CN1319103C - Method and device for measuring charge of AC plasma displaying screen-wall - Google Patents
Method and device for measuring charge of AC plasma displaying screen-wall Download PDFInfo
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- CN1319103C CN1319103C CNB2003101059216A CN200310105921A CN1319103C CN 1319103 C CN1319103 C CN 1319103C CN B2003101059216 A CNB2003101059216 A CN B2003101059216A CN 200310105921 A CN200310105921 A CN 200310105921A CN 1319103 C CN1319103 C CN 1319103C
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Abstract
The present invention discloses a method for measuring wall charges of an AC plasma display panel, and a device for realizing the method. The method adopts two groups of electrodes of the plasma display panel to form a measuring electrode group and a reference electrode group which are in the completely same geometric structure, the measuring electrode group and the reference electrode group are respectively connected in series with completely identical capacitors to form a balanced measuring circuit and a reference circuit, the measuring circuit and the reference circuit are simultaneously exerted by the same driving voltage waveform, a discharge unit comprised by the measuring electrode group can normally carry out discharge, but a discharge unit comprised by the reference electrode group can not carry out discharge, and the voltage difference of the two series capacitors are measured to obtain wall charge waveforms in the discharge unit corresponding to the measuring electrode group. The method eliminates the influence of displacement current, and can accurately measure the wall charges of the AC plasma display panel in real time. The device for realizing the method has simple structure, convenient operation and low cost.
Description
Technical field
The present invention relates to a kind of AC plasma display screen (hereinafter to be referred as AC-PDP) field, relate in particular to a kind of method and apparatus of wall electric charge of real-time measurement AC plasma display screen.
Background technology
General plasma display panel (PDP) all adopts AC type surface discharge structure at present.The AC-PDP operate as normal depends on the suitable wall electric charge of driving voltage waveform generation and keeps.The present method that exists some to measure the wall electric charges, the principle of employing all are to be the discharge cell equivalence of AC-PDP the series connection of two dielectric capacitance and a gas discharge space electric capacity basically, and after gas was breakdown, the gas capacitor equivalent was short circuit.Electric capacity of series connection on some electrodes of AC-PDP, measure on the series capacitance voltage and by calculating the size of wall electric charge.L.F.Weber is at " Measurement of Wall Charge and CapacitanceVariation for a Single Cell in AC Plasma Display Panel " (IEEE Trans.ElectronDevice Vol.ED 24, No.7, pp.864-869.) discharge cell that a kind of combination of adopting electric capacity and resistance comes Equivalent A C-PDP has been proposed in the literary composition, the discharge cell of equivalence and the discharge cell of actual AC-PDP carry out balance, eliminate the influence of displacement current, obtain the value of wall electric charge, but AC-PDP discharge cell equivalent capacity and resistance change in the process of discharge, so dynamic equilibrium is difficult to realize.PCT patent WO01/99139 discloses a kind of directly series capacitance on the electrode of AC-PDP, is the effect equivalence of wall electric charge a voltage source, and the equivalent parameters by the voltage waveform calculating display unit on the sampling series capacitance calculates the wall electric charge then.
According to the characteristics more than the prior art, there is following shortcoming in existing as can be known AC-PDP wall charge measurement Method and circuits:
1) existing wall charge measurement method is indirect, needs to calculate through after a series of measurement;
2) measurement of existing wall charge measurement method is non-real-time;
3) existing wall charge measurement method is static, not the dynamic evolution process of energy measurement wall electric charge.
Summary of the invention
One object of the present invention is to provide a kind of AC plasma display screen wall charge measurement method of measuring wall electric charge dynamic evolution process directly, in real time;
Another object of the present invention is to propose a kind of device of realizing said method.
