US 12,225,753 B2
Display module and display apparatus
Xin Bi, Beijing (CN); Wei Gong, Beijing (CN); Yanli Wang, Beijing (CN); Jiaxiang Wang, Beijing (CN); Yangyang Cai, Beijing (CN); and Xinqi Lin, Beijing (CN)
Assigned to CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/915,529
Filed by CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Oct. 21, 2021, PCT No. PCT/CN2021/125421
§ 371(c)(1), (2) Date Sep. 29, 2022,
PCT Pub. No. WO2022/095716, PCT Pub. Date May 12, 2022.
Claims priority of application No. 202022551399.6 (CN), filed on Nov. 6, 2020.
Prior Publication US 2023/0123422 A1, Apr. 20, 2023
Int. Cl. G06F 1/00 (2006.01); G06F 1/16 (2006.01); H05K 5/02 (2006.01); H10K 50/84 (2023.01); H10K 102/00 (2023.01)
CPC H10K 50/84 (2023.02) [G06F 1/1652 (2013.01); H05K 5/02 (2013.01); H10K 2102/311 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display module comprising:
a flexible display panel comprising a display portion, a binding portion at a back side of the display portion, and a bending portion connecting the display portion and the binding portion;
a first back film located between the display portion and the binding portion and fitted to the back side of the display portion, wherein an orthographic projection of the first back film on a reference plane is located in or overlaps with an orthographic projection of the display portion on the reference plane; a side edge of the first back film close to the bending portion is a first side edge;
a second back film fitted to a side of the binding portion facing the display portion, wherein an orthographic projection of the second back film on the reference plane is located in or overlaps with an orthographic projection of the binding portion on the reference plane; a side edge of the second back film close to the bending portion is a second side edge;
an auxiliary support layer located between the first back film and the second back film, wherein the auxiliary support layer is bonded with the first back film through a first adhesive layer, and is bonded with the second back film through a second adhesive layer; a side edge of the auxiliary support layer close to the bending portion is a third side edge; wherein a spacing between the third side edge and the first side edge ranges from 0 to 0.35 mm, a spacing between the third side edge and the second side edge ranges from 0 to 0.35 mm; and
an elastic modulus of the auxiliary support layer is greater than an elastic modulus of the first back film and an elastic modulus of the second back film, and the reference plane is a plane perpendicular to a thickness direction of the display module.