A biometric verification device includes a backlight module, a photodetector, a switching element, and at least one collimation structure. The photodetector is disposed on the backlight module. The switching element is disposed on the backlight module and electrically connected with the photodetector. The at least one collimation structure is disposed on the backlight module and has a first pinhole and a second pinhole. The horizontal projections of the first pinhole and the second pinhole on the backlight module do not overlap with the horizontal projection of the photodetector on the backlight module.