Integration of organic LEDs and amorphous Si TFTs onto flexible and lightweight metal foil substrates
Authors:
- S.D. TheiussSTS.D. Theiuss
- G. GuGGG. Gu
- M.H. LuMLM.H. Lu
- J.C. SturmJSJ.C. Sturm
- S. WagnerSWS. Wagner
- S.R. ForrestSFS.R. Forrest
- 1 December 1997
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Electron Device Letters
- Vol. 18 (12) , 609-612
Abstract
We report the integration of organic light emitting devices (OLEDs) and amorphous Si (a-Si) thin-film transistors (TFTs) on both glass, and unbreakable and lightweight thin stainless steel foil substrates. The doped-polymer OLEDs were built following fabrication of driver TFTs in a stacked structure. Due to the opacity of the steel substrate, top-emitting OLED structures were developed. It is shown that the a-Si TFTs provide adequate current levels to drive the OLEDs at video brightness (/spl sim/100 cd/m/sup 2/). This work demonstrates that lightweight and rugged TFT backplanes with integrated OLEDs are essential elements for robust and highly portable active-matrix emissive flat-panel displays.Keywords
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