(Object) To increase the ratio of the opening in each pixel in a liquid crystal display device.(Means for Achieving Object) In a liquid crystal display device having an active matrix type liquid crystal display panel: TFT elements in two pixels which are adjacent to each other with one scanning signal line in between respectively have a gate connected to the scanning signal line and either a source or drain connected to a different video signal line; and between two adjacent scanning signal lines, a pixel having a TFT element of which the gate is connected to one of the two scanning signal lines and a pixel having a TFT element of which the gate is connected to the other scanning signal line are aligned in the direction in which the video signal lines extend, and either the sources or the drains of the two TFT elements are connected different video signal lines.