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Barix™ Barrier Film (BBF), sometimes referred to as Flexible Glass, is a
thin, transparent, flexible or conformable substrate with outstanding barrier
properties. The Barix™ process can be used to coat the base polymer film in batch
or roll-to-roll configurations. A display or electronics manufacturer can use BBF as
a substrate and/or encapsulation sheet for their flexible OLED displays and organic
electronics.
thin, transparent, flexible or conformable substrate with outstanding barrier
properties. The Barix™ process can be used to coat the base polymer film in batch
or roll-to-roll configurations. A display or electronics manufacturer can use BBF as
a substrate and/or encapsulation sheet for their flexible OLED displays and organic
electronics.
The image below shows a roll of BBF that uses polyethylene naphthalate (PEN) as
the base film. The inset is a barrier test sample. It consists of a microscopically
thin (70 nm) calcium metal layer that has been deposited onto a BBF film and then
directly encapsulated by the Barix™ process. Calcium metal is highly reactive with
moisture and readily oxidizes to form a transparent oxide. Unprotected, such a
layer of calcium will completely oxidize and become transparent in a matter of
seconds. By measuring the change in light transmission over time, the barrier
performance can be determined. This is one of the techniques that has been
developed and implemented at Vitex to be able to measure the minute water vapor
transmission rates characteristic of Barix™ barrier films.
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| Barix™ Barrier Film |