CN103295860A - PDP (plasma display panel) aging method and addressing electrode short-circuit device - Google Patents
PDP (plasma display panel) aging method and addressing electrode short-circuit device Download PDFInfo
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- CN103295860A CN103295860A CN2013102176808A CN201310217680A CN103295860A CN 103295860 A CN103295860 A CN 103295860A CN 2013102176808 A CN2013102176808 A CN 2013102176808A CN 201310217680 A CN201310217680 A CN 201310217680A CN 103295860 A CN103295860 A CN 103295860A
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Abstract
The invention discloses a PDP (plasma display panel) aging method and an addressing electrode short-circuit device, relates to the technical field of PDP production, aims at solving the problem that existing aging technology causes electrode short circuits and bad open circuits easily, and provides a novel aging method capable of effectively reducing the phenomena of the electrode short circuits and the open circuits in the process of aging of PDPs and a tool used in the method. The PDP aging method is technically characterized by including the steps: enabling addressing electrodes of a PDP to be in a short circuit, applying aging waveforms on scanning electrodes and maintaining electrodes, and the like.
Description
Technical field
The present invention relates to PDP screen (being PDP display) production technical field, especially a kind of method and employed frock of PDP screen ageing.
Background technology
Existing P DP screen ageing only screen keep electrode and scan electrode applies certain ageing waveform, addressing electrode is unsettled, as Fig. 1, but such ageing method is generating electrodes short circuit or short circuit very easily, electric pole short circuit is main one of bad in the present PDP production process with opening circuit bad, is the bottleneck of quality-improving in the present stage PDP manufacture process.
Summary of the invention
The objective of the invention is the problem at above-mentioned existence, provide a kind of and can effectively reduce electric pole short circuit and the new method of aging of breaking phenomena and the frock that uses thereof in the PDP screen ageing process.
The invention provides a kind of PDP screen ageing method, be included in scan electrode and keep the step that applies the ageing waveform on the electrode; Also be included in and apply before the ageing waveform step that each addressing electrode with the PDP screen is shorted together.
Preferably, use metal web that addressing electrode is carried out short circuit.
The present invention also provides a kind of addressing electrode short-circuit device for PDP screen ageing, comprises seasoned pallet and pressure head trunk; Ageing pallet and pressure head trunk flexibly connect by hinge;
The ageing pallet is provided with limit element, is used for the fixedly position of PDP screen;
The pressure head trunk is provided with the trunk groove, and several short circuit bars distribute and are fixed in the trunk groove by several elastomeric elements; And the short circuit bar equates to hinge central shaft distance with PDP screen its addressing electrode after the ageing pallet is in place to the distance of hinge central shaft;
Short circuit bar, flexible member and pressure head trunk all can conduct electricity.
Preferably, also comprise the contact head that equates with short circuit bar quantity, contact head also can conduct electricity; Described each contact head is fixed in the trunk groove by each described elastomeric element; Contact head is provided with the contact head groove, and the short circuit bar is connected in the contact head groove.
Preferably, towards the one side of ageing pallet protruding setting element is set at described pressure head trunk, ageing pallet position corresponding with setting element on the one side of pressure head trunk is provided with location notch.
Preferably, in the described location notch magnet is set, setting element is iron plate or magnet.
Preferably, described each short circuit bar is to be enclosed with the conductive silicon adhesive tape of metal web or is the conductive silicon adhesive tape that is enclosed with conductive fabric.
In sum, owing to adopted technique scheme, the invention has the beneficial effects as follows:
Addressing electrode is carried out short circuit in the ageing process; by in and the quantity of electric charge in each discharge cell in the PDP screen; make the quantity of electric charge that the opposite quantity of electric charge, the size of each unit positive-negative polarity differs bigger in the screen finally reach purpose relatively uniformly; thereby eliminate front and rear panel voltage condition with higher in indivedual discharge cell lattice; reduce the dielectric breakdown probability of happening, finally reach the effect of guard electrode.
Short-circuit device provided by the invention can effectively improve the operating efficiency of ageing.
Description of drawings
The present invention will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is existing ageing technical operation principle of equal effects schematic diagram.
Fig. 2 is PDP screen basic structure schematic diagram.
Fig. 3 is PDP screen equivalent circuit diagram.
Fig. 4 is the ageing oscillogram.
Fig. 5 is scan electrode, keep the electrostatic induction phenomenon schematic diagram between electrode and the addressing electrode.
Fig. 6 is electric charge accumulation schematic diagram in the cell.
Fig. 7 is short circuit addressing electrode principle of equal effects schematic diagram in the inventive method.
Fig. 8 is short-circuit device first embodiment.
Fig. 9 is pressure head trunk and short circuit bar structural representation.
