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Method for detecting metal migration resistance of LED particles

A detection method and anti-metal technology, which is applied in the detection field of LED particle anti-metal migration ability, can solve the problems of wasting particles, time, and resource waste

Active Publication Date: 2020-10-23
YANCHENG DONGSHAN PRECISION MANUFACTURING CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the detection method of metal migration resistance of LED particles in the prior art will waste a lot of particles and time, and the experimental conditions are special, requiring the use of high and low temperature cycle equipment③, which causes a serious waste of resources in the experiment

Method used

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  • Method for detecting metal migration resistance of LED particles
  • Method for detecting metal migration resistance of LED particles
  • Method for detecting metal migration resistance of LED particles

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Embodiment 1

[0047] Silicone resin glue A, B, C, and D are respectively made into particles a, particles b, particles c, and particles d; the above particles a, particles b, particles c, and particles d are electrically measured, and good product particles a are screened out respectively. , granule b, granule c, and granule d are reserved.

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Abstract

The invention provides a method for detecting the metal migration resistance of LED particles. The method comprises the following steps: a) putting a plurality of particles to be detected into a saturated NaCl solution, and heating; and respectively carrying out voltage test and reverse current test on each particle to be tested at regular intervals, and counting the number of particles of which the test result exceeds the specification to obtain a detection result. Compared with the prior art, the detection method has the advantages that specific steps are adopted so that the time for detecting the metal migration resistance of the LED particles can be shortened, and the metal migration resistance of the LED particles can be obtained quickly, simply and effectively; the detection method is simple, convenient, rapid, low in material consumption, accurate in detection result, high in stability and good in repeatability.

Description

technical field [0001] The invention relates to the technical field of performance detection of LED particles, in particular to a method for detecting the anti-metal migration ability of LED particles. Background technique [0002] With the increasingly popular small-pitch LED screen market, the market demand for small-particle LEDs is increasing, and the performance requirements are also getting higher and higher. On this basis, it poses a higher challenge to the comprehensive ability of small particle LEDs, especially the ability to resist metal migration. At present, the small-pitch LED particle products used in batches in the market have weak structural protection. When the particles are applied to the display screen, the high refresh rate of the display screen will cause metal electrochemical migration, thereby affecting its service life. For this reason, the major packaging companies do not hesitate to spend a lot of manpower, time, and equipment to test the anti-meta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/26
CPCG01R31/2635G01R31/2648Y02E10/50
Inventor 羊鹏
Owner YANCHENG DONGSHAN PRECISION MANUFACTURING CO LTD