Polyester film substrates have been widely used in making relatively simple membrane touch switches and other flexible / printed electronic devices for over 30 years, yet since the early 2000's there has been an ever increasing desire to use 'additive' printed electronics to replace 'subtractive' etched circuitry in more complex, high performance, high value products. The ability to use flexible substrates in Roll-to-Roll productionSubstrates: Po

摘要

Polyester film substrates have been widely used in making relatively simple membrane touch switches and other flexible / printed electronic devices for over 30 years, yet since the early 2000's there has been an ever increasing desire to use "additive" printed electronics to replace "subtractive" etched circuitry in more complex, high performance, high value products. The ability to use flexible substrates in Roll-to-Roll production provides even more incentives for creativity within the plastic films, film processing, and coating industries. This next generation of Flexible Electronics technologies has required materials suppliers to deliver improved functionality to the device developers in fields as wide as electrophoretic displays, backplanes, barrier films, photovoltaics, sensors etc. This presentation will update the audience with the latest polyester film developments for Flexible Electronics, with an emphasis on optically clear films for a wide variety of rigid and flexible display applications. Clear PET (polyethylene terephthalate) and PEN (polyethylene naphthalate) polyester films are commercially available for Flexible Electronics & Displays. These bi-axially oriented, semi-crystalline films provide the end users a unique combination of high stiffness, dimensional stability, optical transparency, solvent resistance, and cost as compared to several other polymer film types.