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Proceedings Paper

An flexible OLED driven by OTFT backplane manufactured using a scalable process
Author(s): Mao Katsuhara; Iwao Yagi; Akira Yumoto; Makoto Noda; Nobukazu Hirai; Ryoichi Yasuda; Toshiki Moriwaki; Shinichi Ushikura; Ayaka Imaoka; Tatsuya Sasaoka; Kazumasa Nomoto
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Paper Abstract

A full-color, top-emission active-matrix organic light-emitting diode display build on a flexible substrate (flexible OLED) has been successfully driven by organic-TFTs made by a scalable manufacturing process (lift-off and shadow mask free process). The OTFTs were fabricated with low cost metal (copper and aluminum) electrodes. The backplane architecture was developed at low temperatures (<150°C) with solution-processed organic dielectrics. The fabricated TFTs are reliable against bending stress with 2-mm radius. With this ultra high flexibility of the OTFT, the display shows no significant degradation for an operating period >25 hours with more than 10,000 times bending.

Paper Details

Date Published: 20 August 2009
PDF: 9 pages
Proc. SPIE 7417, Organic Field-Effect Transistors VIII, 74170W (20 August 2009); doi: 10.1117/12.828846
Show Author Affiliations
Mao Katsuhara, Sony Corp. (Japan)
Iwao Yagi, Sony Corp. (Japan)
Akira Yumoto, Sony Corp. (Japan)
Makoto Noda, Sony Corp. (Japan)
Nobukazu Hirai, Sony Corp. (Japan)
Ryoichi Yasuda, Sony Corp. (Japan)
Toshiki Moriwaki, Sony Corp. (Japan)
Shinichi Ushikura, Sony Corp. (Japan)
Ayaka Imaoka, Sony Corp. (Japan)
Tatsuya Sasaoka, Sony Corp. (Japan)
Kazumasa Nomoto, Sony Corp. (Japan)


Published in SPIE Proceedings Vol. 7417:
Organic Field-Effect Transistors VIII
Zhenan Bao; Iain McCulloch, Editor(s)

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