CN101592586A - A kind of method of testing of performance of resisting vacuum ultraviolet deterioration of fluorescent powder and proving installation - Google Patents
A kind of method of testing of performance of resisting vacuum ultraviolet deterioration of fluorescent powder and proving installation Download PDFInfo
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- CN101592586A CN101592586A CNA2009100231607A CN200910023160A CN101592586A CN 101592586 A CN101592586 A CN 101592586A CN A2009100231607 A CNA2009100231607 A CN A2009100231607A CN 200910023160 A CN200910023160 A CN 200910023160A CN 101592586 A CN101592586 A CN 101592586A
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Abstract
The present invention relates to vacuum ultraviolet-excited field, relate in particular to the method for testing of the anti-vacuum ultraviolet optical property of plasma panel fluorescent powder, step following 1) fluorescent powder is pressed on the trough of belt glass sheet, be placed in the glass discharge vessel; 2) metal electrode is attached on the glass discharge vessel outer wall; 3) glass discharge vessel is vacuumized, seal after charging into inert gas; 4) high-frequency ac voltage is added on the metal electrode, adjusts the discharge of voltage excited inert gas, excitated fluorescent powder is luminous; 5) aging in glass discharge vessel.Proving installation, comprise, glass discharge vessel, metal electrode, high-frequency and high-voltage power supply is provided with fluorescent powder in the groove of trough of belt glass sheet, be placed in the glass discharge vessel, metal electrode is arranged on the outer wall of glass discharge vessel, and electrode connects high-frequency and high-voltage power supply, is provided with admission line and gas exhaust duct respectively at the both ends of glass discharge vessel.The present invention can finish the test to the anti-vacuum-ultraviolet light deteriorate performance of PDP fluorescent powder quickly and easily.
Description
Technical field
The present invention relates to vacuum ultraviolet-excited field, relate in particular to the method for testing and the proving installation of the anti-vacuum-ultraviolet light deterioration condition of plasma panel PDP fluorescent powder.
Background technology
At present, plasma panel (Plasma Display Panel) the anti-vacuum-ultraviolet light deterioration of fluorescent powder test aspect is to use standard 147nm illuminator direct excitated fluorescent powder in vacuum system mostly, carries out anti-vacuum-ultraviolet light deterioration test.Also having method is to make a kind of VUV lamp, its principle is to copy gas discharge principle, utilize the fluorescent tube manufacture craft, in glass discharge vessel, insert two reciprocity electrodes, charge into inert gas in pipe, sealing-in then adds voltage for the electrode two ends, thereby make noble gas discharge, produce short wavelength's ultraviolet light.Direct excitated fluorescent powder in vacuum system carries out anti-vacuum-ultraviolet light deterioration test.
More than two kinds of methods all have a lot of drawbacks, first method because standard 147nm light source is relatively expensive, has been that the multi-user is beyond affordability, and is aging for a long time in addition, can influence the life-span of illuminator.Second method, though both economical easy realization, because the short UV light that is produced from fluorescent tube is absorbed by glass, it is very weak that it is excited at the ultraviolet light energy of phosphor surface, do not reach the aging requirement of fluorescent powder.
Summary of the invention
Method cost height at the anti-vacuum-ultraviolet light deteriorate performance that is used for the testing plasma display screen fluorescent powder in the prior art, ultraviolet light is by technical matters that glass absorbed, the present invention proposes a kind of proving installation of performance of resisting vacuum ultraviolet deterioration of fluorescent powder, comprise, glass discharge vessel, pair of metal electrodes, high-frequency and high-voltage power supply, in the groove of trough of belt glass sheet, be provided with fluorescent powder, be covered with glass sheet on the trough of belt glass sheet, be covered with glass sheet the trough of belt glass sheet and on fluorescent powder be arranged in the glass discharge vessel, pair of metal electrodes is corresponding to be arranged on the outer wall of glass discharge vessel, one end of electrode connects an end of high-frequency and high-voltage power supply, and an end of electrode connects the other end of high-frequency and high-voltage power supply, is provided with admission line and gas exhaust duct respectively at the both ends of glass discharge vessel.
A kind of plasma panel performance of resisting vacuum ultraviolet deterioration of fluorescent powder method of testing comprises the steps:
1) fluorescent powder is compressed on the trough of belt glass sheet, on the trough of belt glass sheet, covers another piece glass sheet, will be covered with then another piece glass sheet the trough of belt glass sheet and on fluorescent powder be placed in the glass discharge vessel;
2) pair of metal electrodes is attached on the corresponding position of glass discharge vessel outer wall, and is fixed;
3) with vacuum pump glass discharge vessel is carried out the vacuumizing and exhausting operation, the vacuum tightness in glass discharge vessel reaches 10
-5Behind the pressure of Pa, charge into inert mixed gas seal glass discharge tube behind the 100Torr in the glass discharge vessel;
4) high-frequency ac voltage with 4-15KV is added on the pair of metal electrodes, and adjustment voltage is 1-3KV, continues the excited inert gas discharge, and ionization goes out 147nm and 172nm ultraviolet light, and excitated fluorescent powder is luminous;
5) aging after 24-72 hour in glass discharge vessel, fluorescent powder taken out to be put into carry out brightness and spectrum test after wearing out on the vacuum ultraviolet spectrometer, concrete test data and the aging preceding brightness and the test data of spectrum are compared, estimate the vacuum ultraviolet deterioration performance of fluorescent powder.
Described glass discharge vessel footpath is at 3～4cm, and concrete size decides according to the size of trough of belt glass sheet.
Described electrode is a copper electrode, and its width is at least at 1cm, and two distance between electrodes need be regulated according to the glass discharge vessel size, and it is fixed that electrode length comes according to tested sample number.
The two ends of the glass discharge vessel in the described step 3) can be sealed or not seal, and the vacuum tightness in the glass discharge vessel reaches 10
-5The pressure of Pa.
The vacuum tightness of the glass discharge vessel in the described step 3) is weighed with the pressure of inert gas, at least at 100Torr.
Vacuum ultraviolet-excited system of the present invention, be used to test the anti-vacuum-ultraviolet light deteriorate performance of PDP fluorescent powder, the present invention is electrodeless in glass discharge vessel, electrode is attached to the corresponding placement in glass discharge vessel outside, on electrode, add high-frequency and high-voltage voltage, make it excite the mixed inert gas molecule in the pipe to produce 147nm and 172nm UV radiation, thereby excite the PDP light-emitting phosphor.Fluorescent powder after aging a period of time, takes out and is put into wear out on the vacuum ultraviolet spectrometer preceding and aging back brightness, spectrum contrast test in discharge tube, thereby just can estimate the vacuum ultraviolet deterioration performance of fluorescent powder.The present invention can finish the test to the anti-vacuum-ultraviolet light deteriorate performance of PDP fluorescent powder quickly and easily.
Description of drawings
Fig. 1 is one of proving installation synoptic diagram of performance of resisting vacuum ultraviolet deterioration of fluorescent powder of the present invention.
Fig. 2 is two of the proving installation synoptic diagram of performance of resisting vacuum ultraviolet deterioration of fluorescent powder of the present invention.
Embodiment
As shown in Figure 1, proving installation of the present invention comprises: glass discharge vessel 1, trough of belt glass sheet 3, trough of belt glass sheet 3 is provided with a square groove, the fluorescent powder 4 that need to detect is pressed in the shallow square groove by glass sheet 5, be coated with glass sheet 5 trough of belt glass sheet 3 and on fluorescent powder 4 be placed in glass discharge vessel 1 the inside, several trough of belt glass sheet 3 arrange successively, the caliber of glass discharge vessel 1 can decide according to the size of the trough of belt glass sheet 3 that uses at 3～4cm.The two ends of glass discharge vessel 1 are respectively arranged with admission line 9 and gas exhaust duct 10, and admission line 9 is the thin glass tubes that are communicated with glass discharge vessel 1 with gas exhaust duct 10, is used for bleeding and charging into inert gas.The a pair of metal electrode 6,7 that is circular shape is arranged on the outer wall of glass discharge vessel 1, and the circular shape of metal electrode and the circle of glass discharge vessel match, and is provided with in opposite directions, and metal electrode 6,7 connects the two ends of high-frequency and high-voltage power supply 8 respectively.Width is at least at 1cm, and two distance between electrodes are regulated according to glass discharge vessel 1 size, the electrode distance difference, and the air pressure of discharge is also different, and electrode distance is big more, and air pressure is more little, and institute's voltage that requires is low more, and preferred value is 100Torr.The sample size that the length dimension of electrode is tested is as required determined.
Glass discharge vessel 1 of the present invention is not sealed, and as shown in Figure 1, Fig. 2 is glass discharge vessel 1 sealing of the present invention, and its use is the same with the use of Fig. 1.
