公开(公告)号：US20130229556A1

公开(公告)日：2013-09-05

申请号：US13864703

申请日：2013-04-17

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Zenzo SUZUKI ,  Katsumi DOSAKA

IPC: H04N5/335

CPC classification number: H01L27/14603 ,  H01L27/14609 ,  H01L27/14641 ,  H01L27/14645 ,  H04N5/335 ,  H04N5/347 ,  H04N5/3559 ,  H04N5/37452 ,  H04N5/37457 ,  H04N5/378

Abstract: An image pickup apparatus that makes it possible to achieve both high picture quality and a wide dynamic range is provided. Each pixel unit included in the image pickup apparatus includes: four photodiodes; four transfer transistors; a charge storage portion (four floating diffusions) for storing electric charges generated at the photodiodes; an amplification transistor; a select transistor; and a reset transistor. The image pickup apparatus further includes multiple coupling transistors. Each coupling transistor couples together the charge storage portions of two pixel units of the pixel units. A scanning circuit switches on or off the coupling transistors according to read mode.

Abstract translation: 提供了一种能够实现高图像质量和宽动态范围的图像拾取装置。 包括在图像拾取装置中的每个像素单元包括：四个光电二极管; 四个传输晶体管; 用于存储在光电二极管处产生的电荷的电荷存储部分（四个浮动扩散）; 放大晶体管; 选择晶体管; 和复位晶体管。 图像拾取装置还包括多个耦合晶体管。 每个耦合晶体管将像素单元的两个像素单元的电荷存储部分耦合在一起。 扫描电路根据读取模式来接通或关闭耦合晶体管。