Fabrication of large-area touch sensors with conductive-polymer die-coating

Abstract

We developed fabrication process of a large-area flexible fabric type of touch sensors withi consists of PEDOT PSS-die-coating of 470 um-diameter fibers and their weaving. The developed system allowed the film with the sheet resistance of 4 kohm per square and the traveling speed of 4 m per minute. with established system, 100 m-long fiber was processed and woven, achieving Y-shirts size of fabric sensors. Their sensitivity is also characterized.