CN1173317C - Panel structure of plasma display and its driven method - Google Patents
Panel structure of plasma display and its driven method Download PDFInfo
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- CN1173317C CN1173317C CNB001287869A CN00128786A CN1173317C CN 1173317 C CN1173317 C CN 1173317C CN B001287869 A CNB001287869 A CN B001287869A CN 00128786 A CN00128786 A CN 00128786A CN 1173317 C CN1173317 C CN 1173317C
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Abstract
The present invention relates to a plasma display panel structure which has the high aperture opening ratio. A fluorescent layer in the plasma display panel structure is orthogonal to an address electrode, and an interval wall is also orthogonal to the address electrode. The present invention can solve the influence of cross-over interference in a mode that a transparent electrode is cut off. Further more, the number of the address electrodes can be increased, which leads a driving method to be simplified; therefore, the cost of a driving circuit can be reduced. The present invention can obtain the purposes that the aperture opening ratio is improved, and the brightness of a plasma display is improved.
Description
Technical field
The present invention relates to a kind of panel structure of plasma display, particularly about a kind of chromatic alternating-current type plasma scope (AC Plasma Display Panel, ACPDP) panel structure of plasma display of the high aperture in of being used in.
Background technology
AC plasma volumetric display (ACPDP) has following advantage: large scale, wide visual angle, high-res and the ability with the full-color image of demonstration.Because today, the demand for the high image quality image promoted day by day, be to research and develop one of emphasis of plasma scope today to promote image quality so improve the brightness of plasma scope.
With reference to Fig. 1, it illustrates is the skeleton view of traditional AC type plasma display panel structure.Front glass substrate 102 have many to long strip type keep electrode (sustain electrode) X and Y, it is the paired configuration of alternative expression, and parallel to each other.And Fig. 1 keeps electrode X and Y is that example is done explanation with a pair of.Each is kept electrode X and includes a transparency electrode 104 and an auxiliary electrode (buselectrode) 106, and each is kept electrode Y and then comprises a transparency electrode 108 and an auxiliary electrode 110. Auxiliary electrode 106 and 110 is an electric conductivity of keeping electrode X and Y in order to increase.Wherein, transparency electrode 104 and 108 can by transparent indium tin oxide (Indium Tin Oxide, ITO) made, and auxiliary electrode 106 and 110 can be made by opaque crome metal/copper/chromium (Cr/Cu/Cr).
In addition, keep electrode X and Y and covered by dielectric layer 112, dielectric layer 112 is then covered by protective seam 114.Address electrode (address electrode) A is formed on the back glass substrate 116 relative with front glass substrate 102, and address electrode A is also covered by fluorescence coating.Address electrode A for example include address electrode A (1), A (2), with A (3), wherein, red fluorescence layer R covers on the address electrode A (1), and green fluorescence layer G covers on the address electrode A (2), and blue fluorescent body B then covers on the address electrode A (3).Address electrode A (1), A (2), be orthogonal to keep electrode X and Y with A (3).Address electrode A (1), A (2), and A (3) define a sub-pixel (sub-pixel) with keeping electrode X and Y respectively, three sub-pixels with fluorescence coating of different colours then define a pixel altogether.
Spaced walls (rib) the 118th, along the both sides of sub-pixel, and be orthogonal to the direction of keeping electrode X and Y be formed on the back glass substrate 116 on.Discharge space 120 is to be defined between protective seam 114 and the fluorescence coating, and discharge space 120 is filled up by discharge gas.
In order to increase resolution and brightness, a kind of technology of ALIS (Altemate Lighting of Surfaces) that is referred to as is in Y.Kanazawa, T.Ueda, S.Kuroki, K.Kariya, T.Hirose was in 1999, and at SID 99 DIGEST, " the High-Resolution Interlaced Addressing forPlasma Display " of 154-157 page or leaf discloses.With reference to Fig. 2～3, wherein, it is the synoptic diagram of keeping electrode X and Y of Fig. 1 conventional AC type plasma scope that Fig. 2 illustrates, and Fig. 3 illustrates the synoptic diagram of keeping electrode X and Y of the plasma scope that is use ALIS technology.
In Fig. 2, in the conventional AC type plasma scope, each is can be with producing luminous (discharge) effect (as the elliptical region of Fig. 2) to the zone of keeping between the electrode (for example being to keep electrode X (1) and Y (1)).And each is to keeping between the electrode, for example is that the zone of keeping electrode Y (1) and X (2) does not then have the luminescent effect generation.So in conventional practice, each must strengthen the interval of keeping between the electrode, produces with the interference between the nearby subpixels that prevents vertical direction.
And in Fig. 3, use all in the plasma scope of ALIS technology to keep electrode X and all equate with interval between Y, and keep the width of electrode X and Y more traditional keep electrode X and Y big.And the auxiliary electrode of keeping among electrode X and the Y (not being shown among Fig. 3) then is to place the centre of keeping electrode X and Y respectively.Other dependency structures of the AC plasma volumetric display of use ALIS technology then as shown in Figure 1.The maximum characteristics of ALIS technology are, not only can be to the zone of keeping between the electrode (for example being to keep electrode X (1) and Y (1)) in order to produce luminescent effect (as the elliptical region among Fig. 3) at each, and, each between, for example be the zone of keeping electrode Y (1) and X (2), also have luminescent effect and produce.So, use the ALIS technology under the condition of keeping electrode of similar number, to make resolution increase to 2 times, and improve brightness.
