PIXEL, A PIXEL ARRAY, AND AN IMAGE SENSOR INCLUDING THE SAME FOR INDICATING THE STRENGTH OF LIN-LOG OF A WDR(Wide Dynamic Range)

摘要

PURPOSE: A pixel, a pixel array, and an image sensor including the same are provided to automatically make an additional capacity without external biasing control by using a varactor.;CONSTITUTION: A pixel includes a PD(PhotoDiode), an FD(Floating Diffusion), a varactor capacitor, a TX(Transfer Transistor), RX(Reset Transistor), and DX(Drive Transistor). The capacitor accumulates an electric charge transformed in the PD. The varactor capacitor is connected to the capacitor. The varator capacitor varies a capacitance according to the electric potential of the capacitor. The switching device outputs the electric potential of the varactor capacitor.;COPYRIGHT KIPO 2013