A liquid crystal display device, comprising: a first substrate; a second substrate disposed opposite to the first substrate; a liquid crystal layer; and a spacer, wherein the first substrate includes a first pixel row, a second pixel row, a first source line and a second source line that extend in the second direction, a first gate line that extends in the first direction between the first pixel row and the second pixel row, a first thin film transistor to which the first source line, and the first gate line are electrically connected, and a second thin film transistor to which the second source line, and the first gate line are electrically connected, and the spacer is disposed so as to overlap with at least a portion of the first thin film transistor and at least a portion of the second thin film transistor in plan view.