CN100562910C - Plasma display - Google Patents
Plasma display Download PDFInfo
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- CN100562910C CN100562910C CN 200510062670 CN200510062670A CN100562910C CN 100562910 C CN100562910 C CN 100562910C CN 200510062670 CN200510062670 CN 200510062670 CN 200510062670 A CN200510062670 A CN 200510062670A CN 100562910 C CN100562910 C CN 100562910C
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Abstract
Plasma display, the plasma display that will have vertical bar shape barrier rib earlier is divided at least two block scan zones earlier, wherein each scanning area comprises a plurality of scan electrodes and a plurality of common electrode, and these scan electrodes and common electrode are to arrange according to an electrode spread sequence alternate; Then, these luminescence units in each scanning area are carried out addressing, wherein the electrode spread order of corresponding each scanning area of the address scan direction of each scanning area.
Description
Technical field
The invention relates to a kind of plasma display.
Background technology
Plasma display (Plasma Display Panel; PDP), be to produce ultraviolet ray by gas discharge to excite phosphor body to launch visible light.In plasma display, three-electrode structure be can use usually, common (Common) electrode, scanning (Scan) electrode and addressing (Address) electrode comprised.
Fig. 1 is the schematic top plan view of the electrode structure of existing plasma display, and wherein this plasma displaying appliance has vertical bar shape barrier rib.Please refer to Fig. 1, this electrode structure is formed at image mostly and shows in the upper substrate of a side, comprises scan electrode 102 and common electrode 104.Luminescence unit (Emitting Cell) the 100th is defined by vertical bar shape barrier rib 116 that is positioned at infrabasal plate and above-mentioned electrode structure, shown in the dotted line square region among Fig. 1.
When applying a voltage to luminescence unit 100, can form electric field between electrode, make that the electronics of the mixed gas in the luminescence unit 100 is quickened, the bump neutral particle, neutral particle is ionized into electronics and ion, thereby forms plasmoid, generate ultraviolet light (UV).By the phosphor body in the UV optical excitation luminescence unit 100, make redness (R), green (G), blue three look phosphor powders such as (B) can produce visible light, and then the red, green, blue look of mixing different proportion is to show the image of various colors again.
In plasma display, the luminescence unit that is positioned at same row generally is scan electrode of configuration, is example as if the resolution 852*480 with the VGA specification, and this moment, plasma display must dispose at least 480 scan electrodes.Along with scientific-technical progress, the size of plasma display is increasing, and resolution is also more and more higher, and therefore the scan electrode number that is disposed is also more and more.In order in the fixing update cycle, to finish the addressing of all scan electrodes, prior art proposes the addressing mode of a kind of " two addressing (Dual scan) ", the panel of plasma display is divided into two scanning areas up and down, and in the same update cycle, respectively this two scanning area is scanned simultaneously, to quicken to finish the addressing of whole front panel.
Yet when carrying out the addressing of scan electrode with known two addressing modes, but up and down the flash-over characteristic difference of two scanning areas is excessive and the situation of drive waveforms takes place to be difficult for adjusting for Chang Yin.This can make that the scope of operating voltage of two scanning areas is different, and causes the demonstration situation of plasma display unusual.
Summary of the invention
The objective of the invention is to be to provide a kind of plasma display, wherein all corresponding its electrode spread of the address scan direction of each scanning area in proper order, with the difference between the flash-over characteristic that reduces each scanning area, make that the scope of operating voltage of each scanning area is approaching, to improve the display quality of plasma display.
According to a preferred embodiment of the present invention, this plasma displaying appliance has a upper substrate and an infrabasal plate, and a plurality of vertical bar shape of the internal surface configurations of infrabasal plate barrier rib.This plasma display comprises at least two scanning areas and a driving circuit, and wherein each scanning area all comprises a plurality of scan electrodes and a plurality of common electrode.Scan electrode and common electrode all are disposed within the upper substrate, and arrange according to an electrode spread sequence alternate.Driving circuit then is to electrically connect these scan electrodes and common electrode, and these luminescence units in each scanning area are carried out addressing, and wherein driving circuit is the electrode spread order of corresponding each scanning area to the address scan direction of each scanning area.
