Patent ID: 11917775
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC H

Claim 0:
1. A foldable display device, comprising a casing frame, a flexible display module arranged on the casing frame, and a pull-back device;
wherein:
the casing frame comprises a first and a second frame body hinged with the first frame body, and a hinged portion between the first and the second frame body corresponds to a bending area of the flexible display module;
a support plate is arranged on one side of the flexible display module facing away from a display side, the support plate is arranged close to a first end of the flexible display module and is slidably connected to the second frame body, and a portion of the flexible display module close to a second end is fixed on the first frame body;
the pull-back device is arranged between the support plate and the second frame body, and is configured to exert a force on the flexible display module for flattening the bending area of the flexible display module when the flexible display module is in an unfolded state;
the support plate comprises a first side surface facing away from the display side of the flexible display module, and the pull-back device comprises a guide portion and an abutting portion arranged on the first side surface of the support plate, a guide post slidably fitted with the guide portion, and an elastic member arranged on the guide post;
a position-limiting portion is arranged on the second frame body, and is configured to abut against a first end of the guide post when the flexible display module is in the unfolded state; and
the elastic member is configured to be compressed and abut against the abutting portion when the flexible display module is in the unfolded state.