Flexible Displays for Medical Applications

Organic light‐emitting diodes (OLED) displays are particularly attractive for medical applications partly because they are emissive. This chapter focuses on the utility of flexible displays, especially organic‐based optoelectronics, toward the development of integrated and miniaturized biochemical sensors. Even as researchers continue to strive for improvements in various aspects of flexible organic oxygen sensors, focus is on the following: enhancing the light out coupling from OLEDs, eliminating the OLED's post‐pulse electroluminescence tail, developing compatible fast response, low noise, and high external quantum efficiency organic photodiodes, for fully functional and standalone organic flexible sensing platforms. Oxygen sensing is very important for sensing other species including alcohol, lactate, and glucose, using the appropriate enzymatic reactions. The chapter presents a brief introduction to the optical sensing modalities most often used in flexible display‐based sensors. Coupled with integration for multi‐analyte sensing, multimodal sensors on wearable devices will enhance the robustness and accuracy of OLED‐based sensor platforms.