Solid-state imaging element, method for driving solid-state imaging element, and electronic apparatus
AssigneeSony Corporation
InventorsKoushi Uemura, Shingo Sanada, Kiyoshige Tsuji, Hideyuki Hanada
Life of this patent
Estimating the term…
Abstract
A solid-state imaging element of the present disclosure includes a pixel array unit in which unit pixels each including a photoelectric conversion unit are arranged two-dimensionally in a matrix, and a floating diffusion is shared between a plurality of the unit pixels, and a drive unit that drives to discard, into the floating diffusion, a part of a charge of a non-read pixel sharing the floating diffusion with a read pixel, during a reset period of the floating diffusion of the read pixel for reading the charge.
Claims13
A solid-state imaging element, comprising:
- a pixel array unit including a plurality of unit pixels and a floating diffusion, wherein
- each of the plurality of unit pixels includes a photoelectric conversion unit,
- the plurality of unit pixels is arranged two-dimensionally in a matrix,
- the floating diffusion is shared between the plurality of unit pixels, and
- the plurality of unit pixels includes a read pixel and a non-read pixel;
- and
- a drive unit configured to drive the plurality of unit pixels to discard, into the floating diffusion, a part of a charge of the non-read pixel that shares the floating diffusion with the read pixel, wherein
- the part of the charge of the non-read pixel is discarded during a reset period of the floating diffusion of the read pixel, and
- the read pixel is configured to read the charge.
A method for driving a solid-state imaging element, comprising:
- in the solid-state imaging element that comprises a pixel array unit, wherein the pixel array unit includes a plurality of unit pixels and a floating diffusion, each of the plurality of unit pixels includes a photoelectric conversion unit, the plurality of unit pixels is arranged two-dimensionally in a matrix, the floating diffusion is shared between the plurality of unit pixels, and the plurality of unit pixels includes a read pixel and a non-read pixel:
- discarding, into the floating diffusion, a part of a charge of the non-read pixel that shares the floating diffusion with the read pixel, wherein
- the part of the charge of the non-read pixel is discarded during a reset period of the floating diffusion of the read pixel, and
- the read pixel is configured to read the charge.
An electronic apparatus, comprising:
- a solid-state imaging element that comprises:
- a pixel array unit including a plurality of unit pixels and a floating diffusion, wherein
- each of the plurality of unit pixels includes a photoelectric conversion unit,
- the plurality of unit pixels is arranged two-dimensionally in a matrix,
- the floating diffusion is shared between the plurality of unit pixels, and
- the plurality of unit pixels includes a read pixel and a non-read pixel;
- and
- a drive unit configured to drive the plurality of unit pixels to discard, into the floating diffusion, a part of a charge of the non-read pixel that shares the floating diffusion with the read pixel, wherein
- the part of the charge of the non-read pixel is discarded during a reset period of the floating diffusion of the read pixel, and
- the read pixel is configured to read the charge.
Dependencies are inferred from the claim text.