Though resolution and brightness are to improve by the ALIS technology, the orthogonal structure of its spaced walls and auxiliary electrode makes the aperture opening ratio (open ratio) of plasma scope be restricted.With reference to Fig. 4, it illustrates is the synoptic diagram that uses the relevant position of the spaced walls of plasma scope of ALIS technology and auxiliary electrode.Keep electrode X (1), Y (1), X (2), and the transparency electrode 402,404,406 of Y (2), and 408 with auxiliary electrode 412,414,416, and 418 be and spaced walls 420,422,424, and 416 vertical mutually.Aperture opening ratio is meant in the plasm display panel that not shading area is to the ratio of shading area.As seen from Figure 4, the shading region area in the plasma display is all spaced walls and the totalling of all auxiliary electrodes institute corresponding region area.Lightproof area is big, and then shading region does not reduce thereupon, and aperture opening ratio then also descends thereupon.How under the structure of ALIS technology, reduce not that shading region makes aperture opening ratio improve, reaching the purpose that improves transmittance and brightness is one of emphasis of the present invention.
Summary of the invention
Thus, purpose of the present invention is exactly that a kind of panel structure of plasma display of high aperture is being provided, and the fluorescence coating of plasma display of the present invention is and the address electrode quadrature, and spaced walls also with the address electrode quadrature.The present invention can solve and hand over the influence of disturbing (crosstalk) more by cutting off the mode of transparency electrode.Further, the present invention can make driving method more simplify the cost that reduces driving circuit by increasing the number of address electrode.The present invention can reach the raising aperture opening ratio, so that the brightness of plasma scope improves.
According to purpose of the present invention, a kind of panel structure of plasma display is proposed, comprising: a front glass substrate, a back glass substrate, a plurality of first are kept electrode X and a plurality of second and are kept electrode Y, a plurality of address electrode, a plurality of spaced walls, and a plurality of fluorescence coatings.This back glass substrate is relative with front glass substrate.These first are kept electrode X and second and keep electrode Y and form on front glass substrate alternately.These first are kept electrode X and include one first transparency electrode and one first auxiliary electrode respectively, and these first auxiliary electrodes are separately positioned on pairing these first transparency electrodes.And these second keep electrode Y and include one second transparency electrode and one second auxiliary electrode respectively, and these second auxiliary electrodes are to be separately positioned on pairing these second transparency electrodes.These address electrodes are formed on the glass substrate of back, and these address electrodes to be quadratures first keep electrode X and these second and keep electrode Y at these.These spaced walls be formed on these address electrodes and quadrature at these address electrodes.Form a region of discharge between per two adjacent spaces walls.These a little fluorescence coatings then are to be respectively formed in these region of discharges.
According to another object of the present invention, a kind of panel structure of plasma display is proposed, comprise that a plurality of first keeps electrode, second and keep electrode Y, first address electrode, second address electrode and spaced walls.These first are kept electrode and second and keep electrode Y, be formed on the front glass substrate, and these first keep electrode and these second to keep electrode Y be alternative expression and configuration in pairs equally spacedly, and be parallel to each other.Each these first keep electrode and included one first transparency electrode and one first auxiliary electrode, and respectively second keep electrode Y and included one second transparency electrode and one second auxiliary electrode.Wherein, each first auxiliary electrode and each second auxiliary electrode are the central authorities that place pairing each first transparency electrode and each second transparency electrode respectively, and these transparency electrodes also comprise a plurality of otch.These first address electrodes and these second address electrodes are formed on the back glass substrate relative with front glass substrate, and these first address electrodes and second address electrode to be quadrature first keep electrode and these second and keep electrode Y and correspond to these otch at these.These first address electrodes are to be connected to a plurality of first projection electrodes, and these second address electrodes are to be connected to a plurality of second projection electrodes, and these first projection electrodes and these second projection electrodes are to correspond to these first address electrodes and those defined zones of second address electrode alternately.These spaced walls are formed on the glass substrate of back, and these spaced walls are that quadrature is at these first address electrodes and these second address electrodes.Form a fluorescence coating between these spaced walls respectively with these address electrode quadratures.
