OLED, Organic Light Emitting Display, has found its wide applications in many industries because of its advantages as slimness, low temperature display, low cost and self-lighting. However, the organic light emitting material of OLED is sensitive to water molecule; and excessive water molecule transmission would affect the life span of OLED. This has been a great obstacle for the further development of OLED. Thus, how to test the molecule permeability of OLED film and sheet [...]

Permeation is one of the indexes indicates the barrier properties in material field. In packaging material industry, permeation is used to state and evaluate the barrier property of packaging materials against water vapor, oxygen or other gases, etc.; that is, through the evaluation of water vapor transmission rate (WVTR) testing, oxygen transmission rate (OTR) and other gas transmission rate (GTR) testing of packaging materials, the basic guarantee for product quality and shelf-life period is confirmed. More questions for Permeation, please visit www.labthink.cn for answers.