CN105973548B - Testing vapor transmission fixture based on active metal electric method - Google Patents
Testing vapor transmission fixture based on active metal electric method Download PDFInfo
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- CN105973548B CN105973548B CN201610296409.1A CN201610296409A CN105973548B CN 105973548 B CN105973548 B CN 105973548B CN 201610296409 A CN201610296409 A CN 201610296409A CN 105973548 B CN105973548 B CN 105973548B
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- card slot
- clamping fixture
- fixture seat
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/40—Investigating fluid-tightness of structures by using electric means, e.g. by observing electric discharges
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- General Physics & Mathematics (AREA)
- Measuring Leads Or Probes (AREA)
Abstract
The invention discloses a kind of testing vapor transmission fixtures based on active metal electric method, including clamp cover and clamping fixture seat, external screw thread is offered outside the clamping fixture seat, it is internally provided with test chamber, the insulation card slot for placing packaging is provided in the test chamber, the insulation card slot offers through-hole, and the through-hole is for placing test probe, with the test contact electrode of the packaging, internal screw thread corresponding with the external screw thread that clamping fixture seat opens up is offered inside the clamp cover.During based on active metal (calcium, magnesium etc.) electric method measurement water vapor transmittance, start to measure again after being clamped packaging using the present invention, it must can effectively improve the accuracy of measurement result and the stability of test process, and the present invention can adapt to the measurement of the packaging of a variety of different sizes, have the characteristics that testing efficiency is high, manufacturing cost is low and easily operated.
Description
Technical field
It is especially a kind of based on active metal electric method and can be various the present invention relates to testing vapor transmission fixture
The test fixture of packaging water vapor transmittance is measured under temperature and humidity conditions.
Background technique
Organic electroluminescence device (OLED) have actively luminous, low in energy consumption, fast response time, operating temperature range it is wide,
The features such as Flexible Displays can be achieved is with a wide range of applications in illumination and display field.But short service life is to restrict
One of the critical issue of OLED industrialization, mainly OLED (especially steam) especially sensitive to the water oxygen in environment.Therefore, high
Reliability encapsulation technology becomes one of critical issue urgently to be solved, and water vapor transmittance is that evaluation packaging performance is main
Technical parameter, so to water vapor transmittance carry out it is high-precision test be study encapsulation performance basis.
Currently, mainly having coulomb coulometry for measuring the method that the maturing apparatus of water vapor transmittance uses on the market and putting
Injectivity isotope trace method.The former is to be detected using coulomb electrical quantity sensor, but its measuring accuracy is only 5 × 10-5
g·m-2·d-1, it is unable to reach the test request of OLED encapsulation performance；The measurement accuracy of the latter can reach 2 × 10-7 g·m-2·
d-1, but this test method somewhat expensive, the radioactive substance of use has certain risk, to test equipment and environment
It is required that it is harsh, while the experiment parameter being related to is more, it is difficult to it controls.Comprehensively consider measurement accuracy requirement and test environment is wanted
It asks, many laboratory environments gradually adopt the test of active metal (calcium, magnesium etc.) electric method progress water vapor transmittance, this method master
The lively type that utilize metal uses it as test sensor, by the variation of active metal resistance value come to water vapor transmittance
It is evaluated.The test method is quick, simple, and measurement accuracy reaches 1 × 10-6 g·m-2·d-1, can satisfy OLED envelope
Fill the test request of device performance.
In the prior art, using the test macro of active metal (calcium, magnesium etc.) electric method test water vapor transmittance, for work
The measurement for sprinkling metallic resistance value, which generallys use crocodile clip and directly clamps the test electrode of packaging, to be measured, but is based on work
When bold and vigorous metal (calcium, magnesium etc.) electric method measures the water vapor transmittance of OLED encapsulation performance, measurement accuracy is mainly taken
Certainly in the accurate measurement to active metal resistance change, the measurement method directly clamped is easy to be influenced to survey by external interference
Measure the accuracy of result；Also there is the test macro of part comparative maturity by the way of clamp, encapsulated using fixture is fixed
Sample, then measure, the test mode can effectively improve the accuracy of measurement, but due to structure it is not perfect etc. because
Element can typically be only used under specific temperature and humidity environment measure, and the packaging that can be tested is of single specification, it is difficult to meet more
More measurement demands.
