The invention discloses a liquid crystal panel used for 3D display, a driving method and a pixel optimization method. The liquid crystal panel comprises a display panel and an FPR film attached to the surface of the display panel. The display panel is provided with sub-pixel units in many rows and lines. The units are distributed in an orthogonality mode. The FPR film is divided into a first region and a second region used for displaying images of a right eye. The first region and the second region are arrayed in the manner of being parallel to the row direction of the sub-pixel units at intervals. The first region and the second region arrayed at intervals cover the two rows of the sub-pixel units. The liquid crystal panel is capable of reducing production cost of 3D display equipment in order to improve resolution ratio and display image quality.