CN1154970C - Plasma displaying board with auxiliary electrode and driving method - Google Patents
Plasma displaying board with auxiliary electrode and driving method Download PDFInfo
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- CN1154970C CN1154970C CNB001067435A CN00106743A CN1154970C CN 1154970 C CN1154970 C CN 1154970C CN B001067435 A CNB001067435 A CN B001067435A CN 00106743 A CN00106743 A CN 00106743A CN 1154970 C CN1154970 C CN 1154970C
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- electrode
- discharge
- discharge sustain
- auxiliary electrode
- electromotive force
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Abstract
To quicken a timing, at which a locker tip part makes contact with a tire, as much as possible and to decrease a bending moment exerted on a locker. This lower structure comprises lockers 10 arranged at the respective sides of a car body; and front pillars coupled to the respective lockers. In this case, the locker 10 is formed in structure that the flanges of two panels are joined together for closing, and the joining parts of the flange are positioned at an upper and a lower position. The locker comprises a deformation difficult part 16 positioned further in more rear than a coupling part to the front pillar; and a deformation easy part 18 positioned in front. The deformation easy part 18 has an upper surface lifted to a position above the upper surface 51, except a flange, of the deformation difficult part 16 and within the height of a flange 50.
Description
Technical field
The present invention relates to a kind of plasma display panel, more specifically, relate to a kind of have be used to be reduced in plasma display panel and the driving method thereof that the discharge sustain electric discharge between electrodes begins the auxiliary electrode of voltage.
Background technology
Fig. 1 represents the structure of the electrode in traditional surface discharge type plasma display panel of alternating current.As shown in Figure 1, data electrode 5 is arranged on the meron 2.The discharge sustain electrode comprises scan electrode 3 (also being known as the Y electrode hereinafter) and common electrode 4 (also being known as the X electrode hereinafter), the discharge sustain electrode is set abreast makes itself and data electrode 5 quadratures.Be coated with insulation course 7 on the discharge sustain electrode 3 and 4.Each discharge cell has the discharge space 9 that forms with discharge sustain electrode 3 wall 6 vertical with 4 (dotted line represent part be rotated 90 degree) by bar shaped, and arrangement has discharge sustain electrode 3 and 4 in each discharge cell.Just on X electrode 4 and the electrode 3, around discharge space, be provided with bus electrode 8, at the discharge sustain electrode to improve the electric conductivity of transparency electrode 3 and 4.
Having on the plasma display panel of said structure, is that address period drives and the continuous discharge driving to the driving rough segmentation of an electrode.As shown in Figure 2, (80V-(170V)=250V) produces, forms the wall electric charge this moment address period by the electric potential difference between the Y electrode 3 on data electrode on the meron 25 and the preceding substrate 1.Continuous discharge is produced by the electric potential difference (140V-0V=140V) between Y electrode 3 and the X electrode 4, and Y electrode 3 and X electrode 4 are placed in the discharge cell of a formation wall electric charge.The continuous discharge that shows realistic images becomes main discharge.
The main discharge that electric potential difference between X electrode 4 and the Y electrode 3 forms reduces in time, as shown in Figure 3.This is because in the electrode structure of traditional surface discharge type plasma display panel of alternating current, the distance between preceding on-chip X electrode 4 and the Y electrode 3 approximately is 80-100 μ m, so the electrically driven (operated) discharge ionization voltage of type discharge generally can not be less than 160V.When discharge ionization voltage became big, power consumption increased, and the speed of driving circuit becomes faster, so cost increases.Also have, adjacent electrode can produce induced voltage, therefore causes crosstalking.The distance of dwindling in order to reduce discharge ionization voltage between X electrode 4 and the Y electrode 3 can make electrostatic capacitance become too big, that is to say, discharge ionization voltage reduces when two distance between electrodes d diminish.Yet, increase owing to do not wish electrostatic capacitance, thus make apart from d reduce be restricted.Reducing discharge ionization voltage and not increasing electrostatic capacitance parasitic between two electrodes is very important for driving plasma display panel.
