To provide a two-dimensional image reading device where an erroneous reading operation and the damage to a device are significantly suppressed by appropriately discharging the static electricity charge at an object to be detected, which is placed on a photosensor device.

There are provided a photosensor array 100, comprising a plurality of double gate photosensors 10 arrayed in a matrix form, a top gate driver 110 and a bottom gate driver 120 connected, respectively, to a top gate line 101 and a bottom gate line 102 which connect the double gate photosensors 10 in the row direction, and a driver 130 connected to a drain line 103, which connects the double gate photosensors 10 in the columnar direction. The electrostatic withstand voltage of the driver (bottom gate driver 120) connected to the conductive layer (bottom gate line 102) where a current is easy to concentrate under discharge of a static charge is set high.