Solid-state image sensing device and electronic device

摘要

The present invention provides a technique for achieving higher picture quality of a captured image by reducing noise which occurs at the time of resetting in a solid-state image sensing device and the like. A pixel array in a solid-state image sensing device includes a plurality of pixels and includes an OB pixel region and an effective pixel region. The solid-state image sensing device has a signal processing unit outputting a pixel signal of each of the pixels in the effective pixel region on the basis of the signal level of a signal output from each of the pixels. The solid-state image sensing device obtains a signal without applying a reset signal to each of the pixels in the OB pixel region, obtains the difference between the signal and a signal of a pixel in the effective pixel region, and outputs an image signal.

主权项

1. A solid-state image sensing device comprising:
a pixel array including an OB (optical black) pixel region and an effective pixel region; a control circuit configured to:
supply a drive signal to pixels in the pixel array to output signals based on voltages respectively held in the pixels, andsupply a reset signal to pixels in the effective pixel region of the pixel array, during the supply of the drive signal, to reset voltages respectively held in the pixels; a signal processing unit configured to:
receive signals of the pixels in the effective pixel region on the basis of a differences respectively between signal levels of signals output from the pixels in the effective pixel region prior to the reset signal and reset levels of signals output from pixels in the effective pixel region after the reset signal, andreceive signals from pixels in the OB pixel region, andoutput an image signal of the pixels in the effective pixel region on the basis of the received signals of the pixels in the effective pixel region and the received signals from pixels in the OB pixel region; wherein the control circuit does not supply a reset signal to pixels in the OB pixel region of the pixel array during the supply of the drive signal.