Provided is a liquid crystal display device in which a source line is divided in a screen and the screen is driven in a horizontally divided state. A divided position (40) between a source line (30u) in an upper display region and a source line (30d) in a lower display region is arranged at an intersecting part between a source line (30) and a gate line (32). A part of the source line (30), which overlaps with a gate line (32a) on which the divided position 40 is present, has a planar shape additionally including an expanded part (46) (protruding portion) having the same area as a removed part of the source line (30) at the divided position (40), as compared to a part of the source line (30), which overlaps with a gate line (32b) on which the divided position (40) is absent.