IMAGE SENSOR HAVING WIDE DYNAMIC RANGE, PIXEL CIRCUIT OF THE IMAGE SENSOR, AND OPERATING METHOD OF THE IMAGE SENSOR
    2.
    发明申请
    IMAGE SENSOR HAVING WIDE DYNAMIC RANGE, PIXEL CIRCUIT OF THE IMAGE SENSOR, AND OPERATING METHOD OF THE IMAGE SENSOR 有权
    具有宽动态范围的图像传感器,图像传感器的像素电路以及图像传感器的操作方法

    公开(公告)号:US20170013217A1

    公开(公告)日:2017-01-12

    申请号:US15190297

    申请日:2016-06-23

    CPC classification number: H04N5/37457 H04N5/23245 H04N5/35563

    Abstract: A pixel circuit includes a first photocharge accumulator including at least two photodiodes exposed to light for a long period of time, and a second photocharge accumulator including at least one photodiode exposed to light for a short period of time. The pixel circuit includes a first transfer controller that transfers photocharges accumulated in the first photocharge accumulator to a floating diffusion area, and a second transfer controller that transfers photocharges accumulated in the second photocharge accumulator to the floating diffusion area. The pixel circuit includes a driving transistor to generate a pixel signal according to the photocharges transferred to the floating diffusion area. A number of photodiodes of the first photocharge accumulator is greater than a number of photodiodes of the second photocharge accumulator.

    Abstract translation: 像素电路包括:第一光电荷累加器,其包括长时间暴露于光的至少两个光电二极管;以及第二光电荷累加器,其包括在短时间内暴露于光的至少一个光电二极管。 像素电路包括:第一转印控制器,其将累积在第一光电荷累加器中的光电荷传送到浮动扩散区域;以及第二转印控制器,其将累积在第二光电荷累加器中的光电荷转移到浮动扩散区域。 像素电路包括驱动晶体管,以根据传输到浮动扩散区域的光电荷产生像素信号。 第一光电荷累加器的多个光电二极管大于第二光电荷累加器的多个光电二极管。

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