Light detection device

The light detection device includes a substrate, a plurality of pixels, a power line, a readout signal line, and a reset signal line. The pixel includes: a photodiode having a cathode electrode; an amplifier transistor having a gate connected to the cathode electrode, an input connected to the power line, and an output connected to the readout signal line; a reset transistor having a gate connected to the reset signal line, an input connected to the power line, and an output connected to the cathode electrode and a gate of the amplifier transistor; and a first contact hole that extends in the thickness direction of the substrate, connects the cathode electrode, the gate of the amplifier transistor, and the output of the reset transistor, and is located between the amplifier transistor and the reset transistor in the extension direction of the power supply line. 光检测装置包含：基板、多个像素、电源线、读出信号线、复位信号线。像素具有：光电二极管，具有阴极电极；放大器晶体管，栅极与阴极电极连接，输入与电源线连接，输出与读出信号线连接；复位晶体管，栅极与复位信号线连接，输入与电源线连接，输出与阴极电极以及放大器晶体管的栅极连接；和第1接触孔，在基板的厚度方向上