New flexible, thin image sensor measures fingerprints, veins and biometric signals
Japan Display has developed a flexible, thin two-dimensional image sensor for high-definition biometric authentication and high-speed vital sign monitoring, following a research and development partnership with the University of Tokyo’s School of Engineering, the company announced.
By integrating low-temperature polysilicon thin-film transistors with high mobility and high-sensitivity organic photodectors, the sensor, only 15 micrometers thick, measures biometric information such as fingerprints, veins and pulse waves. The technology ensures high-speed readout at a speed of 41 frames per second and high-resolution imaging of 508 pixels per inch.
The sensor was designed for high security biometric authentication systems to inhibit replication and spoofing by obtaining both biometric information (fingerprints and veins) and biometric signals (pulse waves).
According to the announcement, the research received support from the Japan Science and Technology Agency (JST).
More details on the research can be reviewed in the British science magazine Nature Electronics.