- Patent Title: Depth pixel included in three-dimensional image sensor, three-dimensional image sensor including the same and method of operating depth pixel included in three-dimensional image sensor
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Application No.: US14101376Application Date: 2013-12-10
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Publication No.: US09673237B2Publication Date: 2017-06-06
- Inventor: Seoung-Hyun Kim , Yoon-Dong Park , Yong-Jei Lee , Joo-Yeong Gong , Hee-Woo Park , Seung-Won Cha , Sung-Chul Kim
- Applicant: SAMSUNG ELECTRONICS CO., LTD.
- Applicant Address: KR Suwon-si, Gyeonggi-do
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si, Gyeonggi-do
- Agency: Volentine & Whitt, PLLC
- Priority: KR10-2013-0014260 20130208
- Main IPC: H01L27/146
- IPC: H01L27/146
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.
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