the addressing period in the one or more son is more than or equal to first marginal time.
The width of scanning impulse that is added to scan electrode in the addressing period in the one or more son of each son group is more than or equal to first marginal time.
With the son of the ascending of the gray level son from minimum gray level to predetermined number, the width of scanning impulse that is added to scan electrode in addressing period is more than or equal to first marginal time.
The width of scanning impulse that is added to scan electrode in the anyon field of three low gray levels is wideer than the width of the scanning impulse that is added to scan electrode in other son.
This child field is a plural number, wherein the width of scanning impulse is more than or equal to first marginal time, and the scanning impulse controller is arranged on the width that is added to the scanning impulse of scan electrode in the addressing period of a son of a plurality of sons and is different from the width that is added to the scanning impulse of scan electrode in addressing period of other son of a plurality of sons.
The son field is a plural number, wherein the width of scanning impulse is more than or equal to first marginal time, and the width that the scanning impulse controller is arranged on the scanning impulse that is added to scan electrode in the addressing period is different from the width that is added to the scanning impulse of scan electrode in each addressing period of sub of a plurality of sons field.
The scanning impulse controller is increased in the width of the scanning impulse that is added to scan electrode in the addressing period when gray level reduces in the anyon field of a plurality of sons field.
Wherein the scanning impulse width is more than or equal to sub the pulse of using smaller or equal to critical number of keeping of first marginal time.
Critical number is always kept 50% of umber of pulse smaller or equal to being used in the frame.
Critical number is always kept 30% of umber of pulse smaller or equal to being used in the frame.
The scanning impulse controller is in the width of handling the scanning impulse that wherein is added to scan electrode in addressing period other son field more than or equal to the son field of first marginal time, and the width that is arranged on the scanning impulse that is added to scan electrode in the addressing period is smaller or equal to second marginal time.
Second marginal time was 1/2 of first marginal time.
Second marginal time was 1.5 μ s.
Hereinafter, will be described in detail with reference to the attached drawings exemplary embodiment of the present invention.
Fig. 6 is the structure that has illustrated according to plasma display panel device of the present invention.
As shown in Figure 6, plasma display panel device according to the present invention comprises scan electrode (Y1 is to Yn) and keeps electrode (Z), and with scan electrode (Y1 is to Yn) with keep a plurality of addressing electrodes (X1 is to Xm) that electrode (Z) intersects, it comprises by wherein at reset cycle, addressing period with keep in the cycle Plasmia indicating panel 100 that at least one height field combination expression that driving pulse is added to addressing electrode (X1 is to Xm), scan electrode (Y1 is to Yn) and keeps electrode (Z) comprises the image of frame; Data-driven 122, it provides data to the addressing electrode (X1 is to Xm) that forms in Plasmia indicating panel 100; Scanner driver 123, it is used for driven sweep electrode (Y1 is to Yn); Keep driver 124, it drives keeps electrode (Z) as public electrode; Scanning impulse controller 121, it is control scanner driver 123 when driving Plasmia indicating panel 100; And driving voltage generator 125, it provides each driver 122,123 and 124 required driving voltage.
Plasma display panel device according to the present invention is by wherein at reset cycle, addressing period with keep in the cycle image that at least one height field combination performance that driving pulse is added to addressing electrode, scan electrode and keeps electrode comprises frame, and, adjust the width of the width of the scanning impulse that is added to scan electrode (Y1 is to Yn) greater than another scanning impulse of sub in the addressing period of at least one height field at least one height field group in a plurality of sons group by a frame being divided into a plurality of sons field group and in a plurality of sons group, controlling each driver 122,123 and 124.Will be discussed in more detail below the reason of adjusting the scanning impulse width.
In Plasmia indicating panel 100, be connected to each other front panel (not shown) and rear panel (not shown), and separate fixed intervals.Form in pairs a lot of electrodes, for example, scan electrode (Y1 is to Yn) and keep electrode (Z), and formation addressing electrode (X1 is to Xm) is with cross scan electrode (Y1 is to Yn) with keep electrode (Z).
In data driver 122, after carrying out reverse gamma-corrected and error diffusion, mapped data is provided to each son field by a son mapping circuit by reverse gamma-corrected circuit that does not illustrate and error diffusion circuit.After data driver 122 was in response to sampling and latch data from the data time sequence control signal (CTRX) of time schedule controller (not shown), it provided data to addressing electrode (X1 is to Xm).
Under the control of scanning impulse controller 121, scanner driver 123 provides rising edge waveform and negative edge waveform to scan electrode (Y1 is to Yn) during the reset cycle.Under the control of scanning impulse controller 121, scanner driver 123 order during addressing period provides scanning voltage, and (scanning impulse Vy) (Sp) is to scan electrode (Y1 is to Yn), and provides during addressing period and keep pulse (sus) and arrive scan electrode (Y1 is to Yn).
Under the control of time schedule controller (not shown), keep driver 124 at addressing period with wherein produce to provide during cycle of negative edge waveform and keep being biased into of voltage (Vs) and keep electrode (Z).Keep driver 124 and also pass through and scanner driver 123 alternation during addressing period, provide and keep pulse (sus) to keeping electrode (Z).
When by it being divided into a plurality of son when driving Plasmia indicating panel 100, in each son with luminance weighted representing gradation level.Low gray level expressing is the gray-scale value in having the son field of relative low-light level weighting at this moment.
