34‐4: A 270fps Large‐Area Organic Optical Biosensor Array for Digital Physiology and Vein Biometrics

Abstract

This paper presents an optical biosensor system including a TFT (thin‐film transistor) sensor array and silicon IC to capture vein images, record PPG (photoplethysmography) signals and generate blood perfusion images. The sensing area is 1200 mm2 including 21168 pixels and SNR (signal‐to‐noise ratio) is 56 dB when FPS (frames per second) is 270.