Solid-state imaging device and electronic apparatus
The present technology relates to a solid-state imaging device and an electronic apparatus that enable simultaneous acquisition of a signal for generating a high dynamic range image and a signal for detecting a phase difference. The solid-state imaging device includes a plurality of pixel sets each including color filters of the same color, for a plurality of colors, each pixel set including a plurality of pixels. Each pixel includes a plurality of photodiodes PD. The present technology can be applied, for example, to a solid-state imaging device that generates a high dynamic range image and detects a phase difference, and the like.
1. A pixel array circuit comprising:
first, second, third, and fourth pixel sets arranged in a 2x2 matrix in a plan view, each of the first, second, third and fourth pixel sets including four pixels, each of the pixels including two photoelectric conversion parts, wherein
the first and fourth pixel sets are configured to produce pixel signals corresponding to light in a first range of wavelengths,
the second pixel set is configured to produce pixel signals corresponding to light in a second range of wavelengths different than the first range of wavelengths,
the third pixel set is configured to produce pixel signals corresponding to light in a third range of wavelengths different than the first and second range of wavelengths,
each of the photoelectric conversion parts of the four pixels in the first pixel set are arranged in a first orientation,
each of the photoelectric conversion parts of the four pixels in the second pixel set are arranged in a second orientation perpendicular to the first orientation,
each of the photoelectric conversion parts of the four pixels in the third pixel set are arranged in the second orientation, and
each of the photoelectric conversion parts of the four pixels in the fourth pixel set are arranged in the first orientation.
2. The pixel array circuit according to claim 1 , wherein the first range of wavelengths corresponds to a green color, the second range of wavelengths corresponds to a red color, and the third range of wavelengths corresponds to a blue color.
3. The pixel array circuit according to claim 1 , wherein the photoelectric conversion parts are photodiodes.
4. The pixel array circuit according to claim 1 , wherein the photoelectric conversion parts have a shape with a major axis, the major axis of the photoelectric conversion parts in the first orientation extending in a first direction, and the major axis of the photoelectric conversion parts in the second orientation extending in a second direction perpendicular to the first direction.
5. The pixel array circuit according to claim 1 , wherein the first and fourth pixel sets respectively include a first color filter to produce a first color corresponding to the first range of wavelengths, the second pixel set includes a second color filter to produce a second color corresponding to the second range of wavelengths, and the third pixel set includes a third color filter to produce a third color corresponding to the third range of pixel wavelengths.
6. The pixel array circuit according to claim 1 , wherein the photoelectric conversion parts are isolated from each other by an insulating layer.
7. The pixel array circuit according to claim 1 , further comprising:
a charge holding part that holds charges generated in the photoelectric conversion parts, the charge holding part adding and outputting charges generated in the photoelectric conversion parts.
8. The pixel array circuit according to claim 7 , wherein the charge holding part adds and outputs charges generated in the photoelectric conversion parts of all the pixels in each pixel set.
9. An imaging device comprising:
a pixel array including first, second, third, and fourth pixel sets arranged in a 2x2 matrix in a plan view, each of the first, second, third and fourth pixel sets including four pixels, each of the pixels including two photoelectric conversion parts, wherein
the first and fourth pixel sets are configured to produce pixel signals corresponding to light in a first range of wavelengths,
the second pixel set is configured to produce pixel signals corresponding to light in a second range of wavelengths different than the first range of wavelengths,
the third pixel set is configured to produce pixel signals corresponding to light in a third range of wavelengths different than the first and second range of wavelengths,
each of the photoelectric conversion parts of the four pixels in the first pixel set are arranged in a first orientation,
each of the photoelectric conversion parts of the four pixels in the second pixel set are arranged in a second orientation perpendicular to the first orientation,
each of the photoelectric conversion parts of the four pixels in the third pixel set are arranged in the second orientation, and
each of the photoelectric conversion parts of the four pixels in the fourth pixel set are arranged in the first orientation.
10. The imaging device according to claim 9 , wherein the first range of wavelengths corresponds to a green color, the second range of wavelengths corresponds to a red color, and the third range of wavelengths corresponds to a blue color.
11. The imaging device according to claim 9 , wherein the photoelectric conversion parts are photodiodes.
12. The imaging device according to claim 9 , wherein the photoelectric conversion parts have a shape with a major axis, the major axis of the photoelectric conversion parts in the first orientation extending in a first direction, and the major axis of the photoelectric conversion parts in the second orientation extending in a second direction perpendicular to the first direction.
13. The imaging device according to claim 9 , wherein the first and fourth pixel sets respectively include a first color filter to produce a first color corresponding to the first range of wavelengths, the second pixel set includes a second color filter to produce a second color corresponding to the second range of wavelengths, and the third pixel set includes a third color filter to produce a third color corresponding to the third range of pixel wavelengths.
14. The imaging device according to claim 9 , wherein the photoelectric conversion parts are isolated from each other by an insulating layer.
15. The imaging device according to claim 9 , further comprising:
a charge holding part that holds charges generated in the photoelectric conversion parts, the charge holding part adding and outputting charges generated in the photoelectric conversion parts.
16. The imaging device according to claim 15 , wherein the charge holding part adds and outputs charges generated in the photoelectric conversion parts of all the pixels in each pixel set.
17. An electronic apparatus comprising:
a pixel array; and
at least one control circuit configured to drive the pixel array,
the pixel array including first, second, third, and fourth pixel sets arranged in a 2x2 matrix in a plan view, each of the first, second, third and fourth pixel sets including four pixels, each of the pixels including two photoelectric conversion parts, wherein
the first and fourth pixel sets are configured to produce pixel signals corresponding to light in a first range of wavelengths,
the second pixel set is configured to produce pixel signals corresponding to light in a second range of wavelengths different than the first range of wavelengths,
the third pixel set is configured to produce pixel signals corresponding to light in a third range of wavelengths different than the first and second range of wavelengths,
each of the photoelectric conversion parts of the four pixels in the first pixel set are arranged in a first orientation,
each of the photoelectric conversion parts of the four pixels in the second pixel set are arranged in a second orientation perpendicular to the first orientation,
each of the photoelectric conversion parts of the four pixels in the third pixel set are arranged in the second orientation, and
each of the photoelectric conversion parts of the four pixels in the fourth pixel set are arranged in the first orientation.
18. The electronic apparatus according to claim 17 , wherein the first range of wavelengths corresponds to a green color, the second range of wavelengths corresponds to a red color, and the third range of wavelengths corresponds to a blue color.
19. The electronic apparatus according to claim 17 , wherein the photoelectric conversion parts are photodiodes.
20. The electronic apparatus according to claim 17 , wherein the photoelectric conversion parts have a shape with a major axis, the major axis of the photoelectric conversion parts in the first orientation extending in a first direction, and the major axis of the photoelectric conversion parts in the second orientation extending in a second direction perpendicular to the first direction.