A display device includes: a first substrate, including: a gate line having an extension direction; a switch unit electrically connecting to the gate line; a pixel electrode electrically connecting to the switch unit; and a slit in the pixel electrode, wherein a virtual line parallel to the extension direction passes through an end point of the slit which is closest to the gate line, and the pixel electrode is divided into a first portion and a second portion by the virtual line, wherein the first portion is closer to the gate line than the second portion, the first portion and the second portion respectively have a first width and a second width along the extension direction, the first width is a maximum width of the first portion, the second width is a maximum width of the second portion, and the second width is less than the first width.