Amorphous Silicon Display Backplanes on Plastic Substrates

TitleAmorphous Silicon Display Backplanes on Plastic Substrates
Publication TypeJournal Article
Year of Publication2006
AuthorsStriakhilev, D., A. Nathan, Y. Vygranenko, P. Servati, C. - H. Lee, and A. Sazonov
JournalDisplay Technology, Journal of
Pagination364 -371
Date Publisheddec.
Keywordsactive-matrix organic light-emitting diode displays, amorphous silicon display backplanes, current drive capability, driver circuits, field-effect mobility, flat panel displays, LED displays, long-term stability, organic light emitting diodes, pixel driver circuits, plastic substrates, Si, silicon, thin film transistors, thin-film transistor backplanes

Amorphous silicon (a-Si) thin-film transistor (TFT) backplanes are very promising for active-matrix organic light-emitting diode displays (AMOLEDs) on plastic. The technology benefits from a large manufacturing base, simple fabrication process, and low production cost. The concern lies in the instability of the TFTs threshold voltage (VT) and its low device mobility. Although VT-instability can be compensated by means of advanced multi-transistor pixel circuits, the lifetime of the display is still dependent on the TFT process quality and bias conditions. A-Si TFTs with field-effect mobility of 1.1 cm2/Vmiddots and pixel driver circuits have been fabricated on plastic substrates at 150 degC. The circuits are characterized in terms of current drive capability and long-term stability of operation. The results demonstrate sufficient and stable current delivery and the ability of the backplane on plastic to meet AMOLED requirements


a place of mind, The University of British Columbia

Electrical and Computer Engineering
2332 Main Mall
Vancouver, BC Canada V6T 1Z4
Tel +1.604.822.2872
Fax +1.604.822.5949

Emergency Procedures | Accessibility | Contact UBC | © Copyright 2021 The University of British Columbia