ELECTRONIC DEVICE WITH UNDER-SCREEN INFRARED BIOSENSOR

摘要

Provided is an electronic device (100) with an under-screen infrared biosensor. The electronic device includes a backlight module (10), a display panel (20), a light-transmitting protection plate (30), an optical sensor (40) and an infrared light source (50), wherein the backlight module (10) provides visible light (VL) to travel upwards, and has a reflective layer (11) to block the visible light (VL) from traveling downwards; the display panel (20) is arranged above the backlight module (10) and displays information according to the visible light (VL); the light-transmitting protection plate (30) is arranged above the display panel (20) and allows the information to pass through same; the optical sensor (40) is arranged under the backlight module (10); the infrared light source (50) provides infrared light (IR1) to a living body (F) located on or above the light-transmitting protection plate (30); the living body (F) reflects the infrared light (IR1) to produce reflected infrared light (IR2); and the reflected infrared light (IR2) is received by the optical sensor (40) through the light-transmitting protection plate (30), the display panel (20) and the backlight module (10), such that the optical sensor (40) obtains an image signal representing an image of the living body (F), and thereby realizing an under-screen image sensing function.