CN1124583C - Memory driving method for plasma display board - Google Patents
Memory driving method for plasma display board Download PDFInfo
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- CN1124583C CN1124583C CN 00112426 CN00112426A CN1124583C CN 1124583 C CN1124583 C CN 1124583C CN 00112426 CN00112426 CN 00112426 CN 00112426 A CN00112426 A CN 00112426A CN 1124583 C CN1124583 C CN 1124583C
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Abstract
The present invention relates to a storage driving method for a plasma display board, particularly to a driving method for a plasma display board which adopts middle discharge. A dielectric layer between a scanning electrode and a data electrode has no wall electric charge or the wall electric charges are erased by an erasing pulse, an ignition pulse is add between the scanning electrode and the data electrode to cause a discharge unit to discharge, the discharge causes the wall electric charges to be accumulated on the dielectric layer, and a voltage holding signal is added to the discharge unit to hole the discharge. When a picture ends, the erasing pulse is added to the scanning electrode to erase the wall electric charges, the holding signal can not hold the discharge, and the discharge stops.
Description
One, technical field
The present invention is a kind of memory driving method of article on plasma body display board, especially a kind of method to the storing driver of the plasma display panel of discharge in the middle of adopting.
Two, background technology
At present, it comprises that a front glass underlay substrate that effectively shows workplace as this display device is provided with many first electrodes (data electrode) that are parallel to each other with a parallel relative back glass substrate substrate with the front glass underlay substrate and covers dielectric layer above it on the back substrate glass substrate up-to-date a kind of plasma display panel (CN99114358.2), preceding substrate glass substrate have many parallel to each other and with second electrode (scan electrode) of the above-mentioned first electrode space orthogonal configuration with cover dielectric layer above it, around the glass substrate substrate of front and back, become airtight device, and fill with noble gas mixtures therein with the glass powder with low melting point sealing-in.Clipping these mesh of metal gate web plate that comprise many mesh between the glass substrate substrate of front and back arranges according to certain rules and has an axisymmetric geometric configuration, the geometrical axis of these mesh is all vertical also by the axis to second electrode on first electrode and the front glass underlay substrate on the glass substrate substrate of back, the corresponding metal mesh opening of the cross section of scan electrode, data electrode scribbles fluorescent powder at the inwall of mesh.Wherein isolate with dielectric material between the metal of the metal grid mesh part and first electrode, second electrode.The cross section of scan electrode, data electrode and its corresponding metal mesh opening, fluorescent powder, dielectric layer constitute luminescence display unit.Under the effect of certain voltage signal, luminescence unit gas discharge, the ultraviolet excitation light-emitting phosphor of discharge generation.The structure of this novel plasma display device is different from existing memory-type surface-discharged plasma display structure.Adopt the plasma display panel of this kind structure to have higher pixel resolution and luminosity than the storage of routine or the plasma display panel of surface discharge type, higher visible transparency, lower operating voltage, lower cost and simple manufacturing process more have vast potential for future development.
Therefore, the above-mentioned novel plasma display panel and the structure of the memory-type surface discharging plasma displaying panel of routine are diverse, because this novel plasma display panel direct-current discharge of difference of structure will take place between data electrode and metal grid mesh, the wall electric charge is accumulated on the dielectric layer of prebasal plate, and keeps discharge by keeping voltage.Therefore employed type of drive also will be different when novel plasma display panel is driven.These differences show that not only the electrode that signal that driving circuit produces applies is complete difference, and to apply the time dependent sequential of signal also be different.Therefore, the driving method of at present general plasma display panel and the driving that circuit can't be applied to above-mentioned novel plasma display board.
Three, technology contents
1, technical matters purpose of the present invention just provides a kind of memory driving method that can realize the plasma display panel of high resolving power, high visible light transmissivity, high luminosity, high-contrast and low-work voltage.