Data controlling signal (CTRX) comprises the switch controlling signal of the ON/OFF time that is used to control the sampling clock that is used for sampled data, and latch control signal is used for the switch controlling signal of the switching time of control energy recovery circuit and driving switch element.Switch controlling signal is used for being controlled at the ON/OFF time of the driving switch element and the energy recovering circuit of scanner driver 123.Keep the switch controlling signal that control signal (CTRZ) comprises the ON/OFF time that is used for being controlled at the driving switch element of keeping driver and energy recovering circuit.
Driving voltage generator 125 produces to be set up voltage (Vsetup), scanning common electric voltage (Vscan-com), scanning voltage and (Vy), keeps voltage (Vs) and data voltage (Vd) etc.These driving voltages will change according to the composition of discharge gas or the structure of discharge cell.
The driving method of being carried out by plasma display panel device of the present invention comprises a frame is divided into a plurality of sons group, and allows to be added to width other son field wide in addressing period of any one son of the son group of this division recently of the scanning impulse of scan electrode (Y1 is to Yn).To be described in a son example of arranging that has a plurality of steps in the frame with reference to figure 7a and 7b.
Fig. 7 a and 7b are the views that the example that wherein a frame is divided into a plurality of sons group has been described.
Shown in Fig. 7 a and 7b, a frame is divided into two sons group, for example, and two son groups, just, first son group and second son group are shown in Fig. 7 a.Arrange the son field with two steps.
With reference to figure 7a, the idling cycle with predetermined length is included between the first son field and the second son field.
Increase according to weighting (gray-scale value just) in the first son field group and second son group is disposed in order sub.Son field with lowest weighted (just, the minimum gray level value) of sub is positioned at initial position of each son field group, and places the son field with the weighting that raises gradually afterwards.
For example, in first sub is organized, comprise sub (gray-scale value 1) of weighting 1, sub (the sub-field of weighting 16), the son field (the son field of weighting 64) of weighting 32 of weighting 8 in proper order to the highest weighting/gray level with minimum.In the second sub-field group, comprise the sub-field of sub (gray-scale value 2), the Zi Chang of weighting 4 of weighting 2, two weightings 8, the son field of weighting 16, the son field of weighting 32 and sub of weighting 64 in proper order to the highest weighting/gray level with minimum.
As above the weighted sum of a frame neutron field of Bu Zhiing is 1+2+4+8+ (8+8)+(16+16)+(32+32)+(64+64)=255.Be disposed in order 256 gray levels in the frame of weighting 1,2,4,8,16,32,64,128 by concrete manifestation with this therein as shown in Figure 2.Comprise can 121 gray levels of concrete manifestation first son group and second son group that can 135 gray levels of concrete manifestation, and therefore obtain the effect of two frames of concrete manifestation gray level 121 and 135.Therefore, reduced flicker.About the notion of idling cycle in the notion of the weighting of son and this frame shown in Fig. 7 b.
Shown in Fig. 7 b, in a frame, comprise first son group and second son group, and between this a little group, comprise idling cycle.The weighting of noticing the son field that comprises in each son group illustrates with triangle.Triangle represents that according to weighting in each son field, just, the increase of gray-scale value is disposed in order the son field.
Drive in the pattern of a frame by being divided into a plurality of sons field group therein, in having a son field of low weighting/low gray-scale value, adjust the width of scanning impulse.The scanning impulse of being adjusted by driving method as shown in Figure 8.
Fig. 8 is the view that has illustrated according to the drive waveforms of first embodiment of the method that drives Plasmia indicating panel of the present invention.
As shown in Figure 8, in the drive waveforms of the method for driving Plasmia indicating panel according to the present invention, wherein this plasma display panel comprises scan electrode (Y1 is to Yn) and keeps electrode (Z) and with scan electrode with keep a plurality of addressing electrodes (X1 is to Xm) of electrode crossing, and pass through wherein in the reset cycle, addressing period is added to addressing electrode with keeping in the cycle with driving pulse, scan electrode makes up the image that expression is made of frame with at least one height field of keeping electrode, if frame is divided into an a plurality of son group, the width of scanning impulse that is added to scan electrode (Y1 is to Yn) wide than other son field in the addressing period of at least one height field at least one height field group in a plurality of sons group.
For example, if shown in 8, if having the width that is added to the scanning impulse of scan electrode in the addressing period in first son of low weighting/low gray level in first son group or second son group is W1, and in ensuing son field, in other words, the width of the scanning impulse from the second son field to n field is W2, and then W1 is wideer than W2.
As mentioned above, the wide son group of sub than other of width that wherein is added to the scanning impulse of scan electrode in the son with low weighting/low gray-scale value in the addressing period can be all sons group in the frame, a plurality of sons of perhaps selecting in a frame or any one sub-field.For example, as shown in Figure 8, when a frame being divided into first son group and second son when group, the width that has the scanning impulse that is added to scan electrode in the addressing period of low weighting/low gray-scale value in first son group is wideer than other sub-field.Even in second son group, the width of scanning impulse that is added to scan electrode in the addressing period in the son with low weighting/low gray-scale value is greater than other son, perhaps only among in first son group or second son group, the width of scanning impulse that in addressing period, is added to scan electrode wide than other sub-field with low weighting/low gray-scale value.
As mentioned above, the width of scanning impulse that is added to scan electrode (Y1 is to Yn) therein in addressing period is than in other sub wide son, the width of scanning impulse, and just, W1 has the length more than or equal to first marginal time.
