Flexible display panel and flexible display device

A flexible display panel, wherein

• the flexible display panel is rollable with respect to a rolling axis and comprises a flexible screen layer and an elastic support layer;
• in a first direction perpendicular to a direction of the rolling axis, the flexible screen layer and the elastic support layer are stacked;
• the elastic support layer includes a support mechanism and an elastic mechanism, the support mechanism is configured to support the flexible screen layer and is rollable with respect to the rolling axis;
• the support mechanism includes a plurality of supporter units that are sequentially arranged in a second direction perpendicular to the direction of the rolling axis, two adjacent supporter units are flexibly connected with each other, and the second direction is perpendicular to the first direction;
• the elastic mechanism is a spring leaf, the spring leaf is connected between the two adjacent supporter units in the second direction so as to generate the anti-rolling elastic force to maintain flatness of the flexible screen layer if the flexible screen layer is unrolled, and a cross section, which is perpendicular to the second direction, of the spring leaf is an arc.