According to one embodiment, a display device includes a first power line located at a first end portion of a non-display region, a second power line located at a second end portion, a first auxiliary line disposed at a corner portion of a display region, and a second auxiliary line disposed on a center portion side of the display region, wherein the first auxiliary line includes a first resistance adjustment portion that adjusts resistance of the first auxiliary line, the second auxiliary line includes a second resistance adjustment portion that adjusts resistance of the second auxiliary line, and a first length of the first resistance adjustment portion is longer than a second length of the second resistance adjustment portion.