The present invention also provides a kind of driving method of plasma display panel, this plasma display panel comprises: n individual first keeps electrode X (1)～X (n) and keeps electrode Y (1)～Y (n) with n individual second, be formed on the front glass substrate, this n first keeps electrode X and is divided into and is numbered first of odd number and keeps electrode X (odd) and be numbered first of even number and keep electrode X (even), this first is kept electrode X and this second to keep electrode Y is alternative expression and configuration in pairs equally spacedly, and be parallel to each other, respectively this first is kept electrode X and has included one first transparency electrode and one first auxiliary electrode, and respectively this second is kept electrode Y and has included one second transparency electrode and one second auxiliary electrode, wherein, respectively this first auxiliary electrode and this second auxiliary electrode respectively place pairing respectively this first transparency electrode and the central authorities of this second transparency electrode respectively respectively; A plurality of address electrodes are formed on relative with this front glass substrate back glass substrate, and this address electrode is to be orthogonal to this first to keep electrode X and this second and keep electrode Y; And a plurality of spaced walls, be formed on this back glass substrate, this spaced walls be quadrature at this address electrode, then form respectively between this spaced walls and a fluorescence coating of this address electrode quadrature; Described driving method comprises the following steps: that (a) second keeps electrode Y (1)～Y (n) and import a replacement pulse this simultaneously; (b) keep the pulse that electrode Y (1)～Y (n) imports a negative voltage to second in regular turn, and according to the image data that will show, optionally this address electrode is imported the pulse of a positive voltage, when selecting to be numbered first of odd number and keep electrode X (odd) and second and keep defined one first discharge cell of electrode Y (1)～Y (n), make and be numbered first of odd number and keep electrode and maintain a noble potential, and when selecting to be numbered first of even number and keep electrode X (even) and keep defined one second discharge cell of electrode Y (1)～Y (n), then make to be numbered first of even number and to keep electrode X (even) and maintain this noble potential; And (c) this is kept electrode Y (1)～Y (n) and import one first ac voltage signal, this first is kept electrode X (odd) input one second ac voltage signal, this first is kept electrode X (even) input one the 3rd ac voltage signal, when selecting this first discharge cell when carrying out discharging action, this second ac voltage signal and this first ac voltage signal are anti-phase, the 3rd ac voltage signal then with this first ac voltage signal homophase, when selecting this second discharge cell when carrying out discharging action, this second ac voltage signal and this first ac voltage signal homophase, the 3rd ac voltage signal is then anti-phase with this first ac voltage signal.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and in conjunction with the accompanying drawings, elaborate.
Fig. 1 is the skeleton view of conventional AC type panel structure of plasma display.
Fig. 2 is the synoptic diagram that conventional AC type plasma scope is kept electrode X and Y.
Fig. 3 is to use the plasma scope of ALIS technology to keep the synoptic diagram of electrode X and Y.
Fig. 4 is to use the spaced walls of plasma scope of ALIS technology and the synoptic diagram of auxiliary electrode relevant position.
Fig. 5 is the skeleton view of first embodiment of the invention panel structure of plasma display.
Fig. 6 is the top view of first embodiment of the invention plasma display.
Fig. 7 is the top view of second embodiment of the invention plasma display.
Fig. 8 A is the synoptic diagram of the present invention first or the second embodiment electrode spread and region of discharge.
Fig. 8 B～8C illustrates first kind of drive waveforms figure of the present invention first or the second embodiment plasma display.
Fig. 8 D illustrates another synoptic diagram of the present invention first or the second embodiment electrode spread and region of discharge.
Fig. 8 E illustrates second kind of drive waveforms figure of the present invention first or the second embodiment plasma display.
Fig. 9 illustrates the top view of the plasma display of third embodiment of the invention.
Figure 10 illustrates third embodiment of the invention plasma display panel driving oscillogram.
Figure 11 illustrates the top view of the plasma display of fourth embodiment of the invention.
Embodiment
Based on the panel structure of plasma display of the use ALIS technology of Fig. 3, the present invention proposes a kind of AC plasma volumetric display that aperture opening ratio is strengthened (AC Plasma Display Panel, ACPDP).Main spirit of the present invention is, by making the fluorophor and the spaced walls (rib) that are positioned on the glass substrate of back all be orthogonal to address electrode A, even make spaced walls and auxiliary electrode overlapping (overlap), reach the raising aperture opening ratio, and make the purpose of the brightness raising of plasma scope.
With reference to Fig. 5, it illustrates the skeleton view according to a kind of AC type plasma display panel structure of the present invention.Front glass substrate 500 have many to long strip type keep electrode X and Y, it is alternative expression and configuration in pairs equally spacedly, and parallel to each other.And Fig. 5 is that to keep electrode X (i) and Y (i) with two pairs be that example is done explanation with X (i+1) and Y (i+1).Each is kept electrode and includes a transparency electrode and an auxiliary electrode, and each auxiliary electrode is the central authorities that place pairing transparency electrode.Wherein, transparency electrode 502,504,506 and 508 belongs to keeps electrode X (i), Y (i), X (i+1), and Y (i+1), and these transparency electrodes can by transparent indium tin oxide (Indium Tin Oxide, ITO) made; Auxiliary electrode 512,514,516 and 518 then can be made by opaque crome metal/copper/chromium (Cr/Cu/Cr).
The below of keeping electrode X and Y is a dielectric layer 519, and the below of dielectric layer 519 then is a protective seam 520.Transparent address electrode (address electrode) A is formed on the back glass substrate 522 relative with front glass substrate 500, and address electrode A is that quadrature is being kept electrode X and Y.Address electrode A for example includes address electrode A (j-1), A (j) and A (j+1).And spaced walls 524,526,528 and 530 is formed on the glass substrate 522 of back, and part has covered address electrode A (j-1), A (j) and A (j+1).And red fluorescence layer R, green fluorescence layer G, and blue fluorescent body B is coated on respectively between spaced walls 524,526,528 and 530, and these fluorescence coatings are and address electrode A quadrature.Wherein, opaque spaced walls 524,526,528 and 530 be separately positioned on pairing auxiliary electrode 512,514,516 and 518 under.Be to define discharge space 532 between protective seam 520 and the fluorescence coating, and discharge space 532 is filled up by discharge gas (discharge gas).Wherein, be to form a region of discharge between per two adjacent spaces walls, each fluorescence coating is to be respectively formed in these region of discharges.