Summary of the invention
In order to solve the above problems, the method that the purpose of this invention is to provide a plasma display panel and this display board of driving, in plasma display panel,, a thin auxiliary electrode reduces discharge ionization voltage significantly between X electrode and Y electrode to keep X electrode and Y electrode by being installed.
Therefore, for achieving the above object, a kind of surface discharge type plasma display panel of alternating current is provided, the wall that it comprises preceding substrate facing one another and have one section predetermined distance and meron, be used to keep the distance between this preceding substrate and the meron and discharge space is provided, be installed on this preceding substrate surface strip discharge sustain electrode pair parallel to each other be installed in the lip-deep strip data electrode vertical of this meron with this discharge sustain electrode pair, wherein, each is to being equipped with the auxiliary electrode of a predetermined thickness between the discharge sustain electrode.
The described thickness of auxiliary electrode is like this, and it does not increase the electrostatic capacitance of described discharge sustain electrode pair.
Achieve the above object, a kind of method that is used to drive plasma display panel is provided, this plasma display board comprises a preceding substrate and meron that faces one another and have one section predetermined distance, the wall that is used to keep the distance between this preceding substrate and the meron and discharge space is provided, be installed in the strip discharge sustain electrode pair parallel to each other on this preceding substrate surface, with be installed in the lip-deep strip data electrode vertical of this meron with this discharge sustain electrode pair, wherein, each is to being equipped with the auxiliary electrode of a predetermined thickness between the discharge sustain electrode.This method may further comprise the steps: applying an auxiliary electrode driving pulse early than the time point that the discharge sustain pulse is applied to this discharge sustain electrode pair to this auxiliary electrode.
In the present invention, when the discharge sustain pulse is applied on the discharge sustain electrode pair and discharge when becoming big, the auxiliary electrode driving pulse makes the electromotive force of auxiliary electrode equal to have in this discharge sustain electrode pair the electromotive force of the electrode of high potential; When discharge reduces, make the electromotive force of auxiliary electrode equal to have electromotive force than the electrode of low potential.
In the present invention, when the discharge sustain pulse is applied on the discharge sustain electrode pair and discharge when becoming big, the auxiliary electrode driving pulse makes the electromotive force of auxiliary electrode equal to have in this discharge sustain electrode pair electromotive force than the electrode of low potential; When discharge reduces, make the electromotive force of auxiliary electrode equal to have the electromotive force of the electrode of high potential.
By describing most preferred embodiment with reference to the accompanying drawings, above-mentioned purpose of the present invention and advantage will be clearer.
Description of drawings
Fig. 1 is the sectional view of traditional plasma display panel.
Fig. 2 is the electrode drive signal oscillogram that is applied on the plasma display panel of Fig. 1.
Fig. 3 is the density map of the electronics that produces in discharge space of the electrode drive signal by Fig. 2.
Fig. 4 is the electrode structure sectional view according to plasma display panel of the present invention.
Fig. 5 is the oscillogram that is applied to the electrode drive signal on the plasma display panel of Fig. 4.
Fig. 6 is the density map of the electronics that produces in discharge space of the electrode drive signal by Fig. 5.
Fig. 7 A to Fig. 7 E illustrates the distribution of the wall electric charge that the electrode drive signal of Fig. 5 forms in discharge cell.
Fig. 8 illustrates the waveform of the electrode drive signal on the plasma display panel that is applied to Fig. 4, has wherein applied the auxiliary electrode drive signal improperly.
Fig. 9 illustrates the density of the electronics that the electrode drive signal of Fig. 8 produces in discharge space.
Embodiment
Hereinafter will with reference to accompanying drawing describe in detail the plasma display panel with an auxiliary electrode of the present invention with and driving method.
Fig. 4 is the cross-sectional view that has the plasma display panel of auxiliary electrode according to of the present invention.Between X electrode 14 before the discharge sustain electrode just is installed on the substrate 11 and the Y electrode 13 thin auxiliary electrode 20 is housed.Here, the electrostatic capacitance increase that the installation owing to auxiliary electrode 20 is caused is as far as possible little.For this purpose, auxiliary electrode should be thinner.
