Integration of organic LEDs and amorphous Si TFTs onto flexible and lightweight metal foil substrates

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...

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Veröffentlicht in:	IEEE electron device letters 1997-12, Vol.18 (12), p.609-612
Hauptverfasser:	Wu, C.C., Theiuss, S.D., Gu, G., Lu, M.H., Sturm, J.C., Wagner, S., Forrest, S.R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Amorphous materials Brightness Driver circuits Fabrication Glass Light emitting diodes Organic light emitting diodes Steel Substrates Thin film transistors
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Beschreibung
Zusammenfassung:	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.
ISSN:	0741-3106 1558-0563
DOI:	10.1109/55.644086