US Patent Issued to OmniVision Technologies on July 1 for "Optical fingerprint sensor with high aspect-ratio metal aperture structures" (Taiwanese Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,347,225, issued on July 1, was assigned to OmniVision Technologies Inc. (Santa Clara, Calif.).

"Optical fingerprint sensor with high aspect-ratio metal aperture structures" was invented by Shih-Hsin Hsu (Taipei, Taiwan) and Jau-Jan Deng (Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An under-display optical fingerprint sensors employing microlens arrays (MLAs) and an opaque aperture layer includes high aspect-ratio metal aperture structures for efficient angular signal filtering and stray light control. Instead of relying on one or more opaque aperture baffle-layers, embodiments disclosed herein utilize an image sensor's inherent metal la...