With reference to Fig. 6, it illustrates is the top view of each electrode and spaced walls among Fig. 5.Because be positioned at transparency electrode 502,504,506, and the auxiliary electrode 512,514,516 and 518 of 508 belows be made by opaque metal (chromium/copper/chromium), and spaced walls 524,526,528 and 530 also is opaque, so none method makes light penetration, and forms shading region on plasma display.So, when spaced walls 524,526,528 and 530 be positioned at auxiliary electrode 512,514,516 and 518 under, that is be spaced walls 524,526,528 and 530 and auxiliary electrode 512,514,516 and 518 when overlapping, then can reduce the area of the shading region of plasma display significantly, and then improve aperture opening ratio; So therefore the disclosed plasma scope brightness of the present invention will improve.
Wherein, address electrode A (j) and adjacent two keep between the electrode, and for example be to keep electrode X (i) and keep between the electrode Y (i), or keep electrode Y (i) and keep between the electrode X (i+1), be to define a discharge cell separately.Each discharge cell is to correspond to a sub-pixel.And three adjacent red fluorescence layer R, green fluorescence layer G, with pairing three sub-pixels of blue fluorescent body B be to be combined into a pixel.For example be that sub-pixel 602,604 and 606 is combined into pixel 608.
But in panel structure of plasma display shown in Figure 6, may have between different sub-pixels and hand over the situation of disturbing more.For example: a large amount of space charges that sub-pixel 602 discharge backs are produced in discharge space 532, possibly along spaced walls 524 and 526 s' space, and enter the sub-pixel 610 that should not produce discharge, and and then light sub-pixel 610 and have misoperation to produce, this is to hand over more and disturbs.
With reference to Fig. 7, it illustrates is top view with second embodiment after each transparency electrode distortion among Fig. 5.In Fig. 7, transparency electrode 701,703,705,707 corresponds respectively to the transparency electrode 502,504,506,508 among Fig. 6, and (a) the partially transparent electrode of keeping electrode X and Y between between two address electrodes is cut off (cut-off), and only stay the auxiliary electrode part, or, make to be equaled the auxiliary electrode width by the width of transparent electrode of reduction part and be with the width place (b) with the partially transparent electrode width reduction (narrow) of keeping electrode X and Y between between two address electrodes.Reduce by this and hand over the influence of disturbing more between two pixels.So, in Fig. 7, be so that transparency electrode is cut off, and the mode that produces otch (as otch 702 and 704) reduces and hands over the influence of interference more.These otch make the electrode X that keeps between the different subpixel then only be connected with auxiliary electrode with Y between pairing two address electrodes.
Drive waveforms of the present invention has two kinds of driving methods, first kind of driving method oscillogram shown in Fig. 8 B～8C and with the ALIS technology type seemingly.Wherein, Fig. 8 A is first kind of driving method for convenience of description, the synoptic diagram of electrode spread and the discharge cell that will light of the Fig. 6 that illustrates first embodiment or Fig. 7 second embodiment.
In Fig. 8 A, each keep electrode Y be with at least two to keep electrode X adjacent, keep electrode Y and keep that the crack then forms region of discharge between the electrode X.For example keep electrode Y (1) and be with to keep electrode X (1) adjacent with X (2), and form region of discharge SF respectively
1With SF
2That is each is kept electrode Y and keeps electrode X (odd) and even number with an odd number respectively to keep electrode X (even) adjacent.Therefore Fig. 8 A region of discharge can be divided into two groups: between keeping that electrode Y and odd number keep between electrode X (odd) is odd number region of discharge SF
1, SF
3, SF
5, SF
7, SF
9Keep between electrode X (even) and to be even number region of discharge SF between keeping electrode Y and even number
2, SF
4, SF
6, SF
8, SF
10
First kind of driving method is that the image data of each frame (frame) is divided into odd number subframe (oddsub-frame) and even number subframe (even sub-frame), utilizes this odd number subframe and even number subframe alternately to drive for odd number region of discharge and even number region of discharge; That is, can be right after an even number subframe after the odd number subframe.In odd number subframe address period, have only odd number to keep electrode X (odd) and can be noble potential; In even number subframe address period, have only even number to keep electrode X (even) and can be noble potential, so can avoid on the address electrode single signal together with the time light two discharge spaces.
In Fig. 8 B～8C, Fig. 8 B represents odd number sub-frame drive oscillogram, and Fig. 8 C represents even number sub-frame drive oscillogram.For the AC plasma volumetric display, the drive waveforms of each subframe comprises during three: (reset period) P1, address period (address period) P2 during the replacement, and keep interdischarge interval (sustain discharge period) P3.Now including n with plasma scope keeps electrode X (1)～X (n), n to keep electrode Y (1)～Y (n) is that example is done explanation with m address electrode A (1)～A (m).