Mark among the figure: 1 is front glass panel; 2 is the back glass plate; 3 is spaced walls; 4 is scan electrode; 5 for keeping electrode; 6 is fluorescent material; 7 is inert gas; 8 is addressing electrode; 9 is the ageing pallet; 10 is setting element; 11 is the short circuit bar; 12 is flexible member; 13 is the trunk groove; 14 is the pressure head trunk; 15 is hinge; 16 is contact head; 17 is location notch.
Embodiment
Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
Before introducing technical solution of the present invention, need setting forth earlier, existing P DP shields the reason that ageing method causes electric pole short circuit easily or opens circuit.
As shown in Figure 2, comprise front glass panel 1, back glass plate 2 at a PDP screen, between the glass plate of front and back, form certain space, this space is divided into several unit by some spaced walls 3, scan electrode 4 is set above each cell, keeps electrode 5, at scan electrode 4 and to keep electrode 145 ~ 150 μ m below 5 are addressing electrodes 8, also be filled with fluorescent material 6 and inert gas 7(neon and xenon in the cell).
During ageing, at scan electrode and keep electrode and apply the ageing waveform, as Fig. 4, at scan electrode and keep and be applied with 30kHz between the electrode, the alternating current of 200 ~ 300V, and scan electrode and keep and alternately apply voltage on the electrode, when the voltage on the scan electrode reached 200 ~ 300V, the voltage of keeping on the electrode was 0.Circuit model when Fig. 3 discharges for cell of PDP screen, Cfd is prebasal plate medium equivalent capacity among the figure, and Cbr is the spaced walls equivalent capacity, and Crd is metacoxal plate medium equivalent capacity, Cglass is back glass plate equivalent capacity, and Cplate is ageing tray surface equivalent capacity.During ageing, discharge in the cell, addressing electrode is wrapped up fully by metacoxal plate medium RD and back glass plate (rear glass) except bottom (pad portion), is state of insulation.At this moment, scan electrode, keep between electrode and the addressing electrode electrostatic induction phenomenon that can occur as shown in Figure 4, make original unsettled addressing electrode stored charge.
During the electric charge bulk deposition, can form potential difference Δ V thus, as Fig. 6.By Δ V=Q/C as can be known, the quantity of electric charge Q of accumulation is more big, and the static capacity C of metacoxal plate medium is more little, and then Δ V is just more big.The quantity of electric charge of piling up is more, and the static capacity of metacoxal plate medium can form higher potential difference Δ V in less position in the part.When reaching to bear the proof voltage threshold value above the metacoxal plate medium time, just form by destroying also.When metacoxal plate medium RD occurring and destroy, the discharge of face electrode in front of the heat of generation and electric current can cause (scan electrode with keep electrode), the voltage that form this moment can cause prebasal plate medium FD to puncture also to take place in the lump.Part cell internal cause accumulated voltage is too high prebasal plate medium FD is punctured back sparking electrode (scan electrode with keep electrode) thus lose media protection when discharge with electrode damage, finally show electric pole short circuit and the bad phenomenon that opens circuit.
In order to address this problem, the invention provides a kind of new PDP screen ageing method, be included in scan electrode and keep the step that applies the ageing waveform on the electrode; Also be included in and apply before the ageing waveform step that each addressing electrode with the PDP screen is shorted together, as Fig. 7.As preferred embodiment, adopt metal web that addressing electrode is carried out short circuit.
For a kind of like this ageing method being used efficiently and producing, the present invention also provides a kind of short-circuit device, as Fig. 8, comprise seasoned pallet 9 and pressure head trunk 14; Ageing pallet 9 and pressure head trunk 14 flexibly connect by hinge 15; Ageing pallet 9 is provided with limit element, is used for the fixedly position of PDP screen.Limit element can be arranged on limit or the right angle of the projection on the pallet, is used for the PDP screen is positioned.
The pressure head trunk is provided with trunk groove 13, several short circuit bars 11(in general addressing electrode exit of PDP screen is 12, and be arranged in a linear on one side of screen, corresponding, short circuit bar quantity is 12) corresponding several elastomeric elements 12 that pass through are fixed in the groove 13.Short circuit bar 11 equates to hinge central shaft distance with PDP screen its addressing electrode after ageing pallet 9 is in place to the distance of hinge 15 central shafts.Elastomeric element 12 can be spring or shell fragment.Wherein, short circuit bar, elastomeric element and pressure head trunk are electric conducting material and make.
During ageing, the PDP screen is placed on the ageing pallet, after having good positioning, pressure head trunk 14 is pressed down, and addressing electrode is electrically connected with the short circuit rod guidance.In the ageing process, the addressing electrode charges accumulated derives by short circuit bar, elastomeric element and pressure head trunk.
