Liquid crystal displayer displaying two-dimensional videos and three-dimensional videos in switchover mode

The invention discloses a liquid crystal displayer displaying two-dimensional videos and three-dimensional videos in a switchover mode. According to the liquid crystal displayer, scanning lines in each row are additionally provided with a plurality of switch units without additionally arranging a grid driver. The switch units are used for controlling charging of pixel units and electric charge sharing respectively, and therefore the purpose of independently controlling the pixel charging and electric charge sharing is achieved. The problem that flicker happens when the three-dimensional videos are displayed in the prior art can be solved under the situation that the extra grid driver is not arranged.