Each sub-pixel writes the correctness of data when guaranteeing addressing, is simultaneously to keeping electrode Y (1)～Y (n) input one (reset) pulse 802 of resetting, in order to the wall electric charge in all discharge cells is disposed in replacement period P 1.
In address period P2, import a negative voltage pulse to keeping electrode Y (1)～Y (n) in regular turn respectively.And,, come optionally address electrode A (1)～A (m) to be imported the pulse of a positive voltage according to the image data that will show.
Shown in Fig. 8 B the odd number subframe, in address period P2, if desire (that is is positioned at odd number region of discharge SF to keeping electrode X (odd) when keeping the defined discharge cell of electrode Y
1, SF
3, SF
5, SF
7, SF
9In discharge cell), can keep electrode X (odd) and be maintained at noble potential by making, make the wall charge generation in keeping the pairing discharge cell of electrode Y and X (odd).Even number subframe shown in Fig. 8 C is if desire (that is is positioned at even number region of discharge SF to keeping electrode X (even) when keeping the defined discharge cell of electrode Y
2, SF
4, SF
6, SF
8, SF
10In discharge cell), then make and keep electrode X (even) and keep noble potential.
Therefore, as Fig. 8 B, when Y (1) adds negative voltage, and X (1) is when being positive voltage, then odd number region of discharge SF
1In can be lighted by selectivity by the discharge cell of address electrode A (1)～Am control.As Fig. 8 C, when Y (1) adds negative voltage, and X (2) is when being positive voltage, then even number region of discharge SF
2In can be lighted by selectivity by the discharge cell of address electrode A (1)～A (m) control.
In keeping interdischarge interval P3, because the storage effect of wall electric charge (memory effect), so as long as to keeping electrode Y (1)～Y (n) and keeping the suitable ac voltage signal of electrode X (odd) or X (even) input, then the discharge cell of being lighted in address period P2 will constantly produce the gas discharge action, and sends ultraviolet light constantly.Ultraviolet light is got to after the fluorescence coating, just produces the appreciable visible light of user.
Odd number subframe shown in Fig. 8 B is because the discharge cell of being lighted at address period P2 is to be positioned at odd number to keep electrode X (odd) and adjacent keeping between the electrode Y; Therefore in keeping interdischarge interval P3, odd number is kept the ac voltage signal of electrode X (odd) and keeps electrode Y anti-phase, and the even number ac voltage signal of keeping electrode X (even) with keep electrode Y homophase so that have only odd number to keep electrode X (odd) and keep the defined discharge cell of electrode Y and keep discharging action and produce.On the other hand, even number subframe shown in Fig. 8 C is because the discharge cell that address period P2 is lighted is to be positioned at even number to keep electrode X (even) and keep between the electrode Y; Therefore in keeping interdischarge interval P3, even number is kept the ac voltage signal of electrode X (even) and keeps electrode Y anti-phase, and the odd number ac voltage signal of keeping electrode X (odd) with keep electrode Y homophase so that have only even number to keep electrode X (even) and keep the defined discharge cell of electrode Y and keep discharging action and produce.
Second kind of driving method of the present invention is shown in Fig. 8 E, and Fig. 8 D is in order to the first or second embodiment electrode spread that second kind of driving method is described and the synoptic diagram of region of discharge.Fig. 8 D region of discharge is divided into three groups: and region of discharge C (R, n), C (G, n), C (B, n) the corresponding R of difference, G, B fluorescence coating.Among Fig. 8 D, (R n) is defined with Y (3k+1) by keeping electrode X (3k+1) region of discharge C, or is defined with X (3k+3) by keeping electrode Y (3k+2).In like manner, (G n) is defined with X (3k+2) by keeping electrode Y (3k+1) region of discharge C, or is defined with Y (3k+3) by keeping electrode X (3k+3); And region of discharge C (B n) is then defined by keeping electrode X (3k+2) and Y (3k+2), or is defined by keeping electrode Y (3k+3) and X (3+4), 3k+4 less than, equal n.Wherein, n is a positive integer, and k is the integer more than or equal to 0.
It is as follows that second kind of Fig. 8 D correspondence kept charging method: the image data of each frame is divided into the R subframe again, and the G subframe is with the B subframe; Utilize this R subframe, G subframe and B subframe are in regular turn alternately at the R region of discharge, and G region of discharge and B region of discharge drive.
Fig. 8 E illustrates second kind of drive waveforms figure of the present invention first or the second embodiment plasma display.This kind driving method for respectively in regular turn and repeatedly to region of discharge C (R, n), C (G, n) and C (B n) provides ac voltage signal.That is be that each frame is divided into 3 time sections: R subframe, G subframe and B subframe.In the R subframe, to keeping electrode X (3k+1) and Y (3k+1), with keep electrode Y (3k+2), X (3k+3) provide replacement/address/keep ac voltage signal (as the R sustain of Fig. 8 E) with drive region of discharge C (R, n); In the G subframe, to Y (3k+1) and X (3k+2), with keep electrode X (3k+3) and Y (3k+3) provide replacement/address/keep ac voltage signal (as the G sustain of Fig. 8 E) with drive region of discharge C (G, n); And in the B subframe, to keeping electrode X (3k+2) and Y (3k+2), with keep electrode Y (3k+3) and X (3k+4) provide replacement/address/keep ac voltage signal (as the B sustain of Fig. 8 E) with drive region of discharge C (B, n).
