Professor Takao Someya (Graduate School of Engineering) and Associate Professor Tomoyuki Yokota (Graduate School of Engineering), in collaboration with Japan Display Inc (JDI), have succeeded in developing a sheet-type image sensor with both high resolution and high-speed readout. This is achieved by integrating a highly sensitive organic photodetector with a high mobility low-temperature polysilicon thin-film transistor. This makes it possible to capture and read out fingerprints and veins at high speed for biometric authentication, which requires high resolution, and to simultaneously measure biometrics and vital signs. The paper was published in the electronic edition of Nature Electronics on 20 January.