Latest Advances in Substrates for Flexible Electronics (Printed Electronics Europe 2005)

Dr Bill MacDonald, Business Research Associate
DuPont Teijin Films, United Kingdom
 
Apr 19, 2005.

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Presentation Summary

The concept of "plastic electronics" and of flexible displays in particular is increasingly gaining momentum and the current strong interest opens up new opportunities for combining the advantages of having a flexible substrate with roll to roll processing. However the flexible substrate will not necessarily be an off the shelf product -it will have to provide a combination of thermal performance, dimensional stability, printability to a range of solvents, solvent resistance coupled with commercial availability and be available in a form suitable for roll to roll processing. Surface quality and barrier properties may also be important. For some applications, these substrates will be multilayer structures.
 
This contribution will
  • describe new developments in polyester film substrates for this application area and will contrast polyesters with the different films that are potential substrates
  • discuss the mechanical properties of multilayer structures on flexing and the impact of the processing environment on dimensional reproducibility.
  • discuss early experience of using the films in displays, flexible circuitry and first generation active matrix backplanes.

Speaker CV

After graduating B.Sc and Ph.D in chemistry from the University of St Andrew, Bill Macdonald joined ICI Plastics Division in 1980. He was initially involved in research into advanced materials, primarily liquid crystal polymers, and moved into the Polyester Films Business in the early 1990's. The Films Business was sold to DuPont and Bill MacDonald is currently a Business Research Associate in DuPont Teijin Films , a 50:50 joint venture between DuPont and Teijin. He has coauthored 37 papers, several book chapters and has filed 11 patents.

Company Profile

DuPont Teijin Films is the world's premier producer of PET and PEN polyester films.
 
They specialise in film products and related services for application areas including Safety and Protection, Security, Electronics, Packaging and Industrial Applications. The company has reported sales of $1.4 billion and employs about 4,000 people with dedicated marketing, technical and manufacturing operations in all regions of the world.
 
DuPont Teijin Films is a 50:50 joint venture between DuPont and Teijin Limited of Japan, and is committed to the polyester films industry. DTF offers the broadest portfolio of polyester films of any supplier in the industry and has an unmatched technology platform Innovation as a key driver for the business and by understanding the markets in which they operate, DuPont Teijin Films are able to develop and deliver innovation for customers and on through the supply chain, ensuring they are aligned with a profitable future.