Folding displaying screen

The utility model discloses a folding displaying screen which comprises a first plate piece, a second plate piece, a displaying screen, a flexible plate piece and a sealing plate. The first plate piece comprises a first mounting face, a first groove and a first hinged part. The second plate piece comprises a second mounting face, a second groove and a second hinged part. The displaying screen comprises a first part, a second part and a third part fixedly connected between the first part and the second part. The third part can be bent. The flexible plate piece at least covers the third part partially. A plurality of trapezoid-shaped bosses are arrayed on one side, toward a gap, of the flexible plate piece. The large ends of the trapezoid-shaped bosses are arranged on the flexible plate piece in an attached mode. The small ends of the trapezoid-shaped bosses are toward the third part. The sealing plate is arranged on the periphery side of the flexible plate piece in a surrounding mode and seals the gap. Protecting of bending resisting of the third part is achieved, and accordingly the service life of the folding displaying screen is prolonged.