In this driving method, as long as in planning during the R subframe is kept, keep electrode X (3k+2) and keep electrode Y (3k+1) and keep between electrode Y (3k+2) potential difference (PD) and can guarantee to be lower than to excite and keeping the required minimum voltage of discharge between electrode X-Y, in then during R subframe address, keep electrode X (3k+2) can for noble potential or with keep electrode Y same potential.In like manner, keep electrode X (3k+1) during G subframe address, keep electrode X (3k+3) in B subframe address period, all can be noble potential or with keep electrode Y same potential.
With reference to Fig. 9, be the top view of third embodiment of the present invention plasma display.The plasma display of Fig. 9 is another structure with respect to the plasma display among Fig. 7.It is to utilize below each otch of each transparency electrode two address electrodes are set, and makes each region of discharge be able to independent addressing.So, the 3rd embodiment can simplify driving method and driving circuit.
As shown in Figure 9, below otch 902,904 and 906, be respectively arranged with the first address electrode A (J-1,1), A (j, 1), A (j+1,1), with the second address electrode A (j-1,2), A (j, 2), A (j+1,2), it respectively includes most projection electrodes.For keeping electrode Y (i), its top is for keeping electrode X (i), and its below is for keeping electrode X (i+1).Keeping electrode Y (i) and keeping between the electrode X (i) is to correspond to be connected to the first address electrode A (j-1,1), A (j, 1) with A (j+1,1) etc. projection electrode, keeping electrode Y (i) and keeping between the electrode X (i+1) then is to correspond to be connected to the second address electrode A (j-1,2), the projection electrode of A (j, 2) and A (j+1,2) etc.
For instance, the projection electrode 908 that is connected to the first address electrode A (j, 1) is to place on the glass substrate 522 of back, and places with respect to keeping electrode X (i) and the defined sub-pixel 914 of Y (i).The projection electrode 908 of part is with to keep electrode X (i) and Y (i) overlapping.In like manner, be connected to the projection electrode 910 and 912 of second address electrode A (j-1,2) and A (j, 1) respectively, then correspond to sub-pixel 916 and 918 respectively.In Fig. 9, be that the T font that is shaped as with projection electrode is that example is done explanation, yet implement when of the present invention and not subject to the limits.
Figure 10 illustrates third embodiment of the invention plasma display panel driving oscillogram.As shown in the figure, at address period P2, make and keep electrode X and be maintained at a noble potential, when being scanned up to (Y (1) has a underbalance pulse) when keeping electrode Y (1), by address electrode A (1,1)～A (m, 1), first image data can be write discharge cell between Y (1) and X (1); And, second image data can be write the discharge cell between Y (1) and X (2) by address electrode A (1,2)～A (m, 2).So scan all electrode Y (1)～Y (n) that keep in regular turn, just data can be write all discharge cells of panel.
The discharging structure of third embodiment of the invention, keeping electrode Y (1) upside is that downside is to be controlled by address electrode A (1,2)～A (m, 2) by address electrode A (1,1)～A (m, 1) control; That is keeping electrode Y upper and lower sides is that two different address electrodes are controlled; Even if so in address period P2, all are kept electrode X (1)～X (m) and all are noble potential simultaneously, an address electrode also can only be lighted a discharge cell.So can remove from Fig. 8 B～8C driving method, X (odd) and X (even) can not be the restriction of noble potential simultaneously, so the discharging structure of the 3rd embodiment can be simplified drive waveforms effectively.
With reference to Figure 11, be the top view of fourth embodiment of the present invention plasma display.The plasma display of Figure 11 is another structure with respect to the plasma display among Fig. 7, and it is to utilize in the S-shaped extension in each region of discharge of each transparency electrode, makes each sub-pixel be able to independent addressing.So, the 4th embodiment can simplify driving method and driving circuit.
As shown in figure 11, (i is by address electrode A (j-1) j-1) to sub-pixel R, and first keeps electrode X (i), and second keeps electrode Y (i) controls and whether discharge.(i is by address electrode A (j+1) j+1) to sub-pixel R, and first keeps electrode X (i), and second keeps electrode Y (i) controls and whether discharge.(i is by address electrode Aj j) to sub-pixel G, and first keeps electrode X (i+1), and second keeps electrode Y (i) controls and whether discharge.(i+1 is by address electrode A (j-1) j-1) to sub-pixel B, and first keeps electrode X (i+1), and second keeps electrode Y (i+1) controls and whether discharge.
By following design, (I) at transparency electrode 703 and address electrode A (j-1) quadrature place, (a) keeping electrode X (i) direction to first, transparency electrode 703 is extended and is exceeded outside this auxiliary electrode 514, (b) keeping electrode X (i+1) direction to first, transparency electrode 703 is to trim with this auxiliary electrode 514.(II) at transparency electrode 705 and address electrode A (j-1) quadrature place, (a) keeping electrode Y (i+1) direction to second, transparency electrode 705 is extended and is exceeded outside this auxiliary electrode 516, (b) is keeping electrode Y (i) direction to second, and transparency electrode 705 is to trim with this auxiliary electrode 516.
