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      Integration of a 2D Touch Sensor with an Electroluminescent Display by Using a Screen-Printing Technology on Textile Substrate

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          Abstract

          Many types of solutions have been studied and developed in order to give the user feedback when using touchpads, buttons, or keyboards in textile industry. Their application on textiles could allow a wide range of applications in the field of medicine, sports or the automotive industry. In this work, we introduce a novel solution that combines a 2D touchpad with an electroluminescent display (ELD). This approach physically has two circuits over a flexible textile substrate using the screen-printing technique for wearable electronics applications. Screen-printing technology is widely used in the textile industry and does not require heavy investments. For the proposed solution, different layer structures are presented, considering several fabric materials and inks, to obtain the best results.

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          Most cited references40

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          Printable elastic conductors with a high conductivity for electronic textile applications

          The development of advanced flexible large-area electronics such as flexible displays and sensors will thrive on engineered functional ink formulations for printed electronics where the spontaneous arrangement of molecules aids the printing processes. Here we report a printable elastic conductor with a high initial conductivity of 738 S cm−1 and a record high conductivity of 182 S cm−1 when stretched to 215% strain. The elastic conductor ink is comprised of Ag flakes, a fluorine rubber and a fluorine surfactant. The fluorine surfactant constitutes a key component which directs the formation of surface-localized conductive networks in the printed elastic conductor, leading to a high conductivity and stretchability. We demonstrate the feasibility of our inks by fabricating a stretchable organic transistor active matrix on a rubbery stretchability-gradient substrate with unimpaired functionality when stretched to 110%, and a wearable electromyogram sensor printed onto a textile garment.
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            Effective Approaches to Improve the Electrical Conductivity of PEDOT:PSS: A Review

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              Smart Electronic Textiles

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                Author and article information

                Journal
                Sensors (Basel)
                Sensors (Basel)
                sensors
                Sensors (Basel, Switzerland)
                MDPI
                1424-8220
                02 October 2018
                October 2018
                : 18
                : 10
                : 3313
                Affiliations
                [1 ]Textile Research Institute (AITEX), 03801 Alicante, Spain; josue.ferri@ 123456aitex.es (J.F.); jmoreno@ 123456aitex.es (J.M.)
                [2 ]Departamento de Comunicaciones, Universitat Politècnica de València, 03801 Alcoy, Spain; rllinares@ 123456dcom.upv.es
                [3 ]Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, 46022 Valencia, Spain; cperezf@ 123456eln.upv.es
                Author notes
                [* ]Correspondence: egarciab@ 123456eln.upv.es ; Tel.: +34-96-387-7608
                Author information
                https://orcid.org/0000-0002-8084-6182
                https://orcid.org/0000-0002-9745-8485
                Article
                sensors-18-03313
                10.3390/s18103313
                6210437
                30279387
                5bfea5e0-9ce7-4e66-8436-ea7e73fd5730
                © 2018 by the authors.

                Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

                History
                : 12 September 2018
                : 28 September 2018
                Categories
                Article

                Biomedical engineering
                2d touchpad,electroluminescent,wearable sensing,textile,screen-printing technology

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