2, the memory driving method of a kind of plasma display panel of technical scheme this method, this method comprises the 1st and the 2nd substrate is set, and configuration has the Intermediate substrate electrode of metal grid mesh betwixt, a plurality of scan electrodes and data electrode, above-mentioned scan electrode and above-mentioned data electrode are met at right angles, isolate by dielectric layer between wire netting and above-mentioned scan electrode and the data electrode, the mesh of the local corresponding above-mentioned metal grid mesh electrode of substrate that intersects at above-mentioned scan electrode and above-mentioned data electrode, the mesh inwall scribbles fluorescent powder, the scan electrode that mesh on the metal grid mesh substrate is corresponding with it and data electrode constitute discharge cell, and each unit adds that voltage signal makes cell discharge or do not discharge.When it is characterized in that on the dielectric layer between scan electrode and data electrode no wall electric charge, between scan electrode and data electrode, add the igniting pulse and make the discharge cell discharge, discharge makes on the dielectric layer accumulation wall electric charge, adds to keep voltage signal discharge is kept on discharge cell; When a picture finishes, on scan electrode, add erasing pulse so that the wall electric charge is eliminated, under the situation that does not have the wall electric charge, to keep signal discharge is kept, discharge stops; For storing the discharge drive pattern, the control of its gray scale and light and shade is that a frame picture segmentation is become a plurality of sons field, and each son field is the discharge time of picture or keep umber of pulse as after different, is realized the control of gray scale by the combination of different sons field.Adding the ignition signal that can make cell discharge on the data electrode He on the scan electrode, also accumulation wall electric charge on the dielectric layer on scan electrode surface takes place in discharge, makes discharge keep discharge by the added pulse signal of keeping, and keeps pulse and stops discharge and stop; When the next son field begins, on scan electrode, add erasing pulse to eliminate the wall electric charge, make only discharge again under the effect of firing pulse of discharge.
Keep pulse signal and can be added between scan electrode and the metal grid mesh, also can be added between scan electrode and the data electrode, but be not added between data electrode and the metal grid mesh.Discharge cell is added when keeping voltage signal and not lighting a fire in the unit, do not make the unit igniting, keeps discharge after lighting a fire in the unit; When being added with write signal on data electrode and the scan electrode, in the unit, discharge, discharge takes place between scan electrode and data electrode and keeps by keeping voltage signal, when wanting erasure discharge, adds erase signal counteracting wall electric charge on scan electrode discharge is no longer carried out.Gray-scale Control is that a frame picture is divided into a plurality of sons field, each son interior write signal of using is lighted a fire once, come the number of times of gated sweep discharge by controlling the number of keeping discharge pulse in each son field, the certain fixing gray shade scale of number of times representative of discharge in each son field, the gray shade scale in the gray shade scale that single sub-place is represented not, by light display board respectively in several height field, i.e. combination by the son field obtains, and realizes the control of gray scale thus; Gray shade scale in the gray shade scale that single sub-place is represented by lighting display board in the son field that is chosen in corresponding discharge pulse number, realizes the control of gray scale.By the number of times series arrangement from low to high of discharge in the son, the umber of pulse in back is the twice of umber of pulse in the last son, and umber of pulse can be one in the smallest sub-fields, also can be a plurality of.In Plasma Display, because the existence of dielectric layer is arranged on the sparking electrode, during the discharge cell discharge, charged ion will and accumulate on dielectric layer to the respective electrode motion, form the wall electric charge.When the wall electric charge reaches a certain amount of, discharge will be stopped, the wall electric charge keeps on dielectric layer, therefore has storage effect.If apply on the electrode with on the opposite polarity voltage signal of keeping that once discharges, discharge takes place in the current potential that the wall electric charge forms and keep the voltage signal stack again.The application has utilized the storage effect of plasma display panel, so the called after memory driving method.
3, technique effect the invention has the advantages that using this method to drive display screen has the advantage of high resolving power, high visible light transmissivity, high luminosity, high-contrast and low-work voltage, is particularly useful for the plasma display panel of giant-screen.
Four, description of drawings
Fig. 1 is the display screen cross-sectional view that is used for memory driving method of the present invention.Front glass underlay substrate 1, back glass substrate substrate 2, data electrode 3, dielectric layer 4, scan electrode 5, dielectric layer 6, metal gate web plate 7, fluorescent powder 8 are wherein arranged.
Fig. 2 keeps a kind of memory driving method synoptic diagram of pulse signal between scan electrode and metal grid mesh, interim S1, S2, Sn is a scan electrode 1,2 ... the scanning voltage signal of n, Grid is an added voltage signal on the metal grid mesh, and the voltage signal of the data electrode when Data is a certain lighting, Er are erasing pulse, Wr is a write pulse, and Su is for keeping pulse.