Designing such auxiliary electrode is in order to help initial discharge.In order to reach this purpose preferably, should control the accumulation of wall electric charge to help beginning discharge.That is to say that auxiliary electrode 20 (electrode C) should be driven, promote discharge so that the wall electric charge is accumulated in the upper surface of insulation course 17.Based on this purpose, the driving pulse of auxiliary electrode (electrode C) should be consistent with the driving pulse on being applied to X electrode or Y electrode, and pulse width should be illustrated in figure 5 as 0.5 μ m.
For example, consistent when the cycle that makes the auxiliary electrode driving pulse with the cycle of the composite pulse (difference between X pulse and the Y pulse) of discharge sustain electrode drive pulse, and when the rising edge of satellite pulse is consistent with the rising edge of X and Y pulse as shown in Figure 5, although the voltage of discharge sustain pulse is reduced to 140V from 160V in time, continuous discharge well still.
Pass in time and still to keep the principle of discharge well as follows.
In general, the time of discharge sustain is about 1 μ m on the surface of discharge type AC plasma display board.In this time period, in first 0.5 μ m, discharge capacity increases; In second 0.5 μ m, discharge capacity reduces.In the 1 μ m time of continuous discharge, in the time period, auxiliary electrode is as positive potential electrode (or negative potential electrode) at first 0.5 μ m; In second 0.5 μ m time period, auxiliary electrode is as negative potential electrode (or positive potential electrode).Therefore, the easier accumulation of wall electric charge.Fig. 7 A is illustrated in the distribution of discharge cell mesospore electric charge in the continuous discharge driving time to Fig. 7 E.
Fig. 7 is illustrated in the distribution of the wall electric charge that forms in the discharge cell in 0 μ s, 0-0.5 μ s, 0.5 μ s and 3 μ s times.Here importantly, change, therefore in Fig. 7 B and Fig. 7 C, be easy to produce discharge in the polarity of the rising edge wall electric charge of satellite pulse.In Fig. 7 E, arrow is represented the movement of electrons route at Fig. 7 A.The heavy line arrow is represented the state of the discharge that at first takes place.The fine line arrow is represented the state of the discharge that the back takes place.Therefore, the state represented of Fig. 7 C occurred in the extremely short time.And, because discharge sustain pulse and auxiliary electrode driving pulse are periodic, repeat continuously to take place, and negative charge and positive charge are with same order conversion by the distribution of the wall electric charge of discharge generation order with Fig. 7 A-Fig. 7 B-Fig. 7 C-Fig. 7 D-Fig. 7 E.That is to say that after Fig. 7 A-Fig. 7 B-Fig. 7 C-Fig. 7 D-Fig. 7 E process, repeat same discharge process, the polarity of Lei Ji wall electric charge changes simultaneously.And, after preferably the process auxiliary drive pulse has rising edge earlier negative edge is arranged.Otherwise discharge can not continue.This is because the cause of the electromotive force situation of addressing pulse.When the electrical potential conditions of addressing pulse is opposite, will obtain opposite result.
Also have, here importantly, the rising edge of satellite pulse can not take place after the rising edge that continues pulse.Otherwise the auxiliary electrode driving pulse just can not improve the main discharge between X electrode and the Y electrode significantly.Therefore, the voltage that just can not reduce the discharge sustain pulse to be producing main discharge, shown in Fig. 8 and experimental result shown in Figure 9.That is to say that as shown in Figure 8, the auxiliary electrode driving pulse is added to auxiliary electrode (C) in the rear section in discharge sustain burst length in the time, opposite with Fig. 6, in Fig. 9, as time goes by, discharge reduces gradually.
As above-mentioned, in the plasma display panel and driving method thereof with auxiliary electrode according to the present invention, in each discharge cell of plasma display panel, thin auxiliary electrode has been installed between X electrode and Y electrode, and the auxiliary electrode driving pulse is added on the auxiliary electrode when being not later than the time that the discharge sustain pulse begins.Therefore, can drop to 20V to the discharge ionization voltage of main discharge.And, owing to might make the discharge period longer in the burst length, therefore can improve brightness in certain discharge sustain.
