CN100346378C - Plasma display panel and driving method thereof - Google Patents
Plasma display panel and driving method thereof Download PDFInfo
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- CN100346378C CN100346378C CNB2004100586476A CN200410058647A CN100346378C CN 100346378 C CN100346378 C CN 100346378C CN B2004100586476 A CNB2004100586476 A CN B2004100586476A CN 200410058647 A CN200410058647 A CN 200410058647A CN 100346378 C CN100346378 C CN 100346378C
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000007789 gas Substances 0.000 description 23
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 10
- 239000011521 glass Substances 0.000 description 9
- 239000000758 substrate Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 3
- 125000005626 carbonium group Chemical group 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000036962 time dependent Effects 0.000 description 3
- 229910052724 xenon Inorganic materials 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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Abstract
A plasma display driving method is suitable for a plasma display panel. The plasma display panel is provided with a plurality of first display electrodes, a plurality of second display electrodes positioned between the first display electrodes, a plurality of address electrodes vertical to the first display electrodes and the second display electrodes and a plurality of display units positioned at the intersection of the first display electrodes and the second display electrodes and the address electrodes, wherein the first display electrodes comprise an even group and an odd group. A first sustain pulse pair is formed by the sustain pulses supplied to the even groups of the first display electrodes and the second display electrodes, respectively. And a second sustain pulse pair formed by sustain pulses supplied to the odd group of the first display electrodes and the sustain pulses supplied to the second display electrodes, respectively, a phase difference being provided between the sustain pulses supplied to the even group of the first display electrodes and the sustain pulses supplied to the odd group of the first display electrodes, and the display cells on both sides of the second display electrodes being lit by discharge during the sustain period.
Description
Technical field
The present invention relates to a kind of plasma display (Plasma Display Panel, PDP) driving method, particularly relate to a kind of during keeping (sustain period) have the phase place difference driving method of plasma display panel of keeping pulse (sustain pulses) of (phase difference) is provided.
Background technology
PDP utilizes the mode of electrode discharge stored charge to show, owing to have giant-screen, high power capacity and can show full-color (full-color) image, is the flat-panel screens of following tool potentiality.Below be illustrated with regard to ultimate principle and the mode of operation of PDP.
Fig. 1 represents the side cutaway view of display unit among the known technology PDP (cell) structure.As shown in the figure, PDP mainly by two glass substrates 1 and 7 and upper member formed, the cavity between glass substrate 1 and 7 (cavity) is then inserted inert gas, as Ne, Xe.On glass substrate 1, comprise and keep electrode (sustain electrodes) X
i, X
I+1With scan electrode Y
i, Y
I+1(extending parallel to each other), dielectric layer 3 and diaphragm (protective film) 5.X
iAnd Y
iBetween distance less than Y
iAnd X
I+1Between distance, and X
iAnd Y
iWith X
I+1And Y
I+1Form electrode pair (electrode pair) (X respectively
i, Y
i) and (X
I+1, Y
I+1).Then comprising address electrode (addresselectrodes) A and the fluorescent material 9 on it on the glass substrate 7.
In addition, gas discharge betides D1 and D2 at electrode pair (X
i, Y
i) and (X
I+1, Y
I+1) between, so an electrode pair provides a display line (display line), and a display unit is defined in the intersection point of an electrode pair and a data electrode.