Therefore for address electrode A (j-1), first keeps electrode X (i+1) and second, and to keep the spacing of electrode Y (i) excessive and can't discharge, and first keeps electrode X (i+1) and second keeps region of discharge between electrode Y (i) and can't become a G sub-pixel that can be excited discharge by address electrode A (j-1).
The fourth embodiment of the present invention can be used known PDP driving method, scans all electrode Y (1)～Y (n) that keep in regular turn, but just data can be write the discharge cell of panel.When for example scanning Y (i), data write R (i, j-1), G (i, j), R (i, j+1) etc.This 4th embodiment need not to distinguish the odd/even subframe as (a) first embodiment, or (b) the 3rd embodiment uses two group address electrodes.
The panel structure of plasma display of the disclosed high aperture of the above embodiment of the present invention can reduce effectively and hand over the influence of disturbing more.Further, the present invention can make driving method more simplify by increasing the number of address electrode, and reduces the cost of driving circuit.The present invention can reach the raising aperture opening ratio, makes the purpose of the brightness raising of plasma scope.
In sum; though the present invention discloses as above with a preferred embodiment; right its is not in order to limit the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; when can doing various changes and retouching, so protection scope of the present invention should be with being as the criterion that the claim scope is defined.
Claims (11)
1. panel structure of plasma display comprises:
One front glass substrate;
One back glass substrate, this back glass substrate is relative with this front glass substrate;
A plurality of first keeps electrode (X) and a plurality of second keeps electrode (Y), this first is kept electrode (X) second to keep electrode (Y) is to form alternately on this front glass substrate with this, this first is kept electrode (X) and includes one first transparency electrode and one first auxiliary electrode respectively, this first auxiliary electrode is to be separately positioned on pairing this first transparency electrode, and this second keeps electrode (Y) and includes one second transparency electrode and one second auxiliary electrode respectively, and this second auxiliary electrode is to be separately positioned on pairing this second transparency electrode;
A plurality of address electrodes are formed on this back glass substrate, and this address electrode is to be orthogonal to this first to keep electrode (X) and second keep electrode (Y) with this;
A plurality of spaced walls are formed on this address electrode, and this spaced walls is orthogonal to this address electrode, form a region of discharge between per two adjacent spaces walls; And
A plurality of fluorescence coatings, this fluorescence coating are to be formed at respectively in this region of discharge.
2. panel structure of plasma display as claimed in claim 1, wherein, this spaced walls is separately positioned under pairing this auxiliary electrode.
3. panel structure of plasma display as claimed in claim 1, wherein, this first is kept electrode (X) and comprises one first and keep electrode (X (i)) and one first and keep electrode (X (i+1)), this second is kept electrode (Y) and comprises one second and keep electrode (Y (i)), and second to keep electrode (Y (i)) be first to keep electrode (X (i)) and this first and keep between the electrode (X (i+1)) between this for this;
Wherein, second keep electrode (Y (i)) and this address electrode quadrature place at this, (a) first keeping electrode (X (i)) direction towards this, this second second transparency electrode of keeping electrode (Y (i)) is extended and is exceeded outside this second auxiliary electrode, (b) keeping electrode (X (i+1)) direction towards first, this second second auxiliary electrode of keeping electrode (Y (i)) is to trim or exceed this second transparency electrode.
4. panel structure of plasma display as claimed in claim 1, wherein, this transparency electrode also comprises a plurality of otch, this otch lays respectively between the address electrode of pairing two vicinities, hands over the influence of disturbing more in order to reduce.
5. panel structure of plasma display as claimed in claim 1, wherein, this transparency electrode also comprises a plurality of width reduction place, this width reduction place lays respectively between the address electrode of pairing two vicinities, hands over the influence of disturbing more in order to reduce.
6. panel structure of plasma display as claimed in claim 1, this region of discharge is divided into one first group of region of discharge and one second group of region of discharge again, this address electrode is divided into one first group address electrode and one second group address electrode again, and wherein, this plasma display panel structure also comprises:
One first projection electrode is arranged in this first group of region of discharge, and this first projection electrode is to be connected with this first group address electrode;
One second projection electrode is arranged in this second group of region of discharge, and this second projection electrode is to be connected with this second group address electrode;
Keep electrode (Y) by this first group address electrode and this second thus this first group of region of discharge discharged, keep electrode (Y) by the secondth group address electrode and this second this second group of region of discharge discharged.
7. panel structure of plasma display as claimed in claim 6, wherein, this second this transparency electrode of keeping on the electrode (Y) comprises a width reduction place, and this first group address electrode and this second group address electrode and this second kept electrode (Y) and be orthogonal to this width reduction place.
8. panel structure of plasma display as claimed in claim 6, wherein, this second this transparency electrode of keeping on the electrode (Y) comprises a kerf, and this first group address electrode and this second group address electrode and this second kept electrode (Y) and be orthogonal to this incision.
9. panel structure of plasma display as claimed in claim 6, wherein, this first projection electrode is a T font structure.