Preferably, the short circuit bar is to be enclosed with the conductive silicon adhesive tape of metal web or is the conductive silicon adhesive tape that is enclosed with conductive fabric.Because the silica gel strip softness, not only can play the effect of guard electrode but also can play the effect of conduction.
In another embodiment, the contact head that equates with short circuit bar quantity can also be set, contact head is also made for electric conducting material, and preferred, the contact head material is identical with the material of pressure head trunk.Each contact head 16 is fixed in the trunk groove 13 by conductive elastic component, and contact head 16 is provided with the contact head groove, and short circuit bar 11 is connected in the contact head groove. Short circuit bar 11 and 16 detachable connections of contact head are convenient to maintenance.
Further, can towards the one side of ageing pallet setting element 10 be set at pressure head trunk 14, ageing pallet 9 position corresponding with setting element 10 on the one side of pressure head trunk 14 is provided with location notch 17, in the location notch 17 magnet is set, and setting element 10 is iron plate or magnet etc.The purpose of She Zhiing is like this, when needs carry out short circuit to addressing electrode, the pressure head trunk is pressed down, and setting element 10 and location notch 17 adhesives, pressure head trunk and ageing pallet can better be fitted, and have guaranteed that further the short circuit bar fully contacts with addressing electrode.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (7)
1. a PDP screen ageing method is included in scan electrode and keeps the step that applies the ageing waveform on the electrode; It is characterized in that, before applying the ageing waveform, also comprise the step that each addressing electrode with PDP screen is shorted together.
2. method according to claim 1 is characterized in that, uses metal web that addressing electrode is carried out short circuit.
3. an addressing electrode short-circuit device that is used for PDP screen ageing is characterized in that, comprises seasoned pallet and pressure head trunk; Ageing pallet and pressure head trunk flexibly connect by hinge;
The ageing pallet is provided with limit element, is used for the fixedly position of PDP screen;
The pressure head trunk is provided with the trunk groove, and several short circuit bars distribute and are fixed in the trunk groove by several elastomeric elements; And the short circuit bar equates to hinge central shaft distance with PDP screen its addressing electrode after the ageing pallet is in place to the distance of hinge central shaft;
Short circuit bar, flexible member and pressure head trunk all can conduct electricity.
4. device according to claim 3 is characterized in that, also comprises the contact head that equates with short circuit bar quantity, and contact head also can conduct electricity; Described each contact head is fixed in the trunk groove by each described elastomeric element; Contact head is provided with the contact head groove, and the short circuit bar is connected in the contact head groove.
5. device according to claim 4 is characterized in that, towards the one side of ageing pallet protruding setting element is set at described pressure head trunk, and ageing pallet position corresponding with setting element on the one side of pressure head trunk is provided with location notch.
6. device according to claim 5 is characterized in that, in the described location notch magnet is set, and setting element is iron plate or magnet.
7. according to any described device in the claim 3 ~ 6, it is characterized in that described each short circuit bar is to be enclosed with the conductive silicon adhesive tape of metal web or is the conductive silicon adhesive tape that is enclosed with conductive fabric.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102176808A CN103295860A (en) | 2013-06-04 | 2013-06-04 | PDP (plasma display panel) aging method and addressing electrode short-circuit device |
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| CN2013102176808A CN103295860A (en) | 2013-06-04 | 2013-06-04 | PDP (plasma display panel) aging method and addressing electrode short-circuit device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531416A (en) * | 2013-10-25 | 2014-01-22 | 四川虹欧显示器件有限公司 | Device for eliminating residual wall charges of PDP (plasma display panel) screen |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002313235A (en) * | 2001-04-17 | 2002-10-25 | Nec Corp | Aging tray for plasma display panel |
| CN1706021A (en) * | 2003-06-18 | 2005-12-07 | 松下电器产业株式会社 | Method for manufacturing plasma display panel |
| JP2007012301A (en) * | 2005-06-28 | 2007-01-18 | J Macc Co Ltd | Aging method and aging device of gas discharge panel |
-
2013
- 2013-06-04 CN CN2013102176808A patent/CN103295860A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002313235A (en) * | 2001-04-17 | 2002-10-25 | Nec Corp | Aging tray for plasma display panel |
| CN1706021A (en) * | 2003-06-18 | 2005-12-07 | 松下电器产业株式会社 | Method for manufacturing plasma display panel |
| JP2007012301A (en) * | 2005-06-28 | 2007-01-18 | J Macc Co Ltd | Aging method and aging device of gas discharge panel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531416A (en) * | 2013-10-25 | 2014-01-22 | 四川虹欧显示器件有限公司 | Device for eliminating residual wall charges of PDP (plasma display panel) screen |
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Application publication date: 20130911 |