Except the width of the scanning impulse that wherein in addressing period, is added to scan electrode (Y1 is to Yn) more than or equal to the son of first marginal time, the width W 2 that is added to the scanning impulse of scan electrode (Y1 is to Yn) in addressing period has the length smaller or equal to second marginal time.
Preferably, second marginal time be 1.5 μ s and therefore W2 smaller or equal to 1.5 μ s.As shown in Figure 8, in addressing period, be added to the width of scanning impulse of scan electrode smaller or equal to 1.5 μ s except other son of first son in first son group or second son group.
Be added to reason that the width that is added to the scanning impulse of scan electrode in width addressing period greater than other son of the son of first marginal time of scanning impulse of scan electrode (Y1 is to Yn) is set to 1.5 μ s and be when concrete manifestation XGA (Extended Graphics Array) (XGA) panel during with establishment high resolving power (HD) grade other picture quality in except the addressing period that a frame is being divided into first son group and second son group, XGA (Extended Graphics Array) (XGA) panel has than Video Graphics Array (VGA) a lot of discharge cell greatly.In other words, the width of scanning impulse is set to less than and equals 1.5 μ s, with all discharge cells of addressing a lot of relatively discharge cells in limited addressing period.If the scanning impulse width surpasses 1.5 μ s, the length that prolongs whole addressing period, and therefore the length of addressing period reduces.Therefore, the decreased number of keeping pulse that applies in addressing period reduces the absolute brightness of Plasmia indicating panel thus.Therefore, the width of the scanning impulse that applies in except the width of the scanning impulse that wherein is added to scan electrode (Y1 is to Yn) in addressing period addressing period more than or equal to son other son outside the venue of first marginal time is adjusted to smaller or equal to 1.5 μ s.
When the width W 1 of the scanning impulse that in addressing period, is added to scan electrode in as shown in Figure 8 first son during more than or equal to first marginal time, preferably, first marginal time was two double-lengths of second marginal time.In other words, second marginal time be first marginal time time 1/2.Preferably, second marginal time is more than or equal to 1.5 μ s.
Because wherein being added to the width of the scanning impulse of scan electrode organizes in each son field, just, sub more than or equal to first marginal time in the addressing period of the first son field group and second son group has relative low weighting, and preferably, gray level is hanged down in this child field concrete manifestation.
(more preferred in any son field, son field with low weighting/low gray-scale value) width that is added to the scanning impulse of scan electrode in the addressing period is adjusted in each son group, just, the reason more than or equal to first marginal time is the stabilizing address cycle in having the son field of low weighting/low gray-scale value in first son group and the second sub-field group.In other words, as mentioned above, because in the son field of the low gray level of concrete manifestation owing to low relatively weighting, other son field of the unsettled likelihood ratio of address discharge, just, because the height of the son of high relatively weighting and concrete manifestation high grade grey level, has low weighting by being arranged on/be added to the width of scanning impulse of scan electrode in the addressing period of the son of low gray-scale value more than or equal to the first marginal time stabilizing address discharge.Therefore, improved addressing shake and be stabilized in the discharge of keeping in the ensuing addressing period.
The width of scanning impulse be set to because be more than or equal to the reason of first marginal time in the son of the low gray level of low relatively weighting and concrete manifestation because the number of keeping pulse in the son of low relatively weighting and the low gray level of concrete manifestation less than other son of concrete manifestation high grade grey level.Therefore, the quantitative change of the wall electric charge of piling up at discharge cell is little, and therefore keep the unsettled probability that becomes that discharges because exist, width by scanning impulse is set is than other sub wide, and therefore the wall CHARGE DISTRIBUTION that is arranged in the discharge cell is more useful in keeping discharge, is created in the stabilizing address discharge in the addressing period.
It is one situation more than or equal to the number of the son of first marginal time that Fig. 8 shows the width that wherein is adjusted at the scanning impulse that is added to scan electrode in the addressing period, but the width that is added to the scanning impulse of scan electrode in a son group in the addressing period of a plurality of sons can be adjusted to more than or equal to first marginal time.Driving method as shown in Figure 9.
Fig. 9 has illustrated that wherein a frame is divided into a plurality of sons group and the view of the example of chooser field group wherein.
As shown in Figure 9, when being divided into two son fields, a frame organizes, just, and when the first sub-field group as shown in Figure 8 and the second sub-field are organized, select an a plurality of son group, and the width of scanning impulse that in the addressing period of selected son, is added to scan electrode wide than other sub-field.The width of scanning impulse is set to larger than and equaled for first marginal time.As a result, wherein the width of scanning impulse be adjusted to more than or equal to first marginal time the son each son the group in be the plural number.
To be described in the width of scanning impulse in this driving method with reference to Figure 10.
Figure 10 is the view that has illustrated according to the width of the scanning impulse of first embodiment of the method that drives Plasmia indicating panel of the present invention.
With reference to Figure 10, as shown in Figure 9, it is wideer than the width of the scanning impulse that is added to scan electrode in the addressing period of the regional neutron field of D of the B zone of first son group and second son group to be added to the width of scanning impulse of scan electrode in the addressing period of the C zone neutron field of the a-quadrant of first son group and second son group.For example, shown in Figure 10 (a), if being added to the width of the scanning impulse of scan electrode in the addressing period of the C zone of first son a-quadrant of organizing and second sub group neutron field is W1, and the width that is added to the scanning impulse of scan electrode in the addressing period of the D zone neutron field of and second son group regional at the B of first son group is W2, and then W1 is wideer than W2.As mentioned above, wherein in addressing period, be added to the width field wideer of the scanning impulse of scan electrode than the width of the scanning impulse of other son field that in sub-field is organized, has low weighting/low gray-scale value.
