CN102728524A - Method for spraying fluorescent powder slurry of plasma screen - Google Patents
Method for spraying fluorescent powder slurry of plasma screen Download PDFInfo
- Publication number
- CN102728524A CN102728524A CN2012102196898A CN201210219689A CN102728524A CN 102728524 A CN102728524 A CN 102728524A CN 2012102196898 A CN2012102196898 A CN 2012102196898A CN 201210219689 A CN201210219689 A CN 201210219689A CN 102728524 A CN102728524 A CN 102728524A
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- Prior art keywords
- spraying
- fluorescent powder
- nozzle
- pressure
- preparatory
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Links
- 238000005507 spraying Methods 0.000 title claims abstract description 100
- 239000000843 powder Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000002002 slurry Substances 0.000 title claims abstract description 11
- 239000007921 spray Substances 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 17
- 230000011218 segmentation Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 2
- 230000000977 initiatory effect Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a method for spraying fluorescent powder slurry of a plasma screen, and belongs to the field of preparation of plasma screens. According to the method, a nozzle is involved; the fluorescent powder slurry is sprayed to a cell to be sprayed by a nozzle under the action of spraying pressure during movement; a pre-spraying region and an effective region are formed on the cell to be sprayed when the nozzle moves from a spraying starting position to a spraying finishing position; and the method for spraying the fluorescent powder slurry of the plasma screen is characterized in that the nozzle moves from the spraying starting position to a certain position in the pre-spraying region, then returns to the spraying starting position, and finally moves from the spraying starting position to the spraying finishing position. By the method, the thickness uniformity of the effective region of the spraying can be improved, or the pre-spraying region is reduced under equal uniformity, the effective utilization rate of the light-emitting area of a flat panel display is improved, and a narrow frame is designed.
Description
Technical field
The invention belongs to the PDP display preparation field, relate in particular to the fluorescent powder paste material spraying method.
Background technology
The main manufacturing approach of fluorescent material is to adopt the flush coater spraying on the PDP metacoxal plate at present, and the nozzle on the flush coater has the hole of row's ejection slurry, and corresponding one by one with the cell of needs spraying, the grout material of spraying is filled in the nozzle.When producing automatically, in nozzle, pressurizeing when nozzle moves forward is sprayed in the cell slurry, supplies with slurry by slurry tank to nozzle when returning.Spraying at first; At original position and a segment distance afterwards thereof; Because factor affecting such as slurry rheological characteristic, nozzle translational accelerations, spray volume can produce fluctuation, thereby the fluorescent material near the spraying original position is thick partially easily or thin partially in luminous effective district: initiating terminal fluorescent material is thick partially; To cause that discharge voltage raises, and forms discharge failure; And initiating terminal is prone to luminescence unit lattice fluorescent material disappearance when thin partially.Bad for tackling this; The method that adopts at present is; When product design, after original position, reserve certain spraying area in advance, form a buffer area, make the stage of spray volume fluctuation all be in this preparatory spraying area; Spray the effective coverage of stable stage after then being in, thereby avoid the unfavorable condition of effective coverage.But the headspace that present spraying method needs is bigger, is unfavorable for product design and quality control.
Summary of the invention
The objective of the invention is to: a kind of PDP display fluorescent powder paste material spraying method, improve the effectively thickness evenness in district of spraying, perhaps, improve flat-panel monitor light-emitting area effective rate of utilization being equal to the preparatory spraying area of minimizing under the uniformity, realize narrow frame design.
The object of the invention realizes through following technical proposals:
A kind of PDP display fluorescent powder paste material spraying method; Comprise nozzle; The cell sprayed with fluorescent powder slurry that said nozzle sprays desire under the spray pressure effect in moving process; Said nozzle moves to the spraying end position process from the spraying original position, on the cell of desire spraying, forms preparatory spraying area and effective coverage, and said nozzle moves to a certain position the preparatory spraying area from the spraying original position earlier; Return the spraying original position then, move to the spraying end position from the spraying original position more at last always.
As optimal way, said nozzle is the 30%-90% of preparatory spraying area length range from the distance range that the spraying original position moves to a certain position described in the preparatory spraying area.
