Pixel circuit and image sensor including thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsMin-ji Hwang, Seung-jin Lee, Young-woo Lee, Seok-yong Hong
Life of this patent
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Abstract
An image sensor includes a pixel array including a first shared pixel and a second shared pixel that are adjacent to each other in a row direction. The first shared pixel includes two or more photo diodes in a first row and two or more photo diodes in a second row, and the first shared pixel includes a first floating diffusion region shared by the photo diodes of the first shared pixel. The second shared pixel includes two or more photo diodes in the first row and two or more photo diodes in the second row, and the second shared pixel includes a second floating diffusion region shared by the photo diodes of the second shared pixel.
Claims17
An image sensor comprising;
- a first shared pixel including four sub-pixels connected to a first floating diffusion region, the first shared pixel being configured to sense a red color;
- a second shared pixel including four sub-pixels connected to a second floating diffusion region, the second shared pixel being configured to sense a green color and disposed next to the first shared pixel in a first direction;
- a third shared pixel including four sub-pixels connected to a third floating diffusion region, the third shared pixel being configured to sense the green color and disposed next to the first shared pixel in a second direction perpendicular to the first direction;
- and
- a fourth shared pixel including four sub-pixels connected to a fourth floating diffusion region, the fourth shared pixel being configured to sense a blue color next to the third shared pixel,
- wherein the first shared pixel, the second shared pixel, and the fourth shared pixel are configured to be exposed to light during a first period of time, and
- wherein the third shared pixel is configured to be exposed to the light during a second period of time longer than the first period of time.
An image sensor comprising;
- a first shared pixel including four sub-pixels connected to a first floating diffusion region, the first shared pixel being configured to sense a green color;
- a second shared pixel including four sub-pixels connected to a second floating diffusion region, the second shared pixel being configured to sense a red color and disposed next to the first shared pixel in a first direction;
- a third shared pixel including four sub-pixels connected to a third floating diffusion region, the third shared pixel being configured to sense a blue color and disposed next to the first shared pixel in a second direction perpendicular to the first direction;
- and
- a fourth shared pixel including four sub-pixels connected to a fourth floating diffusion region, the fourth shared pixel being configured to sense the green color and disposed next to the second shared pixel in the second direction,
- wherein the first shared pixel, the second shared pixel, and the third shared pixel are configured to be exposed to light during a first period of time, and
- wherein the fourth shared pixel is configured to be exposed to the light during a second period of time longer than the first period of time.
Dependencies are inferred from the claim text.