The present application relates to a display panel and a mask plate for fabricating a display panel. The mask plate for fabricating a display panel includes: a first surface; a second surface opposite to the first surface; and a plurality of through holes spaced apart from each other. The through hole has a first opening formed on the first surface, and a second opening formed on the second surface. An area of the second opening is larger than an area of the first opening. The second openings are arranged in parallel in a first predetermined direction. The first predetermined direction has a predetermined angle with respect to a horizontal direction or a vertical direction of the mask plate, and the predetermined angle does not include 90°.