An array substrate and a display panel are disclosed. A common electrode layer on the array substrate includes a common electrode trunk and multiple common electrode branches. A pixel electrode layer includes multiple interconnected pixel electrode branches, each of which includes a branch body and a branch end connected therewith. The branch end includes a first side opposite to the common electrode trunk to form a first gap, and a second side and a third side respectively disposed opposite to the corresponding common electrode branches to form a second gap and a third gap. A fourth gap is formed between the branch body and the common electrode branch. Of the first, the second and the third gaps, the width value corresponding to at least one gap is smaller than the width of the fourth gap.