Summary of the invention
Do not make to overcome in the existing test macro based on active metal (calcium, magnesium etc.) electric method measurement water vapor transmittance
It is difficult to meet the deficiency of more measurement demands with test fixture and the test fixture used, the purpose of the present invention is to provide one kind
Simple structure, Quick-clamped, and can be used under various temperature and humidity environment carrying out steam transmission to different size packaging
The test fixture of rate measurement.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of testing vapor transmission fixture based on active metal electric method, including clamp cover and clamping fixture seat, the folder
External screw thread is offered outside tool seat, test chamber is internally provided with, is provided in the test chamber for placing the exhausted of packaging
Edge card slot, the insulation card slot offer through-hole, place test probe in the through-hole, the test probe and packaging
Contact electrode is tested, offers the internal screw thread being connected with the external screw thread that clamping fixture seat opens up inside the clamp cover.
Cylinder table is offered inside the clamp cover, when the clamp cover is connected through a screw thread clamping with clamping fixture seat, institute
State cylinder table in the vertical direction hold out against packaging so that the packaging with test probe holding well contact.
The insulation card slot is equipped with a variety of different sizes as needed, and easy to disassemble.
The test probe end is provided with test winding displacement, is external on test equipment by the test winding displacement.
The clamp cover and clamping fixture seat are made of aluminum alloy materials, and the insulation card slot is made of POM plastic.
The present invention compared with prior art, has following obvious outstanding feature and remarkable advantage:
During based on active metal (calcium, magnesium etc.) electric method measurement water vapor transmittance, using the present invention to encapsulation
Device starts to measure again after being clamped, and can effectively improve the accuracy of measurement result and the stability of test process；Folder
The clamping mode that tool is screwed using screw thread contacts the test electrode of packaging well with test probe holding, in addition fixture
Main body is made of aluminum alloy material, can be continued working under hot and humid environment, can be consequently used for various temperature and humidity items
Water vapor transmittance measurement under part；In addition alternatively insulation card slot is added inside fixture, one can separate jig main body (aluminium
Alloy material) with packaging on test electrode, avoid them from contacting with each other, eliminate due to electrode contact generate measurement miss
Difference, two carry out the card slot that insulate by replacement, can adapt to the packaging of different size；Fixture overall structure is simple, facilitates batch
Production while can be realized to multiple samples, quickly, efficiently measures.
Detailed description of the invention
Fig. 1 is test fixture integral installation distribution structure schematic diagram of the invention.
Fig. 2 is the integral installation distribution structure schematic diagram of test fixture of the invention without clamp cover.
Fig. 3 is test fixture entirety diagrammatic cross-section of the invention.
Fig. 4 is test fixture entirety 3D perspective view of the explosion of the invention.
Specific embodiment
A specific embodiment of the invention is illustrated with reference to the accompanying drawing.
As shown in Figures 1 to 4, a kind of testing vapor transmission fixture based on active metal electric method, including clamp cover 1
With clamping fixture seat 2, external screw thread is offered outside the clamping fixture seat 2, test chamber is internally provided with, is provided with and is used in the test chamber
The insulation card slot 3 of packaging 6 is placed, the insulation card slot 3 offers through-hole, and test probe 4 is placed in the through-hole, described
The test contact electrode of probe 4 and packaging 6 is tested, offers the outer spiral shell opened up with clamping fixture seat 2 inside the clamp cover 1
The internal screw thread that line is connected.
As shown in Figure 1, a large through-hole and eight small through hole are offered in the present embodiment above clamp cover 1, so that
Steam in test process in ambient enviroment is above clamp cover 1 well into fixture inside.
