Active pixel sensor with sensing circuits and output circuits disposed on the same substrate
First Claim
1. An active pixel sensor comprising:
- a substrate divided into a plurality of pixel rows, wherein a plurality of pixel areas are disposed on the plurality of pixel rows;
a plurality of sensing circuits disposed in the pixel areas on the pixel rows excluding a specific pixel row among the plurality of pixel rows, wherein the plurality of sensing circuits are further disposed on a plurality of pixel columns to form an array, and each of the plurality of sensing circuits comprises a sensing element, a transfer transistor, and a floating diffusion node; and
a plurality of output circuits disposed in the pixel areas on the specific pixel row,wherein the sensing circuits on the same pixel column are coupled to the same output circuit,wherein the sensing circuits on the same pixel column are coupled to the same output circuit through a connection line, andwherein in each sensing circuit, a first terminal of the sensing element is coupled to a ground, and a second terminal of the sensing element is coupled to a first node, a first terminal of the transfer transistor is coupled to the first node, a control terminal of the transfer transistor receives a scan signal, a second terminal of the transfer transistor is coupled to the floating diffusion node, and the floating diffusion node is coupled to the corresponding connection line.
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Abstract
An active pixel sensor is provided. The active pixel sensor includes a substrate, a plurality of sensing circuits, and a plurality of output circuits. The substrate is divided into a plurality of pixel rows. A plurality of pixel areas are disposed on the plurality of pixel rows. The plurality of sensing circuits are disposed in the pixel areas on the pixel rows excluding a specific pixel row among the plurality of pixel rows. The plurality of sensing circuits are further disposed on a plurality of pixel columns to form an array. Each of the plurality of sensing circuits includes a sensing element, a transfer transistor, and a floating diffusion node. The plurality of output circuits are disposed in the pixel areas on the specific pixel row. The sensing circuits on the same pixel column are coupled to the same output circuit.
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Citations
14 Claims
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1. An active pixel sensor comprising:
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a substrate divided into a plurality of pixel rows, wherein a plurality of pixel areas are disposed on the plurality of pixel rows; a plurality of sensing circuits disposed in the pixel areas on the pixel rows excluding a specific pixel row among the plurality of pixel rows, wherein the plurality of sensing circuits are further disposed on a plurality of pixel columns to form an array, and each of the plurality of sensing circuits comprises a sensing element, a transfer transistor, and a floating diffusion node; and a plurality of output circuits disposed in the pixel areas on the specific pixel row, wherein the sensing circuits on the same pixel column are coupled to the same output circuit, wherein the sensing circuits on the same pixel column are coupled to the same output circuit through a connection line, and wherein in each sensing circuit, a first terminal of the sensing element is coupled to a ground, and a second terminal of the sensing element is coupled to a first node, a first terminal of the transfer transistor is coupled to the first node, a control terminal of the transfer transistor receives a scan signal, a second terminal of the transfer transistor is coupled to the floating diffusion node, and the floating diffusion node is coupled to the corresponding connection line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An active pixel sensor comprising:
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a substrate comprising a plurality of pixel areas which are disposed on a plurality of pixel columns and a plurality of pixel rows to form an array; a plurality of sensing circuits disposed in the pixel areas on the pixel rows excluding a specific pixel row among the plurality of pixel rows, wherein each of the plurality of sensing circuits comprises a sensing element, a transfer transistor, and a floating diffusion node; and a plurality of output circuits disposed in the pixel areas on the specific pixel row, wherein the sensing circuits on the same pixel column are coupled to the same output circuit, wherein the sensing circuits on the same pixel column are coupled to the same output circuit through a connection line, and wherein in each sensing circuit, a first terminal of the sensing element is coupled to a ground, and a second terminal of the sensing element is coupled to a first node, a first terminal of the transfer transistor is coupled to the first node, a control terminal of the transfer transistor receives a scan signal, a second terminal of the transfer transistor is coupled to the floating diffusion node, and the floating diffusion node is coupled to the corresponding connection line. - View Dependent Claims (11, 12, 13, 14)
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Specification