Detection device, fingerprint detection device, and vein detection device

A detection device comprising:

• a plurality of optical sensors arranged in a matrix having a row-column configuration;
• a plurality of switching elements, a plurality of gate lines, and a plurality of signal lines provided corresponding to the optical sensors;
• a detection circuit configured to be supplied with signals from the optical sensors through the signal lines;
• and
• a signal line selection circuit configured to switch a coupling state between the signal lines and the detection circuit, wherein
• a drive signal is supplied to the gate lines row by row to bring the switching elements belonging to a predetermined row into a coupled state,
• the signal line selection circuit is configured to couple the signal lines to the detection circuit column by column in a predetermined order in a reading period of the predetermined row, and
• a reset potential is supplied to the optical sensors and the signal lines belonging to the predetermined row after completion of the reading period of the predetermined row and before start of the reading period of a row next to the predetermined row.