Fig. 2 represents to utilize the calcspar of the plasma scope that PDP formed shown in Figure 1.As shown in the figure, PDP 100 is by scan electrode Y1～Yn parallel to each other and keeps electrode X1～Xn, and drives perpendicular to scan electrode Y1～Yn and the address electrode A1～Am that keeps electrode X1～Xn.Plasma scope comprises that also control circuit (control circuit) 110, Y scanner driver (Yscan driver) 112A and 112B, X keep driver (X sustain driver) 114 and address driver (address driver) 116.Y scanner driver 112A is used for producing required waveform during each, and Y scanner driver 112B (address period) during writing produces scanning impulse.Control circuit 110 is according to clock signal C LOCK, data-signal DATA, vertical synchronizing signal VSYNC and horizontal-drive signal HSYNC that the outside provided, produce the needed time sequence information of each driver, wherein clock signal C LOCK represents data transfer clock, data-signal DATA represents video data, and vertical synchronizing signal VSYNC and horizontal-drive signal HSYNC then are in order to define the sequential of single picture (frame) and single scanning line (scanning line).Control circuit 110 is delivered to address driver 116 with video data (display data) and clock, and relevant picture control timing is delivered to Y scanner driver 112B and kept driver 114.Should be noted that, show that related data is to deliver to address driver 116 by control circuit 110, and when Y scanner driver 112B scans each scan electrode Y1～Yn in regular turn during writing, video data is write in each display unit by address electrode A1～Am.Its detailed display operation and the needed control signal of each electrode then are described as follows in conjunction with Fig. 3 and Fig. 4.
Fig. 3 represents that known technology drives the operation chart that PDP shows a picture (frame).As shown in the figure, each picture segmentation becomes 8 subgraph fields (sub-field) SF1～SF8, and whether each subgraph field is bright secretly comes display gray scale grade (gray scale) according to selecting respectively.Each subgraph field by three operating operations during institute form, be respectively (reset period) R1～R8 during the replacement, write during (address period) A1～A8 and keep during (sustain period) S1～S8.
During the replacement be when being used for removing last subgraph field and showing remaining electric charge, and the wall electric charge (wall charge) that in each display unit, stays some.Then be by address discharge (address discharge) (promptly being the on state) accumulation wall electric charge in the display unit that needs show during writing.Then be to accumulate in the display unit of wall electric charge by the address discharge, showing during keeping to keep discharge (sustain discharge).Wherein, during the replacement R1～R8 and keep during S1～S8 be whole display units of handling simultaneously on the PDP, A1～A8 carries out write operation for each display unit on each scan electrode Y1～Yn in regular turn during writing.In addition, display brightness be with keep during the length of S1～S8 be directly proportional.In the example of Fig. 3, the length of S1～S8 can be made as 1: 2: 4 during keeping among each subgraph field SF1～SF8: 8: 16: 32: 64: 128 ratio, realize 256 gray shade scales by this.
Fig. 4 represents known technology sequential chart of control signal on each electrode in single subgraph field, wherein the signal on the address electrode Ai is produced by address driver 116, the signal of keeping on the electrode X is produced by keeping driver 114, and the signal on scan electrode Y1～Yn is produced by scanner driver 112A and scanner driver 112B.As shown in the figure, each subgraph field be comprise replacement during, write during and keep during.Below describe in detail signal waveform during each with and the operation that caused.
Time point a during resetting, scan electrode Y1～Yn is made as 0V, keep then send on the electrode X magnitude of voltage be VS+VW write pulse (write pulse) 201, wherein magnitude of voltage VS+VW is greater than the discharge start voltage of keeping between electrode X and the Yi (discharge start voltage).Therefore, occur universe between electrode X and the scan electrode Yi and write discharge (total writedischarge) W keeping.This discharge process can be accumulated negative charge keeping on the electrode X, has accumulated carbonium on scan electrode Y1～Yn.Since the accumulation the electric field that negative charge and carbonium caused can balance out the pressure reduction of keeping between the electrode, so universe write the discharge W time very short.
Then at time point b, keep electrode X and be made as 0V, that then sends into magnitude of voltage on all scan electrode Y1～Yn and be VS keeps pulse (sustain pulse) 202, wherein magnitude of voltage VS add accumulate on keep the magnitude of voltage that electric charge caused between electrode must be greater than the discharge start voltage between scan electrode Yi and the X.Therefore occur universe between electrode X and the scan electrode Y1～Yn and keep discharge (totalsustain discharge) S keeping.This discharge process is opposite with last discharge process, keeping meeting accumulation carbonium on the electrode X, can accumulate negative charge on scan electrode Y1～Yn.
