CN100377186C - Plasma display driving method and device - Google Patents
Plasma display driving method and device Download PDFInfo
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- CN100377186C CN100377186C CNB2004100542567A CN200410054256A CN100377186C CN 100377186 C CN100377186 C CN 100377186C CN B2004100542567 A CNB2004100542567 A CN B2004100542567A CN 200410054256 A CN200410054256 A CN 200410054256A CN 100377186 C CN100377186 C CN 100377186C
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Abstract
The present invention relates to a driving method for a plasma display unit. The present invention is a driving method for a plasma display unit with a selective erasing mode, which can provide a resetting voltage higher than a persistent voltage. The present invention is characterized in that a driving method for a plasma display unit with a selective erasing mode can be divided into a plurality of procedures as follows: a procedure that one of scanning electrodes is provided with a lower scanning voltage in negative polarity than a base voltage in the addressing period, a procedure that the other electrodes except the electrode which obtain the scanning voltage in negative polarity are provided with a higher scanning voltage in positive polarity than the base voltage in the addressing period, a pulse maintaining procedure that scanning electrodes and maintaining electrodes are alternatively provided with a higher maintaining voltage than the scanning voltage in positive polarity in the maintaining period, and a procedure that a voltage which superimposes the voltage magnitude higher than the scanning voltage in positive polarity and the voltage magnitude equal to or lower than the voltage magnitude of the maintaining voltage and the scanning voltage in positive polarity provides the scanning electrodes with the pulse in electron tubes.
Description
[technical field]
The present invention be with about plasma display, particularly about the supply than the selectivity cancellation plasma display device driver related invention of keeping the higher resetting voltage of voltage.
[background technology]
Plasma display (PLASMA DISPLAY PANEL, hereinafter to be referred as " PDP ") by helium+xenon, the ultraviolet ray of 147 nanometers that the combination gas of neon+xenon and helium+neon+inert gases such as xenon produces when discharge makes light-emitting phosphor, demonstrates the picture that comprises literal or chart.This kind plasma display not only is easy to broad membranization and maximization, and can develop by means of state-of-the-art technology, and better image quality is provided.Therefore the surperficial sputter of building up the wall electric charge and taking place when especially 3 electrode alternating current surface discharge type plasma displays can be avoided discharging, thereby guard electrode have low voltage drive, the advantage that the life-span is long.
Fig. 1 is the structural representation that generally is arranged in the discharge cell of rectangular among the AC type PDP.
With reference to Figure 1 and Figure 2, the discharge cell that 3 electrodes exchange surface discharge type PDP comprises the scanning (Y) that is formed on the upper substrate 10 and keeps electrode (Z) and be formed at addressing electrode (X) on the lower basal plate.The scan electrode (Y) and the fan width of cloth of keeping electrode (Z) respectively and transparency electrode (12Y, 12Z) total littler than the fan width of cloth of transparency electrode (12Y, 12Z), be formed at the wire electrode (13Y, 13Z) of transparency electrode one lateral edges.
Transparency electrode (12Y, 12Z) is being formed on the upper substrate 10 by indium tin oxide (Indium-Tin-Oxide) usually. and metallic bus bar electrode (13Y, 13Z) is usually by metals such as chromium forming on transparency electrode (12Y, 12Z), and plays a part minimizing and descend because of the voltage that the high resistance transparency electrode is produced.The dielectric layer 14 of upper substrate and diaphragm 16 layerings are attached to by scan electrode (Y) and keep on the upper substrate that electrode (Z) forms side by side.The wall electric charge that produces during plasma discharge accumulates on the upper dielectric layer.Diaphragm 16 is preventing that also can improve 2 electronics when the sputter that produces because of plasma discharge from causing upper substrate to lure electrics layer 14 damages emits efficient.Usually magnesium oxide is used as diaphragm.
Adhere to lower dielectric layer 22 and dividing wall 24 on the formed lower basal plate 18 of addressing electrode (X), phosphor layers has been smeared on conductor layer 22 and dividing wall 24 surfaces below.Addressing electrode (X) be formed at scan electrode (Y) and keep electrode (Z) crisscross on.Next door 24 is arranged side by side with addressing electrode (X), and ultraviolet ray and visible light that it produces in the time of can preventing because of discharge are leaked on the discharge cell that adjoins.Can produce a kind of visible rays in redness, green or the cyan under the action of ultraviolet ray that phosphor layers 26 produces when plasma discharge.Be injected into the helium+xenon that is used to discharge, neon+xenon, the mixed gas of helium+neon+inert gases such as xenon in the discharge space that between last/lower basal plate 10,18 and dividing wall 24, forms.
