CN1153243C - Exhaust sealing method for plasma display panel - Google Patents
Exhaust sealing method for plasma display panel Download PDFInfo
- Publication number
- CN1153243C CN1153243C CNB991036255A CN99103625A CN1153243C CN 1153243 C CN1153243 C CN 1153243C CN B991036255 A CNB991036255 A CN B991036255A CN 99103625 A CN99103625 A CN 99103625A CN 1153243 C CN1153243 C CN 1153243C
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- Prior art keywords
- panel
- core pipe
- exhaust
- chamber
- car
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- Expired - Fee Related
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- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Gas-Filled Discharge Tubes (AREA)
Abstract
The present invention provides an exhaust sealing method for a plasma display panel, which is capable of uniformly heating and cooling a panel. The present invention comprises that a plurality of integrally packaged panels with core pipes are held on an exhaust vehicle according to a certain interval in a basically vertical state, a vacuum exhaust system and a discharge gas supply system are connected with the core pipes in a changeable mode, and the panels with core pipes are positioned in a furnace; circular gas passes through the gaps among the integrally packaged panels with core pipes along single direction, and the gas is heated, cooled and exhausted; after the discharge gas is fed into each panel, each core pipe is sealed.
Description
Technical field
The present invention relates to the exhaust sealing method of plasma display panel.
Background technology
In the past in the manufacture process of plasma display panel, be included in watch crystal and the integrated back of back side glass substrate encapsulation that has the core pipe are carried out the operation of vacuum exhaust, discharge gas enclosed panel inside after vacuum exhaust to predetermined pressure (400-600 torr) and after this with the operation of core duct occlusion the inside that this has the panel of core pipe by the core pipe.
And, especially to handle be to make the vacuum pumping hardware driving that is connected with the core pipe after being heated to the pump-down process temperature in the batch-type exhaust furnace that a plurality of panels that have the core pipe are packed into and with the above-mentioned panel that has the core pipe in vacuum exhaust, thereby carry out vacuum exhaust in the above-mentioned panel that has a core pipe.In addition, encapsulation process then is after the panel that stops above-mentioned vacuum pumping hardware thereafter and will have a core pipe is cooled to predetermined temperature (40-50 ℃), a certain amount of discharge gas is supplied with in the panel that has the core pipe by above-mentioned core pipe after with the core duct occlusion.
Yet, in above-mentioned processing method, having the heating of panel of core pipe or cooling system blows to hot blast or cold wind by circulating fan and carries out between a plurality of panels that have a core pipe, but normally supply with hot blast or cold wind, and the circulating fan of the furnace roof portion by being arranged on exhaust furnace is attracted to the top and forms circulation from the both sides, below of the panel that has the core pipe.Therefore, the hot blast of supplying with from both sides (cold wind) is in the central portion conflict of the panel that has the core pipe, and the panel that has the core pipe can't heat comprehensively equably, exists the panel that has the core pipe easily to produce the problem of breakage or distortion.
In addition, make the panel that has the core pipe in the continuous oven of forming by intensification band, heating tape, salband, move and carry out the method for above-mentioned operation successively in addition, but owing to the heating or the cooling means of the panel that has the core pipe are same as described above, so exist and above-mentioned same problem.
Summary of the invention
Therefore, the object of the present invention is to provide and a kind ofly can make the panel exhaust sealing method of the plasma display panel of heating and cooling equably.
For realizing above purpose, first scheme of the present invention is: the incorporate panel that has the core pipe of a plurality of encapsulation is remained on the exhaust car with basic plumbness at regular intervals, and when vacuum pumping system switchably being connected with each core pipe with the discharge gas feed system and making the incorporate panel that has the core pipe of these a plurality of encapsulation be positioned at stove, one side make recyclegas along folk prescription to the space between the incorporate panel that has a core pipe by above-mentioned a plurality of encapsulation, one side heats and cools off and carry out pump-down process, after pump-down process, discharge gas is conducted in each panel, thereafter with each core duct occlusion.
