US 12,279,058 B2
Image sensor including a capacitor having a boosting control signal transitioned from a first level to a lower second level
Eun Sub Shim, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Mar. 7, 2023, as Appl. No. 18/118,307.
Claims priority of application No. 10-2022-0114313 (KR), filed on Sep. 8, 2022.
Prior Publication US 2024/0089626 A1, Mar. 14, 2024
Int. Cl. H04N 5/335 (2011.01); H04N 25/709 (2023.01); H04N 25/78 (2023.01)
CPC H04N 25/709 (2023.01) [H04N 25/78 (2023.01)] 20 Claims
OG exemplary drawing
 
1. An image sensor comprising:
a pixel array including pixels including a photoelectric element and a boosting capacitor with one electrode connected to a first node to which a charge generated from the photoelectric element is transmitted, and outputting a pixel voltage according to a voltage of the first node;
a row driver outputting a reset signal that resets the voltage of the first node as a power source voltage, a boosting control signal applied to the other electrode of the boosting capacitor, and a transmission signal transmitting the charge to the first node;
a read-out circuit receiving the pixel voltage as a first input signal before the transmission signal is output to the pixel, receiving the pixel voltage as a second input signal after the transmission signal is output to the pixel, and outputting image data by using the first input signal and the second input signal; and
a controller controlling the row driver so as to change the boosting control signal from a first level to a second level lower than the first level after changing the reset signal from an enable level to a disable level, and controlling the read-out circuit so as to receive the first input signal and the second input signal within a section in which the boosting control signal is maintained as the second level.