Then at time point c, scan electrode Y1～Yn is made as 0V, keeps the reset pulse (erase pulse) 203 of then sending into magnitude of voltage on the electrode X and being lower than VS.Reset pulse 203 is to be used for neutralization (neutralize) Partial charge, stays needed wall electric charge at last but still make all display units be in not illuminating state on scan electrode Y1～Yn.During this wall electric charge makes during follow-up the writing, can carry out write operation with lower magnitude of voltage.
During then beginning to write.At first at time point d, will keep electrode X and scan electrode Y1～Yn is pulled to magnitude of voltage VS.Then, send into scanning impulse (scan pulse) 204 one by one for each scan electrode Y1～Yn in regular turn, on address electrode A1～Am, send into the address pulse that magnitude of voltage is VA according to the video data of correspondence simultaneously from time point e.When certain display unit receives scanning impulse and address pulse simultaneously, then can write discharge, make this display unit enter illuminating state.
After the scanning of finishing all scan electrode Y1～Yn, then enter keep during.At first electrode X will be kept respectively and scan electrode Yi is made as 0V.Then in staggered mode (time point f and time point g), keep pulse 205 to what keep that electrode X and scan electrode Yi send into identical magnitude of voltage.Gas discharge promptly can take place and luminous in be converted into illuminating state this moment during writing display unit.Mandatory declaration be, above-mentioned illustrated drive signal waveform is an example only, the waveform in practical application is an example difference therewith, but ultimate principle is consistent.
During the keeping of the 5A～5D figure expression known technology, dissimilar scan electrodes with keep that electrode produces keep the pulse waveform sequential chart.During Fig. 5 A is illustrated in and keeps, there is not gap (positive by positive voltage; No gap) pattern-driven scanning with keep electrode keep pulse sequence figure.During Fig. 5 B is illustrated in and keeps, by gapped (the positive ﹠amp of positive voltage; Gap) pattern-driven scanning with keep electrode keep pulse sequence figure.During Fig. 5 C is illustrated in and keeps, there is not gap (negative by negative voltage; No gap) pattern-driven scanning with keep electrode keep pulse sequence figure.During Fig. 5 D is illustrated in and keeps, by gapped (the negative ﹠amp of negative voltage; Gap) pattern-driven scanning with keep electrode keep pulse sequence figure.As shown in FIG., pulse X represents the time dependent voltage of keeping electrode, and pulse Y represents the voltage of time dependent scan electrode, pulse X-Y represent time dependent keep and scan electrode between voltage difference.In Fig. 5 A～5D, the pulse of keeping of all Y electrodes is all same-phase (phase), and the pulse of keeping of all X electrodes is all same-phase, and the impulse phase of keeping of X electrode and Y electrode differs 180 °.
Yet, traditional driving method, its shortcoming is the display unit that all desire to light on the panel, it is all identical to keep pulse because of it is received, so also can the discharge simultaneously along with keeping pulse.When the display unit of desiring on the panel to light increased, moment can produce great discharge current, and along with the gas of filling in the panel (as xenon Xe) ratio increases, its discharge current also can be along with increasing again.So can cause driving circuit to bear greatly, also can cause because of excessive discharge current has bigger depression (notch) to produce on the waveform of keeping pulse, and influences the effect of display unit discharge, causes picture to have and puts out a generation.
Fig. 6 represents to keep the waveform synoptic diagram of keeping pulse of electric current on electrode, scan electrode and the scan electrode, X
(v)The voltage of electrode, Y are kept in expression
(v)The voltage of expression scan electrode, Y
(I)The flow through size of current of scan electrode of expression.As shown in the figure, electric current 60 and 61, voltage sag 62 produce on scan electrode.Electric current 60 is gas-discharge current (gas discharge current), is the electric current of lighting that display unit produced; Electric current 61 is called displacement (displacement) electric current, and its capacitive load in order to counter plate during keeping carries out charge or discharge and the variation that produces voltage.
