/Optical Fingerprint Sensor With Enhanced Anti-counterfeiting Features
Abstract

An apparatus includes a pixel array and micro lenses disposed above the pixel array. The pixel array includes sensing pixels and dark pixels spread out among the sensing pixels. The dark pixels have a repetitive pattern of a unit tile repeated along rows and columns of the pixel array.

Full Text

What is claimed is:

An apparatus includes a pixel array and micro lenses disposed above the pixel array. The pixel array includes sensing pixels and dark pixels spread out among the sensing pixels. The dark pixels have a repetitive pattern of a unit tile repeated along rows and columns of the pixel array.
Timeline
Filed
06/01/2026
Published
09/24/2026
Granted
Not Available
IPC Codes(4)
G06V 40/13:Sensors therefor
G06V 40/12:Fingerprints or palmprints
H10F 39/00:Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group e.g. radiation detectors comprising photodiode arrays