The embodiment of the invention provides a curved display panel and device, wherein the display panel comprises an active element array substrate, a plurality of pixel units, an opposite substrate and spacers, wherein each pixel unit comprises a plurality of monochrome sub-pixel units arranged in an array; the monochrome sub-pixel units are different in color and are of a rectangular structure; the long side of each monochrome sub-pixel unit is parallel to the bending direction of the display panel; the opposite substrate is arranged oppositely to the active element array substrate; and the spacers are arranged between the active element array substrate and the opposite substrate; and the distribution density of the spacers is gradually increased from the middle of the display panel to the curved two sides. According to the curved display panel and device, the problem of non-uniform thickness of a panel box is solved and relatively good picture quality can be achieved when the display panel is viewed from the side.