As further optimal way, said nozzle carries out segmentation pressure at the spraying initial period to be controlled separately, with preparatory spraying area of further control and effective coverage initiating terminal coating thickness.As optimal way, said segmentation pressure comprises, and first period 0～1 second duration, can be provided with arbitrarily in pressure 0～0.5MPa scope; Second period 0～1 second duration, can be provided with arbitrarily in pressure 0～0.5MPa scope; The 3rd section duration 0～1S can be provided with arbitrarily in pressure 0～0.5MPa scope; The 4th section continues to the spraying end, can be provided with arbitrarily in the pressure 0-0.5MPa scope.
The course of work is: nozzle is driven by crossbeam that loads nozzle and support, drives through linear servo-actuator, through grating chi control range ability.The spraying of fluorescent powder paste material is through compressed air pressurized control in nozzle, and initial spray pressure carries out segmentation pressure and control (as being divided into 3～5 sections) separately, sets control respectively by time, pressure.Adjust initial spray pressure, adopt less spray pressure, make initiating terminal thin slightly partially.Move the distance of setting (30%-90% of spraying area length range in advance) after the spraying beginning forward and return the spraying original position then, move to the spraying end position more forward.
Beneficial effect of the present invention: adopt the method, in the process of nozzle spraying, after the spraying original position, add one section round distance; Under the big or small constant situation of preparatory spraying area; Extraly increased by one times of spraying original position, can spraying non-uniform area influence scope be controlled at preparatory spraying area as far as possible thus, improved that fluorescent powder paste material sprays uniformity in the effective coverage to the distance of turning back a little; Reduce discharge failure, promote product quality; Therefore in addition,, can also the size of preparatory spraying area be reduced, and realize the equal effect of originally bigger preparatory spraying area, reach the purpose of minimizing non-luminous region owing to extraly increased by one times of spraying original position to the distance of turning back a little.
Description of drawings
Fig. 1 is a spraying method principle schematic of the present invention.
The specific embodiment
Following non-limiting examples is used to explain the present invention.
As shown in Figure 1, wherein F is the glass substrate of band desire spray unit lattice, and G is a spray nozzle; A is the spraying original position, and A is preparatory spraying area to B, and B is the effective coverage to D, and E is the spraying end position.
The present patent application method; To increasing a C point between the B, AC can freely set in the 30%-90% scope of preparatory spraying area length range at A, makes nozzle after spraying original position A point runs to the C point, return the A point; Spraying end position E point reruns; Make preparatory spraying area increase by 1 times of AC distance, thereby the preparatory spraying area of spraying is strengthened, improve the spraying uniformity in the effective coverage; Perhaps, improve flat-panel monitor light-emitting area effective rate of utilization, realize narrow frame design being equal to the preparatory spraying area of minimizing under the uniformity.
Embodiment 1:
1, first section spray time is 0.2 second, spray pressure 0.1 MPa; Second section spray time 0.15 second, spray pressure 0.18MPa; The 3rd section spray time 0.25 second, spray pressure 0.26MPa; The 4th section pressure 0.28MPa;
2, preparatory spraying area length (AB) 12mm;
3, spraying beginning back layback (AC) 4mm is 33.3% of preparatory spraying area length (AB);
4, spraying rate 100mm/S.
Embodiment 2:
1, first section spray time is 0.15 second, spray pressure 0.1 MPa; Second section spray time 0.2 second, spray pressure 0.2MPa; The 3rd section spray time 0.2 second, spray pressure 0.26MPa; The 4th section spray pressure 0.28MPa;
2, preparatory spraying area length (AB) 12mm;
3, spraying beginning back layback (AC) 10mm is 83.3% of preparatory spraying area length (AB);
4, spraying rate 100mm/S.
Embodiment 3:
1, first section spray time is 0.25 second, spray pressure 0.1 MPa; Second section spray time 0.15 second, spray pressure 0.2MPa; The 3rd section spray time 0.2 second, spray pressure 0.26MPa; The 4th section spray pressure 0.28MPa;
2, preparatory spraying area length (AB) 12mm;
3, spraying beginning back layback (AC) 6mm is 50% of preparatory spraying area length (AB);
4, spraying rate 100mm/S.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. PDP display fluorescent powder paste material spraying method; Comprise nozzle; The cell sprayed with fluorescent powder slurry that said nozzle sprays desire under the spray pressure effect in moving process; Said nozzle moves to the spraying end position process from the spraying original position, on the cell of desire spraying, forms preparatory spraying area and effective coverage, it is characterized in that: said nozzle moves to a certain position the preparatory spraying area from the spraying original position earlier; Return the spraying original position then, move to the spraying end position from the spraying original position more at last always.