Description of drawings
Fig. 1 is the schematic top plan view of the electrode structure of existing plasma display;
Fig. 2 A is the synoptic diagram that is carried out addressing in scanning area by scan electrode to common electrode;
Fig. 2 B and Fig. 2 C then are the flash-over characteristic synoptic diagram of the adjacent luminescence unit of scanning area among Fig. 2 A;
Fig. 3 A is the synoptic diagram that is carried out addressing in scanning area by common electrode to scan electrode;
Fig. 3 B and Fig. 3 C then are the flash-over characteristic synoptic diagram of the adjacent luminescence unit of scanning area among Fig. 3 A;
Fig. 4 is the method flow diagram of a preferred embodiment of the present invention; And
Fig. 5 A, 5B, 6A and 6B are several synoptic diagram about the relativeness of address scan direction and electrode spread order.
Description of reference numerals
100: luminescence unit
102: scan electrode
104: common electrode
116: barrier rib
200,300: scanning area
202,302: the address scan direction
204,206,304,306: luminescence unit
402,404: step
502,504,602,604: scanning area
506,606: driving circuit
512a, 512b, 514a, 514b: address scan direction
612a, 612b, 614a, 614b: address scan direction
Embodiment
In order to clearly demonstrate preferred embodiment of the present invention, below be example with two kinds of different electrode spread orders between scan electrode and common electrode with the address scan direction earlier, the excessive reason of flash-over characteristic difference that causes each scanning area is described.At first define the dummy suffix notation among several diagrams, scan electrode is defined as X, and common electrode is defined as Y, and addressing electrode is defined by W, and ion is defined as i, and electronics is defined as e.
It shown in Fig. 2 A a kind of synoptic diagram that in scanning area, scan electrode and common electrode is carried out addressing direction (by the X electrode to the scanning of Y electrode), this scanning area 200 has vertical bar shape barrier rib (not illustrating among the figure), and its address scan direction of carrying out addressing is by the past common electrode Y of scan electrode X.Flash-over characteristic synoptic diagram when Fig. 2 B and Fig. 2 C then are the adjacent luminescence unit addressing of scanning area 200 among Fig. 2 A.Below explanation please be simultaneously with reference to Fig. 2 A, Fig. 2 B and Fig. 2 C.
Shown in Fig. 2 A, this scanning area 200 comprises a plurality of scan electrode X and a plurality of common electrode Y, and these scan electrodes X and common electrode Y arrange according to an electrode spread sequence alternate.And this scanning area 200 is according to carrying out addressing by scan electrode X toward the address scan direction 202 of common electrode Y.More particularly, be the address scan (shown in Fig. 2 B) of advanced line scanning electrode Xn and common electrode Yn, and then carry out the address scan (shown in Fig. 2 C) of scan electrode Xn+1 and common electrode Yn+1.
Moreover because the barrier rib in the scanning area 200 is the vertical bar shape, therefore the luminescence unit 204 and 206 perpendicular to scan electrode X and common electrode Y communicates with each other.When continuous two the luminescence unit discharges that communicate, the electric charge of luminescence unit (as electronics or ion) can be passed to adjacent luminescence unit.Under the scan mode of Fig. 2 A, the ion i of next luminescence unit 206 can reach last luminescence unit 204, and neutralization has been accumulated in the electronics e on the last addressing electrode W of reaching of common electrode Yn.At this moment, the electric charge that transmitted of luminescence unit 206 is ion i.
Fig. 3 A is the another kind of synoptic diagram that scan electrode and common electrode is carried out addressing direction (being scanned to the X electrode by the Y electrode) in scanning area, this scanning area 300 also has vertical bar shape barrier rib (not illustrating among the figure), and its address scan direction system that carries out addressing is different with Fig. 2 A by the past scan electrode X of common electrode Y.Flash-over characteristic synoptic diagram when Fig. 3 B and Fig. 3 C then are the adjacent luminescence unit addressing of scanning area 300 among Fig. 3 A.Below explanation please be simultaneously with reference to Fig. 3 A, Fig. 3 B and Fig. 3 C.
