IMAGING DEVICE, IMAGING SYSTEM, AND METHOD FOR DRIVING IMAGING DEVICE

摘要

An imaging device includes first and second photoelectric conversion portions, a charge holding portion, first and second transfer transistors, and an amplifier portion, wherein in a first control operation, from a state in which the first and the second transfer transistors are off, the first transfer transistor is turned on while the second transfer transistor remains off, in a second control operation, the first and the second transfer transistors are being on, and a difference between a control voltage provided in the first control operation to the first transfer transistor to turn on and a control voltage provided to the first transfer transistor to turn off is smaller than difference between a control voltage provided in the second control operation to the first transfer transistor to turn on and the control voltage provided to the first transistor to turn off.

主权项

1. An imaging device comprising:
a first photoelectric conversion portion which converts light into an electric charge; a second photoelectric conversion portion which converts light into an electric charge; a charge holding portion which holds an electric charge; a first transfer transistor which transfers an electric charge of the first photoelectric conversion portion to the charge holding portion; a second transfer transistor which transfers an electric charge of the second photoelectric conversion portion to the charge holding portion; and an amplifier portion which outputs a signal based on an electric charge of the charge holding portion, wherein in a first control operation, from a state in which both of the first transfer transistor and the second transfer transistor are off, the first transfer transistor is turned on while the second transfer transistor remains off, in a second control operation, both of the first transfer transistor and the second transfer transistor are being on, and a difference between a control voltage provided in the first control operation to the first transfer transistor to turn on the first transfer transistor and a control voltage provided to the first transfer transistor to turn off the first transfer transistor is smaller than a difference between a control voltage provided in the second control operation to the first transfer transistor to turn on the first transfer transistor and the control voltage provided to the first transfer transistor to turn off the first transfer transistor.