Transfer printing for fabrication of flexible RGB color e‐paper

Wang, Li; Liu, Gui-Shi; Wang, Yucheng; Su, Jing; Wang, Xi-Du; Zeng, Xi; Zhang, Zi-Shou; Deng, Shijie; Shieh, Han–Ping D.; Yang, Bo‐Ru

doi:10.1002/jsid.562

Cited by 16 publications

(8 citation statements)

References 18 publications

(24 reference statements)

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“…The patterned microcapsule film was obtained by filling a microcapsule slurry into a PDMS mold with low surface energy (Figure a (4,5)) . The retained adhesion of the AgNW/OCA film and the low surface energy of the mold enabled the successful transfer of the microcapsule layer (Figure a (6)).…”

Section: Methodsmentioning

confidence: 99%

“…The patterned microcapsule film was obtained by filling a microcapsule slurry into a PDMS mold with low surface energy (Figure 1a (4,5)). 31 The retained adhesion of the AgNW/OCA film and the low surface energy of the mold enabled the successful transfer of the microcapsule layer (Figure 1a (6)). UV-curable adhesive was coated onto the microcapsule layer as an insulating layer that smooths the top surface and avoids short circuits between the top and bottom electrodes (Figure 1a (7)).…”

Section: ■ Introductionmentioning

confidence: 99%

“…The electrophoretic system is generally encapsulated in resin microcapsules with diameters of tens of micrometers. This encapsulated structure enables the EPD film to be coated on flexible substrates in the form of a microcapsule slurry. , To break the bottleneck of EPD in application, there have been many studies on E-ink materials, image quality, driving waveform, full-color EPD, , and response time . However, these studies were mostly performed on rigid substrates, and, up to now, flexible EPDs have only been reported on plastic and metal foils.…”

Section: Introductionmentioning

confidence: 99%

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Constructing Electrophoretic Displays on Foldable Paper-Based Electrodes by a Facile Transferring Method

Wang

Liu

et al. 2020

ACS Appl. Electron. Mater.

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Paper-based electronics are gaining increasing attention because of their merits of low cost, degradability, and foldability. However, the roughness and porosity of paper are not conducive to the deposition of functional layers by conventional film-coating methods such as solution processing and vacuum evaporation. In this work, a facile yet feasible process to fabricate a paper-based electrophoretic display (EPD) was demonstrated. This device combines the eco-friendly characteristic of paper with the low power consumption of an EPD by using optically clear adhesive (OCA) and silver nanowires (AgNWs). The AgNW/OCA/paper composite layer could maintain high conductivity after 1000-cycle folding tests, whereas AgNWs spray-deposited on printing paper lost their conductivity after only 400 folding–unfolding cycles. To optimize the trade-off between the optical transmittance and the sheet resistance of the AgNW/OCA top electrode, the concentration of AgNW ink and the surface energy of the UV-curable polymer layer were adjusted, achieving a figure-of-merit value of 287. The paper-based EPD demonstrated in this work has the merits of foldability, disposability, environmental friendliness, low cost, and low power consumption, presenting an alternative for future application scenarios of displays.

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Section: Methodsmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Constructing Electrophoretic Displays on Foldable Paper-Based Electrodes by a Facile Transferring Method

Wang

Liu

et al. 2020

ACS Appl. Electron. Mater.

Self Cite

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“…Achieving good color with a single imaging layer is vital for scalable production. Concerning EPDs, it has been demonstrated in the lab that colored dispersions can be immobilized into predefined locations by inkjet printing or by a transfer process, 11,12 but a high-throughput manufacturing process has yet to be developed. One imaging layer composed of the same material throughout the entire display is ideal, as it would eliminate the need for spatially precise deposition of materials.…”

Section: Introductionmentioning

confidence: 99%

Electrophoretic display comprising black, white, red, and yellow particles

Zang¹,

Lin²,

Du³

et al. 2022

J Soc Info Display

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A four‐particle electrophoretic display (EPD), Spectra™ 3100, was released in 2021. It targets electronic shelf label applications and signage applications by providing four primary optical states of black, white, red, and yellow, as well as dithering capability to show graphic images. Specially engineered black, white, red, and yellow particles in the electrophoretic ink respond to different electric fields to show pigment intrinsic colors on the display. The imaging film produced from this technology can reach a typical contrast ratio of 30:1 while maintaining a maximum driving voltage of ±15 V. The vibrant red and yellow colors are ideal for highlighting. Consistent optical performances are achieved for all four optical states across the operating temperature range of 0°C to 40°C for a typical indoor environment. The electrophoretic ink is coated and sealed in a thin‐film Microcup® structure using an additive and high yield roll‐to‐roll manufacturing process to produce the imaging film. Active matrix (AM) module integration follows the conventional EPD module production process of lamination between the imaging film and thin‐film transistor (TFT) backplane.

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“…As for power consumption, compared with OLED and LCD, EPD has superior advantages owing to its inherent behavior of bistability, 6 as shown in Table 1. EPDs also have disadvantages like indoor color performance, especially under dim light ambience 8 . Electronic ink is generally made of electrophoretic particles with positive charges and negative charges both in nonpolar solution.…”

Section: Introductionmentioning

confidence: 99%

Understanding the mechanisms of electronic ink operation

Yang

Zeng

et al. 2020

J Soc Info Display

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Owing to the unique features of electronic ink displays, including the bistability, paper‐like appearance, and sunlight visibility, electronic ink displays have been applied in many Internet of Things (IoT) fields. We reviewed mechanisms that have been proposed to be essential for electro‐optical behavior of electronic ink displays. This review might facilitate beginners to start their research in electronic ink studies.

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Transfer printing for fabrication of flexible RGB color e‐paper

Cited by 16 publications

References 18 publications

Constructing Electrophoretic Displays on Foldable Paper-Based Electrodes by a Facile Transferring Method

Constructing Electrophoretic Displays on Foldable Paper-Based Electrodes by a Facile Transferring Method

Electrophoretic display comprising black, white, red, and yellow particles

Understanding the mechanisms of electronic ink operation

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