A kind of method of testing of plasma panel performance of resisting vacuum ultraviolet deterioration of fluorescent powder comprises the steps:
1) fluorescent powder is compressed on the trough of belt glass sheet, groove is of a size of: 20mm * 10mm * 0.5mm, on the trough of belt glass sheet, cover another piece glass sheet, will be covered with then another piece glass sheet the trough of belt glass sheet and on fluorescent powder be placed in the glass discharge vessel;
2) pair of metal electrodes is attached on the corresponding position of glass discharge vessel outer wall, and is fixed:
3) with vacuum pump glass discharge vessel is carried out the vacuumizing and exhausting operation, the vacuum tightness in glass discharge vessel reaches 10
-5Behind the pressure of Pa, charge into inert mixed gas seal glass discharge tube behind the 100Torr in the glass discharge vessel;
4) high-frequency ac voltage with 4-15KV is added on the pair of metal electrodes, and adjustment voltage is 1-3KV, continues the excited inert gas discharge, and ionization goes out 147nm and 172nm ultraviolet light, and excitated fluorescent powder is luminous;
5) aging after 24-72 hour in glass discharge vessel, fluorescent powder taken out to be put into carry out brightness and spectrum test after wearing out on the vacuum ultraviolet spectrometer, concrete test data and the aging preceding brightness and the test data of spectrum are compared, estimate the vacuum ultraviolet deterioration performance of fluorescent powder.After each sample test result calculated contrast, just can draw the quality of each sample performance of resisting vacuum ultraviolet deterioration.
To proving installation of the present invention to vacuum requirements: if gas in the glass discharge vessel is the state that is in convection current always, vacuum tightness is not then had specific requirement, if but glass discharge vessel seal, then need the oxygen in the glass discharge vessel is drained only.
Among the embodiment, the applicant is placed on fluorescent powder in the glass discharge vessel 1, starts at 4KV, be raised to-15KV after, when inert gas begins to excite voltage is transferred to 8KV, after the excited inert gas discharge makes light-emitting phosphor, continue the excited inert gas discharge, ionization goes out 147nm and 172nm ultraviolet light, voltage is turned down 2KV, and to carry out fluorescent powder aging, digestion time was respectively 24 hours, 48 hours, 72 hours, calculate contrast after, draw each sample performance of resisting vacuum ultraviolet deterioration data.
From experimental data, can obviously find out, in different digestion time sections the brightness decay of sample bigger than standard items, the amplitude that colourity X value rises is also bigger, the performance of resisting vacuum ultraviolet deterioration of interpret sample is poor, specifically data see attached list 1, subordinate list 2.
The vacuum ultraviolet deterioration experimental data:
Subordinate list 1 test data
| Brightness decay (%) | ΔX | ΔY | |
| Standard items (24 hours) | 1.0 | -0.0001 | +0.0002 |
| Standard items (48 hours) | 1.4 | -0.0000 | +0.0002 |
| Standard items (72 hours) | 1.8 | -0.0001 | +0.0003 |
| Sample (24 hours) | 2 | -0.0001 | +0.0004 |
| Sample (48 hours) | 2.5 | -0.0000 | +0.0003 |
| Sample (72 hours) | 3 | -0.0002 | +0.0004 |
Subordinate list 2 vacuum ultraviolet deteriorations are analyzed data
Claims (6)
1. the proving installation of a performance of resisting vacuum ultraviolet deterioration of fluorescent powder, comprise, glass discharge vessel (1), pair of metal electrodes (6,7), high-frequency and high-voltage power supply (8), it is characterized in that: in the groove of trough of belt glass sheet (3), be provided with fluorescent powder (4), be covered with glass sheet (5) on the trough of belt glass sheet (3), be covered with glass sheet (5) trough of belt glass sheet (2) and on fluorescent powder (4) be arranged in the glass discharge vessel (1), pair of metal electrodes (6,7) on the corresponding outer wall that is arranged on glass discharge vessel (1), one end of electrode (6) connects an end of high-frequency and high-voltage power supply (8), one end of electrode (7) connects the other end of high-frequency and high-voltage power supply (8), is provided with admission line (9) and gas exhaust duct (10) respectively at the both ends of glass discharge vessel (1).