Yet, because all resistive existence on the side circuit, so the electric current on the scan electrode 60 can cause the voltage sag 62 of scan electrode, and need have the driver drives scan electrode of high current driving force.In addition, voltage sag 62 can influence the gas discharge of PDP and cause putting out a generation.Identical situation also can occur in and keep on the electrode, but following still be example explanation with the scan electrode, all methods also all can be overlapped and are used to keep electrode and driver thereof.
Summary of the invention
In view of this, purpose of the present invention is kept the display unit that interpulse phase driven is lighted in that a kind of driving method of plasma display panel is provided by adjustment, to reduce the moment gas-discharge current during keeping.
Based on above-mentioned purpose, the invention provides a kind of driving method of plasma display panel, it is applicable to a plasma display panel.This plasma display panel has a plurality of first show electrodes, be positioned at a plurality of second show electrodes between this first show electrode, perpendicular to a plurality of address electrodes of this first show electrode and second show electrode and be positioned between this first show electrode and second show electrode a plurality of display units with the address electrode intersection, this first show electrode comprises an even number group and an odd number group.Providing one first, to keep pulse right, and it is formed by the pulse of keeping of the even number group who offers this first show electrode and this second show electrode respectively.And providing one second, to keep pulse right, it is formed by the pulse of keeping of the odd number group who offers this first show electrode and this second show electrode respectively, wherein offer this first show electrode the even number group the odd number group who keeps pulse and this first show electrode keep the interpulse phase differential that has, and the display unit of these second show electrode both sides is lighted by discharge during keeping.
Description of drawings
Fig. 1 represents the side cutaway view of display unit among the known technology PDP (cell) structure.
Fig. 2 represents to utilize the calcspar of the plasma scope that PDP formed shown in Figure 1.
Fig. 3 represents that known technology drives the operation chart that PDP shows a picture.
Fig. 4 represents known technology sequential chart of control signal on each electrode in single subgraph field.
During Fig. 5 A is illustrated in and keeps, there are not pattern-driven scanning in gap and the sequential chart of keeping electrode by positive phase.
During Fig. 5 B is illustrated in and keeps, by gapped pattern-driven scanning of positive phase and the sequential chart of keeping electrode.
During Fig. 5 C is illustrated in and keeps, there are not pattern-driven scanning in gap and the sequential chart of keeping electrode by minus phase.
During Fig. 5 D is illustrated in and keeps, by gapped pattern-driven scanning of minus phase and the sequential chart of keeping electrode.
Fig. 6 represents to keep the waveform synoptic diagram of keeping pulse of electric current on electrode, scan electrode and the scan electrode.
Fig. 7 represents the side cutaway view of display cell structure among the PDP of first embodiment of the invention.
Fig. 8 represents the calcspar of the plasma scope that PDP formed of first embodiment of the invention.
During Fig. 9 represents during the keeping of first embodiment of the invention, offer scan electrode and the waveform synoptic diagram of keeping pulse of keeping electrode.
Figure 10 represents the calcspar of the plasma scope that PDP formed of second embodiment of the invention.
During Figure 11 represents during the keeping of second embodiment of the invention, offer scan electrode and the waveform synoptic diagram of keeping pulse of keeping electrode.
The reference numeral explanation
1,7～glass substrate
3～dielectric layer
5～diaphragm
9～fluorescent material
60,61～electric current
62～voltage sag
80,82,90,92, D1, D2～gas discharge
100～plasma display
110,210,310～control circuit
112A, 112B, 212A, 212B, 312A, 312B～scanner driver
114,214,215,314～keep driver
116,216,316～address driver
201～write pulse
202,205, X
Odd (v), X
Even (v), Y
Odd (v), Y
Even (v)～keep pulse
203～reset pulse
204～scanning impulse
A..g～time point
A, A1..Am～address electrode
A1..A8～during writing
During R1..R8～replacement
S～universe is kept discharge
S1..S8～during keeping
SF1..SF8～subgraph field
VS, VW～magnitude of voltage
W～universe writes discharge
X, X1..Xn, X
i, X
I+1～keep electrode
Xodd～first kept electrode
Xeven～second kept electrode
X (v)～keep the voltage of electrode
Y, Y1..Yn, Y
i, Y
I+1～scan electrode
Yodd～first scan electrode
Yeven～second scan electrode
Y
(I)The voltage swing of～the scan electrode of flowing through
Y
(v)The voltage of～scan electrode
Embodiment
For above and other objects of the present invention, feature and advantage can be become apparent, cited below particularlyly go out preferred embodiment, and be described with reference to the accompanying drawings as follows.
