Solid-state imaging device and imaging apparatus

1. A solid-state imaging device comprising:

a pixel array section formed by a plurality of pixels which are disposed in the form of a matrix having an effective pixel region and a light-shielded pixel region which are shielded from light;

a row scan section selecting and controlling each row of pixels of the pixel array section to output a signal from each of the pixels of the selected row of pixels to a column signal line provided in association with the row of pixels; and

wherein the light-shielded pixel region includes an optical black pixel region formed by pixels generating a signal serving as a reference for a black level and a dummy pixel region which is formed by pixels whose signal output path to the column signal line is interrupted to discharge an electrical charge generated at each pixel to a power supply and which is provided between the optical black pixel region and the effective pixel region,

wherein the row scan section does not select the dummy pixel region of the light-shielded pixel region.

2. The solid-state imaging device according to claim 1 , each of the pixels which includes a photoelectric conversion device and a transistor reading out an electric charge obtained by photoelectric conversion at the photoelectric conversion device, and which are illuminated by light.

3. The solid-state imaging device according to claim 1 , further comprising an A-D conversion section converting the signal output from the signal line into a digital signal.

4. The solid-state imaging device according to claim 1 , each of the effective pixel region, the optical black pixel region, and the dummy pixel region is formed by a group of pixels including a plurality of pixels arranged in a column direction and sharing the floating diffusion portion.

5. The solid-state imaging device according to claim 1 , wherein the row scan section includes a plurality of control circuits outputting a control signal for collectively selecting and controlling a group of pixel belonging to a common row, the control circuits performing a series of selecting and controlling operations to read data starting with the optical black pixel region up to the effective pixel region such that only the optical black pixel region and the effective pixel region are continuously read with the dummy pixel region left unread.

6. The solid-state imaging device according to claim 1 , each of the effective pixel region, the optical black pixel region, and the dummy pixel region is formed by a group of pixels including a plurality of pixels arranged in a column direction and sharing the floating diffusion portion.

7. An imaging apparatus comprising a solid-state imaging device, wherein the solid-state imaging device includes:

a pixel array section formed by a plurality of pixels which are disposed in the form of a matrix having an effective pixel region and a light-shielded pixel region which are shielded from light;

a row scan section selecting and controlling each row of pixels of the pixel array section to output a signal from each of the pixels of the selected row of pixels to a column signal line provided in association with the row of pixels; and

a processor controlling at least the row scan section and

wherein the light-shielded pixel region includes an optical black pixel region formed by pixels generating a signal serving as a reference for a black level and a dummy pixel region which is formed by pixels whose signal output path to the column signal line is interrupted to discharge an electrical charge generated at each pixel to a power supply and which is provided between the optical black pixel region and the effective pixel region,

wherein the row scan section does not select the dummy pixel region of the light-shielded pixel region.

8. The solid-state imaging device according to claim 7 , each of the pixels which includes a photoelectric conversion device and a transistor reading out an electric charge obtained by photoelectric conversion at the photoelectric conversion device, and which are illuminated by light.

9. The solid-state imaging device according to claim 7 , further comprising an A-D conversion section converting the signal output from the signal line into a digital signal.

10. The solid-state imaging device according to claim 7 , wherein the row scan section includes a plurality of control circuits outputting a control signal for collectively selecting and controlling a group of pixel belonging to a common row, the control circuits performing a series of selecting and controlling operations to read data starting with the optical black pixel region up to the effective pixel region such that only the optical black pixel region and the effective pixel region are continuously read with the dummy pixel region left unread.