This 3 extremely electric interchange surface discharge type PDP are divided into the luminous time different a plurality of subdomains of number to a frame and drive, to realize the gray scale of image.Each subdomain is divided into again makes the reseting period that is equal to of discharge, select discharge cell address period and according to discharge return the keeping of the existing gray scale of numerical table during.For example, as imagine in the situation that picture is appeared as 256 gray scales shown in Figure 3, be equivalent to 1/60 second frame (16.67ms) be divided into 8 subdomains (SF1-SF8, in like manner, 8 subdomains (SF1-SF8) are divided into reseting period once more respectively, address period is during keeping.Here the reseting period of each subdomain and address period equate, on the contrary, during they keep in each subdomain with 2 n power (n=1,2,3,4, ratio 5....) increases.Difference during subdomain is kept is achieved the gray scale of image.
Mode shown in Figure 3 is described as follows:
The 1st subdomain (SF1) is divided into the reseting period that picture is manifested, and closes the address period of selected discharge cell and makes the selected discharge cell of address discharge battery in addition keep the interdischarge interval of keeping of discharge.And during the 2nd to the 8th subdomain (SF2-SF8) does not have that above-mentioned institute picture manifests (reseting period), be divided into the address period of closing selected discharge cell and make battery beyond the selected discharge cell of address discharge keep the interdischarge interval of keeping of discharge.
Above this PDP according in address period, the discharge cell that address discharge is selected whether luminous is divided into two kinds of selectivity writing mode and selectivity cancellations.At first say the driving method of selectivity writing mode, reseting period electricity draw close after, the selected discharge cell of address period is unlocked, follow keep during, keep discharge by the selected discharge cell of address period discharge and come display image.
Fig. 4 is the synoptic diagram according to the drive waveforms of PDP driving method generation shown in Figure 3.
As shown in Figure 4, comprise first subdomain (SF1) in the frame of PDP before this and be divided into reseting period (RPD), address period (APD) during keeping (SPD), drives.
In reseting period (RPD), all discharge cell generation reset discharges are opened discharge cell; In address period (APD), all discharge cells that are unlocked in reseting period (RPD) are closed selectively; During keeping, in (SPD), there is not selecteed discharge cell to keep discharge in the address period.
Reseting period (RPD) can be divided into to scan electrode (Y) and the electron tube pulse (RPz) of keeping electrode (Z) and provide electron tube pulse (RPz) supply with during (RPD1) and the pulse signal supply of pulse signal is provided during (RPD2) (RPD2).
During electron tube pulse (RPz) is supplied with in (RPD1), the electron tube pulse (RPy) of positive polarity (+) is supplied to scan electrode (Y), the electron tube pulse (RPz) of negative polarity (-) is supplied to keeps electrode (Z), in addition, in (RPD1), basic current potential (GND) was supplied to addressing electrode (X) during electron tube pulse (RPz) was supplied with. here the electron tube pulse (RPy) of positive polarity (+) with keep voltage (Vs) and be set at same voltage.In addition, the electron tube pulse (RPz) of negative polarity (-) is set at has than keeping the higher absolute value voltage of voltage (Vs).The electron tube pulse (RPy) of positive polarity (+) is supplied to scan electrode (Y) like this, the electron tube pulse (RPz) of negative polarity (-) is supplied to keeps electrode (Z), just caused scan electrode (Y) and kept voltage difference between electrode (Z), made all discharge cells that reset discharge take place.Thereupon, obtain having formed in the scan electrode (Y) of electron tube pulse (RPy) of positive polarity (+) the wall electric charge of negative polarity (-).The keeping of electron tube pulse (RPz) that obtains negative polarity (-) forms positive polarity (+) wall electric charge in the electrode (Z).
