Hirohiko Fukagawa

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Organic light-emitting diodes (OLEDs) have been intensively studied as a key technology for next-generation displays and lighting. The efficiency of OLEDs has improved markedly in the last 15 years by employing phosphorescent emitters. However, there are two main issues in the practical application of phosphorescent OLEDs (PHOLEDs): the relatively short(More)
This paper describes our recent progress in the development of oxide thin-film transistors (TFTs) for use in flexible organic light-emitting diode (OLED) displays. The bending stability of oxide TFTs was investigated using In-Ga-Zn-O (IGZO) TFTs fabricated on a thin polyimide film. Back-channel-etched (BCE) TFTs on a plastic film using In-Sn-Zn-O (ITZO),(More)
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