The width that wherein is added to the scanning impulse of scan electrode in addressing period is included in each son group than the wide sub-field energy of width of other sub scanning impulse with similar number, just, and during first son group and second son are organized.For example, it is wideer than the width of the scanning impulse of other sub-field to be added to the width of scanning impulse of scan electrode in each of three sons in first son group and second son group in addressing period.
The width that wherein is added to the scanning impulse of scan electrode in addressing period can only be included among in first son group or second son group one than the wide son of the width of other sub scanning impulse, and can not be included in other son group.
The width field wideer than the width of other scanning impulse of sub that wherein is added to the scanning impulse of scan electrode in addressing period can be included in a son group with different numbers, just, and in first son group and second son group.For example, first the son the group in two the son the neutralization second the son the group in four the son addressing period in be added to scan electrode scanning impulse width can than other the son wide.
Preferably, as mentioned above, the width of adjusting scanning impulse in addressing period, be added to therein scan electrode scanning impulse width than in other wide sub-field of sub more than or equal to first marginal time.Preferably, to be adjusted to more than or equal to the son of first marginal time be with the size order of weighting/gray-scale value from son with minimum gray level value to predetermined number to the width that wherein is added to the scanning impulse of scan electrode in addressing period.
The width of the scanning impulse that is added to scan electrode in being adjusted at addressing period more than or equal to the relation of the width of the scanning impulse between the son of first marginal time shown in Figure 11 a and 11b.
Figure 11 a is that the width that is adjusted at the scanning impulse that is added to scan electrode in the addressing period view more than or equal to the width relation of the scanning impulse between the son of first marginal time has been described to 11b.
With reference to figure 11a, as in second sub C zone as shown in Figure 9, when the width of the scanning impulse that is added to scan electrode in four son fields in addressing period is wideer than the width of other scanning impulse of sub, just, when making the width of the scanning impulse that is added to scan electrode in first, second, third, fourth son in addressing period wideer than the width of other sub scanning impulse, the width that is adjusted at the scanning impulse that is added to scan electrode in the first, second, third, fourth sub-field in addressing period is more than or equal to first marginal time.In addition, the width of adjusting scanning impulse therein is wideer than the width of the scanning impulse of other sub-field more than or equal to the width of the scanning impulse of any one son in the son of first marginal time.
Preferably, have the son field that wherein in a son field group, has the scanning impulse of wideer pulse width in the sub-field of width more than or equal to first marginal time of scanning impulse and in a son field is organized, have lowest weighted, just, the minimum gray level value.
For example, shown in Figure 11 a, if having first sub pulse width of low weighting/low gray-scale value therein in the second son field group in the first, second, third, fourth son field of the width of scanning impulse more than or equal to first marginal time is W1, then residue is sub, in other words, second, third, the scanning impulse width of the 4th son is W2, and W1 is wideer than W2.
With reference to figure 11b, scanning impulse has more than or equal to the width that is added to the scanning impulse of scan electrode in the son of the width of first marginal time in addressing period and differs from one another in a son group therein.
For example, shown in Figure 11 b, first the son, second the son, the 3rd the son and the 4th the son in scanning impulse width therein second the son the group in scanning impulse width more than or equal to first marginal time first, second, third, fourth the son in differ from one another.For example, if the width of scanning impulse is W1 in the first son field, the width of scanning impulse is W2 in the second son field, the width of scanning impulse is W3 in the 3rd son field, and the width of scanning impulse is W4 in the 4th son field, then W1, W2, W3 and W4 differ from one another, and determine its value according to the weighting/gray-scale value of corresponding son field.In other words, in Figure 11 b, with the size order of weighting/gray-scale value in first, second, third, fourth son field, the width W 1 of scanning impulse is the wideest in having the first son field of lowest weighted, next the wideest be W2, that next the wideest is W3, and next the wideest be W4.The relation of obtaining is W1＞W2＞W3＞W4.
The width that can determine wherein to adjust scanning impulse with the viewpoint of the number of keeping pulse in the cycle of keeping is more than or equal to the son of first marginal time.In other words, having the son field of seldom keeping pulse is sub that weighting/low gray-scale value is hanged down in concrete manifestation, and has the son field that the sub-field of much keeping pulse is the high weighting/high grade grey level of concrete manifestation.Because the weighting/gray level of son field depends on the number of keeping pulse, by the chain-reacting amount of keeping pulse selection is set and wherein is adjusted at the width of the scanning impulse that is added to scan electrode in the addressing period more than or equal to the benchmark of first marginal time, and the width of adjusting scanning impulse in having the son of keeping pulse that lacks than the chain-reacting amount of keeping pulse that is provided with more than or equal to first marginal time.
Preferably, chain-reacting amount be used in the frame keep the pulse sum 50% or still less.More preferred, chain-reacting amount be used in the frame keep the pulse sum 30% or still less.
For example, when 1000 when keeping pulse and being used in the frame altogether, select to use the pulse of keeping smaller or equal to 30%, just, keep pulse or less than the son of always keeping pulse that is used in the frame for 300, and the width that is adjusted at the scanning impulse that is added to scan electrode in the selected son in addressing period is more than or equal to first marginal time.