The AC-PDP wall charge measurement method that the present invention proposes is to utilize the circuit of two balances of the identical two arrays of electrodes structure of geometry, eliminates the influence of displacement current, obtains the waveform of wall electric charge.The step of its measurement is as follows:
At first, construct two balancing circuitrys, comprise measuring circuit and reference circuit, wherein, the geometry of the geometry of the measurement electrode group of measuring circuit and the reference electrode group of reference circuit is identical, but the discharge cell firing voltage of the AC plasma display screen that the reference electrode group is comprised is higher than measured driving voltage maximum, and the electric capacity of connecting identical respectively in measurement electrode group and reference electrode group constitutes balancing circuitry simultaneously, promptly constitutes measuring circuit and reference circuit;
Secondly, on measuring circuit and reference circuit, apply identical drive waveforms, in the measurement electrode group, produce displacement current and discharging current, only produce in the reference electrode group with the identical displacement current of measurement electrode group, the electric capacity of measurement electrode group series connection carries out integration to displacement current and discharging current simultaneously, and the electric capacity of reference electrode group series connection is only to the displacement current integration, measure two voltage differences on the electric capacity at last, this voltage difference has reflected the integrated value of discharging current in the measurement electrode group, and the product of the appearance value of this voltage difference and series capacitance promptly is the size of wall electric charge.
Described geometry is meant the shape and the arrangement mode of each electrode in the AC plasma display screen, the shape of barrier and the size of discharge space, the thickness of insulating barrier, and the distance of AC plasma display screen front-back baseboard.
The balancing circuitry of structure is; reference electrode group and measurement electrode group are arranged on the same AC plasma display screen or are separately positioned on two AC plasma display screen, the insulation aspect of the prebasal plate of the part at reference electrode group place or whole AC plasma display screen are not carried out the making of MgO protective layer.
The balancing circuitry of structure is that described reference electrode group and measurement electrode group are arranged on respectively on two AC plasma display screen, only the AC plasma display screen at reference electrode group place are charged into the gas of difficult discharge.
When measurement electrode group and reference electrode group were made of two groups of show electrodes, measurement result was the wall electric charge corresponding with show electrode; When measurement electrode group and reference electrode group were made of two group addressing electrodes, measurement result was the wall electric charge corresponding with addressing electrode.
Realize the device of the method for measurement of AC plasma display screen wall electric charge, circuit measuring circuit and reference circuit, waveform generator and oscilloscope are formed, its improvements are: measuring circuit is made of measurement electrode group and capacitor C 1 series connection, reference circuit is made of reference electrode group and capacitor C 2 series connection, measuring circuit is connected respectively on two waveform generators after with the reference circuit parallel connection, and the addressing electrode of measuring circuit and reference circuit is connected to another waveform generator.
The invention provides a kind of device of method and this method of realization of the AC-PDP of being used for wall charge measurement, utilize the method for the circuit of two balances of the identical two arrays of electrodes structure of geometry, eliminate the influence of displacement current, can exactly, in real time, dynamically, directly measure the wall electric charge waveform of AC-PDP discharge cell under various drive waveforms.The apparatus structure of realizing this method is simple, and is easy to operate, and cost is low.
Description of drawings
Fig. 1 (a) is typical three-electrode surface discharge type AC-PDP distribution of electrodes figure;
Fig. 1 (b) is typical three-electrode surface discharge type AC-PDP discharge cell structure chart;
Fig. 2 is a structure principle chart of the present invention;
Fig. 3 adopts same AC-PDP structure reference circuit that scan electrode is carried out measuring principle figure, is one of patent working example of the present invention;
Fig. 4 adopts same AC-PDP structure reference circuit that addressing electrode is carried out measuring principle figure, is two of patent working example of the present invention;
Fig. 5 is three of a patent working example of the present invention, and reference circuit and measuring circuit are separately positioned on two AC-PDP and go up the structure chart of measuring show electrode wall electric charge;
Fig. 6 is four of a patent working example of the present invention, and reference circuit and measuring circuit are separately positioned on two AC-PDP and go up the structure chart of measuring addressing electrode wall electric charge;
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.But be not limited to these embodiment.
Shown in Fig. 1 (a) and (b), the structure chart of modal three-electrode surface discharge type AC-PDP, AC-PDP have comprised two glass substrates staggered relatively 01,06.The show electrode of pair of parallel; comprise scan electrode group 031 and keep electrode group 032; be positioned on the AC-PDP front panel 01; show electrode is made of the transparency electrode 030 of broad and thinner bus electrode 034; be coated with the insulating barrier 02 of layer of transparent then, be coated with layer protecting film on the insulating barrier 02.Addressing electrode 07 is positioned on the metacoxal plate 06 perpendicular to show electrode, is coated with a layer insulating 010 on the addressing electrode 07, has done barrier 05 on the insulating barrier 010, scribbles three-color phosphor sequentially in the space of barrier 05 and insulating barrier 010 formation.