The invention provides a kind of plasma display and driving method thereof.
First embodiment
Fig. 7 represents the side cutaway view of display cell structure among the PDP of first embodiment of the invention.PDP mainly by two glass substrates 1 and 7 and upper member formed, the cavity between glass substrate 1 and 7 is then inserted inert gas, as Ne, Xe.On glass substrate 1, comprise and keep electrode X
i, X
I+1With scan electrode Y, (extending parallel to each other), dielectric layer 3 and diaphragm 5.Then comprising address electrode A and the fluorescent material 9 on it on the glass substrate 7.Therefore, each PDP display unit comprises three kinds of electrodes, promptly keeps electrode (X
i, X
I+1), the scan electrode Y and the vertical address electrode that are parallel to each other.In addition, gas discharge D1 and D2 betide electrode X respectively
i, between the Y with electrode Y, X
I+1Between.To keep pulse alternatively offers scan electrode Y and keeps electrode X
i, will make scan electrode Y luminous with keeping that display unit that electrode Xi is in illuminating state produces gas discharge D1, will keep pulse and alternatively offer scan electrode Y and keep electrode X
I+1, will make scan electrode Y and keep electrode X
iThe display unit that is in illuminating state produces gas discharge D2.Therefore, all be effective viewing area in the electrode both sides.
Fig. 8 represents the calcspar of the plasma scope that PDP formed of first embodiment of the invention.As shown in the figure, PDP 200 keeps electrode Xodd and second by scan electrode Y1～Yn parallel to each other, first to keep electrode Xeven and driven perpendicular to scan electrode Y1～Yn and first and second address electrode A1～Am that keeps electrode.In addition, plasma scope comprises that control circuit 210, Y scanner driver 212A and 212B, Xodd keep driver 214, Xeven keeps driver 215 and address driver 216.Y scanner driver 212A is used for producing required waveform during each, and Y scanner driver 212B produces scanning impulse during writing.Control circuit 210 is according to clock signal C LOCK, data-signal DATA, vertical synchronizing signal VSYNC and horizontal-drive signal HSYNC that the outside provided, produce the needed time sequence information of each driver, wherein clock signal C LOCK represents data transfer clock, data-signal DATA represents video data, and vertical synchronizing signal VSYNC and horizontal-drive signal HSYNC then are in order to define the sequential of single picture and single scanning line.Show that related data delivers to address driver 216 by control circuit 210, and when Y scanner driver 212B scans each scan electrode Y1～Yn in regular turn during writing, video data is write in each display unit by address electrode A1～Am.During keeping, at scan electrode Y1～Yn and keep to provide between electrode Xeven and Xodd and keep pulse.
During Fig. 9 represents during the keeping of first embodiment of the invention, offer scan electrode and the waveform synoptic diagram of keeping pulse of keeping electrode.Note, in the present embodiment, scan electrode with keep electrode and operate in " positive does not have the gap " pattern, in practical application, also be operable in " positive is gapped " pattern, " negative does not have the gap " pattern and " negative is gapped " pattern.
