Flexible biometric sensor for hand scanning
AssigneeHID Global Corporation
InventorsDaniel Henri Raguin, George William McClurg
Life of this patent
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Abstract
A biometric scanning apparatus that includes a flexible pixelated sensor array configured to directly detect skin topology features. The sensor array is shaped into non-planar configurations with multiple surface portions oriented at different angles to ergonomically conform to natural hand anatomy. The flexible array, fabricated using thin-film transistor technology on ultrathin substrates, simultaneously captures fingerprints, palm prints, and thumb prints during a single hand placement. The pixelated array detects ridge/valley differences through optical, electrical, or ultrasonic sensing to generate standardized biometric templates.
Claims20
A system comprising:
- one or more hardware processors;
- and
- at least one machine-storage medium for storing instructions that, when executed by the one or more hardware processors, cause the one or more hardware processors to perform operations comprising:
- communicating with a flexible pixelated sensor array configured to directly detect skin topology features, the flexible pixelated sensor array including pixels arranged to detect signal differences between skin ridge contact locations and skin valley locations, the flexible pixelated sensor array being shaped into a non-planar configuration having one or more surface portions oriented at different angles relative to each other;
- and
- causing the flexible pixelated sensor array to capture biometric features from multiple portions of a user's hand during a single hand placement.
A method comprising:
- communicating with a flexible pixelated sensor array configured to directly detect skin topology features, the flexible pixelated sensor array including pixels arranged to detect signal differences between skin ridge contact locations and skin valley locations, the flexible pixelated sensor array being shaped into a non-planar configuration having one or more surface portions oriented at different angles relative to each other;
- and
- causing the flexible pixelated sensor array to capture biometric features from multiple portions of a user's hand during a single hand placement.
A method of manufacturing a flexible pixelated sensor array, comprising:
- fabricating a thin-film transistor (TFT) array on a flexible substrate, the TFT array including pixels configured to detect signal differences between skin ridge contact locations and skin valley locations;
- patterning the pixels of the TFT array in a regular grid on the flexible substrate during manufacturing;
- separating the flexible substrate with the patterned TFT array from a temporary support backplane;
- and
- shaping the flexible substrate with the patterned TFT array into a non-planar configuration having one or more surface portions oriented at different angles relative to each other, the shaped configuration being supported by a mechanical structure to maintain the non-planar shape while allowing partial compliance to pressure from hand contact.
Dependencies are inferred from the claim text.