(RPD 2) interior the 2nd stable pulse (Pz) was supplied to and keeps electrode (Z) during pulse signal was supplied with, and alternated therewith, and the 1st stable pulse (Py) is supplied to scan electrode (Y).At this moment, the magnitude of voltage of the 1st stable pulse (Py) and the 2nd stable pulse (Pz) is set to keep voltage (Vs) identical, thereby, scan electrode (Y) and keep keeping voltage official post scan electrode (Y) and keeping between the electrode (Z) between the electrode (Z) stable discharging takes place forms duplicate wall electric charge (being that discharge cell is opened) in all discharge cells
(negative polarity (-) scanning impulse (SP) Vy) is provided to sweep trace (Y), and data pulse (DP) is provided to addressing electrode (X) synchronously with scanning impulse (SP) to drop to scanning voltage in the address period (APD) successively.At this moment, obtain in the discharge cell that data pulse (DP) supplies with address discharge taking place, promptly eliminate discharge, discharge cell is closed.
(SUSPy SUSPz) is alternately offered scan electrode (Y) and keep electrode (Z) to keep pulse during keeping in (SPD).Keep pulse (SUSPy, SUSPz) alternately offered scan electrode (Y) and when keeping electrode (Z), address period (APD) does not have selecteed discharge cell that discharge has taken place to keep, at this moment, the number that returns of discharge, performance and the corresponding gray-scale value of gray scale weight are kept in adjusting.
Another aspect, other subdomain of removing first subdomain (SF1) does not comprise reseting period (RPD).In other words, during other subdomain repetitive addressing (APD) and keep during (SPD), the gray scales that performance changes because of gray-scale value is different.This is elaborated, that is: in first subdomain (SF1) in order to drive PDP with the selectivity cancellation, at reseting period (RPD), all discharge cells are unlocked, thereafter in other subdomain except that first subdomain (SF1), the discharge cell that the reseting period (RPD) of first subdomain (SF1) is unlocked is closed selectively, simultaneously the representing gradation value.
Fig. 5 is with the driving loop synoptic diagram that produces the selectivity cancellation drive division of drive waveforms shown in Fig. 4.
As shown in Figure 5, the scanning driving part of selectivity cancellation PDP of following previous method is by maintainer 41, and scanning aggregation loop (hereinafter to be referred as " IC ") 42 is provided with supply unit 43, and scanning standard voltage power supply portion 44 and scanning voltage supply unit 45 constitute.
(Q5, Q6), (Q5, internal body diodes-Di 5 Q6) and the 6th diode constitute scans I C42 to reach the 5th and the 6th switch by the 5th and the 6th switch that couples together with push-pull type (push-pull).The the 5th and the 6th switch is from maintainer, and scanning standard voltage power supply portion and scanning voltage operate portions are supplied with scan electrode (Y) selectively to voltage signal.
Operate portions is set by voltage source being set, being connected the 1st switch that is provided with between voltage source and maintainer, is connected the 2nd switch between the 1st switch and scanning standard voltage power supply portion, the internal body diodes of the 1st and the 2nd switch---Di 1 diode and the 2nd diode constitute.The 1st switch and the 2nd switch play at reseting period and provide the effect that waveform is set to scan electrode (Y).
The operate portions of scanning standard voltage is by the 7th switch between scans I C and scan voltage source, and internal body diodes-Di 7 diodes of the 7th switch constitute.The 7th switch plays the control signal that address period is received and replys, and the scanning voltage that provides to scans I C is provided.
The scanning voltage supply unit is by the 3rd and the 4th switch that is connected between scan voltage source and scanning standard voltage supply unit, the internal body diodes of the 3rd and the 4th switch----the 3rd diode and the 4th diode, the capacitor between scan voltage source and the scanning standard voltage power supply portion constitutes.The effect of the 3rd switch is that address period is replied the control signal that receives, and regulates the scanning voltage to scans I C supply.Being connected the 1st capacitor between scanning voltage and scanning standard voltage supply unit this moment fills from scan voltage source and gets scanning voltage.The 4th switch plays replys control signal, regulates the effect to the scanning voltage of scans I C supply.
Driving method for this kind PDP is described as follows: under reseting period (RPD) state, the 1st switch and the 2nd switch (Q1, Q2) open, the 3rd switch and the 4th switch (Q3, Q4) close, at this moment, voltage is set under the variable resistor effect of the 1st switch, forms the pulse that rises to electron tube pulse (RPz) form that voltage is set from basic current potential.This electron tube pulse (RPz) is by the 1st and the 2nd switch, again by the 6th switch internal body diodes---Di 6 diodes are supplied to panel.
But that uses before this is provided with voltage for power supply is not set in addition, use always and keep the same voltage of voltage, in this case, even because of the higher resetting voltage of panel need of work, also can not raise highlyer, thereby resetting voltage also can't be improved because of voltage is set than keeping voltage.
