An electronic device, comprising a display screen, an infrared sensor and a light blocking element, wherein the display screen comprises a display area and a non-display area. The infrared sensor comprises a transmitter and a receiver. The transmitter is located below the non-display area. The transmitter is used to emit infrared light. The receiver is used to receive the infrared light. The light blocking element is arranged between the transmitter and the display area, and the light blocking element is used to block the infrared light emitted by the transmitter from entering into the display area.