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Polyvinylidene fluoride- trifluoroethylene (PVDF–TrFE) has been utilized widely for pressure sensing, healthcare monitoring, and energy harvesting. In order to integrate piezoelectric elements into flexible thin film electronics, researchers have studied depositing PVDF–TrFE via printing methods. Screen printing, in particular, has been utilized by several groups but printing methodology and characterization procedures have varied significantly between works. In this work, a simple, low-cost, flexible method is described. The resulting films are characterized for their piezoelectric character and temperature tolerance. The printed films have a piezoelectric coefficient comparable to previous work (26.24 pC/N) and demonstrate no meaningful degradation in piezoelectric character up to 110C.

The marriage of organic thin‐film transistors (OTFTs) and flexible mechanical sensors has enabled previously restricted applications to become a reality. Counterintuitively, the addition of an OTFT at each sensing element can reduce the overall complexity so that large‐area, low‐noise sensors can be fabricated. The best‐performing instance of this is the active matrix, used in display applications for many of the same reasons, and nearly any type of flexible mechanical sensor can be incorporated into these structures. In this Progress Report, some of the flexible sensor devices that have taken advantage of these mechanical properties are highlighted, examining the advantages that OTFTs offer in the hybrid integration of local amplification and switching. In particular, the current research on resistive pressure sensors, capacitive pressure sensors, resistive or piezoresistive strain sensors, and piezoelectric sensors is identified and enumerated.

A burn‐in measurement technique was realized and tested for both standard and high dynamic range (HDR) organic light emitting diode (OLED) displays. The proposed measurement targets analyze wide color gamut, non‐RGB primary, and HDR displays. The system was implemented in commercial OLED displays to validate the proposed measurement system.

Conducting remote laboratory-based courses in electronics is a major challenge primarily because of the hardware requirements. This paper describes a laboratory course on information display technologies specially designed and implemented for remote learning. The course was successfully offered during the COVID-19 lockdown and has an online instruction component to introduce the concepts, as well as a laboratory part involving hands-on work. The course covers experiments on fundamental concepts related to perception and color, liquid crystal displays (LCD), light-emitting diodes (LEDs), and a final project where a mechanical display is designed and built. Course assessment based on an anonymous survey shows the hands-on work enhanced the student learning and improved course understanding from an average of 2.5/5