JP2018078630A5 - - Google Patents

Claims (12)

A photoelectric conversion unit that photoelectrically converts light to generate charges;
A first wiring connected via a first switch for supplying a reference voltage and a first switch; a second wiring for supplying a signal voltage or a field through voltage based on the electric charge generated by the photoelectric conversion unit; A capacitor having a second electrode connected via
An output unit for outputting a voltage of the first electrode;
An imaging device comprising: In the capacitor, the first wiring and the first electrode are connected by the first switch, and the second wiring to which the field through voltage is supplied and the second electrode are connected by the second switch. The first state, the first wiring and the first electrode are not connected by the first switch, and the second wiring to which the signal voltage is supplied and the second electrode are connected by the second switch. A second state,
The imaging device according to claim 1, wherein the output unit outputs a voltage of the first electrode in at least one of the first state and the second state. In the capacitor, the connection between the first wiring and the first electrode is disconnected by the first switch from the first state where the first wiring and the first electrode are connected by the first switch. The imaging device according to claim 2, wherein the imaging element transits to the second state. The imaging according to claim 2 or 3, wherein the capacitor makes a transition from the first state to the second state while maintaining a voltage between the first electrode and the second electrode in the first state. element. The reference voltage is applied to the first electrode in the first state,
5. The imaging device according to claim 2, wherein the field-through voltage is applied to the second electrode in the first state, and the signal voltage is applied to the second electrode in the second state. The imaging device according to claim 2, wherein the first electrode is in a floating state in the second state. The signal voltage is applied to the second electrode after the connection between the first wiring and the first electrode is disconnected by the first switch in the second state. The imaging device according to claim 1. A discharge unit for discharging the charge generated in the photoelectric conversion unit;
A third switch connected to the discharge portion and the second wiring;
A fourth switch for connecting the photoelectric conversion unit and the second wiring,
The third switch connects the discharge unit and the second wiring in the first state,
The imaging device according to claim 2, wherein the fourth switch connects the photoelectric conversion unit and the second wiring in the second state. The imaging device according to claim 8, wherein the discharge unit is a third wiring that supplies the reference voltage. The imaging device according to claim 8, wherein the discharge unit is the first wiring. 11. The imaging according to claim 8, wherein the field-through voltage is a voltage when the discharge unit and the second electrode are connected by the second switch and the third switch. element. The imaging device according to any one of claims 1 to 11,
An imaging device comprising: a generation unit that generates image data based on a signal output from the imaging element.