Display device with differing contact hole sizes and method of fabricating the same

Abstract

A display device includes: a substrate; a first conductive layer on the substrate and including a first pattern; a first insulating layer on the first conductive layer; a semiconductor layer on the first insulating layer and including an active pattern; a second insulating layer on the semiconductor layer; and a second conductive layer on the second insulating layer, wherein the second conductive layer includes a first electrode partially in contact with the active pattern, the first electrode is in contact with the first pattern through a first contact hole, the first contact hole penetrates the first insulating layer and includes a first hole defined by a sidewall of the first insulating layer, and a second hole defined by a sidewall of the active pattern and a sidewall of the second insulating layer, and a width of the second hole is greater than a width of the first hole.