US 12,171,135 B2
Foldable display and terminal device
Chao Wang, Beijing (CN); Binfeng Feng, Beijing (CN); and Xingguo Liu, Beijing (CN)
Assigned to Beijing BOE Technology Development Co., Ltd., Beijing (CN); and Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN)
Appl. No. 17/598,967
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Jan. 13, 2021, PCT No. PCT/CN2021/071496
§ 371(c)(1), (2) Date Oct. 21, 2021,
PCT Pub. No. WO2021/208540, PCT Pub. Date Oct. 21, 2021.
Claims priority of application No. 202020585565.1 (CN), filed on Apr. 17, 2020.
Prior Publication US 2024/0057446 A1, Feb. 15, 2024
Int. Cl. H10K 59/80 (2023.01); H10K 102/00 (2023.01)
CPC H10K 59/873 (2023.02) [H10K 2102/311 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A foldable display, comprising a rigid substrate, a bonding layer, and a flexible display panel which are sequentially stacked;
wherein the rigid substrate comprises a first substrate area and a second substrate area, the second substrate area being foldable; and
the bonding layer comprises a first bonding area and a second bonding area, the first bonding area being laminated to the first substrate area and the second bonding area being laminated to the second substrate area;
wherein a target parameter of the first bonding area is larger than a target parameter of the second bonding area, the target parameter comprising at least one of a viscosity and an elastic modulus; and
the first bonding area is provided with a concave-convex structure.