Fig. 3 keeps the synoptic diagram that pulse signal is added in a kind of memory driving method between scan electrode and the data electrode.
Fig. 4 is added with on the metal grid mesh to keep pulse signal rather than add behind all provisional capital ends of scan to keep pulse signal storing driver mode synoptic diagram all the time.
Fig. 5 is a kind of memory driving method synoptic diagram that erasing pulse occurs simultaneously.
Five, embodiment
Storage discharge drive pattern is suitable for the driving of large screen plasma body display board, and the driving that is suitable for TV and display is used.Under this kind drive pattern, need three kinds of signals: erase signal point, ignition signal and keep signal.Once select to show delegation.
The storing driver pattern is different from turntable driving and alternating current-direct current drive pattern, do not have erase signal under the scan pattern and keep signal, under the alternating current-direct current drive pattern, be direct-current discharge between data electrode and the metal grid mesh, promptly do not isolated fully between data electrode and the metal grid mesh by medium.And under the storing driver pattern, isolated fully by dielectric layer between data electrode and the metal grid mesh.
Under memory module, when delegation is selected,, then at first uses erase signal and wipe wall electric charge on the dielectric layer if accumulation has the wall electric charge on the dielectric layer.
After data electrode had ignition signal, discharge occurred in the unit of being chosen, and accumulated the wall electric charge on dielectric layer.Owing to there is a wall electric charge, what be added with on the unit keeps the carrying out that pulse signal will guarantee discharge, keeps pulse and can be that each row adds simultaneously after all provisional capitals scannings one time, also can be that each row is gone to each after igniting and added respectively.
After all provisional capitals scanning one time, son finishes, restart the igniting of a sub-field duration before, use the wall charging neutrality that erase signal will be accumulated on the scan electrode surface media and fall relight and maintenance process.
Under this kind drive pattern, when scan electrode and metal grid mesh equipotential, added voltage amplitude should guarantee that between does not discharge between data electrode and the metal grid mesh.
For the storing driver pattern, the control of its gray scale and light and shade is that a frame picture segmentation becomes a plurality of son, each son the discharge time of picture as after different, by the control of the combination realization gray scale of different sons.The group field is during by from low to high the series arrangement of umber of pulse in the son, the umber of pulse that is comprised in first sub can be 1, also can be a plurality of, be generally 1～100, be preferably 2, the umber of pulse in second son is the twice of umber of pulse in first son, by that analogy, umber of pulse is the twice of the umber of pulse in the last height field in son field, back, finishes up to all son fields.The corresponding gray shade scale in each height field, other gray shade scale images outside a single son corresponding gray shade scale show, can display board be lighted by apply data pulse signal respectively in a plurality of sons field, i.e. combination by the son field realizes this gray shade scale.The number of son field can have 1 son field according to the requirement of gray shade scale, also can have a plurality of sub, is generally 1～10 sub, for the demonstration of 256 grades of gray scales, is 8 sub-fields, and the order of son field combination can change.
All timing waveforms in the present embodiment can be realized by using programmable logic device (PLD), as using the CPLD device of altera corp.The low-voltage signal that programmable logic device (PLD) produces is used to control high-tension circuit or the high pressure integrated chip produces the high pressure timing waveform that is used to drive the novel plasma demonstration.
Example 1: Fig. 2 keeps pulse signal to be added in a kind of storing driver mode between scan electrode and metal grid mesh.S1, S2 ..., Sn is a scan electrode 1,2 ..., the scanning voltage signal of n, Grid are added voltage signal on the metal grid mesh, and Data is the voltage signal of the data electrode of a certain row when lighting, and Er is erasing pulse, and Wr is a write pulse, Su is for keeping pulse.The umber of pulse of keeping in the son of the minimum umber of pulse that Fig. 2 adopted is 2 (one keep recurrence interval keep pulse number be two), is the son field of a last son twice for umber of pulse thereafter, and umber of pulse is 4, and the like.1,2 ..., n represents the son field.Keeping pulse among Fig. 2 is added between scan electrode and the metal grid mesh.In this kind storing driver pattern, erase signal is at first eliminated the wall electric charge on the dielectric layer, the acting in conjunction lower unit of voltage signal igniting on scan electrode and data electrode, making discharge is to occur in respective display unit, and on the dielectric layer of prebasal plate accumulation wall electric charge, after all scanning provisional capitals are scanned, the wall electric charge on the dielectric layer on the luminescence unit and be added under the acting in conjunction of keeping pulse signal on scan electrode and the metal grid mesh and keep discharge.When arriving in next height field, the wall electric charge is eliminated in erasing pulse, again to each row igniting once, after all provisional capitals scannings one time, keeps pulse and keeps discharge, and the number of times of discharge is for keeping pulse number (keep recurrence interval keep pulse number be two).After all son fields all use up, begin the demonstration of a new frame image.