In the foregoing description, shown in Fig. 7 a and 7b, the increase with weighting in the group of the son field of a frame is disposed in order the son field, but can be disposed in order sub with the minimizing of weighting, shown in Figure 12 a and 12b.
Figure 12 a and 12b are the views that another example that wherein a frame is divided into a plurality of sons group has been described.
Shown in Figure 12 a and 12b, a frame is divided into a plurality of sons field group and is disposed in order sub with weighting, the minimizing of gray-scale value just in each son group.
For example, shown in Figure 12 a, be disposed in order the son field with the minimizing of weighting (gray-scale value just) of (just, in first son group and second son group) in each group.The high grade grey level of the concrete manifestation son field of high weighting is positioned at each son group () initial position just, first son group or second son group, and place the son with the weighting/low gray level that reduces gradually afterwards.
For example, in the first son field group, comprise the sub-field of weighting 64, the son field of weighting 32, the son field of weighting 16 in proper order, sub and sub of weighting 1 of weighting 8 with this.
In the second sub-field group, comprise the sub-field of weighting 64, the sub-field of weighting 32, the son field of weighting 16 in proper order, the sub-field of two weightings 8, sub and the sub-field of weighting 2 of weighting 4 with this.The notion of the notion of idling cycle and a son weighting is shown in Figure 12 b in one frame.
Shown in figure 12b, (just, in first son group and second son group) is included in the frame in two son groups, and idling cycle is included between this a little group.The most important thing is that sub the weighting that is included in each son group is shown as triangle.The son minimizing with weighting (gray-scale value just) that this triangle table is shown in each son field is disposed in order sub.
Between first son group and second son group, further comprise idling cycle with predetermined length.
Shown in Figure 12 a, the weighted sum of the son field in the frame is 1+2+4+8+ (8+8)+(16+16)+(32+32)+(64+64)=255.
Arrange son with the reverse order of gray-scale value, and therefore total gray-scale value (total gray level just) can concrete manifestation and as shown in Figure 2 256 identical gray levels of frame with weighting 1,2,4,8,16,32,64,128.In addition, can obtain concrete manifestation comprise can 121 gray levels of concrete manifestation second son group and the effect of two frames of the gray level 121 of first son group that can 135 gray levels of concrete manifestation and 135.Therefore, reduced flicker.
Drive in the pattern of a frame by being divided into a plurality of sons field group therein, in having any one son field of low weighting/low gray-scale value, adjust the width of scanning impulse.The scanning impulse of adjusting according to this driving method as shown in figure 13.
Figure 13 is the view that has illustrated according to the drive waveforms of second embodiment of the method that drives Plasmia indicating panel of the present invention.
As shown in figure 13, in second embodiment of the method for driving Plasmia indicating panel of the present invention, son in the end, just, the width of scanning impulse that is added to scan electrode in the addressing period of n is wideer than the width of the scanning impulse of other sub-field.
For example, as shown in figure 13, if in first son group or the second sub-field group, have the son field of low weighting/low gray-scale value, just, the width that is added to the scanning impulse of scan electrode in the n field in addressing period is W1, and in other son field, just, the width of scanning impulse is W2 from the first son field to n-1 field, and then W1 is wideer than W2.
As mentioned above, in addressing period, be added to the width field wideer of the scanning impulse of scan electrode (Y1 is to Yn) therein than the width of other scanning impulse of sub, just, in the n field as shown in figure 13, the width of scanning impulse, just, W1 has the width more than or equal to first marginal time.
Except the width of the scanning impulse that wherein in addressing period, is added to scan electrode (Y1 is to Yn) more than or equal in the remaining son of the son of first marginal time, in other words, from first son to n-1 field, the width that is added to the scanning impulse of scan electrode (Y1 is to Yn) in addressing period (W2) has a width smaller or equal to second marginal time in other words.
Preferably, second marginal time was 1.5 μ s with identical in first embodiment of the method for driving Plasmia indicating panel of the present invention, and therefore W2 smaller or equal to 1.5 μ s.In Figure 13, in the sub-field that the first sub-field is organized or second sub has lowest weighted in organizing, be exactly, in the last son field of each son group, except, for example, in addressing period, be added to the width of scanning impulse of scan electrode in residue of n of second son group smaller or equal to 1.5 μ s.
Preferably, the width that wherein is added to the scanning impulse of scan electrode in each son group (just, first son group and second son group) in addressing period is the son field of the low weighting of concrete manifestation/low gray-scale value more than or equal to the son of first marginal time.The description of Figure 13 is identical with first embodiment of the method for the driving Plasmia indicating panel of the present invention of Fig. 8 basically, and therefore the descriptions thereof are omitted.
Figure 13 has only illustrated that the width that wherein is adjusted at the scanning impulse that is added to scan electrode in the addressing period is one situation more than or equal to the number of the son of first marginal time, but 1 the independent situation of explaining, the width that can be adjusted at the scanning impulse that is added to scan electrode in the addressing period of a plurality of sons in the son group is more than or equal to first marginal time.This driving method as shown in figure 14.
Figure 14 is the view that another example that wherein a frame is divided into a plurality of sons group and chooser field group has been described.