2. the method for testing of a performance of resisting vacuum ultraviolet deterioration of fluorescent powder is characterized in that, comprises the steps:
1) fluorescent powder is compressed on the trough of belt glass sheet, on the trough of belt glass sheet, covers another piece glass sheet, will be covered with then another piece glass sheet the trough of belt glass sheet and on fluorescent powder be placed in the glass discharge vessel;
2) pair of metal electrodes is attached on the corresponding position of glass discharge vessel outer wall, and is fixed;
3) with vacuum pump glass discharge vessel is carried out the vacuumizing and exhausting operation, the vacuum tightness in glass discharge vessel reaches 10
-5Behind the pressure of Pa, in glass discharge vessel, charge into inert mixed gas behind 100Torr, the seal glass discharge tube;
4) high-frequency ac voltage with 4-15KV is added on the pair of metal electrodes, and adjustment voltage is 1-3KV, continues the excited inert gas discharge, and ionization goes out 147nm and 172nm ultraviolet light, and excitated fluorescent powder is luminous;
5) aging after 24-72 hour in glass discharge vessel, fluorescent powder taken out be put into the data test that carries out brightness and spectrum on the vacuum ultraviolet spectrometer after aging, concrete test data and the aging preceding brightness and the test data of spectrum are compared, estimate the vacuum ultraviolet deterioration performance of fluorescent powder.
3. the method for testing of performance of resisting vacuum ultraviolet deterioration of fluorescent powder according to claim 2 is characterized in that: described glass discharge vessel footpath is at 3-4cm, and concrete size decides according to the size of trough of belt glass sheet.
4. the method for testing of performance of resisting vacuum ultraviolet deterioration of fluorescent powder according to claim 2, it is characterized in that: described electrode is a copper electrode, its width is at least at 1cm, two distance between electrodes are regulated according to the diameter of glass discharge vessel, and electrode length is determined according to the position of tested sample in glass discharge vessel.
5. the method for testing of screen phosphor performance of resisting vacuum ultraviolet deterioration according to claim 2 is characterized in that: the two ends of the glass discharge vessel in the described step 3) can be sealed or not seal, and then the vacuum tightness in the glass discharge vessel reaches 10
-5The pressure of Pa.
6. the method for testing of performance of resisting vacuum ultraviolet deterioration of fluorescent powder according to claim 2, it is characterized in that: the vacuum tightness of the glass discharge vessel in the described step 3) is weighed with the pressure of inert gas, and voltage is low more, at least at 100Torr.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100231607A CN101592586B (en) | 2009-07-01 | 2009-07-01 | Method and device for testing performance of resisting vacuum ultraviolet deterioration of fluorescent powder |
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| CN2009100231607A CN101592586B (en) | 2009-07-01 | 2009-07-01 | Method and device for testing performance of resisting vacuum ultraviolet deterioration of fluorescent powder |
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| CN101592586A true CN101592586A (en) | 2009-12-02 |
| CN101592586B CN101592586B (en) | 2012-01-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424352A (en) * | 2012-05-22 | 2013-12-04 | 莱茵豪森等离子有限公司 | Method and apparatus for the weatherability testing of a material |
| CN103604789A (en) * | 2013-11-25 | 2014-02-26 | 南京信息职业技术学院 | System and method for testing performance of fluorescent powder |
| CN110546485A (en) * | 2017-04-17 | 2019-12-06 | 株式会社岛津制作所 | Luminescence spectroscopic analyzer |
-
2009
- 2009-07-01 CN CN2009100231607A patent/CN101592586B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424352A (en) * | 2012-05-22 | 2013-12-04 | 莱茵豪森等离子有限公司 | Method and apparatus for the weatherability testing of a material |
| US9234832B2 (en) | 2012-05-22 | 2016-01-12 | Maschinenfabrik Reinhausen Gmbh | Method and apparatus for the weatherability testing of a material |
| CN103604789A (en) * | 2013-11-25 | 2014-02-26 | 南京信息职业技术学院 | System and method for testing performance of fluorescent powder |
| CN103604789B (en) * | 2013-11-25 | 2016-04-06 | 南京信息职业技术学院 | A kind of fluorescent powder Performance Test System and method of testing |
| CN110546485A (en) * | 2017-04-17 | 2019-12-06 | 株式会社岛津制作所 | Luminescence spectroscopic analyzer |
| CN110546485B (en) * | 2017-04-17 | 2022-03-08 | 株式会社岛津制作所 | Luminescence spectroscopic analyzer |
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| CN101592586B (en) | 2012-01-04 |
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