A case for supporting a foldable display panel, the case comprising: a first main body located to correspond to a first area of the foldable display panel; a second main body adjoining the first main body and located to correspond to a second area of the foldable display panel; a hinge connecting the first main body and the second main body, wherein the first main body and the second main body are foldable relative to each other, so that the second area of the foldable display panel faces the first area; wherein each of the first main body and the second main body includes a floating space (FS1, FS2) adjoining the hinge, into which a part of each of the first area and the second area of the foldable display panel project when the first main body is folded in the direction of the second main body; a sliding groove formed in one or more of the first main body and the second main body; a mover located in the sliding groove for attachment to a rear surface of the foldable display panel, and slidable towards and away from a first end of the first main body, wherein the sliding groove slidably guides the mover, the said mover being adapted to resist movement of a correspondingly located first end of the foldable display panel away from the first end of the first main body; a first stopper or fastener (211, 213) indented from the sliding groove and a second stopper or fastener (241, 243) protruding downwards from the mover into the sliding groove and facing the first stopper or fastener (211, 213); and an elastic body (250, 253, 280, 290) mounted between the first stopper or fastener (211, 213) of the first main body and the second stopper or fastener (241, 243) of the mover, wherein the first stopper or fastener (211, 213) supports one end of the elastic body and the second stopper or fastener (241, 243) supports the other end of the elastic body, wherein the elastic body is configured to generate an elastic restitution force for urging the first end of the foldable display panel towards the said first end of the first main body. a first main body located to correspond to a first area of the foldable display panel; a second main body adjoining the first main body and located to correspond to a second area of the foldable display panel; a hinge connecting the first main body and the second main body, wherein the first main body and the second main body are foldable relative to each other, so that the second area of the foldable display panel faces the first area; wherein each of the first main body and the second main body includes a floating space (FS1, FS2) adjoining the hinge, into which a part of each of the first area and the second area of the foldable display panel project when the first main body is folded in the direction of the second main body; a sliding groove formed in one or more of the first main body and the second main body; a mover located in the sliding groove for attachment to a rear surface of the foldable display panel, and slidable towards and away from a first end of the first main body, wherein the sliding groove slidably guides the mover, the said mover being adapted to resist movement of a correspondingly located first end of the foldable display panel away from the first end of the first main body; a first stopper or fastener (211, 213) indented from the sliding groove and a second stopper or fastener (241, 243) protruding downwards from the mover into the sliding groove and facing the first stopper or fastener (211, 213); and an elastic body (250, 253, 280, 290) mounted between the first stopper or fastener (211, 213) of the first main body and the second stopper or fastener (241, 243) of the mover, wherein the first stopper or fastener (211, 213) supports one end of the elastic body and the second stopper or fastener (241, 243) supports the other end of the elastic body, wherein the elastic body is configured to generate an elastic restitution force for urging the first end of the foldable display panel towards the said first end of the first main body.