In addition, alternative plan of the present invention is: the incorporate panel that has the core pipe of a plurality of encapsulation is remained on the exhaust car with basic plumbness under the situation of carrying direction at regular intervals on the plane of this each panel, and when vacuum pumping system switchably being connected with each core pipe with the discharge gas feed system and making the incorporate panel that has the core pipe of these a plurality of encapsulation be positioned at stove, make above-mentioned exhaust workshop have a rest mobile, and one side make recyclegas along folk prescription to the space between the incorporate panel that has a core pipe by above-mentioned a plurality of encapsulation, one side heats and cools off and carry out pump-down process, after pump-down process, discharge gas is conducted in each panel, thereafter with each core duct occlusion.
Description of drawings
Fig. 1 is the profile of first example of the exhaust sealing equipment of expression enforcement plasma display panel of the present invention.
Fig. 2 is the intensification chamber of Fig. 1 and the profile of heating chamber.
Fig. 3 has the panel of core pipe and the plane graph of spray nozzle part relation for expression.
Fig. 4 is the plane graph that the exhaust car of the panel that has the core pipe is installed.
Fig. 5 is exhaust furnace and the heating curves that has the panel of core pipe.
Fig. 6 is the profile of second example of the exhaust sealing equipment of expression enforcement plasma display panel of the present invention.
Fig. 7 is exhaust furnace and the heating curves that has the panel of core pipe.
Fig. 8 is the profile of the 3rd example of the exhaust sealing equipment of expression enforcement plasma display panel of the present invention.
Fig. 9 is the profile of Fig. 8.
Embodiment
First example of the present invention below is described with reference to the accompanying drawings.
Fig. 1-4 expression is used for implementing exhaust sealing equipment of the present invention continuously, and this equipment is made up of exhaust furnace T and a plurality of exhaust car 10 haply.
Above-mentioned exhaust furnace T has peristome 8 on the total length of siege, simultaneously by each intermediate door D
1, D
2Intensification chamber A, the heating chamber B and the C of cooling chamber that separate and form.In addition, by intermediate door D
3Above-mentioned intensification chamber A is further divided into the first intensification chamber A
1With the second intensification chamber A
2, by intermediate door D
4The above-mentioned C of cooling chamber is further divided into first C of cooling chamber
1With second C of cooling chamber
2
And, as shown in Figure 2, intensification chamber A and heating chamber B are provided with in stove in the circulation Muffle furnace 1, in circulation canal 2, dispose the thermal source 3 of radiation pipe burner or electrothermal heater etc., furnace gas flows into space between following a plurality of panel W that has a core pipe equably because of the cowling panel 7 of circulating fan 4 through having through hole 7a from the top, and from the opening 6 of being located at circulation Muffle furnace 1 bottom to above-mentioned circulation canal 2, undertaken circulating in the stove by being attracted to circulating fan 4 after thermal source 3 heating.In addition, E is the door of packing into, and F is for extracting door out.
Also have, as shown in Figure 3, the opening 6 of circulation Muffle furnace 1 bottom is arranged on the below of circulation Muffle furnace 1 at regular intervals along the furnace superintendent direction.
In addition, among the above-mentioned C of cooling chamber, on the thermal source 3 of intensification chamber A and heating chamber B, be designed so that cooling air supply pipe P
1Be communicated with near the circulation canal 2 the circulating fan 4, and make blast pipe P
2Be communicated with the top in the circulation Muffle furnace 1, other structure is then identical with heating chamber B with above-mentioned intensification chamber A.
Shown in Fig. 2,4, exhaust car 10 ties up to track R under the siege of the exhaust furnace T that is laid in and goes up intermittently and move, the peristome 8 of the top and exhaust furnace T of exhaust car 10 connects, and is equipped with a plurality of installing components of being made up of pillar 11a that is positioned at stove and holding member 11b that the following panel W that has the core pipe is kept at the stove cross direction with basic plumbness 11.In addition, the heat insulating member 12 that on the total length that is included in exhaust car 10 on the pillar 11a of this installing component 11, has above-mentioned peristome 8 and some spaces and cover.
And in the exhaust car 10 and be equipped with vacuum pumping system with vacuum exhaust pump 14 and have the discharge gas feed system of discharge gas high-pressure gas cylinder 15, both are connected with pipe joint 18 with electromagnetic type open and close valve 17 by electromagnetic type open and close valve 16a, 16b.And, also comprise the closed heater 19 that the following core pipe Wa that has the panel W of core pipe is fused in the exhaust car 10.
The above-mentioned panel W system that has a core pipe has certain intervals with watch crystal substrate and the back side glass substrate that core pipe Wa is installed in advance and carries out bonding integratedly at its periphery, and is installed on the above-mentioned installing component 11 of exhaust car 10.
