International Display Workshops General Incorporated Association

Proceedings of the International Display Workshops Volume 27 (IDW '20)

Proceedings of the International Display Workshops Volume 27 (IDW '20)

Dec 9, 2020 - Dec 11, 2020
Virtual Conference

3:05 PM - 3:30 PM

[AMD3/AIS5-2(Invited)] A Conformable Imager Using LTPS TFT and Organic Photodetector for Biometric Sensing

*Hirofumi Kato1, Takashi Nakamura1, Tomoyuki Yokota2, Takao Someya2, Akio Takimoto1 (1. Japan Display Inc. (Japan), 2. The University of Tokyo (Japan))

LTPS Backplane, Organic Photodetector, Biometric sensor

https://doi.org/10.36463/idw.2020.0170

We developed an imager by using low-temperature polysilicon thin-film transistors on a plastic substrate together with organic photodetectors. By improving the driving scheme, the framerate of the imager was up to 19.5fps with a resolution of 508ppi that enables high-resolution imaging and high-speed sensing simultaneously. The conformable imager can be attached to the human skin directly and measure the various biometric data such as pulse wave, fingerprints, and veins.