As shown in figure 14, therein a frame is divided in another example of a plurality of sons group and chooser field group, be different from situation as shown in Figure 9, because the son field with low weighting/low gray-scale value is positioned at the rear end of a son group, make a son Hou Zichang that organizes (just, the son in the D zone of the B zone of first son group and second son group) scanning impulse width is wideer than the width of the scanning impulse of other sub (the sub-field in the a-quadrant of first son group and second son C zone of organizing just).Sub the scanning impulse width in the D zone of first son B that an organizes zone and second son group is set to larger than and equaled for first marginal time.
Be described in the width of scanning impulse in this driving method below with reference to Figure 15.
Figure 15 is the view that has illustrated according to the width of the scanning impulse of second embodiment of the method for driving Plasmia indicating panel of the present invention.
With reference to Figure 15, as shown in figure 14, the width ratio of scanning impulse that is added to scan electrode in the addressing period in the D zone of the B zone of first son group and second son group is in other zone, just, it is wide to be added to the width of scanning impulse of scan electrode in the addressing period of the son in the C zone of the a-quadrant of first son group and second son group.For example, shown in Figure 10 (a), if being added to the width of the scanning impulse of scan electrode in the addressing period in the D zone of and second son group regional at the B of first son group is W1, and the width that is added to the scanning impulse of scan electrode in the addressing period of the son in the C zone of the a-quadrant of first son group and second son group is W2, and then W1 is wideer than W2.As mentioned above, the width that wherein is added to the scanning impulse of scan electrode in addressing period than the wide son of width of other son in the son group is the son with low weighting/low gray-scale value.
As above-mentioned number, the width of scanning impulse that wherein is added to scan electrode in addressing period is than being plural number in frame group at the wide son of width of other son, and the relation of the width of the scanning impulse between the width of the scanning impulse that is added to scan electrode in the being adjusted at addressing period field wide than first marginal time as Figure 16 a to shown in the 16b.
Figure 16 a is that the view of the width of the scanning impulse that is added to scan electrode in being adjusted at addressing period more than or equal to another relation of the scanning impulse width between the son field of first marginal time has been described to 16b.
With reference to figure 16a, with the same in first sub the B zone of Figure 14, when the width of the scanning impulse that is applied to scan electrode in the addressing period in four son fields is wideer than the width of other scanning impulse of sub, just, when the width of the scanning impulse that is added to scan electrode in the addressing period of the 3rd, the 4th, the 5th son in first son group during than other sub-field wide, the width that is added to the scanning impulse of scan electrode in the addressing period of this a little (the 3rd, the 4th, the 5th son field just) was adjusted to more than or equal to first marginal time.In addition, the width of adjusting scanning impulse therein is wideer than the width of the scanning impulse of residue more than or equal to the width of the scanning impulse of any one son in the son of first marginal time.
Preferably, therein the scanning impulse in son group to have more than or equal to the son that has significantly wideer pulse width in the son of the width of first marginal time be the son that has low weighting/low gray-scale value in a son group.
For example, as in Figure 16 a, if having the 7th sub pulse width of low weighting/low gray-scale value therein in the second son field group in the 4th, the 5th, the 6th, the 7th son field of the width of scanning impulse more than or equal to first marginal time is W1, and residue field, just, four, the pulse width of the 5th and the 6th son field is W2, and then W1 is wideer than W2.
With reference to figure 16b, scanning impulse has the width that is added to the scanning impulse of scan electrode in the addressing period more than or equal to the son of the width of first marginal time and differs from one another in a son group therein.
For example, as in Figure 16 b, therein first the son the group in the scanning impulse width more than or equal to first marginal time the 4th, the 5th, the 6th and the 7th the son in, the 4th the son in the scanning impulse width, the 5th the son in the scanning impulse width, the 6th the son in the scanning impulse width, the 7th the son in scanning impulse width difference.For example, if the scanning impulse width is W1 in the 7th son field, scanning impulse width in the 6th son field is W2, scanning impulse width in the 5th son field is W3, and the scanning impulse width in the 4th son field is W4, then W1, W2, W3 and W4 differ from one another, and determine its size according to the weighting/gray-scale value of corresponding son field.In Figure 16 b, with the size order of weighting/gray-scale value of the 4th, the 5th, the 6th and the 7th sub, the width W 1 of scanning impulse is the wideest in having the 7th son field of lowest weighted, and that next the wideest is W2, next the wideest be W3, and next the wideest be W4.Can obtain the relation of W1＞W2＞W3＞W4.
As mentioned above, a frame is divided into a plurality of sons group, and between a plurality of sons group of dividing, comprises an idling cycle, but can between a son group and frame, further comprise idling cycle with predetermined length.This driving method is shown in Figure 17 a and 17b.
Figure 17 a is the view that the 3rd embodiment of the method that drives plasma display panel device of the present invention has been described to 17b.
With reference to figure 17a and 17b, comprise first idling cycle at the front end of frame, and between first son group and second son group, comprise second idling cycle with predetermined length with predetermined length.
With reference to figure 17a, the son field of a frame is divided into a plurality of sons group, preferably, two son groups, just, first son group and second son group, and the increase of the weighting/gray-scale value in organizing with son is disposed in order.Son field with lowest weighted/minimum gray level value is arranged in the initial position of each son field group, and places the son field with the weighting that raises gradually afterwards.For example, in the first son field group, the sub-field of weighting 1/ gray-scale value 1, the son field of weighting 8, the son field of weighting 16, sub of weighting 32 and the sub-field of weighting 64 are included in the first sub-field group with this order.