As shown in Fig. 2, the clamping fixture seat 2 is internally provided with test chamber, the test chamber is internally provided with for placing envelope
Fill the insulation card slot 3 of device.The test electrode of usual packaging 6 is all disposed within the edge of packaging 6, therefore is testing
Cheng Zhong, test electrode can encounter clamp body, and because clamp body is made of aluminum alloy material, when test electrode directly connects
When touching, the resistance measurement inaccuracy of metal will cause, and then influence the calculating of water vapor transmittance.By adding POM plastic material
After insulation card slot 3 made of matter, packaging 6 is effectively separated with clamp body, can be avoided the electrode due to packaging
Hold measurement error caused by change in resistance.Further, clamping fixture seat 2 and insulation card slot 3 all offer square groove, so that measuring
The steam in ambient enviroment can be from 2 lower section of clamping fixture seat well into fixture inside, in conjunction in clamp cover 1 described above in the process
The through-hole of Fang Kaishe, it is ensured that test environment in steam can be abundant enter in test chamber, avoid due to fixture
Using causing the water vapour environment inside and outside fixture inconsistent.
In addition the insulation card slot 3 offers through-hole, through-hole for placing test probe 4, during the test with encapsulation
Test contact electrode on device.In addition to this, size dimension for packaging 6 is different, test electrode position pendulum
Put difference, devise the insulation card slot 3 of different size for measuring selection, the packaging size tested as needed and
Electrode position is tested, corresponding insulation card slot 3 is selected to be replaced.As for the lead to the hole site design (test on insulation card slot 3
The placement position of probe), it is to carry out putting design, the i.e. measurement to each calcium electric resistance value using Kelvin's four probe method
It is respectively provided with 4 test points (4 groups of test probes) to measure, so must can effectively eliminate contact resistance bring shadow
It rings, making resistance actual measured value is the true value of measured resistance, also to ensure that there is good ohm to connect in test process
Touching, every group of test probe use the design of double probes.
As shown in figure 3, the clamp cover 1 and clamping fixture seat 2 are cylinder design, internal screw thread is offered inside clamp cover 1,
2 column part of clamping fixture seat offers corresponding external screw thread, therefore clamp cover 1 and clamping fixture seat 2 are connected through a screw thread realization and close
Co-clip is tight, in addition, offering Small Cylindrical platform inside clamp cover 1, is closely placed in clamping fixture seat 2 when clamp cover 1 is connected through a screw thread
When upper, the Small Cylindrical platform just holds out against packaging 6 in the vertical direction, positions in conjunction with the horizontal direction of insulation card slot 3,
The test electrode on packaging 6 is set to keep well contacting with the test probe 4 with elastic syringe needle on insulation card slot 3.Into one
Step, the elastic needle end of probe 4 and the test contact electrode of packaging 6 are tested, the other end then passes through outside test winding displacement 5
It is connected to test equipment end.Due to test need, sometimes entire test fixture to be put into togerther together with packaging temperature and humidity compared with
In high accelerated ageing environment, using test winding displacement 5 carry out cabling must can effectively connect test fixture in ageing environment and
Test equipment outside packaging and ageing environment keeps for a long time effectively measurement.
When using the present invention, clamp cover 1 is unscrewed, the position where the size of packaging 6 and its test electrode
It sets, selects suitable insulation card slot 3 to be packed into clamping fixture seat 2, packaging 6 is put into after installing, clamp cover 1 is connected through a screw thread rotation
Tightly on clamping fixture seat 2, then the one end for testing winding displacement 5 is connect with the lower end of test probe 4, the other end attaches to background test
On instrument, measured in temperature and humidity environment required for being finally put into togerther packaging 6 together with test fixture.
