Display device

A display device, comprising:

• a display panel comprising:
• a display area, wherein a plurality of sub-pixels provided in an array, and a plurality of scanning lines and a plurality of data lines intersecting each other are provided in the display area, the plurality of scanning lines extend along a first direction and the plurality of data lines extend along a second direction different from the first direction;
• and
• a peripheral area surrounding the display area;
• a flexible circuit board, electrically connected with the display panel and comprising:
• a first circuit board, comprising a first substrate, and a main contact pad, a first wire and a second wire provided on the first substrate, wherein the main contact pad comprises a first contact pad and a second contact pad, the first wire is electrically connected with the first contact pad, and the second wire is electrically connected with the second contact pad;
• a second circuit board, comprising a second substrate, and a relay contact pad and a third wire provided on the second substrate, wherein the relay contact pad comprises a third contact pad and a fourth contact pad, and the third contact pad and the fourth contact pad are connected with each other through the third wire;
• and
• a conductive portion, configured for electrically connecting the main contact pad and the relay contact pad, wherein the conductive portion comprises a first conductive portion and a second conductive portion;
• wherein the first wire and a first end of the third wire are electrically connected with each other through the first conductive portion, and the second wire and a second end of the third wire are electrically connected with each other through the second conductive portion,
• wherein an overlapping region is provided between the first circuit board and the second circuit board in a direction perpendicular to a plane where the first circuit board or the second circuit board is located, and
• wherein the second circuit board further comprises:
• a plurality of through holes penetrating through the second substrate, wherein each through hole is provided to correspond to the main contact pad;
• and a connection portion which covers at least a portion of an inner wall of the through hole and is connected with the relay contact pad;
• the conductive portion fills in the through hole and is connected with the connection portion, and the conductive portion extends from the through hole toward the first substrate to be connected with the main contact pad on the first substrate.