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 supplying a signal to each of pixels included in the pixel array to thereby control driving of each of the pixels; and a signal processing unit outputting a pixel signal of each of the pixels in the effective pixel region on the basis of a signal level of a signal output from each of the pixels, wherein the control circuit performs, on each of the pixels in the OB pixel region, a control of a supply timing of a drive signal for reducing noise caused by application of a reset signal for resetting charges held in each of the pixels, and wherein the signal processing unit receives an input of a signal from each of the pixels in the OB pixel region, obtains a signal level of each of the pixels in which noise caused by application of the reset signal is reduced, and outputs an image signal of each of the pixels in the effective pixel region on the basis of the difference between the obtained signal level and a signal level according to the charges accumulated in each of the pixels in the effective pixel region.