As shown in Figure 4, in this case, for making core pipe Wa pass the through hole of being located in the heat insulating member 12 13, the panel W that has a core pipe by for example not shown clamping device etc. suitably means be fixed on the installing component 11 and with basic plumbness along stove cross direction (overall width direction) at regular intervals mounting fixing in, core pipe Wa is connected with pipe joint 18.In addition, closed heater 19 is installed to the stove outside of core pipe Wa portion.
The below operation of the panel exhaust sealing equipment that has the core pipe of explanation said structure.
At first make the exhaust car 10 that does not carry the sky of the panel W that has the core pipe be positioned at the whole zone of stove, at each D
1-D
4, under the E, F closed condition, each chamber A, B, C are maintained the first intensification chamber A as shown in Figure 5
1Be 250 ℃, the second intensification chamber A
2Be 350 ℃, first C of cooling chamber
1Be 300 ℃, second C of cooling chamber
2It is 150 ℃.
, will extract a door F open thereafter, and with second C of cooling chamber
2To extract a door F when interior exhaust car 10 is extracted out outside stove out closes.Then will distinguish first C of cooling chamber
1With second C of cooling chamber
2Intermediate door D
4Open, and with first C of cooling chamber
1 Interior exhaust car 10 is to second C of cooling chamber
2When moving with intermediate door D
4Close.Thereafter, with the intermediate door D before and after the heating chamber B
1, D
2Open, and make the second intensification chamber A
2In exhaust car 10 and exhaust car 10 pitch of advancing in the heating chamber B, first exhaust car 10 in making heating chamber B is positioned at first C of cooling chamber
1The time with intermediate door D
1, D
2Close respectively, meanwhile, will distinguish the first intensification chamber A
1With the second intensification chamber A
2Intermediate door D
3Open, and with the first intensification chamber A
1 Interior exhaust car 10 moves to the second intensification chamber A
2In.Move finish after with intermediate door D
3Close, open the exhaust car 10 of packing an E into and will be equipped with the panel W that the has the core pipe first intensification chamber A that packs into
1In, an E that will pack into then closes.
After this repeat aforesaid operations, the exhaust car 10 that will be equipped with the panel W that has the core pipe is successively packed into and is extracted out and carry out pump-down process.
That is, pack in the stove, open and close valve 16a, 17 is opened respectively and in respectively having the panel W of core pipe, be communicated with vacuum exhaust pump 14 in case will be equipped with the exhaust car 10 of the panel W that has the core pipe.The panel W that respectively has a core pipe in exhaust furnace T by during carry out preheating, heating and slow cooling according to heating curves shown in Figure 5, when two glass substrates produce gas, make the panel W that has the core pipe be vented to 10
-4-10
-7Torr is also discharged outside stove.
Yet, as shown in Figure 1, the heat insulating member 12 of exhaust car 10 and pack into an E, intermediate door D
1-D
4, extract a door F out and join, and each heat insulating member 12 joins in heating chamber B.At last, owing to peristome 8 lockings in the siege that will be located at exhaust furnace T by the heat insulating member 12 of each exhaust car 10, go in the stove so can prevent outer gas cut.
In addition, in each chamber since recyclegas by cowling panel 7 homogenizing and having between the panel W of core pipe and evenly flow, by opening 6 to the top of circulation canal 2 flow, thereby the panel W that will have a core pipe heats equably or cools off thereafter and from the below of the panel W that has the core pipe.
Especially, in above-mentioned example, for the panel W that has the core pipe being cooled off equably, cooling air is supplied near the of circulating fan 4 and stirred and evenly heating by circulating fan 4 by the C of cooling chamber.
And for prevent the furnace temperature instability as far as possible, circulating fan 4 is preferably in exhaust car 10 moving process and stops.
And, after the above-mentioned panel W that has the core pipe being taken out of to stove as by closing open and close valve 16a when stopping vacuum exhaust pump 14 and opening open and close valve 16b, from discharge gas high-pressure gas cylinder 15 will for example neon (Ne), argon (Ar) or xenon discharge gass such as (Xe) be charged to authorized pressure (400-760 torr) and be sealed in the panel, sealing is in case finish, promptly closed heater 19 energisings with core pipe Wa sealing, are promptly become predetermined plasma display panel.
