SENSOR COMPRISING CAPACITIVE-DETECTION PIXELS

摘要

Sensor (100) comprising capacitive-detection pixels (102) forming a matrix of N rows and M columns of pixels, each pixel comprising:- a detection capacitor (104); - a pre-charge transistor (106) linked to the detection capacitor and able to apply to the detection capacitor a pre-charge voltage issuing from a pre-charge row or column (108); - a read transistor (112) linked to the detection capacitor and able to carry out a transfer of electric charge stored in the detection capacitor to a read circuit (116); the sensor comprising N‑1 selection rows (126) distinct from the pre-charge row or column, each selection row being linked to the gates of the read transistors of one of the N rows of pixels and to the gates of the pre-charge transistors of one other of the N rows of pixels.