Typical A C-PDP front panel 01 uses glass substrate, and glass substrate obtains the substrate of high strain-point through cleaning and high annealing.The method of making transparency electrode typical case 030 is to adopt ITO or SnO
2Membrane electrode is an example with ITO, and manufacture method is that film is made in sputter or ion plating, and using photoetching process to make then becomes corresponding pattern.Typical bus electrode 034 adopts silver (Ag) electrode or chromium-copper chromium (Cr/Cu/Cr), and the typical manufacture method of silver electrode is that printing and photoetching, the typical manufacture method of chromium-copper chromium are sputter and photoetching.Be coated with transparent insulating barrier 02 on the electrode, can adopt methods such as silk screen printing to make.MgO is the most frequently used protective layer material, and the most frequently used manufacture method is the method for electron beam deposition, and the method for latest developments has methods such as ion plating, reactive sputtering.Applying the upper glass sealing layer then around display area is used for front and back panel is sintered to one.The manufacturing process that AC-PDP metacoxal plate 06 is used always is as follows: at first through cleaning and high annealing, make addressing electrode 07 then, manufacture method is with the manufacture method of AC-PDP prebasal plate 01 bus electrode 034 above-mentioned.Be coated with insulating barrier 010 on the electrode, its manufacture craft is with AC-PDP prebasal plate 01 insulating barrier 02, but it is a White-opalescent.Processes such as the making of barrier 05 can be adopted silk screen printing, sandblasts, photoetching, filling.The technology that fluorescent material is commonly used has the method for printing, coating, photoetching or electrophoretic deposition.At last the AC-PDP front-back baseboard is encapsulated into together through aligning, sintering.The gas in true worker's pump extraction discharge space is adopted in exhaust then, after being evacuated, charges into the gas of certain proportioning.Process through ageing obtains final AC-PDP at last.
Fig. 2 is a schematic diagram of the present invention.Measuring circuit 1 is made of measurement electrode group 11 and capacitor C 1 series connection, reference circuit 2 is made of reference electrode group 21 and capacitor C 2 series connection, measuring circuit 1 is connected respectively on second waveform generator 32 and the 3rd waveform generator 33 after with reference circuit 2 parallel connections, and measuring circuit 1 is connected to first waveform generator 31 with the addressing electrode of reference circuit 2.Measurement electrode group 11 comprises the discharge cell that needs are measured the some of wall electric charge, under conventional driving voltage, these discharge cells can regular picture, reference electrode group 21 is identical with measurement electrode group 11 on geometry, and comprise discharge cell with measurement electrode group 11 similar numbers, discharge under conventional driving voltage but these discharge cells can not catch fire.In discharge process, there are displacement current and discharging current to flow through simultaneously in the measuring circuit 1, capacitor C 1 is carried out integration to the displacement current and the discharging current of measuring circuit simultaneously, and has only displacement current in the reference circuit 2,2 of capacitor C are carried out integration to displacement current, voltage difference on capacitor C 1 and the capacitor C 2 adopts oscilloscope 5 to measure, oscilloscope 5 adopts isolating transformer to power floatingly, the ground of probe terminates on the tie point of the measurement electrode group of measuring circuit 1 and series capacitance, and surveyingpin is connected on the tie point of the measurement electrode group of reference circuit and series capacitance.Eliminated the influence of displacement current, can reflect the wall electric charge waveform of the discharge cell corresponding in real time with measurement electrode group 11.