2. PDP display fluorescent powder paste material spraying method as claimed in claim 1 is characterized in that: said nozzle is 30%～90% of a preparatory spraying area length from the distance range that the spraying original position moves to a certain position described in the preparatory spraying area.
3. according to claim 1 or claim 2 PDP display fluorescent powder paste material spraying method is characterized in that: said nozzle applies different spray pressures by different spray time sections to carry out segmentation pressure and controls separately.
4. according to claim 1 or claim 2 PDP display fluorescent powder paste material spraying method is characterized in that: said nozzle applies different spray pressures by different spray time sections to carry out segmentation pressure and controls separately.
5. PDP display fluorescent powder paste material spraying method as claimed in claim 3 is characterized in that: said segmentation pressure is 3 sections and the control of above segmentation pressure.
6. PDP display fluorescent powder paste material spraying method as claimed in claim 4 is characterized in that: said segmentation pressure, first period 0～1 second duration, pressure 0～0.5MPa; Second period 0～1 second duration, pressure 0～0.5MPa; The 3rd period 0～1 second duration, pressure 0～0.5MPa, the 4th section continues to spraying and finishes pressure 0～0.5MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219689.8A CN102728524B (en) | 2012-06-29 | 2012-06-29 | Method for spraying fluorescent powder slurry of plasma screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219689.8A CN102728524B (en) | 2012-06-29 | 2012-06-29 | Method for spraying fluorescent powder slurry of plasma screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102728524A true CN102728524A (en) | 2012-10-17 |
| CN102728524B CN102728524B (en) | 2014-02-12 |
Family
ID=46985228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210219689.8A Expired - Fee Related CN102728524B (en) | 2012-06-29 | 2012-06-29 | Method for spraying fluorescent powder slurry of plasma screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102728524B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147688A (en) * | 1995-05-24 | 1997-04-16 | 松下电器产业株式会社 | Liquid application method and electronic device manufacturing method using the method |
| JP2001162205A (en) * | 1999-12-06 | 2001-06-19 | Matsushita Electric Ind Co Ltd | Ink coating equipment, method for ink coating and method for preparing gas-discharging panel using these |
| JP2002126615A (en) * | 2000-10-19 | 2002-05-08 | Dainippon Printing Co Ltd | Method for ejecting flowable substance and method for forming phosphor by using the same |
| CN1525516A (en) * | 1998-07-08 | 2004-09-01 | ���µ�����ҵ��ʽ���� | Plasma display panel manufacturing method and phosphor ink coating device |
| JP4384294B2 (en) * | 1999-07-06 | 2009-12-16 | リコーマイクロエレクトロニクス株式会社 | Wall forming method and barrier forming method of discharge type display device. |
-
2012
- 2012-06-29 CN CN201210219689.8A patent/CN102728524B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147688A (en) * | 1995-05-24 | 1997-04-16 | 松下电器产业株式会社 | Liquid application method and electronic device manufacturing method using the method |
| CN1525516A (en) * | 1998-07-08 | 2004-09-01 | ���µ�����ҵ��ʽ���� | Plasma display panel manufacturing method and phosphor ink coating device |
| JP4384294B2 (en) * | 1999-07-06 | 2009-12-16 | リコーマイクロエレクトロニクス株式会社 | Wall forming method and barrier forming method of discharge type display device. |
| JP2001162205A (en) * | 1999-12-06 | 2001-06-19 | Matsushita Electric Ind Co Ltd | Ink coating equipment, method for ink coating and method for preparing gas-discharging panel using these |
| JP2002126615A (en) * | 2000-10-19 | 2002-05-08 | Dainippon Printing Co Ltd | Method for ejecting flowable substance and method for forming phosphor by using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102728524B (en) | 2014-02-12 |
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Granted publication date: 20140212 Termination date: 20160629 |
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| CF01 | Termination of patent right due to non-payment of annual fee |