Abstract: A display panel includes a display substrate, a filter structure and a cover plate. At least a part of the filter structure includes a filter layer, a lens layer and a filling layer, and the lens layer is located on a side of the filter layer away from the display substrate, and is provided with a first light transmission hole, and the side wall of the first light transmission hole is expanded along the direction away from the display substrate; the filling layer is filled in the first light transmission hole, and the refractive index of the filling layer is greater than that of the lens layer where the first light transmission hole filled by the filling layer is located.

Abstract: A display panel is provided. The display panel includes: a base substrate; a plurality of light-emitting units disposed on the base substrate; a plurality of protruding structures disposed on the base substrate, wherein the protruding structures correspond to the light-emitting units, and an orthographic projection of the protruding structure on the base substrate surrounds an orthographic projection of a corresponding light-emitting unit on the base substrate; and a first light-transmitting structure disposed on the base substrate provided with the protruding structures, wherein the first light-transmitting structure is disposed between two protruding structures corresponding to two adjacent light-emitting units; the first light-transmitting structure covers at least a portion of a sidewall of the protruding structure; and refractive index of a material of the first light-transmitting structure is greater than refractive index of a material of the protruding structure.