In addition, with the sub-field of weighting 2 (just, gray-scale value 2), the sub-field of weighting 4, the son field of two weightings 8, the sub-field of weighting 16, sub of weighting 32 and the sub-field of weighting 64 are included in the second sub-field group in proper order with this.
As mentioned above, between a son group, comprise idling cycle and be included in first idling cycle between the frame with predetermined length with predetermined length.The length of first idling cycle and second idling cycle is similar and different.But preferably, the vision of consideration between a son group divided the easiness of effect and drive controlling, and the length of first idling cycle and second idling cycle should equate.
Because discern the visual effect increase that a frame is two frames at first idling cycle between the frame and second idling cycle between a son group.Therefore, flicker reduces and has improved picture quality.Basically with identical with first embodiment shown in the 7b as Fig. 7 a, and therefore the descriptions thereof are omitted according to the 3rd embodiment of the method for driving Plasmia indicating panel of the present invention.
Be different from the 3rd embodiment, be disposed in order son with the minimizing of weighting/gray-scale value in each son group according to the method for driving Plasmia indicating panel of the present invention.This driving method is shown in Figure 18 a and 18b.
Figure 18 a is the view of the 4th embodiment that the method for driving Plasmia indicating panel of the present invention has been described to 18b.
Shown in Figure 18 a and 18b, among the 4th embodiment of the method for driving Plasmia indicating panel of the present invention, in sub group, arrange the son field with the minimizing order of weighting/gray-scale value.
The fourth embodiment of the present invention is identical with second embodiment according to the driving method of Plasmia indicating panel of the present invention shown in Figure 12 a or 12b basically, and therefore the descriptions thereof are omitted.
Describe the present invention like this, clearly can make multiple modification.This modification should not be considered to break away from the spirit and scope of the present invention, and all changes that it will be apparent to those skilled in the art that all are intended to be included among the scope of following claim.
Claims (28)
1. plasma display panel device, it is to have the frame displayed image of a plurality of sons group, and this plasma display device comprises:
Plasmia indicating panel, it comprises scan electrode; With
It is wideer than the width of the scanning impulse of other son in the frame that scanning impulse controller, its addressing period that is used for being controlled at the pre-stator field of a son group are added to the width of scanning impulse of scan electrode.
2. plasma display panel device as claimed in claim 1, wherein, the space periodic with predetermined length is included between the frame, and arranges a son group of frame in same number of frames continuously.
3. plasma display panel device as claimed in claim 1, wherein, first idling cycle with predetermined length is included between the frame, and second idling cycle with predetermined length further is included between the son group in the same number of frames.
4. plasma display panel device as claimed in claim 3, wherein, the equal in length of this first idling cycle and second idling cycle.
5. as the described plasma display panel device of arbitrary claim among the claim 1-3, wherein, this a plurality of sons group comprises a plurality of sons, and the increase with the gray-scale value of son is disposed in order a plurality of sons group in each group.
6. as the described plasma display panel device of arbitrary claim among the claim 1-3, wherein, this a plurality of sons group comprises a plurality of sons, and the minimizing with the gray-scale value of son is disposed in order a plurality of sons group in each group.
7. as the described plasma display panel device of arbitrary claim among the claim 1-3, wherein, this frame is divided into two sub and organizes, and two sub each that organize comprise a plurality of sons field, arranges two sub-field groups with each sub the size order of organizing the different grey-scale value of neutron field.
8. plasma display panel device as claimed in claim 7, wherein, any one of these two a son group organized the gray-scale value of neutron field with each increase is disposed in order.
9. plasma display panel device as claimed in claim 7, wherein, any one of these two a son group organized the gray-scale value of neutron field with each minimizing is disposed in order.
10. plasma display panel device as claimed in claim 7, wherein, any one of these two a son group is disposed in order by the minimizing of gray-scale value with each group neutron field, and another of two son groups is disposed in order by the increases with the gray-scale value of each group neutron field.
11. plasma display panel device as claimed in claim 1, wherein, this scanning impulse controller width that scanning impulse is set be added to therein scan electrode scanning impulse width than in the wide son of the width of the scanning impulse of other son in addressing period more than or equal to first marginal time.
12. plasma display panel device as claimed in claim 11, wherein, this first marginal time is 2.0 μ s.
13. plasma display panel device as claimed in claim 11, wherein, the width that is somebody's turn to do the scanning impulse that be added to scan electrode in the addressing period in one or more sons field is more than or equal to first marginal time.
14. plasma display panel device as claimed in claim 11, wherein, the width of scanning impulse that should be added to scan electrode in the addressing period of the one or more son in each son group is more than or equal to first marginal time.
15. plasma display panel device as claimed in claim 11, wherein, with the son of the ascending of the gray level son from minimum gray level to predetermined number, the width of scanning impulse that is added to scan electrode in addressing period is more than or equal to first marginal time.
16. plasma display panel device as claimed in claim 15, wherein, the width that is somebody's turn to do the scanning impulse that be added to scan electrode in the anyon field of three low gray levels fields is wideer than the width of the scanning impulse that is added to scan electrode in other son field.
17. plasma display panel device as claimed in claim 11, wherein, this child field is a plural number, and wherein the width of scanning impulse is more than or equal to first marginal time,
The scanning impulse controller is arranged on the width that is added to the scanning impulse of scan electrode in the addressing period of a son of a plurality of son and is different from the width that is added to the scanning impulse of scan electrode in addressing period of other son of a plurality of sons.