10. driving method of plasma display panel, this plasma display panel comprises:
N individual first keeps electrode (X (1))～(X (n)) and keeps electrode (Y (1))～(Y (n)) with n individual second, be formed on the front glass substrate, this n first keeps electrode (X) and is divided into and is numbered first of odd number and keeps electrode (X (odd)) and be numbered first of even number and keep electrode (X (even)), this first keep electrode (X) with this second keep electrode (Y) be alternative expression and equally spacedly in pairs the configuration, and be parallel to each other, respectively this first is kept electrode (X) and has included one first transparency electrode and one first auxiliary electrode, and respectively this second is kept electrode (Y) and has included one second transparency electrode and one second auxiliary electrode, wherein, respectively this first auxiliary electrode and this second auxiliary electrode respectively place pairing respectively this first transparency electrode and the central authorities of this second transparency electrode respectively respectively;
A plurality of address electrodes are formed on relative with this front glass substrate back glass substrate, and this address electrode is to be orthogonal to this first to keep electrode (X) and second keep electrode (Y) with this; And
A plurality of spaced walls are formed on this back glass substrate, this spaced walls be quadrature at this address electrode, then form a fluorescence coating between this spaced walls respectively with this address electrode quadrature;
Described driving method comprises the following steps:
(a) simultaneously this second is kept electrode (Y (1))～(Y (n)) and import a replacement pulse;
(b) keep the pulse that electrode (Y (1))～(Y (n)) imports a negative voltage to second in regular turn, and according to the image data that will show, optionally this address electrode is imported the pulse of a positive voltage, when selecting to be numbered first of odd number and keep electrode (X (odd)) and second and keep defined one first discharge cell of electrode (Y (1))～(Y (n)), make and be numbered first of odd number and keep electrode (X (odd)) and maintain a noble potential, and when selecting to be numbered first of even number and keep electrode (X (even)) and keep defined one second discharge cell of electrode (Y (1))～(Y (n)), then make to be numbered first of even number and to keep electrode (X (even)) and maintain this noble potential; And
(c) this is kept electrode (Y (1))～(Y (n)) and import one first ac voltage signal, this first is kept electrode (X (odd)) input one second ac voltage signal, this first is kept electrode (X (even)) input one the 3rd ac voltage signal, when selecting this first discharge cell when carrying out discharging action, this second ac voltage signal and this first ac voltage signal are anti-phase, the 3rd ac voltage signal then with this first ac voltage signal homophase, when selecting this second discharge cell when carrying out discharging action, this second ac voltage signal and this first ac voltage signal homophase, the 3rd ac voltage signal is then anti-phase with this first ac voltage signal.
11. a driving method of plasma display panel, this plasma display panel comprises:
N individual first keeps electrode (X (1))～(X (n)) and keeps electrode (Y (1))～(Y (n)) with n individual second, be formed on the front glass substrate, this n first keeps electrode (X) and is divided into and is numbered first of odd number and keeps electrode (X (odd)) and be numbered first of even number and keep electrode (X (even)), this first is kept electrode (X) second to keep electrode (Y) is alternative expression and configuration in pairs equally spacedly with this, and is parallel to each other;
A plurality of address electrodes are formed on relative with this front glass substrate back glass substrate, and this address electrode is to be orthogonal to this first to keep electrode (X) and second keep electrode (Y) with this; And
A plurality of spaced walls are formed on this back glass substrate, and this spaced walls is to be orthogonal to this address electrode, then form the fluorescence coating with this address electrode quadrature between this spaced walls respectively;
Described driving method comprises the following steps:
(a) simultaneously this second is kept electrode (Y (1))～(Y (n)) and import a replacement pulse;
(b) keep the pulse of electrode (Y (1))～(Y (n)) input one negative voltage to second in regular turn respectively, and, optionally this address electrode is imported the pulse of a positive voltage according to the image data that will show; And
(c) in very first time during section, this first is kept electrode (X (3k+1)) and this second and keep electrode (Y (3k+1)) anti-phase each other ac voltage signal is provided respectively, and this second is kept electrode (Y (3k+2)) promptly this first is kept electrode (X (3k+3)) anti-phase each other ac voltage signal is provided respectively;
In second time during section, this second is kept electrode (X (3k+1)) and this first and keep electrode (Y (3k+2)) anti-phase each other ac voltage signal is provided respectively, and this first is kept electrode (X (3k+3)) and this second and keep electrode (Y (3k+3)) anti-phase each other ac voltage signal is provided respectively; And
In the 3rd time during section, this first is kept electrode (X (3k+2)) and this second and keep electrode (Y (3k+2)) anti-phase each other ac voltage signal is provided respectively, and this first is kept electrode (Y (3k+3)) promptly this second is kept electrode (X (3k+4)) anti-phase each other ac voltage signal is provided respectively, wherein, k is the integer more than or equal to 0, and 3k+4 is smaller or equal to n.
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| CNB001287869A CN1173317C (en) | 2000-09-21 | 2000-09-21 | Panel structure of plasma display and its driven method |
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| CNB001287869A CN1173317C (en) | 2000-09-21 | 2000-09-21 | Panel structure of plasma display and its driven method |
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| CN1173317C true CN1173317C (en) | 2004-10-27 |
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