Germany - DELO Industrial Adhesives (www.delo.de), a manufacturer of tailor-made adhesive solutions, presents newly developed adhesives for display manufacturers. The specifically developed adhesives are used in electrophoretic displays, e. g., in novel e-readers:
Studies by DisplaySearch and FlexTech Alliance expect the market to grow to 48 million items by 2018.
The e-paper laminates, however, react sensitively to too high or too low temperatures and humidity. Therefore, the adhesive serves an edge sealant and protects the displays against temperature and humidity. Therefore, it provides for a long lifetime.
Some of the adhesives’ key properties are a good adhesion to the materials used and a low permeation for water vapor (also called WVTR value). What is special about it is that DELO’s products are not cured by UV light – as is conventional for cationic-curing epoxy resins – but with visible light.
As electrophoretic displays can also be flexible or bent, the adhesive must adapt to them accordingly. Therefore, it can be made more flexible and can, therefore, also be used in flexible electronics, for example, in flexible organic solar cells or flexible OLEDs.