[summary of the invention]
Therefore, the purpose of this invention is to provide the drive unit that to supply with than the selectivity cancellation plasma display of keeping the high resetting voltage of voltage.
In order to reach above purpose, the drive unit of the selectivity cancellation plasma display shown in the enforcement example of the present invention by during keeping to scan electrode (Y) and keep the maintainer that pulse is kept in electrode (Z) alternative supply, reseting period provides the supply unit that is provided with above-mentioned electron tube pulse of keeping the pulse voltage value, address period provides to above-mentioned scan electrode (Y) and is used for selecting discharge cell, has than the above-mentioned scanning voltage supply unit of keeping the electron tube pulse of the lower scanning voltage value of voltage to constitute.
A feature of this device is that the reseting period interscan is provided for behind the capacitor that is arranged on above-mentioned scanning voltage supply unit and keeps voltage and converge, and resupplies panel.
The feature of the scan voltage source of above-mentioned scanning voltage is and provides the voltage source of keeping of keeping voltage can be compatible.
As mentioned above, the drive unit of the plasma display among the present invention makes to obtain in reseting period being provided with that voltage and scanning voltage are superimposed forms higher resetting voltage, with this wall electric charge is fully accumulated, and guarantees operating space.
By above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.
Therefore, the technical scope of this invention is not limited to the content on the instructions, must determine its technical scope according to interest field.
[description of drawings]
Fig. 1 is the synoptic diagram that three electrodes in the past exchange surface discharge type plasma display discharge cell.
Fig. 2 is the distribution of electrodes figure of plasma display shown in Figure 1.
Fig. 3 is the frame synoptic diagram that is used for realizing the 8 bits acquiescence sign indicating number of 256 briliancy.
Fig. 4 is the synoptic diagram that produces drive waveforms according to method for driving plasma display device shown in Figure 3.
Fig. 5 is the selectivity cancellation plasma display scanning work portion synoptic diagram that is used for producing the drive waveforms of Fig. 4.
Fig. 6 is the drive waveforms synoptic diagram according to the selectivity cancellation plasma display of method generation of the present invention.
[embodiment]
Other purpose and the feature of the present invention except that above-mentioned purpose can embody by the explanation to the enforcement example of accompanying drawing with knowing better and send.
Hereinafter with reference to Fig. 6 worth expectation part of the present invention is described:
The resetting voltage that the present invention utilizes former driving loop to generate in reseting period will to be provided with voltage and scanning voltage to lump together.Directly with reference to former driving loop shown in Figure 5, method for driving plasma display device of the present invention is described now.Reseting period the 1st to the 3rd switch open, the 4th switch cuts out, the 5th switch open, the 6th switch and the 7th switch are closed.Because of the 1st and the 2nd switch is in opening, voltage is set supplies with to the A node by the 1st and the 2nd switch.At this moment, because voltage is set and scanning voltage is linked together by floating power supply portion, so only when forming the loop, just power to the B node.In case floating power supply portion make scanning voltage form the loop scanning voltage just and the remittance of floating power supply portion lump together.And scanning voltage charges to the 1st capacitor, thereafter, if floating power supply portion forms the loop with voltage is set, voltage is set just powers to the B node.At this moment, the scanning voltage that voltage and the charging of this forward direction the 1st capacitor are set converges.Simultaneously, at B node place, the voltage that voltage and scanning voltage merge into is set is blocked.This voltage is powered to the drive IC direction by the 3rd switch.Be that the B node is a floating field with the A node, reach the degree of scanning voltage, supply with to the B node at the voltage that converges that voltage and scanning voltage are set that the A point is blocked because the voltage between two nodes floats.The voltage that this set voltage and scanning voltage merge into is powered to panel by the 3rd and the 5th switch of drive IC 42.The pulse of variable resistor generation from basic current potential to electron tube pulse (RPz) form that voltage is set of voltage-regulation the 1st switch is set at this moment.Subsequently, the voltage of supplying with panel at reseting period offers panel to reset pulse, and this reset pulse has and equals to rise to the pulse voltage value of electron tube pulse (RPz) form that voltage source is set and the resetting voltage value of scan voltage source magnitude of voltage sum from basic voltage.