Example 2: Fig. 3 keeps pulse signal to be added in a kind of type of drive between scan electrode and the data electrode.S1, S2 ..., Sn is a scan electrode 1,2 ..., the scanning voltage signal of n, Grid are added voltage signal on the metal grid mesh, and Data is the voltage signal of the data electrode of a certain row when lighting, and Er is erasing pulse, and Wr is a write pulse, Su is for keeping pulse.The umber of pulse of keeping in the son of the minimum umber of pulse that Fig. 3 adopted is 2 (one keep recurrence interval keep pulse number be two), is the son field of a last son twice for umber of pulse thereafter, and umber of pulse is 4, and the like.1,2 ..., n represents the son field.Keeping pulse among Fig. 3 is added between scan electrode and the data electrode.In this kind storing driver pattern, erase signal is at first eliminated the wall electric charge on the dielectric layer, the acting in conjunction lower unit of voltage signal igniting on scan electrode and data electrode, making discharge is to occur in respective display unit, and on the dielectric layer of prebasal plate and metacoxal plate accumulation wall electric charge, after all scanning provisional capitals are scanned, the wall electric charge on the dielectric layer on the luminescence unit and be added under the acting in conjunction of keeping pulse signal on scan electrode and the data electrode and keep discharge.When arriving in next height field, the wall electric charge is eliminated in erasing pulse, again to each row igniting once, after all provisional capitals scannings one time, keeps pulse and keeps discharge, and the number of times of discharge is for keeping pulse number (keep recurrence interval keep pulse number be two).After all son fields all use up, begin the demonstration of a new frame image.
Example 3: Fig. 4 is and Fig. 2,3 different another storing driver mode that its difference is to be added with all the time on the metal grid mesh to keep pulse signal rather than add behind all provisional capital ends of scan to keep pulse signal.S1 among Fig. 4, S2 ..., Sn is a scan electrode 1,2 ..., the scanning voltage signal of n, Grid are the added pulse signal of keeping on the metal grid mesh, Data is the voltage signal of the data electrode of a certain row when lighting, and Er is erasing pulse, and Wr is a write pulse, and Su is for keeping pulse.The umber of pulse of keeping in the son field of the minimum umber of pulse that Fig. 4 adopted is 2, is the son field of a last son twice for umber of pulse secondly, and umber of pulse is 4, and the like.1,2 ..., n represents the son field.Keeping pulse among Fig. 4 is added between scan electrode and the metal grid mesh.In this kind storing driver pattern, erase signal is at first eliminated the wall electric charge on the dielectric layer, on scan electrode and data electrode, write the acting in conjunction lower unit igniting of voltage signal, make discharge occur in respective display unit, and the wall electric charge that on front substrate medium layer, accumulates, the discharge of keeping on pulse signal and the metal grid mesh of keeping the luminous unit of pulse enable signal after the write signal on the scan electrode is kept, and carry out keeping in this child field the discharge of pulse number (keep recurrence interval keep pulse number be two), keep that the discharge of this luminescence unit stops after the pulse.The time ratio lastrow of wiping and keep the pulse arrival of next line postpones a time of keeping the recurrence interval.After all son fields all use up, begin the demonstration of a new frame image.
