A display device in which a non-display region where drain lines, gate lines and pixels are not formed is formed at a portion within a display region which is constituted of a mass of the pixels, drain route-around lines and gate route-around lines are formed by routing the drain lines and the gate lines separated by the non-display region around the non-display region, a line width of at least one of the drain route-around line and the gate route-around line is set such that the line width at an intersecting portion where the drain route-around line and the gate route-around line intersect with each other differs from the line width at a non-intersecting portion.