CPC G06V 40/13 (2022.01) [G02B 6/003 (2013.01); H01L 27/14678 (2013.01)] | 16 Claims |
1. A biometric verification device, comprising:
a backlight module;
a photodetector, disposed on the backlight module;
a switching element, disposed on the backlight module, and electrically connected with the photodetector; and
at least one collimation structure, disposed on the backlight module, and having a first pinhole and a second pinhole therein,
wherein horizontal projections of the first pinhole and the second pinhole on the backlight module do not overlap with a horizontal projection of the photodetector on the backlight module,
wherein the first pinhole and the second pinhole are defined by a first collimation layer and a second collimation layer, respectively, and a ratio of a distance between the first pinhole and the second pinhole in a normal direction of the first collimation layer to a width of one of the first pinhole and the second pinhole falls within a range of 5 to 10.
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