Creating Flexible TFT Substrates With TOYOBO's Epoch-Making Manufacturing Technologies (Internet of Things Applications USA 2019)

A requirement has been increasing for new plastic film which has more heat resistance and low thermal expansion for flexible Thin Film Transistor (TFT) substrate. TOYOBO's epoch-making polyimide film "XENOMAX®" has ultra-low CTE, 3 ppm/K, which is almost equal to that of glass substrate for TFT or silicon wafer. It is ideal film for flexible TFT substrates. Furthermore, TOYOBO has developed an epoch-making film handling technique which can fix polyimide film on glass substrate and keeps it up to 500℃. This can be used in the manufacturing process of TFT, using conventional glass substrate and makes it easy to manufacture flexible TFT substrates at a reasonable moderate cost.

Toyobo is composed of four major business units and based on the technology of modification, polymerization, processing and bio-science. The key focus is specifically functional polymers and materials business. Toyobo "Vylon" is the functional co-polyester resin created by advanced high-molecular weight polymerization technology and available for various applications in adhesive, coating and sealant industries etc.