US 12,282,362 B2
Under-screen support structure and display device
Xiaofei Luo, Beijing (CN)
Assigned to BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/631,406
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Apr. 8, 2021, PCT No. PCT/CN2021/085872
§ 371(c)(1), (2) Date Jan. 28, 2022,
PCT Pub. No. WO2021/232980, PCT Pub. Date Nov. 25, 2021.
Claims priority of application No. 202010434982.0 (CN), filed on May 21, 2020.
Prior Publication US 2022/0276678 A1, Sep. 1, 2022
Int. Cl. G06F 1/16 (2006.01)
CPC G06F 1/1656 (2013.01) [G06F 1/1624 (2013.01); G06F 1/1652 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An under-screen supporting structure, configured to support a rollable and slidable display screen in a display apparatus, and comprising:
a sliding middle frame,
a rotating shaft, and
a supporting chain, wherein
the rotating shaft is installed on one side, facing a rolling and sliding part of the display screen, of the sliding middle frame, and the rotating shaft is in transmission connection with the display screen through the supporting chain; and
the supporting chain comprises a plurality of sections of supporting strips, and an extending direction of the supporting strips is parallel to an axis of the rotating shaft; and cross sections, perpendicular to the axis of the rotating shaft, of the supporting strips are trapezoidal, and sizes of one side, facing away from the rotating shaft, of the supporting strips are greater than sizes of another one side, close to the rotating shaft, of the supporting strips;
wherein one side, facing away from the rotating shaft, of the supporting chain is in transmission connection with the display screen through a buffer layer; wherein a material of the buffer layer is silica gel;
wherein the buffer layer is disposed between the rolling and sliding part of the display screen and the supporting chain, to prevent the supporting chain from damaging the display screen;
wherein the sliding middle frame contacts with one side, facing away from the display screen, of the supporting chain;
wherein an outer ring of the rotating shaft is a polygon, and any edge of the polygon is matched with any section of the supporting strips;
wherein a length of any edge of the polygon is equal to a size of one side, close to the rotating shaft, of any section of the supporting strips.