Patent ID: 11917311
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An image sensor comprising:
a pixel array including a plurality of unit pixels,
wherein each of the unit pixels comprises:
a first photoelectric converter configured to convert received light into charges;
a first transfer transistor electrically connected between the first photoelectric converter and a first node;
a connection transistor electrically connected between a second node and the first node;
a dual conversion transistor electrically connected between a third node and the second node;
a reset transistor electrically connected between a pixel voltage node and the second node;
a second transfer transistor electrically connected between a fourth node and the third node;
a second photoelectric converter electrically connected to the fourth node and configured to convert the received light into charges;
a first switch electrically connected between the second photoelectric converter and the fourth node;
a first capacitor electrically connected to the fourth node and the pixel voltage node, wherein the first capacitor is configured to store charges that overflow from the second photoelectric converter; and
a second capacitor electrically connected to the third node and the pixel voltage node, wherein the second capacitor is configured to store charges that overflow from the second photoelectric converter,
wherein the first switch is configured to be turned on after the second transfer transistor is turned on and the first, second, third, and fourth nodes are reset by the reset transistor.