Optical detecting device, display device, and electronic equipment

摘要

An optical detecting device including: an emission unit that emits emitting light; a light-receiving unit that receives the emitting light reflected off an object; an amplifying unit that amplifies a received-light detection signal of the light-receiving unit; a detecting unit that detects position identifying information of the object based on a signal output from the amplifying unit; a determining unit that determines a position of the object based on the position identifying information; and a coupling capacitor provided between an output node of the amplifying unit and an input node of the detecting unit.