Display device

A display device. The display device includes: a substrate; a first conductive layer on the substrate; a buffer layer on the first conductive layer; a first semiconductor layer on the buffer layer; a gate insulating layer on the first semiconductor layer and the buffer layer; and a second conductive layer on the gate insulating layer; wherein the second conductive layer is in contact with the first conductive layer and the first semiconductor layer through the buffer layer and the first contact hole in the gate insulating layer. 显示装置。显示装置包括：基板；第一导电层，该第一导电层位于基板上；缓冲层，该缓冲层位于第一导电层上；第一半导体层，该第一半导体层位于缓冲层上；栅极绝缘层，该栅极绝缘层位于第一半导体层和缓冲层上；以及第二导电层，该第二导电层位于栅极绝缘层上；其中，第二导电层通过缓冲层和栅极绝缘层上的第一接触孔与第一导电层和第一半导体层接触。