14.1: <i>Distinquished Paper</i>: A 13.3‐in. 200‐dpi Flexible Electrophoretic Display Driven by OTFTs Manufactured Using High‐resolution Offset Printing

Akiyama, Ryuto; Kurihara, Kenichi; Yoneya, Nobuhide; Fukuda, Toshio; Abe, Hidetsugu; Yumoto, Akira; Yagi, Iwao; Tanaka, Masanobu; Nomoto, Kazumasa; Ueno, Hiroyuki; Masuichi, Mikio; Adachi, Hideki

doi:10.1002/j.2168-0159.2012.tb05738.x

Cited by 9 publications

(7 citation statements)

References 8 publications

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“…Printed electronics have attracted considerable attention because the printing process can be used to fabricate large-area electronic devises on flexible plastic substrates at low cost. These technologies are expected to be used in the manufacturing process for large-area flexible displays 1,2,3 , photovoltaic cells 4,5 , and low-cost radio frequency identification tags 6,7,8 . Although various printable materials, such as metal pastes and conductive polymer inks, have been developed, silver (Ag) nanoparticle ink is one of the most promising candidates for printable electrodes with high conductivity at low sintering temperature.…”

Section: Introductionmentioning

confidence: 99%

Improvement of mechanical durability on organic TFT with printed electrodes prepared from nanoparticle ink

Sekine

Ikeda²,

Kosakai³

et al. 2014

Applied Surface Science

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We investigated a mechanism of improving adhesiveness depending on sintering temperature for printed silver (Ag) electrodes prepared from nanoparticle ink on an insulating polymer layer as the under layer. The adhesion strength significantly improved by sintering the Ag electrodes at a temperature above the glass transition temperature (Tg) of the polymer layer. In the sample with improved adhesiveness, the interfacial fusion between the printed Ag electrodes and polymer layer was observed in a cross sectional scanning electron microscope image. Based on this mechanism, we have successfully demonstrated the improvement in mechanical durability of organic thin-film transistors (TFTs) with printed Ag electrodes. The degradation of the organic TFTs after applying bending stress was significantly suppressed by interfacial fusion.

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Section: Introductionmentioning

confidence: 99%

Improvement of mechanical durability on organic TFT with printed electrodes prepared from nanoparticle ink

Sekine

Ikeda²,

Kosakai³

et al. 2014

Applied Surface Science

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“…The proposed process uses this feature to enable the printing of 200‐dpi flexible electrophoretic displays. [ 16 ]…”

Section: Fabrication Of Printed Electrodesmentioning

confidence: 99%

Biosignal Amplifiers Based on Low‐Noise Organic Transistors with Printed Electrodes

Kimura

Uemura

Shibafuji

et al. 2023

Adv Elect Materials

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The monitoring of microvolt‐level biosignals such as electroencephalograms requires the application of low‐noise signal amplifier circuits, which, for single‐use cases, must be fabricated for disposability using low‐cost manufacturing techniques. One promising solution for the production of low‐cost amplifier circuits for digital biosensing is the emerging technology of low‐noise printed circuits. Here, a low‐noise‐electrode printing process for organic transistors that can carry out precision measurement of brain activity using a low‐noise organic amplifier is proposed. In the transistor fabrication process, Ag electrodes are processed via flat stamp parallel printing, and fine‐process optimization to minimize the charge‐trapping effect enables a three‐order reduction in transistor noise. The low‐noise transistors are used to produce an organic pseudo‐complementary metal‐oxide‐semiconductor amplifier with a small noise level of 2.2 µVp‐p at 10 Hz, which enables precision brain wave monitoring in a close correlation with signals obtained using a commercialized measurement system.

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“…Their unique features over conventional, rigid, glass-based flat panel displays (such as being lightweight, thin, and mechanically flexible) strongly suggest that OTFTs are suitable components for driving flexible displays [4][5][6]. As a matter of fact, some prototypes compatible with slow-speed operation of the organic transistor backplane have also performed well in the display field and its market [7,8].…”

Section: Introductionmentioning

confidence: 96%

Commercially applicable, solution-processed organic TFT and its backplane application in electrophoretic displays

Park¹,

Lee²,

Na³

et al. 2015

Solid-State Electronics

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14.1: Distinquished Paper: A 13.3‐in. 200‐dpi Flexible Electrophoretic Display Driven by OTFTs Manufactured Using High‐resolution Offset Printing

Cited by 9 publications

References 8 publications

Improvement of mechanical durability on organic TFT with printed electrodes prepared from nanoparticle ink

Improvement of mechanical durability on organic TFT with printed electrodes prepared from nanoparticle ink

Biosignal Amplifiers Based on Low‐Noise Organic Transistors with Printed Electrodes

Commercially applicable, solution-processed organic TFT and its backplane application in electrophoretic displays

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