US 11,974,475 B2
Flexible display panel, display device and forming method
Yulong Wei, Beijing (CN); Xiangdan Dong, Beijing (CN); Jun Yan, Beijing (CN); and Mengmeng Du, Beijing (CN)
Assigned to CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/425,222
Filed by CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Feb. 28, 2020, PCT No. PCT/CN2020/077264
§ 371(c)(1), (2) Date Jul. 22, 2021,
PCT Pub. No. WO2021/168828, PCT Pub. Date Sep. 2, 2021.
Prior Publication US 2022/0320239 A1, Oct. 6, 2022
Int. Cl. H10K 59/131 (2023.01); H10K 59/122 (2023.01); H10K 59/40 (2023.01); H10K 77/10 (2023.01); G06F 3/041 (2006.01)
CPC H10K 59/131 (2023.02) [H10K 59/122 (2023.02); H10K 59/40 (2023.02); H10K 77/111 (2023.02); G06F 3/0412 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A flexible display panel, comprising a display area and a non-display area, wherein the non-display area comprises a bending sub-area and a binding sub-area, and the bending sub-area is configured to bend the binding sub-area to a side away from the display area;
the display area comprises a driving circuit layer arranged on a substrate, the driving circuit layer comprises a source/drain electrode layer, a planarization layer arranged at a side, far away from the substrate, of the source/drain electrode layer, a pixel defining layer arranged at a side, far away from the substrate, of the planarization layer and a touch wiring layer arranged at a side, far away from the substrate, of the pixel defining layer, the bending sub-area comprises a first organic layer, a second organic layer and a metal wiring layer between the first organic layer and the second organic layer arranged on the substrate, the touch wiring layer is electrically connected to the metal wiring layer, and an orthographic projection of the touch wiring layer on a plane of the substrate is not located in the bending sub-area;
in response to the bending sub-area being in a bending state, a vertical distance from a bending neutral layer of the bending sub-area to the metal wiring layer is smaller than a preset distance.