A flexible electronic paper with integrated display driver using single grain TFT technology

Master thesis (2009)

Authors

Contributors

R. Ishihara (mentor)
Faculty
Electrical Engineering, Mathematics and Computer Science (EEMCS) (TU Delft)
Copyright: © 2009 W.M. Chim
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Published Date

02-02-2009

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Faculty

Electrical Engineering, Mathematics and Computer Science

Abstract

DIMES and the department Computer Engineering from the University of Technology Delft are developing an Electronic Paper Display. This display will have a paper-like appearance (paper-white, wide view angle), and it can retain its display contents even after power down. The E-paper Display will have its own display driver integrated in the display itself. In the future it will be possible to integrate with the E-Paper Display, large and complex digital circuits or even microcontrollers with their peripherals. We are using the Single Grain TFT (SG-TFT) Technology developed at DIMES for the integrated electronics. Using this technology we are able to create high performance transistors out of amorphous silicon film. With these TFTs, a Display Driver is build that will control the QR-LPD E-Paper material from Bridgestone. This E-Paper material has an ultra fast pixel response, which makes it possible to use this E-Paper to view animations. This E-Paper Display will showcase some of the possibilities that the SG-TFT Technology has to offer: 1) Mixed signals, both analog and digital circuits are present in this display; 2) High voltage SG-TFTs (70V) to control the QR-LPD E-Paper material; 3) Flexible Electronics, the possibility to fabricate on plastic substrate and make a fully flexible E-Paper Display, including the integrated electronics.