An flexible OLED driven by OTFT backplane manufactured using a scalable process

Mao Katsuhara; Iwao Yagi; Akira Yumoto; Makoto Noda; Nobukazu Hirai; Ryoichi Yasuda; Toshiki Moriwaki; Shinichi Ushikura; Ayaka Imaoka; Tatsuya Sasaoka; Kazumasa Nomoto

doi:10.1117/12.828846

20 August 2009 An flexible OLED driven by OTFT backplane manufactured using a scalable process

Mao Katsuhara, Iwao Yagi, Akira Yumoto, Makoto Noda, Nobukazu Hirai, Ryoichi Yasuda, Toshiki Moriwaki, Shinichi Ushikura, Ayaka Imaoka, Tatsuya Sasaoka, Kazumasa Nomoto

Author Affiliations +

Proceedings Volume 7417, Organic Field-Effect Transistors VIII; 74170W (2009) https://doi.org/10.1117/12.828846
Event: SPIE Photonic Devices + Applications, 2009, San Diego, California, United States

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.

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Mao Katsuhara, Iwao Yagi, Akira Yumoto, Makoto Noda, Nobukazu Hirai, Ryoichi Yasuda, Toshiki Moriwaki, Shinichi Ushikura, Ayaka Imaoka, Tatsuya Sasaoka, and Kazumasa Nomoto "An flexible OLED driven by OTFT backplane manufactured using a scalable process", Proc. SPIE 7417, Organic Field-Effect Transistors VIII, 74170W (20 August 2009); https://doi.org/10.1117/12.828846

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