Though in above-mentioned example, intensification chamber A and the C of cooling chamber constitute each Room 2, also can constitute each Room 1 as shown in Figure 6.
In this case, be located at peristome 8 in the siege of intensification chamber A and the C of cooling chamber shown in imaginary line among Fig. 2 like that by opening and closing with the insulated door 9a of oil cylinder 9b driving.Other structure is then identical with above-mentioned first example.
During operation, the empty exhaust car 10 of configuration in intensification chamber A and heating chamber B is at first driving oil cylinder 9b and cutting out pack into an E, intermediate door D when insulated door 9a carries out locking to the peristome 8 of the C of cooling chamber
1, D
2With an extraction door F.And as shown in Figure 7, maintaining intensification chamber A is 300 ℃, and heating chamber B is 350 ℃, and the C of cooling chamber is 300 ℃.
In case each chamber A, B, C are maintained said temperature, with intermediate door D
1, D
2Open respectively with insulated door 9a and make exhaust car in intensification chamber A and the heating chamber B 1 pitch of advancing, the exhaust car 10 of the front of heating chamber B arrives among the C of cooling chamber in case the exhaust car 10 of intensification chamber A arrives among the heating chamber B, then closes intermediate door D
1, D
2
An E that then will pack into opens, and packs among the A of intensification chamber in case will be equipped with the exhaust car 10 of the panel W that has the core pipe, then makes intensification chamber A be warmed up to 350 ℃ from 300 ℃ when closing an E that packs into.
And, after intensification chamber A is warmed up to 350 ℃ as previously mentioned, in case, promptly open and extract door F out and, open intermediate door D as previously mentioned with 10 extractions of exhaust car through predetermined soaking time
1, D
2With insulated door 9a, exhaust car in making intensification chamber A and heating chamber B advances after 1 pitch, and A is cooled to 300 ℃ once more with the intensification chamber, makes entering of next exhaust car 10 become possibility, by repeating aforementioned operation, make the exhaust car 10 of the panel W that has the core pipe be positioned at heating chamber B later on.
Transit to routine operation by this way, in case top exhaust car 10 moves to the C of cooling chamber in the heating chamber B, promptly from cooling air supply pipe P
1Make air import the C of cooling chamber and be cooled to 180 ℃, arrive 180 ℃ and behind predetermined soaking time, open and extract door F out and exhaust car 10 extractions of the C of cooling chamber at the C of cooling chamber.
Then will extract door F and insulated door 9a out and close, and the C of cooling chamber will be warming up to 300 ℃ once more, and make entering of next exhaust car 10 become possibility.
As mentioned above.In case exhaust car 10 is extracted out from the C of cooling chamber, similarly stop vacuum exhaust pump 14 with aforementioned first example thereafter, charge into discharge gas and carry out the sealing processing of core pipe Wa.
In addition, be cooled to again in 300 ℃ after 300 ℃ are warming up to 350 ℃ in temperature intensification chamber A, be warming up to 300 ℃ again after the temperature of the C of cooling chamber is cooled to 180 ℃ from 300 ℃, because intensification chamber A and the C of cooling chamber respectively are a Room, do to prevent that the panel W that has the core pipe from changing damaged because of temperature is fierce like this.
Though above-mentioned each example all adopts exhaust car 10 is intermittently moved to walk mode certainly, also can adopt the propeller mode.
Though above-mentioned each example is the article on plasma display device panel and handles continuously, shown in Fig. 8,9, also can adopt batch-type to handle.That is, T is the batch-type exhaust furnace among the figure, when having overhead door G in front, and siege and the above-mentioned peristome 8 that is provided with equally.In addition, the cross section is crossed over above-mentioned peristome 8 shapes with its opening for the circulation Muffle furnace 1 of コ font roughly and is fixed and be arranged on the siege in stove, and the cowling panel 7 with a plurality of through hole 7a is set in a sidewall of this circulation Muffle furnace 1.On the other hand, the opposite side opening is for relative near the attraction mouth 4a direction that is installed in the circulating fan 4 in the furnace wall.
Other structure is same as described above, so to adopting prosign with a part, explanation is omitted.In addition, the heat insulating member of exhaust car 10 12 is for be positioned at siege following time when exhaust car 10, with the peristome 8 and the comprehensive locking of overhead door G of siege.
