Array substrate and method of manufacturing the same, and display device

A method of manufacturing an array substrate, comprising steps of:

• forming a pattern of first signal lines on a base substrate;
• forming an insulating layer on the first signal lines;
• and
• forming a pattern of second signal lines on the insulating layer, the first signal lines and the second signal lines extending in different directions so as to form overlapping regions therebetween;
• wherein after forming the insulating layer and before forming the pattern of the second signal lines, the method further comprises a step of:
• forming a pattern of electrically conductive connecting portions on the insulating layer that at least cover one of the overlapping regions, such that the connecting portions electrically contact only the corresponding second signal lines only within the overlapping regions and only extend within regions corresponding to the overlapping regions, the connecting portions located within the overlapping regions formed by one of the first signal lines and all of the second signal lines are electrically insulated from each other, and the connecting portions located within the overlapping regions formed by one of the second signal lines and all of the first signal lines are electrically insulated from each other.