As shown in Figure 3A, this scanning area 300 comprises a plurality of scan electrode X and a plurality of common electrode Y, and these scan electrodes X and common electrode Y arrange according to an electrode spread sequence alternate.And this scanning area 300 is according to carrying out addressing by common electrode Y toward the address scan direction 302 of scan electrode X.More particularly, be the address scan (shown in Fig. 3 B) of carrying out common electrode Ym and scan electrode Xm earlier, and then carry out the address scan (shown in Fig. 3 C) of common electrode Ym+1 and scan electrode Xm+1.
Moreover, because the barrier rib in the scanning area 300 is the vertical bar shape, therefore perpendicular to the luminescence unit 304 and 306 of scan electrode X and common electrode Y for communicating with each other.When continuous two the luminescence unit discharges that communicate, the electric charge of luminescence unit (as electronics or ion) can be passed to adjacent luminescence unit.Under the scan mode of Fig. 3 A, the electronics e of next luminescence unit 306 can reach last luminescence unit 304, and neutralization has been accumulated in the ion i on the common electrode Ym.At this moment, the electric charge that transmitted of luminescence unit 306 is electronics e.
In sum as can be known, when the address scan direction 202 with Fig. 2 A scanned, the ion i of next luminescence unit 206 can reach last luminescence unit 204; When the address scan direction 302 with Fig. 3 A scanned, the electronics e of next luminescence unit 306 can reach last luminescence unit 304.That is to say, when continuous two luminescence units discharge, Fig. 2 A luminescence unit 206 transmitted is ion i, and Fig. 3 A luminescence unit 306 transmitted is electronics e, both are also inequality.
Yet because the quality of ion i and electronics e has thousands of times difference, the mobility (mobility) that causes electronics e is much larger than ion i, so electronics e will have the bigger chance institute's charges accumulated in the adjacent luminescence unit that can neutralize.In other words, for two kinds of scan modes of Fig. 2 A and Fig. 3 A, both probability of adjacent luminescence unit stored charge and inequality that neutralize.If use different address scan modes in the different scanning zone of same panel, then in keeping discharge regime, the scan electrode of each scanning area, the wall CHARGE DISTRIBUTION on the common electrode are can difference excessive.So cause the flash-over characteristic difference of the scanning area that same panel drives in the different scanning mode, and the situation of drive waveforms takes place to be difficult for adjusting.
Fig. 4 is the method flow diagram of a preferred embodiment of the present invention.In order to address the above problem, this preferred embodiment unify address scan direction in each scanning area with and the relativeness of electrode spread order, make that the scope of operating voltage of each scanning area is approaching, effectively adjust the whole flash-over characteristic of panel.
As shown in Figure 4, this driving method is that the plasma display that will have vertical bar shape barrier rib earlier is divided at least two scanning areas, wherein each scanning area comprises a plurality of scan electrodes and a plurality of common electrode, and these scan electrodes and common electrode are arranged (step 402) according to an electrode spread sequence alternate.Then, these electrodes in each scanning area are carried out addressing, wherein the address scan direction of each scanning area is the electrode spread order (step 404) of corresponding each scanning area.
According to this preferred embodiment, the address scan direction of each scanning area has identical relativeness with the electrode spread order.That is each scanning area is all according to carrying out addressing by scan electrode toward the address scan direction of common electrode.Perhaps, each scanning area is all according to carrying out addressing by common electrode toward the address scan direction of scan electrode.Moreover two above-mentioned scanning areas can have identical or different electrode spread order.
Fig. 5 A, 5B, 6A and 6B are several synoptic diagram about the relativeness of address scan direction and electrode spread order, for being illustrated more clearly in this preferred embodiment.Fig. 5 A has identical electrode spread order with two scanning areas among Fig. 5 B, and Fig. 6 A then has different electrode spread in proper order with two scanning areas among Fig. 6 B.What will illustrate earlier is that the plasma display of this preferred embodiment has a upper substrate and an infrabasal plate, and a plurality of vertical bar shape of the internal surface configurations of its infrabasal plate barrier rib.
Shown in Fig. 5 A and Fig. 5 B, the panel of a plasma display is divided at least two scanning areas 502 and 504. Scanning area 502 and 504 comprises a plurality of scan electrode X and a plurality of scan electrode Y, all is disposed within the upper substrate.And two scanning areas 502 and 504 are arranged these scan electrodes X and scan electrode Y according to identical electrode spread sequence alternate.
