Abstract: A display panel and a display device; the display panel includes a plurality of bonding pins. At least one bonding pin includes a first bonding electrode disposed on a side of an insulating layer group away from a base substrate, the insulating layer group having a first concave portion, the first bonding electrode having a second concave portion, an orthographic projection of the second concave portion on the base substrate being located within an orthographic projection of the first concave portion on the base substrate. The first bonding electrode includes at least a first conductor layer and a second conductor layer, and the at least one bonding pin further includes a filling portion disposed on a side of the second concave portion away from the base substrate, which is at least partially within the second concave portion.

Abstract: The present disclosure provides a mask plate, a display panel and a display device. The mask plate comprises: a transparent substrate; an opaque film layer, the opaque film layer being disposed on the transparent substrate. The opaque film layer includes a plurality of first regions and a plurality of second regions, a first sub-region in the first region and the second region are transmissive, and the remaining portion in the first region is semi-transmissive. The mask plate is used to form via holes in the planarization layer of the display panel by exposure, so that the angles between the metal electrode layers disposed in the via holes and the source/drain layers of the display panel are small and diversified, decreasing the visibility of the metal electrode layers.

Abstract: The present disclosure provides a mask plate, a display panel and a display device. The mask plate comprises: a transparent substrate; an opaque film layer, the opaque film layer being disposed on the transparent substrate. The opaque film layer includes a plurality of first regions and a plurality of second regions, a first sub-region in the first region and the second region are transmissive, and the remaining portion in the first region is semi-transmissive. The mask plate is used to form via holes in the planarization layer of the display panel by exposure, so that the angles between the metal electrode layers disposed in the via holes and the source/drain layers of the display panel are small and diversified, decreasing the visibility of the metal electrode layers.