18. plasma display panel device as claimed in claim 11, wherein, this child field is a plural number, and wherein the width of scanning impulse is more than or equal to first marginal time,
The width that the scanning impulse controller is arranged on the scanning impulse that is added to scan electrode in the addressing period is different from the width that is added to the scanning impulse of scan electrode in each addressing period of sub of a plurality of sons field.
19. plasma display panel device as claimed in claim 18, wherein, this scanning impulse controller is increased in the width of the scanning impulse that is added to scan electrode in the addressing period when gray level reduces in the anyon field of a plurality of sons field.
20. as the described plasma display panel device of any one claim of claim 11-19, wherein, the width of this scanning impulse is more than or equal to sub the pulse of using smaller or equal to chain-reacting amount of keeping of first marginal time.
21. plasma display panel device as claimed in claim 20, wherein, this chain-reacting amount is always kept 50% of umber of pulse smaller or equal to being used in the frame.
22. plasma display panel device as claimed in claim 21, wherein, this chain-reacting amount is always kept 30% of umber of pulse smaller or equal to being used in the frame.
23. plasma display panel device as claimed in claim 11, wherein, this scanning impulse controller except the width of the scanning impulse that wherein in addressing period, is added to scan electrode more than or equal in other son of the son of first marginal time, the width that is arranged on the scanning impulse that is added to scan electrode in the addressing period is smaller or equal to second marginal time.
24. plasma display panel device as claimed in claim 23, wherein, this second marginal time is 1/2 of first marginal time.
25. plasma display panel device as claimed in claim 23, wherein, this second marginal time is 1.5 μ s.
26. the driving arrangement of a Plasmia indicating panel, it is to have the frame display image of a plurality of sons group, and the driving arrangement of this plasma display panel comprises:
Scanner driver, it is used to apply scanning impulse to scan electrode; With
It is wideer than the width of the scanning impulse of other son in the frame that scanning impulse controller, its addressing period that is used for being controlled at the pre-stator field of a son group are applied to the width of scanning impulse of scan electrode.
27. the Plasmia indicating panel with frame display images with a plurality of son group, this plasma display panel comprises:
Scan electrode and keep electrode,
Wherein, the width of scanning impulse that in the addressing period of pre-stator field of a son group, is added to scan electrode than frame in the width of scanning impulse of other son wide.
28. a driving is with the method for the plasma display panel device of frame display images with a plurality of sons group, this method comprises:
The width that is arranged on the scanning impulse that is added to scan electrode in the addressing period of pre-stator field of a son group is wideer than the width of the scanning impulse of other son in the frame.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050029173A KR20070087703A (en) | 2005-04-07 | 2005-04-07 | Plasma display panel, apparatus, driving apparatus and method thereof |
| KR1020050029173 | 2005-04-07 | ||
| KR1020050029697 | 2005-04-08 |
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| Publication Number | Publication Date |
|---|---|
| CN1845226A true CN1845226A (en) | 2006-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005101340016A Pending CN1845226A (en) | 2005-04-07 | 2005-12-16 | Plasma display apparatus and driving method thereof |
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| Country | Link |
|---|---|
| KR (1) | KR20070087703A (en) |
| CN (1) | CN1845226A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545125A (en) * | 2017-09-21 | 2019-03-29 | 深圳市富满电子集团股份有限公司 | Using the pulse modulation control method and system of pulse width backoff algorithm |
| CN112017603A (en) * | 2020-09-02 | 2020-12-01 | Tcl华星光电技术有限公司 | Backlight module and driving method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090044780A (en) * | 2007-11-01 | 2009-05-07 | 엘지전자 주식회사 | Plasma display device thereof |
| KR102238175B1 (en) * | 2020-07-02 | 2021-04-12 | 삼성디스플레이 주식회사 | Liquid crystal display device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0982708B1 (en) * | 1998-08-19 | 2011-05-11 | Thomson Licensing | Method and apparatus for processing video pictures, in particular for large area flicker effect reduction |
| JP3578323B2 (en) * | 1998-12-25 | 2004-10-20 | パイオニア株式会社 | Driving method of plasma display panel |
| JP3560143B2 (en) * | 2000-02-28 | 2004-09-02 | 日本電気株式会社 | Driving method and driving circuit for plasma display panel |
| KR100599798B1 (en) * | 2004-07-29 | 2006-07-12 | 삼성에스디아이 주식회사 | Plasma display device and driving method thereof |
-
2005
- 2005-04-07 KR KR1020050029173A patent/KR20070087703A/en not_active Application Discontinuation
- 2005-12-16 CN CNA2005101340016A patent/CN1845226A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545125A (en) * | 2017-09-21 | 2019-03-29 | 深圳市富满电子集团股份有限公司 | Using the pulse modulation control method and system of pulse width backoff algorithm |
| CN109545125B (en) * | 2017-09-21 | 2023-11-14 | 富满微电子集团股份有限公司 | Pulse modulation control method and system adopting pulse width compensation algorithm |
| CN112017603A (en) * | 2020-09-02 | 2020-12-01 | Tcl华星光电技术有限公司 | Backlight module and driving method thereof |
| US11715431B2 (en) | 2020-09-02 | 2023-08-01 | Tcl China Star Optoelectronics Technology Co., Ltd. | Backlight module and driving method thereof using subfields with different durations |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070087703A (en) | 2007-08-29 |
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