Bendable displaying apparatus and supporting device

A bendable displaying apparatus, comprising:

• two housings;
• a supporting device disposed between the two housings and pivotally connected to the two housings, wherein the supporting device includes:
• a retainer having two opposite end boards, wherein each of the two end boards of the retainer has two slanted sliding slots recessed therein, and two sides of the two housings are respectively and pivotally connected to the two end boards of the retainer;
• two supporting units disposed on the retainer and respectively located adjacent to the two end boards of the retainer, wherein each of the two supporting units includes:
• two connecting levers each having a first end portion and an opposite second end portion, wherein the first end portions of the connecting levers of the two supporting units are respectively and pivotally connected to the two sides of the two housings, and the second end portions of the connecting levers of the two supporting units each have a sliding shaft, and wherein the sliding shafts of the connecting levers of the two supporting units are respectively and slidably arranged in the slanted sliding slots of the retainer, so that the second end portions of the connecting levers of the two supporting units are respectively slidable relative to the two end boards of the retainer;
• and
• each of the two supporting units having an interlocking seat, wherein the interlocking seats of the two supporting units are liftably disposed on the retainer and each are connected to the two housings;
• a first supporting plate fixed to the interlocking seats of the two supporting units;
• two second supporting plates fixed to the connecting levers of the two supporting units;
• and
• two positioning mechanisms respectively arranged adjacent to and positioned with the interlocking seats of the two supporting units,
• wherein when the two housings are rotated to locate on a same plane and are located at a flat position, the sliding shafts of the connecting levers are arranged at one end of the slanted sliding slots adjacent to the interlocking seats,
• wherein when the two housings are rotated to stack with each other and are located at a folded position, the sliding shafts of the connecting levers are arranged at the other end of the slanted sliding slots away from the interlocking seats, and
• wherein when the two housings are rotated from the flat position toward the folded position, each of the sliding shafts is moved along the corresponding slanted sliding slot, and the two housings drive the interlocking seats of the two supporting units to downwardly move;
• and
• a bendable display mounted on the two housings, the first supporting plate, and the two second supporting plates,
• wherein when the two housings are rotated to stack with each other, the two housings rotate the connecting levers of the two supporting units to move the two second supporting plates along a direction away from each other, and the two housings drive the interlocking seats of the two supporting units to downwardly move the first supporting plate, so that the two second supporting plates and the first supporting plate jointly form a space that provides the bendable display to deform therein, and wherein the two positioning mechanisms are configured to allow the bendable displaying apparatus to be selectively maintained at the flat position and the folded position.