A liquid crystal display device includes: a display area; a non-display area; a plurality of gate lines; a plurality of source lines; a plurality of thin film transistors; a gate driver; a source driver; a control unit configured to supply a control signal to the source driver; and an auxiliary line extending in the non-display area from an end of one of the plurality of source lines to another end thereof, wherein each of the plurality of thin film transistors is turned on and off when one of the plurality of gate signals supplied to one of the plurality of gate lines connected to that thin film transistor changes to an ON voltage level and an OFF voltage level respectively, and the control signal rises at a different timing from a fall in one of the plurality of gate signals.