Claims (4)
1. a kind of testing vapor transmission fixture based on active metal electric method, including clamp cover (1) and clamping fixture seat (2),
It is characterized in that: offering external screw thread outside the clamping fixture seat (2), be internally provided with test chamber, setting is useful in the test chamber
In the insulation card slot (3) for placing packaging (6), the insulation card slot (3) offers through-hole, places test in the through-hole and visits
Needle (4), the test contact electrode of test probe (4) and packaging (6), offer inside the clamp cover (1) and
The internal screw thread that the external screw thread that clamping fixture seat (2) opens up is connected, the clamp cover (1) is internal to offer cylinder table, when the fixture
Lid (1) and clamping fixture seat (2) are when being connected through a screw thread clamping, the cylinder table in the vertical direction hold out against packaging (6), with
The packaging is set to keep well contacting with test probe (4)；Clamping fixture seat (2) and insulation card slot (3) all offer square groove,
So that the steam in ambient enviroment can be below clamping fixture seat (2) well into fixture inside, in conjunction with described in measurement process
The through-hole opened up above clamp cover (1) keeps the steam tested in environment so abundant that enter in test chamber, maintains in fixture
Outer water vapour environment is consistent.
2. the testing vapor transmission fixture according to claim 1 based on active metal electric method, it is characterised in that: institute
It states insulation card slot and is equipped with a variety of different sizes as needed, and is easy to disassemble.
3. the testing vapor transmission fixture according to claim 1 based on active metal electric method, it is characterised in that: institute
It states test probe (4) end and is provided with test winding displacement (5), be external on test equipment by the test winding displacement (5).
4. the testing vapor transmission fixture according to claim 1 based on active metal electric method, it is characterised in that: institute
It states clamp cover (1) and clamping fixture seat (2) is made of aluminum alloy materials, the insulation card slot (3) is made of POM plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610296409.1A CN105973548B (en) | 2016-05-07 | 2016-05-07 | Testing vapor transmission fixture based on active metal electric method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610296409.1A CN105973548B (en) | 2016-05-07 | 2016-05-07 | Testing vapor transmission fixture based on active metal electric method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105973548A CN105973548A (en) | 2016-09-28 |
| CN105973548B true CN105973548B (en) | 2019-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610296409.1A Active CN105973548B (en) | 2016-05-07 | 2016-05-07 | Testing vapor transmission fixture based on active metal electric method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108074833B (en) * | 2017-12-18 | 2021-03-02 | 武汉华星光电半导体显示技术有限公司 | Test film, jig for evaluating film packaging performance and test method |
| CN108044542A (en) * | 2017-12-27 | 2018-05-18 | 合肥知常光电科技有限公司 | A kind of optical element quick-replaceable positioner |
| CN114563325B (en) * | 2022-03-15 | 2024-08-23 | 中国科学院苏州纳米技术与纳米仿生研究所 | Device and method for testing water permeability of electric Ca membrane method |
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| GB2406973A (en) * | 2003-10-08 | 2005-04-13 | Wan-Chuan Chou | Modular IC socket |
| CN201689154U (en) * | 2010-05-14 | 2010-12-29 | 华南理工大学 | Testing box of multifunctional semiconductor device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008286702A (en) * | 2007-05-18 | 2008-11-27 | Nippon Telegr & Teleph Corp <Ntt> | Device and method for evaluating moisture permeability |
| CN201673178U (en) * | 2010-06-17 | 2010-12-15 | 成都凯裕电子电器有限公司 | Thin film resistance testing fixture |
| CN102175624A (en) * | 2011-03-16 | 2011-09-07 | 上海大学 | Method for testing water vapor transmittance |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2406973A (en) * | 2003-10-08 | 2005-04-13 | Wan-Chuan Chou | Modular IC socket |
| CN201689154U (en) * | 2010-05-14 | 2010-12-29 | 华南理工大学 | Testing box of multifunctional semiconductor device |
Non-Patent Citations (1)
| Title |
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| 基于Al2O3封装薄膜的OLED水汽透过率测试方法及系统研究;段玮等;《发光学报》;20160131;第37卷(第1期);第89-91页 |
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