公开(公告)号：US09673237B2

公开(公告)日：2017-06-06

申请号：US14101376

申请日：2013-12-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seoung-Hyun Kim ,  Yoon-Dong Park ,  Yong-Jei Lee ,  Joo-Yeong Gong ,  Hee-Woo Park ,  Seung-Won Cha ,  Sung-Chul Kim

IPC: H01L27/146

CPC classification number: H01L27/14612 ,  H01L27/14605 ,  H01L27/1461 ,  H01L27/14641

Abstract: A depth pixel of a three-dimensional image sensor includes a first photo gate which is turned on/off in response to a first photo control signal, a first photo detection area configured to generate first charges based on a received light reflected from a subject when the first photo gate is turned on, a first transmission gate which is turned on/off in response to a first transmission control signal, a first floating diffusion area configured to accumulate the first charges generated from the first photo detection area when the first transmission gate is turned on, and a first compensation unit configured to generate second charges which are different from the first charges based on ambient light components included in the received light to supply the second charges to the first floating diffusion area.

公开(公告)号：US09344657B2

公开(公告)日：2016-05-17

申请号：US14093083

申请日：2013-11-29

Applicant: Samsung Electronics Co., Ltd

Inventor： Seoung-Hyun Kim ,  Yoon-Dong Park ,  Yong-Jei Lee ,  Joo-Yeong Gong ,  Hee-Woo Park ,  Seung-Won Cha

IPC: H04N5/378 ,  G01C15/06 ,  G01S17/89 ,  G01S7/491 ,  G01S7/493 ,  H01L27/146

CPC classification number: H04N5/378 ,  G01C15/06 ,  G01S7/4914 ,  G01S7/493 ,  G01S17/89 ,  H01L27/14603 ,  H01L27/14609

Abstract: A depth pixel of an image sensor includes a depth sensing element configured to generate first charges that are photo-electrically converted from a light reflected from an object, a first floating diffusion node configured to receive the first charges from the depth sensing element, a second floating diffusion node configured to output second charges corresponding to a component of a reflection light where a component of an ambient light is cancelled, and an ambient light cancellation circuit configured to detect the ambient light to control a barrier level of a charge transfer path between the first floating diffusion node and the second floating diffusion node in response to the ambient light.

Abstract translation: 图像传感器的深度像素包括深度感测元件，其被配置为产生从被检体反射的光光电转换的第一电荷，被配置为从深度感测元件接收第一电荷的第一浮动扩散节点，第二 浮动扩散节点，其被配置为输出对应于环境光的分量被消除的反射光的分量的第二电荷;以及环境光消除电路，被配置为检测环境光以控制电荷转移路径的屏障水平 第一浮动扩散节点和第二浮动扩散节点响应于环境光。