A liquid crystal display device includes: transistors and pixel electrodes respectively provided in pixels; a common electrode facing the pixel electrodes; gate lines extending along the first direction and supplying gate signals to the transistors respectively; gate lead lines extending along the second direction and respectively connected to the gate lines at at least one of a plurality of intersections between the gate lead lines and the gate lines; and data lines extending along the second direction and supplying data signals to the transistors respectively. The pixels are made up of a plurality of types of pixels arranged periodically and repeatedly along the first direction, the data lines and the gate lead lines are formed in a same layer, and either of the data lines and the gate lead lines are alternatively provided for boundaries between two pixels adjacent in the first direction.