Abstract
In this work, a novel active pixel sensor (APS) based on photodiode (PD)‐gated thin‐film transistor (TFT) is integrated under active matrix organic light‐emitting diode (AMOLED) display for optical fingerprint imaging. The optical design and simulation were presented to evaluate the light intensity reaching the sensor and the optical crosstalk between adjacent pixels was assessed based on diffraction simulation results. The analytical modelling along with measurement results of PD‐gated LTPS TFT were also reported. Our study shows that PD‐gated TFT under AMOLED can enable under‐display optical fingerprint sensing.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