Owing to adopt said structure, remain on the approximate vertical state at certain intervals under the state of the direct of travel (carriage direction that has the panel W of core pipe) that outside stove, is exhaust car 10 on its plane with a plurality of panel W that have the core pipe, make exhaust car 10 move and be positioned under the siege of exhaust furnace T ' along track R, and with heat insulating member 12 with peristome 8 lockings of siege in overhead door G locking, the panel W that has the core pipe is carried out heating and cooling and carries out pump-down process same as described abovely, discharge gas supplied with the panel W that respectively have core pipe in after core pipe Wa sealed thereafter.
In this form, because the gas in the stove flows and is attracted to circulate by circulating fan 4 from a plurality of hole 7a of cowling panel 7 along a direction by the space between a plurality of panel W that have a core pipe, so can carry out heating and cooling comprehensively, equably to the panel W that has the core pipe.
As mentioned above, adopt the present invention because the incorporate panel that has the core pipe of a plurality of encapsulation remains on the approximate vertical state at certain intervals and enters in the stove, and hot blast or cold wind will have the panel heating and cooling of core pipe by the space between a plurality of panels that have a core pipe along a direction.Therefore, because can be, so can when carrying out correct temperature treatment, prevent to have panel damaged of core pipe and be out of shape to the two sides heating and cooling equably of the panel that has the core pipe.
Claims (2)
1. the exhaust sealing method of a plasma display panel, it is characterized in that, may further comprise the steps: the incorporate panel that has the core pipe of a plurality of encapsulation is remained on the exhaust car with basic plumbness at regular intervals, and when vacuum pumping system switchably being connected with each core pipe with the discharge gas feed system and making the incorporate panel that has the core pipe of these a plurality of encapsulation be positioned at stove, one side make recyclegas along folk prescription to the space between the incorporate panel that has a core pipe by above-mentioned a plurality of encapsulation, one side heats and cools off and carry out pump-down process, after pump-down process, discharge gas is conducted in each panel, thereafter with each core duct occlusion.
2. exhaust sealing method as claimed in claim 1 is characterized in that, the plane of each panel is towards the carrying direction of described exhaust car, and described exhaust car is intermittently to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991036255A CN1153243C (en) | 1999-03-01 | 1999-03-01 | Exhaust sealing method for plasma display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991036255A CN1153243C (en) | 1999-03-01 | 1999-03-01 | Exhaust sealing method for plasma display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1265516A CN1265516A (en) | 2000-09-06 |
| CN1153243C true CN1153243C (en) | 2004-06-09 |
Family
ID=5271366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991036255A Expired - Fee Related CN1153243C (en) | 1999-03-01 | 1999-03-01 | Exhaust sealing method for plasma display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1153243C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728144B (en) * | 2009-07-02 | 2011-09-14 | 四川虹欧显示器件有限公司 | Cooling system for plasma display sealing-in exhaust furnace |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004047432A (en) * | 2002-04-04 | 2004-02-12 | Matsushita Electric Ind Co Ltd | Method of manufacturing plasma display panel |
| JP3920227B2 (en) * | 2002-08-02 | 2007-05-30 | 中外炉工業株式会社 | Panel transport exhaust cart for flat panel manufacturing equipment |
| JP5068924B2 (en) * | 2004-02-20 | 2012-11-07 | 中外炉工業株式会社 | Continuous sealing processing furnace and sealing processing method for glass panel assembly |
| KR100846584B1 (en) * | 2005-02-05 | 2008-07-16 | 삼성에스디아이 주식회사 | Structure of protective tip for exhaust pipe, and plasma display module comprising the same |
| CN102117893B (en) * | 2010-12-01 | 2012-07-04 | 东莞宏威数码机械有限公司 | Vacuum heating degassing treatment equipment |
| CN103500694A (en) * | 2013-09-26 | 2014-01-08 | 四川虹欧显示器件有限公司 | PDP (Plasma Display Panel) screen gas charging method and PDP screen based on same |
-
1999
- 1999-03-01 CN CNB991036255A patent/CN1153243C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728144B (en) * | 2009-07-02 | 2011-09-14 | 四川虹欧显示器件有限公司 | Cooling system for plasma display sealing-in exhaust furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1265516A (en) | 2000-09-06 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040609 Termination date: 20120301 |