Title :
Thin film transistors for foldable displays
Author :
Ma, E.Y. ; Theiss, S.D. ; Lu, M.H. ; Wu, C.C. ; Sturn, J.C. ; Wagner, S.
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., NJ, USA
Abstract :
We report the first amorphous silicon thin film transistors (TFTs) on flexible, ultra-thin substrates of 25 /spl mu/m thick stainless steel foil. The transistors remain operational under convex or concave bending down to 2.5 mm radius of curvature. The goal of our work is a transistor backplane circuit that can be folded, for use in active matrices in highly rugged and portable applications such as foldable intelligent maps. Our results suggest that such foldable backplane circuits are feasible.
Keywords :
LED displays; amorphous semiconductors; elemental semiconductors; flat panel displays; silicon; thin film transistors; 2.5 mm; 25 micron; LED displays; Si; active matrices; amorphous semiconductors; concave bending; convex bending; foldable displays; foldable intelligent maps; portable applications; thin film transistors; transistor backplane circuit; ultra-thin substrates; Amorphous silicon; Backplanes; Chromium; Displays; Glass; Organic light emitting diodes; Steel; Stress; Substrates; Thin film transistors;
Conference_Titel :
Electron Devices Meeting, 1997. IEDM '97. Technical Digest., International
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-4100-7
DOI :
10.1109/IEDM.1997.650441
