Liquid Crystal Display (LCD), 3D imaging apparatus and operating methods thereof are disclosed. The operating method for the disclosed LCD includes the steps of: driving a pixel array of the LCD to display a frame of data by a first frame scan and a second frame scan; and, controlling a backlight module of the LCD in accordance with the first frame scan and the second frame scan. In the first frame scan, the scan lines of pixel array are driven in groups, wherein, in each group, all rows corresponding thereto are driven by identical data. The rows which have not been driven by correct data in the first frame scan are driven again and corrected in the second frame scan.