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

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

• forming a first electrode on a base substrate;
• forming a first insulating layer over the first electrode;
• and
• forming a second electrode on the first insulating layer, the second electrode having a plurality of second electrode portions arranged along a plane parallel to a surface of the base substrate and spaced apart from one another, the first electrode having overlapped portions that overlap the plurality of second electrode portions in a direction perpendicular to the surface of the base substrate;
• wherein the first electrode is one of a common electrode and a pixel electrode, and the second electrode is the other of the common electrode and the pixel electrode,
• wherein the plurality of second electrode portions comprises a first second electrode portion and a second second electrode portion adjacent to each other and spaced apart by one separation, and the first electrode comprises a first overlapped portion and a second overlapped portion, the first overlapped portion overlapping the first second electrode portion in the direction perpendicular to the surface of the base substrate, the second overlapped portion overlapping the second second electrode portion in the direction perpendicular to the surface of the base substrate, and
• wherein both of the first second electrode portion and the second second electrode portion and/or both of the first overlapped portion and the second overlapped portion have recesses, each of the recess is recessed towards the base substrate and an area of an opening of the recess is larger than an area of a bottom of the recess.