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A TFT‐based Random Accessible Active Pixel Sensor with A Logarithmic‐Exponential Response
Author(s) -
Shi Rui,
Xu Yitong,
Qi Yihong,
Wang Kai
Publication year - 2020
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.13737
Subject(s) - logarithm , pixel , exponential function , sensitivity (control systems) , dynamic range , computer science , image sensor , exponential decay , range (aeronautics) , computer vision , artificial intelligence , electronic engineering , mathematics , physics , materials science , engineering , mathematical analysis , nuclear physics , composite material
In this work, we propose a novel 2‐TFT random accessible active pixel sensor, and verify the circuit performance from the simulation results. Our study shows that the proposed sensor has random accessibility and a wide dynamic range, and it also has a logarithmic‐exponential response with a higher sensitivity under a low light illumination, improves the aperture ratio, and is promising to applications such as fingerprint imaging and flat‐panel x‐ray imaging.