As shown in the figure, X
Even (v)Expression offer first keep electrode Xeven keep pulse sequence figure, X
Odd (v)Expression offer second keep electrode Xodd keep pulse sequence figure, Y
(v)What expression offered the Y scan electrode keeps pulse sequence figure, (Y
(v)-X
Even (v)) expression Y scan electrode and first keeps voltage difference sequential chart between electrode Xeven, (Y
(v)-X
Odd (v)) expression Y scan electrode and second is kept the voltage difference sequential chart between electrode Xodd, and Y
(I)The flow through voltage swing sequential chart of scan electrode of expression.In addition, electric current Y
(I)The electric current of a single scanning electrode is flow through in expression, but not refers to all scan electrodes.As shown in Figure 9, all scan electrodes to keep impulse phase all identical, have a phase differential between electrode but keep at first and second.
As shown in Figure 9, current waveform Y
(I)Gas-discharge current 80 and 82 result from the scan electrode, gas discharge 80 is caused by first gas discharge of keeping between electrode Xeven and Y scan electrode, and gas discharge 82 is caused by second gas discharge of keeping between electrode Xodd and Y scan electrode.Keep between electrode Xodd and have phase differential because first keeps electrode Xeven and second, gas discharge 80 and gas discharge 82 occur in different time.Because gas-discharge current staggers mutually in time domain, make the peak dot height of the gas-discharge current on the scan electrode reduce to half, the voltage sag degree also reduces to half simultaneously, and it helps to improve the stability and the homogeneity of gas discharge.In addition, the peak dot discharge current on the scan electrode is reduced to half, causes the electric current that sparks to reduce during keeping.Therefore, the turntable driving integrated circuit on the Y scanner driver 312B (Scan IC) need not selected the integrated circuit of tool higher nominal electric current for use, and the load of Y scanner driver 312A also will alleviate.
Second embodiment
Figure 10 represents the calcspar of the plasma scope that PDP formed of second embodiment of the invention.As shown in the figure, PDP 300 is by the first scan electrode Yeven parallel to each other and the second scan electrode Yodd, keeps electrode X and driven perpendicular to first and second scan electrode and address electrode A1～Am of keeping electrode X.Plasma scope comprises that control circuit 310, Y scanner driver 312A and 312B, X keep driver 314 and address driver 316.Y scanner driver 312A is used for producing required waveform during each, and Y scanner driver 312B produces scanning impulse during writing.Control circuit 310 is according to clock signal C LOCK, data-signal DATA, vertical synchronizing signal VSYNC and horizontal-drive signal HSYNC that the outside provided, produce the needed time sequence information of each driver, wherein clock signal C LOCK represents data transfer clock, data-signal DATA represents video data, and vertical synchronizing signal VSYNC and horizontal-drive signal HSYNC then are in order to define the sequential of single picture and single scanning line.The demonstration related data is delivered to address driver 316 by control circuit 310, and when Y scanner driver 312B scans each scan electrode Yeven and Yodd in regular turn during writing, by address electrode A1～Am video data is write in each display unit.During keeping, at scan electrode Yeven and Yodd and keep to provide between electrode X and keep pulse.
During Figure 11 represents during the keeping of second embodiment of the invention, offer scan electrode and the waveform synoptic diagram of keeping pulse of keeping electrode.Note, in the present embodiment, scan electrode with keep electrode and operate in " positive does not have the gap " pattern, also be operable in " positive is gapped " pattern, " negative does not have the gap " pattern and " negative is gapped " pattern in practical application.
As shown in the figure, Y
Even (v)What expression offered the first scan electrode Yeven keeps pulse sequence figure, Y
Odd (v)What expression offered the second scan electrode Yodd keeps pulse sequence figure, X
(v)What expression offered that X keeps electrode keeps pulse sequence figure, (X
(v)-Y
Even (v)) represent that the first scan electrode Yeven and X keep interelectrode voltage difference sequential chart, (Y
Odd (v)-X
(v)) represent that the second scan electrode Yodd and X keep interelectrode voltage difference sequential chart, and X
(I)The size of current sequential chart that expression is flowed through and kept electrode.In addition, electric current X
(I)The electric current of a single sustain electrode is flow through in expression, but not refers to all scan electrodes.As shown in figure 11, all keep electrode to keep impulse phase all identical, but between first and second scan electrode, have a phase differential.