Below be embodiments of the invention:
Fig. 3 adopts same AC-PDP structure reference circuit to carry out the measurement of scan electrode wall electric charge, is one of embodiments of the invention.The part at AC-PDP measurement electrode group 11 places is made according to conventional manufacturing process, and the part at AC-PDP reference electrode group 21 places is except carrying out the coating of MgO layer, and other technologies are identical with the AC-PDP part at measurement electrode group 11 places.The part at AC-PDP reference electrode group 21 places does not have the MgO layer, and its firing voltage is higher than the AC-PDP part at measurement electrode group 11 places far away.When measuring, first, second, third waveform generator 31,32,33 produces various drive waveforms.If added drive waveforms can not produce discharge on the discharge cell that measurement electrode group 11 is comprised, the discharge cell that reference electrode group 21 is comprised can not produce discharge yet.At this moment, all only displacement current is carried out integration on capacitor C 1 and the C2, the displacement current that flows through measurement electrode group 11 and reference electrode group 21 is on all four, voltage in two capacitor C 1, C2 upper integral is also just just the same, these two series capacitance voltage differences are zero, also do not have the accumulation of wall electric charge at this moment on the measurement electrode group 11.If added drive waveforms produces discharge at the discharge cell that measurement electrode group 11 is comprised, and do not produce discharge at the discharge cell that reference electrode group 21 is comprised, at this moment, the displacement current and the discharging current that flow through on 1 meeting while of the capacitor C integral measurement electrode group 11, capacitor C 2 is only to the integration of the displacement current that flows through reference electrode group 21, and is in full accord when flowing through the displacement current of reference electrode group 21 and measurement electrode group 11.Voltage difference on capacitor C 1 and the C2 is just non-vanishing, the accumulation that this moment, measurement electrode group 11 will produce the wall electric charge.The voltage difference that adopts oscilloscope 5 to measure capacitor C 1 and capacitor C 2 just can obtain the evolution process of wall electric charge.
Fig. 4 adopts same AC-PDP structure reference circuit to measure the schematic diagram of addressing electrode wall electric charge, is two of the embodiment of the invention.The part at AC-PDP measurement electrode group 11 places is made according to the manufacturing process of routine, the part at AC-PDP reference electrode group 21 places is not except carrying out the coating of MgO layer, and other technologies are identical with the manufacture craft of AC-PDP measurement electrode group 11 place parts.The discharge cell firing voltage that the part at AC-PDP reference electrode group 21 places comprises is higher than conventional driving voltage far away, when measuring, reference circuit 2 and measuring circuit 1 added voltage waveform are in full accord, the displacement current that produces is also just in full accord, if the part at AC-PDP measurement electrode group 11 places has discharge and wall electric charge accumulation is arranged and the part at reference electrode group 21 places is not discharged, will carry out integration to displacement current and discharging current on the capacitor C 1, capacitor C 2 is only carried out integration to displacement current, the voltage difference of capacitor C 1 and capacitor C 2 is non-vanishing, measures the waveform that this voltage difference just can obtain addressing electrode upper wall electric charge.
Fig. 5 is that reference circuit and measuring circuit are separately positioned on the structure chart that two AC-PDP go up measurement show electrode wall electric charge, is three of embodiments of the invention.The AC-PDP at measurement electrode group 11 places makes according to the manufacturing process of routine, the AC-PDP at reference electrode group 21 places makes according to the identical manufacture craft of AC-PDP with measurement electrode group 11 places, but charge into the gas that is difficult for discharge, for example nitrogen, helium etc. during inflation.Make the firing voltage of reference electrode group 21 place AC-PDP be higher than conventional driving voltage far away, and the AC-PDP at measurement electrode group 11 places can regular picture under conventional driving voltage.Measurement electrode group 11 and reference electrode group 21 identical two capacitor C 1 and the capacitor C 2 of connecting respectively constitutes measuring circuit 1 and reference circuits 2, is connected to after measuring circuit 1 and reference circuit 2 parallel connections on second, third waveform generator 32,33.The addressing electrode of two display screens at measuring circuit 1 and reference circuit 2 places is connected to same first waveform generator 31, keeps electrode and is connected to same the 3rd waveform generator 33.When carrying out the measurement of wall electric charge, measuring circuit 1 and reference circuit 2 added drive waveforms are just the same, and the displacement current of measuring circuit 1 and reference circuit 2 is also just just the same.When applied voltage waveform makes the AC-PDP at measurement electrode group 11 places discharge, and the AC-PDP at reference electrode group 21 places is not when discharging, displacement current and discharging current that 1 pair of capacitor C flows through measurement electrode group 11 carry out integration, and capacitor C 2 is only carried out integration to the displacement current that flows through reference electrode group 21, at any time, the displacement current that flows through measurement electrode group 11 and reference electrode group 21 all is the same, so the capacitor C 1 of two series connection and the voltage difference on the capacitor C 2 are exactly to be determined by the discharging current that flows through on the measurement electrode group 11 fully, and this discharging current has also caused the accumulation of the AC-PDP discharge cell wall electric charge at measurement electrode group place simultaneously.Adopt oscilloscope 5 to measure this voltage difference, just can measure the AC-PDP scan electrode wall change in charge at measurement electrode group 11 places in real time.
