US Patent 11765944 Display panel and manufacturing method thereof

A display panel, comprising a first display portion and at least one curved second display portion disposed on at least one side of the first display portion. The display panel further comprises: an array substrate; and a planarization layer, an anode layer, a pixel definition layer, a light-emitting layer, a cathode layer and an encapsulation layer sequentially disposed on the array substrate. The planarization layer comprises a plurality of first surfaces and a plurality of second surfaces, each of the plurality of second surfaces comprises a first end arranged close to the first display portion and a second end arranged away from of the first display portion, a vertical distance between the first end and a bottom of the planarization layer is less than a vertical distance between the second end and the bottom of the planarization layer.