As shown in figure 11, current waveform X
(I)Gas-discharge current 90 and 92 result from the scan electrode, gas discharge 90 is kept interelectrode gas discharge by the first scan electrode Yeven and X and is caused, and gas discharge 92 is caused by the gas discharge between the second scan electrode Yodd and X scan electrode.Owing to have phase differential between the first scan electrode Yeven and the second scan electrode Yodd, gas discharge 90 occurs in different time with gas discharge 92.Because gas-discharge current staggers mutually in time domain, make the peak dot height of keeping the gas-discharge current on the electrode reduce to half, the voltage sag degree also reduces to half simultaneously, and it helps to improve the stability and the consistance of gas discharge.In addition, the peak dot discharge current of keeping on the electrode is reduced to half, causes the electric current that sparks to reduce the load that X keeps driver 314 during keeping and also will alleviate.
The present invention is divided into two partly with all display lines of panel, make its impulse phase of accepting of keeping stagger, make stagger the discharge time of the display unit that all desire to light, alleviate the burden of circuit with the size that reduces immediate current, and increase the homogeneity of panel discharge.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; those skilled in the art can be used for a variety of modifications and variations under the premise without departing from the spirit and scope of the present invention, so protection scope of the present invention is as the criterion with claim of the present invention.
Claims (8)
1. plasma display driving method, it is applicable to a plasma display panel, above-mentioned plasma display has a plurality of first show electrodes, be positioned at a plurality of second show electrodes between above-mentioned first show electrode, perpendicular to a plurality of address electrodes of above-mentioned first show electrode and second show electrode and be positioned at a plurality of display units between above-mentioned first show electrode and second show electrode, above-mentioned first show electrode comprises an even number group and an odd number group, and above-mentioned driving method comprises the following steps:
Providing one first, to keep pulse right, and above-mentioned first keeps pulse to being formed by the pulse of keeping of even number group who offers above-mentioned first show electrode and above-mentioned second show electrode respectively; And
Providing one second, to keep pulse right, above-mentioned second keeps pulse to being formed by the pulse of keeping of odd number group who offers above-mentioned first show electrode and above-mentioned second show electrode respectively, the keeping of the odd number group who keeps pulse and above-mentioned first show electrode that wherein offers the even number group of above-mentioned first show electrode interpulsely has a phase differential, and the display unit of the above-mentioned second show electrode both sides is lighted by discharge during keeping.
2. plasma display driving method as claimed in claim 1, wherein, above-mentioned first show electrode is for keeping electrode.
3. plasma display driving method as claimed in claim 1, wherein, above-mentioned second show electrode is the one scan electrode.
4. plasma display driving method as claimed in claim 1, wherein, above-mentioned first show electrode is a scan electrode.
5. plasma display driving method as claimed in claim 1, wherein, above-mentioned second show electrode is to keep electrode.
6. plasma display driving method, it is applicable to a plasma display panel, above-mentioned plasma display has a plurality of first to be kept electrode, a plurality of second and keeps electrode, is positioned at above-mentioned first and second and keeps interelectrode a plurality of scan electrode, keep an address electrode of electrode and above-mentioned scan electrode and be positioned at above-mentioned first perpendicular to above-mentioned first and second and keep electrode and above-mentioned scan electrode and above-mentioned second a plurality of display units of keeping between electrode and above-mentioned scan electrode, and above-mentioned driving method comprises the following steps:
Providing one first, to keep pulse right, and above-mentioned first keeps pulse to being formed by offering above-mentioned first pulse of keeping of keeping electrode and above-mentioned scan electrode respectively; And
Providing one second, to keep pulse right, above-mentioned second keeps pulse to being formed by offering above-mentioned second pulse of keeping of keeping electrode and above-mentioned scan electrode respectively, wherein above-mentioned first keeps pulse pair and above-mentioned second keeps pulse to having a phase differential, and the display unit of above-mentioned scan electrode both sides is lighted by discharge during keeping.
