Novel roll-to-roll lift-off patterned active-matrix display on flexible polymer substrate

Lo, Cheng‐Yao; Hiitola‐Keinänen, Johanna; Huttunen, Olli‐Heikki; Petäjä, Jarno; Hast, Jukka; Maaninen, Arto; Kopola, Harri; Fujita, Hiroyuki; Toshiyoshi, Hiroshi

doi:10.1016/j.mee.2009.02.001

Cited by 38 publications

(25 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 29 illustrates a R2R system used in manufacturing a novel electrode of display pixels [127]. In this system, bottom film experiences flexography, drying, vacuum sputter, lift-off, gravure printing and top film ex- periences vacuum sputter.…”

Section: R2r Web Handing For Flexible Electronics Fabricationmentioning

confidence: 99%

Inkjet printing for flexible electronics: Materials, processes and equipments

et al. 2010

View full text Add to dashboard Cite

Inkjet printing, known as digital writing technique, can directly deposit functional materials to form pattern onto substrate. This paper provides an overview of inkjet printing technologies for flexible electronics. Firstly, we highlight materials challenges in implementing flexible devices into practical application, especially for inkjet printing process. Then the micro/nano-patterning technologies of inkjet printing are discussed, including conventional inkjet printing techniques and electrohydrodynamic printing techniques. Thirdly, the related equipments on inkjet printing are shown. Finally, challenges for its future development are also discussed. The main purpose of the work is to condense the basic knowledge and highlight the challenges associated with the burgeoning and exciting field of inkjet printing for flexible electronics.flexible electronics, nanomanufacturing, organic thin film transistor, micro/nano-patterning, inkjet printing, electrohydynamics, roll-to-roll Citation: Overview of flexible electronics technologyFlexible electronics, also known as printable/organic electronics, represent a technology for building electronic circuits by depositing electronic devices onto flexible substrates. Realization of flexible electronics with performance equal to conventional microelectronics built on brittle semiconductor wafers, but in high mobilities, optical transparency, light-weight, stretchable/bendable formats and easy to print rapidly over large areas would enable many new applications [1-4] not satisfied by a traditional rigid electronics. The applications vary from medicine and biology to energy technology and space science [1,2], such as flexible display [4,5], thin film solar cell [6,7], large area sensors and actuators [8,9], shown in Figure 1. These applications are based on thin film transistors (TFTs) which have strong materials and processes contents. Flexible electronics *Corresponding authors (have open boundaries that move with its development and applications and is a highly interdisciplinary field. As a result, there are considerable opportunities for innovation and basic scientific research into new types of electronic materials, processes and equipments.The flexibility, a critical issue in flexible electronics, is one of the most important differences from traditional microelectronics. Polymer organics and inorganic materials are the two kind of materials adopted in flexible electronics. The polymer organics are generally believed to be well suited for these applications and naturally compatible with polymeric substrates. However, the electrical properties is not ideal when devices are fabricated with polymer organics. This leads to interest in the possibility of inorganic based flexible electronics [10]. It is a challenge to design a bendable and stretchable electronics based on inorganic materials due to their small fracture strain. The most basic realization is thin films of the inorganics are adopted as semiconductors, conductors and/or insulators on substrates to mini-

show abstract

Section: R2r Web Handing For Flexible Electronics Fabricationmentioning

confidence: 99%

Inkjet printing for flexible electronics: Materials, processes and equipments

et al. 2010

View full text Add to dashboard Cite

show abstract

“…Currently, the use of plastic based material has been employed due to additional feature of flexibility and cost of raw materials. However, the use of plastic based electronic was limited due to low thermal resistance and low elongation at break if roll to roll (R2R) [25,26] technique was employed to fabricate electronic circuit. To overcome these limitations, it can be employed cellulose based substrate.…”

Section: Introductionmentioning

confidence: 99%

An overview of feasibilities and challenge of conductive cellulose for rechargeable lithium based battery

Ummartyotin

Manuspiya

2015

Renewable and Sustainable Energy Reviews

View full text Add to dashboard Cite

“…Initial gold structures (40 nm) were evaporated on PET substrates through a shadow mask, forming the gate electrode on one substrate and the basis for the source and drain electrodes on the other. This metal deposition without highprecision structures could be done, for example, by the technique showed by Lo et al [30]. In that article, also the overall lamination concept is shown, where in the end the two separately processed substrates are laminated together.…”

Section: Roll-to-roll Compatible Transistor Process Detailsmentioning

confidence: 99%