Fig. 6 is that reference circuit and measuring circuit are separately positioned on the structure chart that two AC-PDP go up measurement addressing electrode wall electric charge.The AC-PDP at measurement electrode group 11 places makes according to the manufacturing process of routine, the AC-PDP at reference electrode group 21 places makes according to the manufacturing process with the AC-PDP phase at measurement electrode group 11 places, but charge into the gas that is difficult for discharge, for example nitrogen, helium etc. during inflation.Make the firing voltage of AC-PDP at reference electrode group 21 places be higher than conventional driving voltage far away, and the AC-PDP at measurement electrode group 11 places can regular picture under conventional driving voltage.Measurement electrode group 11 and reference electrode group 21 identical two capacitor C 1 and the capacitor C 2 of connecting respectively constitutes measuring circuit 1 and reference circuits 2, is connected to first waveform generator 31 after measuring circuit 1 and reference circuit 2 parallel connections.The scan electrode of two AC-PDP at measuring circuit 1 and reference circuit 2 places is connected to second waveform generator 32, keeps electrode and is connected to the 3rd waveform generator 33.When carrying out the measurement of wall electric charge, reference circuit 2 and measuring circuit 1 added driving voltage waveform are just the same, and its displacement current is also just just the same.When applied voltage waveform makes the AC-PDP at measurement electrode group 11 places discharge, and the AC-PDP at reference electrode group 21 places is not when discharging, displacement current and discharging current that 1 pair of capacitor C flows through measurement electrode group 11 carry out integration, and 2 of capacitor C are carried out integration to the displacement current that flows through reference electrode group 21, at any time, the displacement current that flows through measurement electrode group 11 and reference electrode group 21 all is the same, so the voltage difference of capacitor C 1 and capacitor C 2 is fully by the discharging current decision of flowing through measurement electrode group 11, and this discharging current has also caused the accumulation of the AC-PDP discharge cell wall electric charge at measurement electrode group 11 places simultaneously.Adopt oscilloscope 5 to measure this voltage difference, just can measure the wall change in charge of the AC-PDP at measurement electrode group 11 places in real time.
In addition, among the figure, 12 expression capacitor C, 1,22 expression capacitor C 2.
In sum, the present invention has following advantage:
1) measurement of wall electric charge is directly, can directly observe the wall electric charge evolution process of plasma display panel (PDP) on oscilloscope;
2) measurement of wall electric charge is real-time;
3) measurement of wall electric charge is dynamic, can measure preparatory stage, address period, the wall electric charge evolution process of keeping phase AC plasma display screen discharge cell.
Claims (8)
1, a kind of method of measurement of AC plasma display screen wall electric charge is characterized in that: utilize the circuit of two balances of the identical two arrays of electrodes structure of geometry, obtain the waveform of wall electric charge, concrete steps are as follows:
At first, construct two balancing circuitrys, comprise the measuring circuit (1) and the reference circuit (2) that are arranged on the AC plasma display screen, wherein, the geometry of the geometry of the measurement electrode group (11) of measuring circuit (1) and the reference electrode group (21) of reference circuit (2) is identical, but the discharge cell firing voltage of the AC plasma display screen that reference electrode group (21) is comprised is higher than measured driving voltage maximum, simultaneously in measurement electrode group (11) and reference electrode group (21) the identical capacitor C 1 (12) of connecting respectively, capacitor C 2 (22) constitutes balancing circuitry;
Secondly, on measuring circuit (1) and reference circuit (2), apply identical drive waveforms, in measurement electrode group (11), produce displacement current and discharging current, only produce in the reference electrode group (21) with the identical displacement current of measurement electrode group (11), the capacitor C 1 (12) of measurement electrode group (11) series connection is carried out integration to displacement current and discharging current simultaneously, and the capacitor C 2 (22) of reference electrode group (21) series connection is only to the displacement current integration, measure two capacitor C 1 (12), voltage difference on the capacitor C 2 (22), this voltage difference and capacitor C 1 (12), the product of the appearance value of capacitor C 2 (22) promptly is the size of wall electric charge.
2, the method for measurement of AC plasma display screen wall electric charge according to claim 1, it is characterized in that: described geometry is meant the shape and the arrangement mode of each electrode in the AC plasma display screen, the shape of barrier and the size of discharge space, the thickness of insulating barrier, and the distance of AC plasma display screen front-back baseboard.
