Solid-State Image Sensing Device and Method for Driving the Same
First Claim
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1. A solid-state image sensing device comprising:
- a plurality of unit pixels arranged in rows and columns each of which outputs a pixel signal according to incident light; and
a plurality of floating diffusion portions each of which receives the pixel signals,wherein every two of the unit pixels share a corresponding one of the floating diffusion portions, the two unit pixels being respectively arranged in adjacent rows of adjacent columns.
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Abstract
A solid-state image sensing device includes: a plurality of unit pixels 21 arranged in rows and columns each of which outputs a pixel signal according to incident light; and a plurality of floating diffusion portions 22 each of which receives the pixel signals. Each of the floating diffusion portions 22 is shared by two unit pixels 21 which are respectively arranged in adjacent rows and which are respectively adjacent columns.
21 Citations
14 Claims
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1. A solid-state image sensing device comprising:
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a plurality of unit pixels arranged in rows and columns each of which outputs a pixel signal according to incident light; and a plurality of floating diffusion portions each of which receives the pixel signals, wherein every two of the unit pixels share a corresponding one of the floating diffusion portions, the two unit pixels being respectively arranged in adjacent rows of adjacent columns. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14)
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13. A method for driving a solid-state image sensing device including:
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a plurality of unit pixels arranged in rows and columns; a plurality of floating diffusion portions each of which is shared by every two of the unit pixels, the two unit pixels being respectively arranged in adjacent rows of adjacent columns; a plurality of vertical signal lines each of which is provided for each column; and a horizontal signal line which is connected to each of the vertical signal lines, the method comprising the steps of; (a) generating an image sensing signal of a row, and (b) generating an image sensing signal of another row adjacent to the row of step (a) wherein step (a) includes (a1) respectively transferring the pixel signals of the unit pixels arranged in the row of step (a) to corresponding each of the floating diffusion portions, (a2) respectively outputting the pixel signals transferred to the floating diffusion portions to corresponding each of the vertical signal lines, and (a3) successively reading out the pixel signals output to the vertical signal lines to the horizontal signal line, and step (b) includes (b1) respectively transferring the pixel signals of the unit pixels arranged in said another row to corresponding each of the floating diffusion portions, (b2) respectively outputting the pixel signals transferred to the floating diffusion portions corresponding each of the vertical signal lines, and (b3) successively reading out the pixel signals output to the vertical signal lines to the horizontal signal line, wherein step (b3) includes initiating reading-out of the pixel signals from the vertical signal line which is different from the vertical signal line at which reading-out of the pixel signals to the horizontal signal line is initiated in step (a3).
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Specification