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6‐2: Invited Paper: An Imager with Organic Photodetectors Based on LTPS‐TFT Technology
Author(s) -
Nakamura Takashi,
Kato Hirofumi,
Kitamura Ayato,
Kimura Hiroyuki,
Takimoto Akio,
Yokota Tomoyuki,
Someya Takao
Publication year - 2021
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.14606
Subject(s) - photodetector , materials science , thin film transistor , conformable matrix , optoelectronics , near infrared spectroscopy , wavelength , optics , nanotechnology , physics , layer (electronics) , composite material
We have developed a high‐resolution 508 ppi conformable imager using low‐temperature polysilicon thin‐film transistors (LTPS TFTs) on a plastic substrate together with organic photodetectors which has high sensitivity in wavelength of visible and near‐infrared regions (NIR). Using a NIR light source, both images of fingerprints/veins and pulse waves are successfully obtained. By adding red light source, both red pulse wave and NIR pulse are measured to calculate percutaneous oxygen saturation.