The Journal of The Institute of Image Information and Television Engineers
Online ISSN : 1881-6908
Print ISSN : 1342-6907
ISSN-L : 1342-6907
A Flexible AMOLED Display Driven by Organic TFTs with an Inkjetted Semiconductor Layer
Akihito MiyamotoYuko OkumotoKenichi SasaiKiyoyuki Morita
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2014 Volume 68 Issue 10 Pages J437-J441

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Abstract
A 4-inch 80-ppi flexible AMOLED display was fabricated using organic TFTs with an inkjetted semiconductor layer on polymer gate insulator film. To suppress variations in organic TFT (OTFT) characteristics, the process damage to polymer gate insulator was remedied by surface treatments, and organic semiconductor crystallinity was improved by controlling the film thickness, giving a threshold voltage uniformity of -0.2 ± 0.45 V. We also observed the non-degradation of the OTFT characteristics even after bending it 200 times over a 5-mm radius.
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© 2014 The Institute of Image Information and Television Engineers
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