An in-plane switching mode liquid crystal display device includes, among other features, a gate line, a common line, a data line, a thin film transistor connected to the gate line and the data line, a drain electrode, a first insulating layer to cover the entire surface of a first substrate except a pixel region and portions of the drain electrode and the common line; a first pixel line layer connected to the drain electrode and on a side of the first insulating layer, a first common line layer connected to the common line and on a side of the first insulating layer, a second insulating layer in a region that is not covered by the first insulating layer, a second pixel line layer on the second insulating layer and connected to the first pixel line layer, and a second common line layer on the second insulating layer and connected on the first common line layer.