Claims (6)
1. surface discharge type plasma display panel of alternating current comprises:
That face one another and have one section predetermined distance a preceding substrate and a meron;
The wall that is used to keep the distance between described preceding substrate and the meron and discharge space is provided;
Be installed in the strip discharge sustain electrode pair parallel to each other on the described preceding substrate surface; With
Be installed in the vertical strip data electrode of the lip-deep and described discharge sustain electrode pair of described meron, wherein, each is to being equipped with the auxiliary electrode of a predetermined thickness between the discharge sustain electrode.
2. plasma display panel according to claim 1 is characterized in that, the described thickness of described auxiliary electrode is like this, and it does not increase the electrostatic capacitance of described discharge sustain electrode pair.
3. method that is used to drive plasma display panel, this plasma display board comprises preceding substrate facing one another and have one section predetermined distance and meron, be used to keep described before between substrate and the meron distance and provide discharge space wall, be installed in described before on the substrate surface strip discharge sustain electrode pair parallel to each other be installed in the vertical strip data electrode of the lip-deep and described discharge sustain electrode pair of described meron, wherein, each is to being equipped with the auxiliary electrode of a predetermined thickness between the discharge sustain electrode.This method may further comprise the steps:
Applying an auxiliary electrode driving pulse early than the time point that the discharge sustain pulse is applied to described discharge sustain electrode pair to described auxiliary electrode.
4. method according to claim 3, it is characterized in that, when described discharge sustain pulse is applied on the described discharge sustain electrode pair and discharge when becoming big, described auxiliary electrode driving pulse makes the electromotive force of described auxiliary electrode equal to have in the described discharge sustain electrode pair electromotive force of the electrode of high potential; When discharge reduces, make the electromotive force of described auxiliary electrode equal to have electromotive force than the electrode of low potential.
5. method according to claim 3, it is characterized in that, when described discharge sustain pulse is applied on the described discharge sustain electrode pair and discharge when becoming big, described auxiliary electrode driving pulse makes the electromotive force of described auxiliary electrode equal to have in the described discharge sustain electrode pair electromotive force than the electrode of low potential; When discharge reduces, make the electromotive force of described auxiliary electrode equal to have the electromotive force of the electrode of high potential.
6. plasma display panel according to claim 1 is characterized in that, the rising edge that is applied to a pulse on the described auxiliary electrode is consistent with the rising edge of a lasting pulse on being applied to described discharge sustain electrode pair.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP67289999 | 1999-03-02 | ||
| JP6728/1999 | 1999-03-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1269570A CN1269570A (en) | 2000-10-11 |
| CN1154970C true CN1154970C (en) | 2004-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001067435A Expired - Fee Related CN1154970C (en) | 1999-03-02 | 2000-03-01 | Plasma displaying board with auxiliary electrode and driving method |
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|---|---|
| CN (1) | CN1154970C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW480517B (en) * | 2000-12-29 | 2002-03-21 | Acer Display Tech Inc | Electrode structure of plasma display panel |
| KR100467691B1 (en) * | 2001-11-28 | 2005-01-24 | 삼성에스디아이 주식회사 | Address-While-Display driving method of driving plasma display panel for broadening margin of address voltage |
| KR100589316B1 (en) * | 2004-02-10 | 2006-06-14 | 삼성에스디아이 주식회사 | A plasma display device and a driving method of the same |
| US7279837B2 (en) * | 2004-03-24 | 2007-10-09 | Samsung Sdi Co., Ltd. | Plasma display panel comprising discharge electrodes disposed within opaque upper barrier ribs |
| KR100918413B1 (en) * | 2004-05-18 | 2009-09-24 | 삼성에스디아이 주식회사 | Plasma display panel |
| KR100590088B1 (en) * | 2004-06-30 | 2006-06-14 | 삼성에스디아이 주식회사 | Plasma display panel |
| CN100377188C (en) * | 2004-10-18 | 2008-03-26 | 南京Lg同创彩色显示系统有限责任公司 | Plasma display and its driving method |
| JP5007021B2 (en) | 2004-12-27 | 2012-08-22 | 株式会社日立製作所 | Plasma display panel driving method and plasma display device |
-
2000
- 2000-03-01 CN CNB001067435A patent/CN1154970C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1269570A (en) | 2000-10-11 |
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Granted publication date: 20040623 Termination date: 20100301 |