A touch screen for a display device includes a base substrate having a sensing area, and a peripheral area disposed around the sensing area; an insulating layer including at least one contact hole; a sensor provided in the sensing area; and sensing lines connected to the sensor, the sensing lines comprising a first metal layer disposed in the periphery area, and a second metal layer electrically connected to the first metal layer through the contact hole. At least some of the sensing lines include a first portion adjacent to the contact hole, and a second portion spaced from the first portion, with the first portion and the second portion having different widths.