3, the method for measurement of AC plasma display screen wall electric charge according to claim 1; it is characterized in that: the balancing circuitry of structure is; reference electrode group (21) and measurement electrode group (11) are arranged on the same AC plasma display screen or are separately positioned on two AC plasma display screen, the making of insulation aspect (02) the cancellation MgO protective layer of the part at reference electrode group (21) place or the prebasal plate of whole AC plasma display screen.
4, according to the method for measurement of claim 1 or 3 described AC plasma display screen wall electric charges, it is characterized in that: the balancing circuitry of structure is, said reference electrode group (21) and measurement electrode group (11) are separately positioned on two AC plasma display screen, and only the AC plasma display screen to reference electrode group (21) place charges into the gas that is difficult for discharge.
5, the method for measurement of AC plasma display screen wall electric charge according to claim 1 is characterized in that, when measurement electrode group (11) and reference electrode group (21) were made of two groups of show electrodes, measurement result was the wall electric charge corresponding with show electrode; When measurement electrode group (11) and reference electrode group (21) were made of two group addressing electrodes, measurement result was the wall electric charge corresponding with addressing electrode.
6, a kind of device of realizing the method for measurement of the described AC plasma display screen wall electric charge of claim 1, by circuit measuring circuit (1) and reference circuit (2), first waveform generator (31), second waveform generator (32), the 3rd waveform generator (33) and oscilloscope (5) are formed, it is characterized in that: measuring circuit (1) is made of measurement electrode group (11) and capacitor C 1 (12) series connection, reference circuit (2) is made of reference electrode group (21) and capacitor C 2 (22) series connection, be connected respectively to after the same reference circuit of measuring circuit (1) (2) parallel connection on second waveform generator (32) and the 3rd waveform generator (33), the addressing electrode of measuring circuit (1) and reference circuit (2) is connected to first waveform generator (31).
7, the device of realization AC plasma display screen wall charge measurement method according to claim 6 is characterized in that: described capacitor C 1 (12), capacitor C 2 (22) adopt identical electric capacity.
8, the device of realization AC plasma display screen wall charge measurement method according to claim 6, it is characterized in that: the voltage difference on capacitor C 1 (12) and the capacitor C 2 (22) adopts oscilloscope (5) to measure, oscilloscope (5) adopts isolating transformer to power floatingly, the ground of the probe of oscilloscope (5) terminates on the tie point of the measurement electrode group (11) of measuring circuit (1) and capacitor C 1 (12), and the surveyingpin of the probe of oscilloscope (5) is connected on the tie point of the reference electrode group (21) of reference circuit (2) and capacitor C 2 (22).
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| CNB2003101059216A CN1319103C (en) | 2003-11-13 | 2003-11-13 | Method and device for measuring charge of AC plasma displaying screen-wall |
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| CNB2003101059216A CN1319103C (en) | 2003-11-13 | 2003-11-13 | Method and device for measuring charge of AC plasma displaying screen-wall |
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| CN1319103C true CN1319103C (en) | 2007-05-30 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001099139A1 (en) * | 2000-06-23 | 2001-12-27 | Orion Electric Co., Ltd. | Method for measuring wall charge and wall voltage on plasma display panel |
| KR20020000932A (en) * | 2000-06-22 | 2002-01-09 | 김영남 | Circuit and method for wall charge measuring in AC type plasma display panel |
| CN1397923A (en) * | 2002-07-29 | 2003-02-19 | 西安交通大学 | Drive method for two-point triggered discharge type AC plasma display screen |
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2003
- 2003-11-13 CN CNB2003101059216A patent/CN1319103C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020000932A (en) * | 2000-06-22 | 2002-01-09 | 김영남 | Circuit and method for wall charge measuring in AC type plasma display panel |
| WO2001099139A1 (en) * | 2000-06-23 | 2001-12-27 | Orion Electric Co., Ltd. | Method for measuring wall charge and wall voltage on plasma display panel |
| CN1397923A (en) * | 2002-07-29 | 2003-02-19 | 西安交通大学 | Drive method for two-point triggered discharge type AC plasma display screen |
Non-Patent Citations (1)
| Title |
|---|
| Measurement of wall charge and capacitance variation for a single cell in AC plasma display panel LARRY F. WEBER,IEEE TRANSACTIONS ON ELECTRON DEVICES,Vol.24 No.7 1977 * |
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