Here, the magnitude of voltage of voltage source and the magnitude of voltage addition of scanning voltage are set obtain the upwards rising only of resetting voltage value, this is because scanning voltage can not at will be reduced.If but regulate the variable resistor of the 1st switch, regulate the inclination of electron tube pulse, just can make to adjust with the final highly identical voltage of electron tube pulse becomes possibility, therefore can approve than the low voltage of magnitude of voltage that the stack of voltage and scanning voltage obtains is set.In other words, reseting period determines, regulates the inclination of electron tube pulse in during this, and under the situation that this inclination is sharply risen, the electron tube pulse is gone up on can be in official hour voltage is set; But under the situation that rake ratio more slowly rises, originally can rise to electron tube pulse that voltage is set because the end of reseting period and can't rise to voltage is set.This just makes than scanning voltage height, and the electron tube pulse with the magnitude of voltage that is equivalent to resetting voltage and scanning voltage addition is employed as and is possible.
Fig. 6 is the drive waveforms synoptic diagram according to the selectivity cancellation PDP of principle of the invention work
As shown in Figure 6, the 1st subdomain that is included in the frame of selectivity cancellation of the present invention is divided into reseting period, and address period drives during keeping.
In reseting period (RPD), all discharge cell generation reset discharges are opened discharge cell; In address period (APD), all discharge cells that are unlocked in reseting period (RPD) are closed selectively; During keeping, in (SPD), there is not selecteed discharge cell to keep discharge in the address period.
Reseting period (RPD) can be divided into to scan electrode (Y) and the electron tube pulse of keeping electrode (Z) and provide the electron tube pulse supply with during (RPD1) and the pulse signal supply of pulse signal is provided during (RPD2).
During the electron tube pulse is supplied with, be supplied to scan electrode (Y) than resetting voltage and superimposed higher positive polarity (+) the electron tube pulse (RPy) of voltage of keeping that forms of scanning voltage, negative polarity (-) electron tube pulse (RPz) is supplied to keeps electrode (Z).This will and keep the voltage difference between electrode (Z) and reset discharge takes place because of scan electrode (Y).Meanwhile, faint subtend discharge takes place also between scan electrode (Y) and addressing electrode (X), go up the wall voltage that forms positive polarity (+) at addressing electrode (X).As it is described in detail, promptly be supplied to scan electrode (Y) than resetting voltage and superimposed higher positive polarity (+) the electron tube pulse (RPy) of voltage of keeping that forms of scanning voltage, negative polarity (-) electron tube pulse (RPz) is supplied to keeps electrode (Z).At this moment, the potential difference (PD) between scan electrode (Y) and addressing electrode (X) is set than the potential difference (PD) height of keeping between electrode (Z) and addressing electrode (X).Thereby, during the electron tube pulse is supplied with in, faint subtend takes place between scan electrode (Y) and addressing electrode (X) discharge.This subtend discharge makes addressing electrode (X) go up the wall electric charge that forms positively charged.Because this reset discharge and help address discharge in the address period at the wall electric charge that addressing electrode (X) go up to form positively charged, be that reset discharge faintly accumulates the wall electric charge on the addressing electrode (X), the battery that address period is selected by the discharge of the subtend between scan electrode (Y) and addressing electrode (X) can not closed yet.In other words, should not allow selected battery discharge in the address period, even if otherwise chosen also because the deficiency of wall electric charge, and address discharge is not taken place, this chosen battery does not have chosen.This battery is defined as discharge battery and keeps discharge normally, and non stationary discharge will take place.Thereby, do not need to improve resetting voltage with other power supply, only need the higher resetting voltage of supply in reseting period, the wall electric charge that accumulation is sufficient to guarantee operating space, makes and carries out more stable address discharge and become possibility.This was relatively recently seen together in the past, previously used resetting voltage constitutes in order not use other power supply, and the use power supply identical with keeping voltage, therefore, even if need obtain at panel under the situation of higher resetting voltage, resetting voltage also can not be lifted to just be difficult to guarantee fully operating space than keeping the higher degree of voltage.
In (RPD2), the 2nd stable pulse (Rz) is supplied to keeps electrode (Z) during pulse signal is supplied with, and alternately the 1st stable pulse (Ry) is supplied to and keeps voltage with it.At this moment, the magnitude of voltage in the 1st stable pulse (Ry) and the 2nd stable pulse (Rz) is with to keep voltage identical.Thereby scan electrode (Y) and keep the voltage official post scan electrode (Y) between electrode (Z) and keep between electrode (Z) stable discharging takes place forms duplicate wall electric charge (being that discharge cell is opened) on all discharge cells.