Example 4: Fig. 5 is a kind of storing driver pattern that erasing pulse occurs simultaneously, in this driving method, erasing pulse appears at each row simultaneously when the beginning of son field, the wall electric charge of each unit is eliminated, and keeps in igniting and the discharge of each row being carried out similar embodiment 2 then.Equally, erasing pulse can appear at simultaneously and keep after the pulse.When voltage signal is not lighted a fire in the unit, do not make the unit igniting, after lighting a fire in the unit, keep discharge.When being added with write signal on data electrode and the scan electrode, in the unit, to discharge, discharge takes place between scan electrode and data electrode and keeps by keeping voltage signal.When wanting erasure discharge, on scan electrode, add erase signal counteracting wall electric charge discharge is no longer carried out.
Claims (4)
1, a kind of memory driving method of plasma display panel, this method comprises the 1st and the 2nd substrate is set, and configuration has the Intermediate substrate electrode of metal grid mesh betwixt, a plurality of scan electrodes and data electrode, above-mentioned scan electrode and above-mentioned data electrode are met at right angles, metal grid mesh and scan electrode, isolate by dielectric layer between the data electrode, the mesh of the local corresponding above-mentioned metal grid mesh electrode of substrate that intersects at scan electrode and above-mentioned data electrode, the mesh inwall scribbles fluorescent powder, scan electrode that mesh on the metal grid mesh substrate is corresponding with it and data electrode constitute discharge cell, each unit adds that voltage signal makes cell discharge or do not discharge, when it is characterized in that on the dielectric layer between scan electrode and data electrode no wall electric charge, between scan electrode and data electrode, add the igniting signal and make the discharge cell discharge, discharge makes on the dielectric layer accumulation wall electric charge, adds to keep voltage signal discharge is kept on discharge cell; When a picture finishes, on scan electrode, add erasing pulse so that the wall electric charge is eliminated, under the situation that does not have the wall electric charge, to keep signal discharge is kept, discharge stops; For storing the discharge drive pattern, the control of its gray scale and light and shade is that a frame picture segmentation is become a plurality of sons field, and each son field is the discharge time of picture or keep umber of pulse as after different, is realized the control of gray scale by the combination of different sons field.
2, the memory driving method of plasma display panel according to claim 1, it is characterized in that keeping pulse signal is added between scan electrode and the metal grid mesh, perhaps be added between scan electrode and the data electrode, but be not added between data electrode and the metal grid mesh.
3, the memory driving method of plasma display panel according to claim 1, it is characterized in that gray-scale Control is that a frame picture is divided into a plurality of sons field, each son interior ignition signal that uses is lighted a fire once, come the number of times of gated sweep discharge by controlling the number of keeping discharge pulse in each son field, the certain fixing gray shade scale of number of times representative of discharge in each son field, the gray shade scale in the gray shade scale that single sub-place is represented not, by in several height field, lighting display board respectively, i.e. combination by the son field obtains, and realizes the control of gray scale thus; Gray shade scale in the gray shade scale that single sub-place is represented by lighting display board in the son field that is chosen in corresponding discharge time, realizes the control of gray scale.
4, the memory driving method of plasma display panel according to claim 3, it is characterized in that number of times series arrangement from low to high by discharge in the son field, umber of pulse in the one son field, back is the twice of umber of pulse in the last son field, and umber of pulse is one in the smallest sub-fields, or a plurality of.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00112426 CN1124583C (en) | 2000-07-28 | 2000-07-28 | Memory driving method for plasma display board |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 00112426 CN1124583C (en) | 2000-07-28 | 2000-07-28 | Memory driving method for plasma display board |
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| CN1277423A CN1277423A (en) | 2000-12-20 |
| CN1124583C true CN1124583C (en) | 2003-10-15 |
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| CN 00112426 Expired - Fee Related CN1124583C (en) | 2000-07-28 | 2000-07-28 | Memory driving method for plasma display board |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319037C (en) * | 2001-05-30 | 2007-05-30 | 松下电器产业株式会社 | Plamsa display panel display device and its driving method |
| JP4507470B2 (en) * | 2001-07-13 | 2010-07-21 | 株式会社日立製作所 | Plasma display panel display device |
| CN100362544C (en) * | 2005-10-14 | 2008-01-16 | 四川世纪双虹显示器件有限公司 | Driving method for color plasma display screen for saving frame storage content |
| CN105067932A (en) * | 2015-08-27 | 2015-11-18 | 郑州华力信息技术有限公司 | Intelligent electric power instrument |
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