Image sensor, pixel array, and operation method of the image sensor
AssigneeSamsung Electronics Co., Ltd.
InventorsYUN-HWAN JUNG, SUN-YOOL KANG, KYUNG-MIN KIM, HEE-SUNG CHAE, JAE-SEUNG HAN
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Abstract
An image sensor includes a pixel array including a first pixel and a second pixel which are connected to a first column line, and a row driver configured to control a read operation of the second pixel. A voltage of the first column line is determined based on a higher voltage among a voltage of a floating diffusion node of the first pixel and a voltage of a floating diffusion node of the second pixel during the read operation of the second pixel.
Claims20
An image sensor comprising:
- a pixel array comprising a first pixel and a second pixel which are connected to a first column line;
- and
- a row driver configured to control a read operation of the second pixel,
- wherein a voltage of the first column line is determined based on a higher voltage between a voltage of a floating diffusion node of the first pixel and a voltage of a floating diffusion node of the second pixel during the read operation of the second pixel.
A pixel array comprising:
- a first row pixel configured to generate a first pixel signal in response to receiving a clamp signal from outside;
- and
- a second row pixel configured to generate a second pixel signal based on an output of a photodiode,
- wherein a voltage applied to a column line connected to the first row pixel and the second row pixel is a voltage based on at least one of the first pixel signal and the second pixel signal.
An operation method of an image sensor comprising a plurality of pixels, the operation method comprising:
- resetting the plurality of pixels in a reset operation;
- applying a clamp signal, a voltage level of which decreases from a first voltage to a second voltage which is less than the first voltage during the reset operation, to a first row pixel;
- and
- turning on a transfer transistor to receive an output of a photodiode of a second row pixel.
Dependencies are inferred from the claim text.