In the address period, the scanning impulse that drops to scanning voltage successively is supplied to sweep trace, is supplied addressing electrode (X) with the data pulse of the synchronous positive polarity (+) of the scanning impulse of negative polarity (-).Here, because formed positive polarity (+) wall electric charge on the addressing electrode (X) in the reseting period, when the data pulse of positive polarity (+) is supplied to addressing electrode (X), stable address discharge has just taken place, obtain this moment in the discharge cell of data pulse address discharge having taken place, promptly eliminate discharge, discharge cell is closed.
Keeping pulse in during keeping is given scan electrode (Y) and keeps electrode (Z) by alternate supplies, if keeping pulse is supplied to scan electrode (Y) and keeps electrode (Z), in address period, there is not chosen discharge cell to keep discharge, at this moment, the number that returns of discharge, performance and the corresponding gray-scale value of gray scale weight are kept in adjusting.
Another aspect, other subdomain of removing first subdomain (SF1) does not comprise reseting period (RPD).In other words, during other subdomain repetitive addressing (APD) and keep during (SPD), the gray scales that performance changes because of gray-scale value is different.This is elaborated, that is: in first subdomain (SF1) in order to drive PDP with the selectivity cancellation, at reseting period (RPD), all discharge cells are unlocked, thereafter in other subdomain except that first subdomain (SF1), the discharge cell that the reseting period (RPD) of first subdomain (SF1) is unlocked is closed selectively, simultaneously the representing gradation value.
In other words, former PDP provides resetting voltage at the voltage source that the use of reseting period is provided with voltage.This set voltage because and keep voltage and use identical voltage, so can not use the voltage of keeping more than the voltage.In addition, control than keeping higher voltage is set will install separately voltage source is set of voltage in order to obtain.Will expense be risen because of adding the loop in addition in this case.Do not have this loop of adding separately and directly use before the driving loop, just can not sufficiently high resetting voltage, so be difficult to guarantee operating space.The present invention can utilize original loop of not adding the loop separately, and obtaining does not promptly need the other power supply that is provided with than keeping the higher voltage of voltage, and only is used as resetting voltage keeping the voltage that voltage and scanning voltage be formed by stacking.Resetting voltage after this enhancing can make the subtend discharge takes place between scan electrode (Y) and addressing electrode (X) better, makes the enough wall electric charges of addressing electrode (X) accumulation.Thereby, do not do loop change and only improve control method resetting voltage is raise slightly, to guarantee operating space.
Claims (2)
1. the drive unit of selectivity cancellation plasma display comprises:
During keeping to scan electrode and keep the maintainer that pulse is kept in the electrode alternative supply;
Reseting period provides the supply unit that is provided with above-mentioned electron tube pulse of keeping the pulse voltage value;
Address period provides to above-mentioned scan electrode and is used for selecting discharge cell, has the scanning voltage supply unit of keeping the electron tube pulse of the lower scanning voltage value of voltage than above-mentioned;
Reseting period interscan voltage is provided for behind the capacitor that is arranged on above-mentioned scanning voltage supply unit and keeps voltage and converge, and resupplies panel.
2. the drive unit of selectivity cancellation plasma display as claimed in claim 1 is characterized in that,
The scan voltage source of above-mentioned scanning voltage with provide the voltage source of keeping of keeping voltage can be compatible.
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| CNB2004100542567A CN100377186C (en) | 2004-09-03 | 2004-09-03 | Plasma display driving method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030189534A1 (en) * | 2002-04-04 | 2003-10-09 | Lg Electronics Inc. | Method for driving plasma display panel |
| US20040027316A1 (en) * | 2002-08-06 | 2004-02-12 | Lg Electronics Inc. | Method and apparatus for driving plasma display panel |
| CN1549235A (en) * | 2003-05-19 | 2004-11-24 | 乐金电子（沈阳）有限公司 | Plasma display screen drive method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030189534A1 (en) * | 2002-04-04 | 2003-10-09 | Lg Electronics Inc. | Method for driving plasma display panel |
| US20040027316A1 (en) * | 2002-08-06 | 2004-02-12 | Lg Electronics Inc. | Method and apparatus for driving plasma display panel |
| CN1549235A (en) * | 2003-05-19 | 2004-11-24 | 乐金电子（沈阳）有限公司 | Plasma display screen drive method |
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