Photodetecting device and display apparatus

A photodetecting device comprising:

• a photodetecting element that receives incident light;
• a reset signal line;
• a readout signal line;
• a signal control section configured to output a pulse signal as a reset signal to the reset signal line, and outputs a readout signal to the readout signal line, the pulse signal generating a second voltage having a potential difference ΔV_RST with respect to a first voltage;
• an accumulation node connected to the reset signal line via the photodetecting element, the accumulation node having a potential that varies with an amount of light received by the photodetecting element during a sensing period from when the reset signal is supplied to when the readout signal is supplied;
• and
• a sensor switching element configured to read out a signal corresponding to the variation of the potential of the accumulation node, and outputs the signal to the output line, in accordance with the readout signal,
• wherein the signal control section applies a voltage at a level between the first voltage and the second voltage to the reset signal line, during at least a part of the sensing period.