7. Plasma Display drive unit, it is applicable to a plasma display panel, above-mentioned plasma display has a plurality of first to be kept electrode, a plurality of second and keeps electrode, is positioned at above-mentioned first and second and keeps interelectrode a plurality of scan electrode, keep a plurality of address electrodes of electrode and above-mentioned scan electrode and be positioned at above-mentioned first perpendicular to above-mentioned first and second and keep electrode and above-mentioned scan electrode and above-mentioned second a plurality of display units of keeping between electrode and above-mentioned scan electrode, and above-mentioned drive unit comprises:
One control circuit is in order to receive external display data and relative clock data;
One address driver is coupled to above-mentioned control circuit, and it is in order to drive above-mentioned address electrode;
The one scan driver is coupled to above-mentioned control circuit, and it is in order to provide pulse to above-mentioned scan electrode; And
One keeps driver, is coupled to above-mentioned control circuit, and it is in order to providing one first to keep pulse and keep electrode and one second to above-mentioned first and keep pulse and keep electrode to above-mentioned second,
Above-mentioned control circuit is controlled above-mentioned scanner driver and the above-mentioned driver of keeping, and makes:
Providing one first, to keep pulse right, and above-mentioned first keeps pulse to being formed by offering above-mentioned first pulse of keeping of keeping electrode and above-mentioned scan electrode respectively; And
Providing second, to keep pulse right, above-mentioned second keeps pulse to being formed by offering above-mentioned second pulse of keeping of keeping electrode and above-mentioned scan electrode respectively, wherein above-mentioned first and second kept pulse to having a phase differential, and the display unit of above-mentioned scan electrode both sides is lighted by discharge during keeping.
8. Plasma Display drive unit as claimed in claim 7, wherein, above-mentioned scan electrode is kept between the electrode at above-mentioned first and second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100586476A CN100346378C (en) | 2004-07-27 | 2004-07-27 | Plasma display panel and driving method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100586476A CN100346378C (en) | 2004-07-27 | 2004-07-27 | Plasma display panel and driving method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1588510A CN1588510A (en) | 2005-03-02 |
| CN100346378C true CN100346378C (en) | 2007-10-31 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003027995A2 (en) * | 2001-09-26 | 2003-04-03 | Thomson Licensing Sa | Method for video image display on a display device for correcting large zone flicker |
| TW527577B (en) * | 1999-08-30 | 2003-04-11 | Au Optronics Corp | Driving method and circuit of plasma display |
| JP2003345292A (en) * | 2002-05-24 | 2003-12-03 | Fujitsu Hitachi Plasma Display Ltd | Method for driving plasma display panel |
| CN1469336A (en) * | 2002-06-21 | 2004-01-21 | ��ʿͨ��ʽ���� | Method for driving plasma display panel and plasma display device |
| TW579493B (en) * | 2003-02-20 | 2004-03-11 | Au Optronics Corp | Drive method of plasma display panel |
-
2004
- 2004-07-27 CN CNB2004100586476A patent/CN100346378C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW527577B (en) * | 1999-08-30 | 2003-04-11 | Au Optronics Corp | Driving method and circuit of plasma display |
| WO2003027995A2 (en) * | 2001-09-26 | 2003-04-03 | Thomson Licensing Sa | Method for video image display on a display device for correcting large zone flicker |
| JP2003345292A (en) * | 2002-05-24 | 2003-12-03 | Fujitsu Hitachi Plasma Display Ltd | Method for driving plasma display panel |
| CN1469336A (en) * | 2002-06-21 | 2004-01-21 | ��ʿͨ��ʽ���� | Method for driving plasma display panel and plasma display device |
| TW579493B (en) * | 2003-02-20 | 2004-03-11 | Au Optronics Corp | Drive method of plasma display panel |
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| CN1588510A (en) | 2005-03-02 |
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