Display device

A display device having a touch sensor function in addition to a video display function, comprising:

• signal lines formed in a display area of a substrate, including a plurality of video lines extending in a first direction and a plurality of scan lines extending in a second direction intersecting the first direction;
• a plurality of common electrodes formed in the display area so as to extend in the first direction, for being used for video display and touch detection;
• a plurality of video signal transmission lines arranged along a first edge among edges of a signal line laying area where the video lines and the scan lines are arranged on the substrate;
• a plurality of scan circuits arranged on the substrate along a second edge among the edges of the signal line laying area, the second edge being an edge with which ends of the scan lines are aligned;
• and
• a common electrode signal transmission line arranged on the substrate along a third edge among the edges of the signal line laying area, the third edge being an edge opposed to the first edge among edge of the signal line laying area, for applying a reference potential signal or a touch detection signal to the common electrode,
• wherein
• the signal line laying area has a shape including a first overlapping edge where the first edge overlaps the second edge and a second overlapping edge where the first edge overlaps the third edge,
• in a part of a frame area positioned outside the signal line laying area on the substrate, the scan circuit is arranged more outward than the video signal transmission line, and
• in a part of the frame area adjacent to the second overlapping edge, the scan circuit is arranged more outward than the common electrode signal transmission line.