Work

Optical design strategy for under-display biometric imaging solution

Year: 2023

Type: conference-paper

Abstract: This work suggests a design strategy for realizing under-display biometric imaging solutions which can recognize fingerprints and veins. Using a red-light source instead of an additional near-infrared light source, and a collimator with a microlens array directs the reflected light to the detector. Microlens array is optimized with ray-tracing simulation for signal-to-noise ratio and light harvesting performance. Organic image sensor with high pixel density and a large area is suggested for recognizing fingerprints and veins. Ray tracing simulation with designed line patterns confirmed that the integrated system is capable to recognize both fingerprints and veins.

DOI: 10.1117/12.2677176

Authors: Sangin Hahn, Junghoon Yang, Yeon-Wha Oh, Il-Suk Kang, Sang-Hee Ko Park, Seunghyup Yoo

Institutions: Korea Advanced Institute of Science and Technology, National NanoFab Center

Language: English

Topic: Biometric Identification and Security

Subfield: Signal Processing

Field: Computer Science

Domain: Physical Sciences

Open Access status: gold

OpenAlex ID: W4385962824

FWCI:

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