Display device comprising a peripheral circuit having a transistor and a black matrix including an opening in a peripheral area

A display device comprising:

• a first substrate including a first gate wiring extending in a first direction, a second gate wiring arranged next to the first gate wiring in a second direction intersecting the first direction, a first wiring extending in the second direction, a second wiring arranged next to the first wiring in the first direction, and a peripheral circuit arranged in a peripheral area outside of a display area;
• and
• a second substrate including a black matrix,
• wherein
• each of the first wiring and the second wiring is arranged in the peripheral area,
• each of the first wiring and the second wiring crosses the first gate wiring and the second gate wiring,
• the black matrix has a first portion extending parallel to the first gate wiring and overlapping with the first gate wiring, a second portion extending parallel to the second gate wiring and overlapping with the second gate wiring, a third portion extending parallel to the first wiring and overlapping with the first wiring, a fourth portion extending parallel to the second wiring and overlapping with the second wiring, and an opening surrounded by the first portion, the second portion, the third portion and the fourth portion, in the peripheral area,
• the peripheral circuit includes a transistor,
• a semiconductor layer of the transistor overlaps the third portion and is arranged inside of the third portion.