Shown in Fig. 5 A, scanning area 502 and 504 is to carry out addressing according to address scan direction 512a and 514a respectively, promptly according to carrying out addressing by scan electrode X toward the direction of common electrode Y.Perhaps, shown in Fig. 5 B, scanning area 502 and 504 is to carry out addressing according to address scan direction 512b and 514b respectively, promptly according to carrying out addressing by scan electrode Y toward the direction of common electrode X.
On the other hand, shown in Fig. 6 A and Fig. 6 B, the panel of another plasma display is divided at least two scanning areas 602 and 604. Scanning area 602 and 604 comprises a plurality of scan electrode X and a plurality of scan electrode Y, all is disposed within the upper substrate.And two scanning areas 602 and 604 are to arrange these scan electrodes X and scan electrode Y according to different electrode spread sequence alternates respectively.
As shown in Figure 6A, scanning area 602 and 604 is to carry out addressing according to address scan direction 612a and 614a respectively, promptly according to carrying out addressing by scan electrode X toward the direction of common electrode Y.Perhaps, shown in Fig. 6 B, scanning area 602 and 604 is to carry out addressing according to address scan direction 612b and 614b respectively, promptly according to carrying out addressing by scan electrode Y toward the direction of common electrode X.
From the above, the address scan direction of each scanning area in this preferred embodiment with and electrode spread have identical relativeness in proper order, make that so the scope of operating voltage of each scanning area is approaching, with the difference between the flash-over characteristic that reduces each scanning area.By the design of corresponding its electrode spread order of this address scan direction, the whole flash-over characteristic of panel can be effectively adjusted in this preferred embodiment, and improves the display quality of plasma display.
Be noted that, though above content only illustrates preferred embodiment of the present invention with two scanning areas, but the person skilled in the art should understand, increasing or when its resolution was more and more higher (for example XGA1024*768 or higher), same panel can correspondingly be split into not only two scanning area when the panel size of plasma display.Yet, as long as the address scan direction that is positioned at least two scanning areas on the same panel with and electrode spread have identical relativeness in proper order, should also conform with spirit of the present invention and be contained in protection scope of the present invention.
Though the present invention discloses as above with a preferred embodiment; right its is not in order to limiting the present invention, anyly has the knack of this skill person, 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 is when looking being as the criterion that claims define.
Claims (4)
1. a plasma display has a upper substrate and an infrabasal plate, and a plurality of vertical bar shape of the internal surface configurations of this infrabasal plate barrier rib, and this plasma display comprises at least:
At least two scanning areas, wherein each scanning area comprises at least
The multi-strip scanning electrode is respectively first to N bar scan electrode, is disposed within this upper substrate; And
Many common electrodes are respectively first to N bar common electrode, be disposed within this upper substrate, and these scan electrodes and these common electrodes are disposed within this upper substrate in the mode of alternately arranging to putting in order of N bar according to first respectively; And
One drive circuit electrically connects these scan electrodes and these common electrodes, and these electrodes in each scanning area are carried out addressing, and wherein this driving circuit carries out addressing to the direction of scanning of N bar to each scanning area with first.
2. plasma display as claimed in claim 1 is characterized in that, described driving circuit is all according to carrying out addressing by scan electrode toward this address scan direction of common electrode in each scanning area.
3. plasma display as claimed in claim 1 is characterized in that, described driving circuit is all according to carrying out addressing by common electrode toward this address scan direction of scan electrode in each scanning area.
4. plasma display as claimed in claim 1 is characterized in that, described two scanning areas have identical electrode spread order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510062670 CN100562910C (en) | 2005-03-29 | 2005-03-29 | Plasma display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510062670 CN100562910C (en) | 2005-03-29 | 2005-03-29 | Plasma display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1841460A CN1841460A (en) | 2006-10-04 |
| CN100562910C true CN100562910C (en) | 2009-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510062670 Expired - Fee Related CN100562910C (en) | 2005-03-29 | 2005-03-29 | Plasma display |
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| CN (1) | CN100562910C (en) |
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- 2005-03-29 CN CN 200510062670 patent/CN100562910C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1841460A (en) | 2006-10-04 |
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Granted publication date: 20091125 Termination date: 20130329 |