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Equipment and method for testing water vapor transmission rate of packaging materials

A technology for water vapor transmission rate and packaging material, which is applied in permeability/surface area analysis, suspension and porous material analysis, measurement devices, etc. Effect

Active Publication Date: 2019-01-22
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly provides a water vapor transmission rate testing equipment and method for packaging materials, aiming to solve the problem of high cost and low efficiency caused by only one testing method for the water vapor transmission and filtration of packaging materials.

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  • Equipment and method for testing water vapor transmission rate of packaging materials
  • Equipment and method for testing water vapor transmission rate of packaging materials
  • Equipment and method for testing water vapor transmission rate of packaging materials

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Embodiment Construction

[0021] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the water vapor transmission rate testing equipment and method of a packaging material provided by the present invention will be described in further detail below in conjunction with the drawings and specific embodiments.

[0022] See figure 1 , The water vapor transmission rate test equipment of a packaging material of the present invention includes: a test cavity 10, a photographing device 11, a test circuit 12 and a light source 13.

[0023] Wherein, the test cavity 10 is a constant temperature and humidity environment, and this embodiment takes a constant temperature and humidity box as an example.

[0024] The test cavity 10 is provided with a bearing plate / frame 101. In this example, the bearing plate / frame 101 is an integral plate / frame. The object to be tested 102 is placed on the supporting plate / frame 101, and the test circuit 12 is connected to the supp...

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Abstract

A device and method for testing a moisture vapor transmission rate of a packaging material. The device comprises a test cavity (10), a photographing means (11), and a test circuit (12). A loading board / frame (101) and the photographing means (11) are disposed in the test cavity (10). The test circuit (12) is connected to the loading board / frame (101), and is used for electrically connecting to a to-be-tested object (102) on the loading board / frame (101) and performing an electrical test on the to-be-tested object (102). The photographing means (11) is used for performing an optical test on the to-be-tested object (102) within at least partial duration in which the test circuit (12) performs the electrical test on the to-be-tested object (102). The device achieves the purpose of simultaneously performing an electrical test and an optical test in one device, reduces the costs, and improves the working efficiency.

Description

Technical field [0001] The invention relates to the technical field of material moisture permeability measurement, in particular to a device and method for testing water vapor permeability of packaging materials. Background technique [0002] OLED devices have outstanding advantages such as high contrast, wide color gamut, flexibility, lightness and thinness, and energy saving. They have a bright future in the display field. However, the active metals used to form metal cathodes in OLED devices are very sensitive to water vapor and oxygen in the air. It is very easy to react with the infiltrating water vapor and affect the injection of electric charge. In addition, the permeated water vapor and oxygen will also chemically react with organic materials. These reactions are the main factors that cause the performance degradation of OLED devices and shorten the life of OLED devices. Therefore, packaging technology, especially the moisture permeability of packaging materials, is very ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/08
CPCG01N15/08
Inventor 沐俊应
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD